Mercurial > vim
view src/os_unix.c @ 22591:c4bb7a69c6a2
Added tag v8.2.1843 for changeset 13f4aee01ce5cdaac010879571a8bb87546bd66b
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Tue, 13 Oct 2020 21:15:05 +0200 |
| parents | 0f205ff4a0fd |
| children | fa0aac214da6 |
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/* vi:set ts=8 sts=4 sw=4 noet: * * VIM - Vi IMproved by Bram Moolenaar * OS/2 port by Paul Slootman * VMS merge by Zoltan Arpadffy * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ /* * os_unix.c -- code for all flavors of Unix (BSD, SYSV, SVR4, POSIX, ...) * Also for OS/2, using the excellent EMX package!!! * Also for Atari MiNT. * * A lot of this file was originally written by Juergen Weigert and later * changed beyond recognition. */ #include "vim.h" #ifdef FEAT_MZSCHEME # include "if_mzsch.h" #endif #include "os_unixx.h" // unix includes for os_unix.c only #ifdef USE_XSMP # include <X11/SM/SMlib.h> #endif #ifdef HAVE_SELINUX # include <selinux/selinux.h> static int selinux_enabled = -1; #endif #ifdef HAVE_SMACK # include <attr/xattr.h> # include <linux/xattr.h> # ifndef SMACK_LABEL_LEN # define SMACK_LABEL_LEN 1024 # endif #endif #ifdef __CYGWIN__ # ifndef MSWIN # include <cygwin/version.h> # include <sys/cygwin.h> // for cygwin_conv_to_posix_path() and/or // for cygwin_conv_path() # ifdef FEAT_CYGWIN_WIN32_CLIPBOARD # define WIN32_LEAN_AND_MEAN # include <windows.h> # include "winclip.pro" # endif # endif #endif #ifdef FEAT_MOUSE_GPM # include <gpm.h> // <linux/keyboard.h> contains defines conflicting with "keymap.h", // I just copied relevant defines here. A cleaner solution would be to put gpm // code into separate file and include there linux/keyboard.h // #include <linux/keyboard.h> # define KG_SHIFT 0 # define KG_CTRL 2 # define KG_ALT 3 # define KG_ALTGR 1 # define KG_SHIFTL 4 # define KG_SHIFTR 5 # define KG_CTRLL 6 # define KG_CTRLR 7 # define KG_CAPSSHIFT 8 static void gpm_close(void); static int gpm_open(void); static int mch_gpm_process(void); #endif #ifdef FEAT_SYSMOUSE # include <sys/consio.h> # include <sys/fbio.h> static int sysmouse_open(void); static void sysmouse_close(void); static RETSIGTYPE sig_sysmouse SIGPROTOARG; #endif /* * end of autoconf section. To be extended... */ // Are the following #ifdefs still required? And why? Is that for X11? #if defined(ESIX) || defined(M_UNIX) && !defined(SCO) # ifdef SIGWINCH # undef SIGWINCH # endif # ifdef TIOCGWINSZ # undef TIOCGWINSZ # endif #endif #if defined(SIGWINDOW) && !defined(SIGWINCH) // hpux 9.01 has it # define SIGWINCH SIGWINDOW #endif #ifdef FEAT_X11 # include <X11/Xlib.h> # include <X11/Xutil.h> # include <X11/Xatom.h> # ifdef FEAT_XCLIPBOARD # include <X11/Intrinsic.h> # include <X11/Shell.h> # include <X11/StringDefs.h> static Widget xterm_Shell = (Widget)0; static void clip_update(void); static void xterm_update(void); # endif # if defined(FEAT_XCLIPBOARD) || defined(FEAT_TITLE) Window x11_window = 0; # endif Display *x11_display = NULL; #endif static int ignore_sigtstp = FALSE; #ifdef FEAT_TITLE static int get_x11_title(int); static char_u *oldtitle = NULL; static volatile sig_atomic_t oldtitle_outdated = FALSE; static int unix_did_set_title = FALSE; static char_u *oldicon = NULL; static int did_set_icon = FALSE; #endif static void may_core_dump(void); #ifdef HAVE_UNION_WAIT typedef union wait waitstatus; #else typedef int waitstatus; #endif static int WaitForChar(long msec, int *interrupted, int ignore_input); static int WaitForCharOrMouse(long msec, int *interrupted, int ignore_input); #ifdef VMS int RealWaitForChar(int, long, int *, int *interrupted); #else static int RealWaitForChar(int, long, int *, int *interrupted); #endif #ifdef FEAT_XCLIPBOARD static int do_xterm_trace(void); # define XT_TRACE_DELAY 50 // delay for xterm tracing #endif static void handle_resize(void); #if defined(SIGWINCH) static RETSIGTYPE sig_winch SIGPROTOARG; #endif #if defined(SIGINT) static RETSIGTYPE catch_sigint SIGPROTOARG; #endif #if defined(SIGUSR1) static RETSIGTYPE catch_sigusr1 SIGPROTOARG; #endif #if defined(SIGPWR) static RETSIGTYPE catch_sigpwr SIGPROTOARG; #endif #if defined(SIGALRM) && defined(FEAT_X11) \ && defined(FEAT_TITLE) && !defined(FEAT_GUI_GTK) # define SET_SIG_ALARM static RETSIGTYPE sig_alarm SIGPROTOARG; // volatile because it is used in signal handler sig_alarm(). static volatile sig_atomic_t sig_alarm_called; #endif static RETSIGTYPE deathtrap SIGPROTOARG; static void catch_int_signal(void); static void set_signals(void); static void catch_signals(RETSIGTYPE (*func_deadly)(), RETSIGTYPE (*func_other)()); #ifdef HAVE_SIGPROCMASK # define SIGSET_DECL(set) sigset_t set; # define BLOCK_SIGNALS(set) block_signals(set) # define UNBLOCK_SIGNALS(set) unblock_signals(set) #else # define SIGSET_DECL(set) # define BLOCK_SIGNALS(set) do { /**/ } while (0) # define UNBLOCK_SIGNALS(set) do { /**/ } while (0) #endif static int have_wildcard(int, char_u **); static int have_dollars(int, char_u **); static int save_patterns(int num_pat, char_u **pat, int *num_file, char_u ***file); #ifndef SIG_ERR # define SIG_ERR ((RETSIGTYPE (*)())-1) #endif // volatile because it is used in signal handler sig_winch(). static volatile sig_atomic_t do_resize = FALSE; static char_u *extra_shell_arg = NULL; static int show_shell_mess = TRUE; // volatile because it is used in signal handler deathtrap(). static volatile sig_atomic_t deadly_signal = 0; // The signal we caught // volatile because it is used in signal handler deathtrap(). static volatile sig_atomic_t in_mch_delay = FALSE; // sleeping in mch_delay() #if defined(FEAT_JOB_CHANNEL) && !defined(USE_SYSTEM) static int dont_check_job_ended = 0; #endif // Current terminal mode from mch_settmode(). Can differ from cur_tmode. static tmode_T mch_cur_tmode = TMODE_COOK; #ifdef USE_XSMP typedef struct { SmcConn smcconn; // The SM connection ID IceConn iceconn; // The ICE connection ID char *clientid; // The client ID for the current smc session Bool save_yourself; // If we're in the middle of a save_yourself Bool shutdown; // If we're in shutdown mode } xsmp_config_T; static xsmp_config_T xsmp; #endif #ifdef SYS_SIGLIST_DECLARED /* * I have seen * extern char *_sys_siglist[NSIG]; * on Irix, Linux, NetBSD and Solaris. It contains a nice list of strings * that describe the signals. That is nearly what we want here. But * autoconf does only check for sys_siglist (without the underscore), I * do not want to change everything today.... jw. * This is why AC_DECL_SYS_SIGLIST is commented out in configure.ac. */ #endif static struct signalinfo { int sig; // Signal number, eg. SIGSEGV etc char *name; // Signal name (not char_u!). char deadly; // Catch as a deadly signal? } signal_info[] = { #ifdef SIGHUP {SIGHUP, "HUP", TRUE}, #endif #ifdef SIGQUIT {SIGQUIT, "QUIT", TRUE}, #endif #ifdef SIGILL {SIGILL, "ILL", TRUE}, #endif #ifdef SIGTRAP {SIGTRAP, "TRAP", TRUE}, #endif #ifdef SIGABRT {SIGABRT, "ABRT", TRUE}, #endif #ifdef SIGEMT {SIGEMT, "EMT", TRUE}, #endif #ifdef SIGFPE {SIGFPE, "FPE", TRUE}, #endif #ifdef SIGBUS {SIGBUS, "BUS", TRUE}, #endif #if defined(SIGSEGV) && !defined(FEAT_MZSCHEME) // MzScheme uses SEGV in its garbage collector {SIGSEGV, "SEGV", TRUE}, #endif #ifdef SIGSYS {SIGSYS, "SYS", TRUE}, #endif #ifdef SIGALRM {SIGALRM, "ALRM", FALSE}, // Perl's alarm() can trigger it #endif #ifdef SIGTERM {SIGTERM, "TERM", TRUE}, #endif #if defined(SIGVTALRM) && !defined(FEAT_RUBY) {SIGVTALRM, "VTALRM", TRUE}, #endif #if defined(SIGPROF) && !defined(FEAT_MZSCHEME) && !defined(WE_ARE_PROFILING) // MzScheme uses SIGPROF for its own needs; On Linux with profiling // this makes Vim exit. WE_ARE_PROFILING is defined in Makefile. {SIGPROF, "PROF", TRUE}, #endif #ifdef SIGXCPU {SIGXCPU, "XCPU", TRUE}, #endif #ifdef SIGXFSZ {SIGXFSZ, "XFSZ", TRUE}, #endif #ifdef SIGUSR1 {SIGUSR1, "USR1", FALSE}, #endif #if defined(SIGUSR2) && !defined(FEAT_SYSMOUSE) // Used for sysmouse handling {SIGUSR2, "USR2", TRUE}, #endif #ifdef SIGINT {SIGINT, "INT", FALSE}, #endif #ifdef SIGWINCH {SIGWINCH, "WINCH", FALSE}, #endif #ifdef SIGTSTP {SIGTSTP, "TSTP", FALSE}, #endif #ifdef SIGPIPE {SIGPIPE, "PIPE", FALSE}, #endif {-1, "Unknown!", FALSE} }; int mch_chdir(char *path) { if (p_verbose >= 5) { verbose_enter(); smsg("chdir(%s)", path); verbose_leave(); } # ifdef VMS return chdir(vms_fixfilename(path)); # else return chdir(path); # endif } // Why is NeXT excluded here (and not in os_unixx.h)? #if defined(ECHOE) && defined(ICANON) \ && (defined(HAVE_TERMIO_H) || defined(HAVE_TERMIOS_H)) \ && !defined(__NeXT__) # define NEW_TTY_SYSTEM #endif /* * Write s[len] to the screen (stdout). */ void mch_write(char_u *s, int len) { vim_ignored = (int)write(1, (char *)s, len); if (p_wd) // Unix is too fast, slow down a bit more RealWaitForChar(read_cmd_fd, p_wd, NULL, NULL); } /* * Function passed to inchar_loop() to handle window resizing. * If "check_only" is TRUE: Return whether there was a resize. * If "check_only" is FALSE: Deal with the window resized. */ static int resize_func(int check_only) { if (check_only) return do_resize; while (do_resize) handle_resize(); return FALSE; } /* * mch_inchar(): low level input function. * Get a characters from the keyboard. * Return the number of characters that are available. * If wtime == 0 do not wait for characters. * If wtime == n wait a short time for characters. * If wtime == -1 wait forever for characters. */ int mch_inchar( char_u *buf, int maxlen, long wtime, // don't use "time", MIPS cannot handle it int tb_change_cnt) { return inchar_loop(buf, maxlen, wtime, tb_change_cnt, WaitForChar, resize_func); } static void handle_resize(void) { do_resize = FALSE; shell_resized(); } /* * Return non-zero if a character is available. */ int mch_char_avail(void) { return WaitForChar(0L, NULL, FALSE); } #if defined(FEAT_TERMINAL) || defined(PROTO) /* * Check for any pending input or messages. */ int mch_check_messages(void) { return WaitForChar(0L, NULL, TRUE); } #endif #if defined(HAVE_TOTAL_MEM) || defined(PROTO) # ifdef HAVE_SYS_RESOURCE_H # include <sys/resource.h> # endif # if defined(HAVE_SYS_SYSCTL_H) && defined(HAVE_SYSCTL) # include <sys/sysctl.h> # endif # if defined(HAVE_SYS_SYSINFO_H) && defined(HAVE_SYSINFO) # include <sys/sysinfo.h> # endif # ifdef MACOS_X # include <mach/mach_host.h> # include <mach/mach_port.h> # endif /* * Return total amount of memory available in Kbyte. * Doesn't change when memory has been allocated. */ long_u mch_total_mem(int special UNUSED) { long_u mem = 0; long_u shiftright = 10; // how much to shift "mem" right for Kbyte # ifdef MACOS_X { // Mac (Darwin) way of getting the amount of RAM available mach_port_t host = mach_host_self(); kern_return_t kret; # ifdef HOST_VM_INFO64 struct vm_statistics64 vm_stat; natural_t count = HOST_VM_INFO64_COUNT; kret = host_statistics64(host, HOST_VM_INFO64, (host_info64_t)&vm_stat, &count); # else struct vm_statistics vm_stat; natural_t count = HOST_VM_INFO_COUNT; kret = host_statistics(host, HOST_VM_INFO, (host_info_t)&vm_stat, &count); # endif if (kret == KERN_SUCCESS) // get the amount of user memory by summing each usage mem = (long_u)(vm_stat.free_count + vm_stat.active_count + vm_stat.inactive_count # ifdef MAC_OS_X_VERSION_10_9 + vm_stat.compressor_page_count # endif ) * sysconf(_SC_PAGESIZE); mach_port_deallocate(mach_task_self(), host); } # endif # ifdef HAVE_SYSCTL if (mem == 0) { // BSD way of getting the amount of RAM available. int mib[2]; size_t len = sizeof(long_u); # ifdef HW_USERMEM64 long_u physmem; # else // sysctl() may return 32 bit or 64 bit, accept both union { int_u u32; long_u u64; } physmem; # endif mib[0] = CTL_HW; # ifdef HW_USERMEM64 mib[1] = HW_USERMEM64; # else mib[1] = HW_USERMEM; # endif if (sysctl(mib, 2, &physmem, &len, NULL, 0) == 0) { # ifdef HW_USERMEM64 mem = (long_u)physmem; # else if (len == sizeof(physmem.u64)) mem = (long_u)physmem.u64; else mem = (long_u)physmem.u32; # endif } } # endif # if defined(HAVE_SYS_SYSINFO_H) && defined(HAVE_SYSINFO) if (mem == 0) { struct sysinfo sinfo; // Linux way of getting amount of RAM available if (sysinfo(&sinfo) == 0) { # ifdef HAVE_SYSINFO_MEM_UNIT // avoid overflow as much as possible while (shiftright > 0 && (sinfo.mem_unit & 1) == 0) { sinfo.mem_unit = sinfo.mem_unit >> 1; --shiftright; } mem = sinfo.totalram * sinfo.mem_unit; # else mem = sinfo.totalram; # endif } } # endif # ifdef HAVE_SYSCONF if (mem == 0) { long pagesize, pagecount; // Solaris way of getting amount of RAM available pagesize = sysconf(_SC_PAGESIZE); pagecount = sysconf(_SC_PHYS_PAGES); if (pagesize > 0 && pagecount > 0) { // avoid overflow as much as possible while (shiftright > 0 && (pagesize & 1) == 0) { pagesize = (long_u)pagesize >> 1; --shiftright; } mem = (long_u)pagesize * pagecount; } } # endif // Return the minimum of the physical memory and the user limit, because // using more than the user limit may cause Vim to be terminated. # if defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRLIMIT) { struct rlimit rlp; if (getrlimit(RLIMIT_DATA, &rlp) == 0 && rlp.rlim_cur < ((rlim_t)1 << (sizeof(long_u) * 8 - 1)) # ifdef RLIM_INFINITY && rlp.rlim_cur != RLIM_INFINITY # endif && ((long_u)rlp.rlim_cur >> 10) < (mem >> shiftright) ) { mem = (long_u)rlp.rlim_cur; shiftright = 10; } } # endif if (mem > 0) return mem >> shiftright; return (long_u)0x1fffff; } #endif /* * "flags": MCH_DELAY_IGNOREINPUT - don't read input * MCH_DELAY_SETTMODE - use settmode() even for short delays */ void mch_delay(long msec, int flags) { tmode_T old_tmode; int call_settmode; #ifdef FEAT_MZSCHEME long total = msec; // remember original value #endif if (flags & MCH_DELAY_IGNOREINPUT) { // Go to cooked mode without echo, to allow SIGINT interrupting us // here. But we don't want QUIT to kill us (CTRL-\ used in a // shell may produce SIGQUIT). // Only do this if sleeping for more than half a second. in_mch_delay = TRUE; call_settmode = mch_cur_tmode == TMODE_RAW && (msec > 500 || (flags & MCH_DELAY_SETTMODE)); if (call_settmode) { old_tmode = mch_cur_tmode; settmode(TMODE_SLEEP); } /* * Everybody sleeps in a different way... * Prefer nanosleep(), some versions of usleep() can only sleep up to * one second. */ #ifdef FEAT_MZSCHEME do { // if total is large enough, wait by portions in p_mzq if (total > p_mzq) msec = p_mzq; else msec = total; total -= msec; #endif #ifdef HAVE_NANOSLEEP { struct timespec ts; ts.tv_sec = msec / 1000; ts.tv_nsec = (msec % 1000) * 1000000; (void)nanosleep(&ts, NULL); } #else # ifdef HAVE_USLEEP while (msec >= 1000) { usleep((unsigned int)(999 * 1000)); msec -= 999; } usleep((unsigned int)(msec * 1000)); # else # ifndef HAVE_SELECT poll(NULL, 0, (int)msec); # else { struct timeval tv; tv.tv_sec = msec / 1000; tv.tv_usec = (msec % 1000) * 1000; // NOTE: Solaris 2.6 has a bug that makes select() hang here. Get // a patch from Sun to fix this. Reported by Gunnar Pedersen. select(0, NULL, NULL, NULL, &tv); } # endif // HAVE_SELECT # endif // HAVE_NANOSLEEP #endif // HAVE_USLEEP #ifdef FEAT_MZSCHEME } while (total > 0); #endif if (call_settmode) settmode(old_tmode); in_mch_delay = FALSE; } else WaitForChar(msec, NULL, FALSE); } #if defined(HAVE_STACK_LIMIT) \ || (!defined(HAVE_SIGALTSTACK) && defined(HAVE_SIGSTACK)) # define HAVE_CHECK_STACK_GROWTH /* * Support for checking for an almost-out-of-stack-space situation. */ /* * Return a pointer to an item on the stack. Used to find out if the stack * grows up or down. */ static int stack_grows_downwards; /* * Find out if the stack grows upwards or downwards. * "p" points to a variable on the stack of the caller. */ static void check_stack_growth(char *p) { int i; stack_grows_downwards = (p > (char *)&i); } #endif #if defined(HAVE_STACK_LIMIT) || defined(PROTO) static char *stack_limit = NULL; #if defined(_THREAD_SAFE) && defined(HAVE_PTHREAD_NP_H) # include <pthread.h> # include <pthread_np.h> #endif /* * Find out until how var the stack can grow without getting into trouble. * Called when starting up and when switching to the signal stack in * deathtrap(). */ static void get_stack_limit(void) { struct rlimit rlp; int i; long lim; // Set the stack limit to 15/16 of the allowable size. Skip this when the // limit doesn't fit in a long (rlim_cur might be "long long"). if (getrlimit(RLIMIT_STACK, &rlp) == 0 && rlp.rlim_cur < ((rlim_t)1 << (sizeof(long_u) * 8 - 1)) # ifdef RLIM_INFINITY && rlp.rlim_cur != RLIM_INFINITY # endif ) { lim = (long)rlp.rlim_cur; #if defined(_THREAD_SAFE) && defined(HAVE_PTHREAD_NP_H) { pthread_attr_t attr; size_t size; // On FreeBSD the initial thread always has a fixed stack size, no // matter what the limits are set to. Normally it's 1 Mbyte. pthread_attr_init(&attr); if (pthread_attr_get_np(pthread_self(), &attr) == 0) { pthread_attr_getstacksize(&attr, &size); if (lim > (long)size) lim = (long)size; } pthread_attr_destroy(&attr); } #endif if (stack_grows_downwards) { stack_limit = (char *)((long)&i - (lim / 16L * 15L)); if (stack_limit >= (char *)&i) // overflow, set to 1/16 of current stack position stack_limit = (char *)((long)&i / 16L); } else { stack_limit = (char *)((long)&i + (lim / 16L * 15L)); if (stack_limit <= (char *)&i) stack_limit = NULL; // overflow } } } /* * Return FAIL when running out of stack space. * "p" must point to any variable local to the caller that's on the stack. */ int mch_stackcheck(char *p) { if (stack_limit != NULL) { if (stack_grows_downwards) { if (p < stack_limit) return FAIL; } else if (p > stack_limit) return FAIL; } return OK; } #endif #if defined(HAVE_SIGALTSTACK) || defined(HAVE_SIGSTACK) /* * Support for using the signal stack. * This helps when we run out of stack space, which causes a SIGSEGV. The * signal handler then must run on another stack, since the normal stack is * completely full. */ #ifndef SIGSTKSZ # define SIGSTKSZ 8000 // just a guess of how much stack is needed... #endif # ifdef HAVE_SIGALTSTACK static stack_t sigstk; // for sigaltstack() # else static struct sigstack sigstk; // for sigstack() # endif static char *signal_stack; static void init_signal_stack(void) { if (signal_stack != NULL) { # ifdef HAVE_SIGALTSTACK # ifdef HAVE_SS_BASE sigstk.ss_base = signal_stack; # else sigstk.ss_sp = signal_stack; # endif sigstk.ss_size = SIGSTKSZ; sigstk.ss_flags = 0; (void)sigaltstack(&sigstk, NULL); # else sigstk.ss_sp = signal_stack; if (stack_grows_downwards) sigstk.ss_sp += SIGSTKSZ - 1; sigstk.ss_onstack = 0; (void)sigstack(&sigstk, NULL); # endif } } #endif /* * We need correct prototypes for a signal function, otherwise mean compilers * will barf when the second argument to signal() is ``wrong''. * Let me try it with a few tricky defines from my own osdef.h (jw). */ #if defined(SIGWINCH) static RETSIGTYPE sig_winch SIGDEFARG(sigarg) { // this is not required on all systems, but it doesn't hurt anybody signal(SIGWINCH, (RETSIGTYPE (*)())sig_winch); do_resize = TRUE; SIGRETURN; } #endif #if defined(SIGINT) static RETSIGTYPE catch_sigint SIGDEFARG(sigarg) { // this is not required on all systems, but it doesn't hurt anybody signal(SIGINT, (RETSIGTYPE (*)())catch_sigint); got_int = TRUE; SIGRETURN; } #endif #if defined(SIGUSR1) static RETSIGTYPE catch_sigusr1 SIGDEFARG(sigarg) { // this is not required on all systems, but it doesn't hurt anybody signal(SIGUSR1, (RETSIGTYPE (*)())catch_sigusr1); got_sigusr1 = TRUE; SIGRETURN; } #endif #if defined(SIGPWR) static RETSIGTYPE catch_sigpwr SIGDEFARG(sigarg) { // this is not required on all systems, but it doesn't hurt anybody signal(SIGPWR, (RETSIGTYPE (*)())catch_sigpwr); /* * I'm not sure we get the SIGPWR signal when the system is really going * down or when the batteries are almost empty. Just preserve the swap * files and don't exit, that can't do any harm. */ ml_sync_all(FALSE, FALSE); SIGRETURN; } #endif #ifdef SET_SIG_ALARM /* * signal function for alarm(). */ static RETSIGTYPE sig_alarm SIGDEFARG(sigarg) { // doesn't do anything, just to break a system call sig_alarm_called = TRUE; SIGRETURN; } #endif #if (defined(HAVE_SETJMP_H) \ && ((defined(FEAT_X11) && defined(FEAT_XCLIPBOARD)) \ || defined(FEAT_LIBCALL))) \ || defined(PROTO) # define USING_SETJMP 1 // argument to SETJMP() static JMP_BUF lc_jump_env; # ifdef SIGHASARG // Caught signal number, 0 when no signal was caught; used for mch_libcall(). // Volatile because it is used in signal handlers. static volatile sig_atomic_t lc_signal; # endif // TRUE when lc_jump_env is valid. // Volatile because it is used in signal handler deathtrap(). static volatile sig_atomic_t lc_active INIT(= FALSE); /* * A simplistic version of setjmp() that only allows one level of using. * Used to protect areas where we could crash. * Don't call twice before calling mch_endjmp()!. * * Usage: * mch_startjmp(); * if (SETJMP(lc_jump_env) != 0) * { * mch_didjmp(); * emsg("crash!"); * } * else * { * do_the_work; * mch_endjmp(); * } * Note: Can't move SETJMP() here, because a function calling setjmp() must * not return before the saved environment is used. * Returns OK for normal return, FAIL when the protected code caused a * problem and LONGJMP() was used. */ static void mch_startjmp(void) { # ifdef SIGHASARG lc_signal = 0; # endif lc_active = TRUE; } static void mch_endjmp(void) { lc_active = FALSE; } static void mch_didjmp(void) { # if defined(HAVE_SIGALTSTACK) || defined(HAVE_SIGSTACK) // On FreeBSD the signal stack has to be reset after using siglongjmp(), // otherwise catching the signal only works once. init_signal_stack(); # endif } #endif /* * This function handles deadly signals. * It tries to preserve any swap files and exit properly. * (partly from Elvis). * NOTE: Avoid unsafe functions, such as allocating memory, they can result in * a deadlock. */ static RETSIGTYPE deathtrap SIGDEFARG(sigarg) { static int entered = 0; // count the number of times we got here. // Note: when memory has been corrupted // this may get an arbitrary value! #ifdef SIGHASARG int i; #endif #if defined(USING_SETJMP) /* * Catch a crash in protected code. * Restores the environment saved in lc_jump_env, which looks like * SETJMP() returns 1. */ if (lc_active) { # if defined(SIGHASARG) lc_signal = sigarg; # endif lc_active = FALSE; // don't jump again LONGJMP(lc_jump_env, 1); // NOTREACHED } #endif #ifdef SIGHASARG # ifdef SIGQUIT // While in mch_delay() we go to cooked mode to allow a CTRL-C to // interrupt us. But in cooked mode we may also get SIGQUIT, e.g., when // pressing CTRL-\, but we don't want Vim to exit then. if (in_mch_delay && sigarg == SIGQUIT) SIGRETURN; # endif // When SIGHUP, SIGQUIT, etc. are blocked: postpone the effect and return // here. This avoids that a non-reentrant function is interrupted, e.g., // free(). Calling free() again may then cause a crash. if (entered == 0 && (0 # ifdef SIGHUP || sigarg == SIGHUP # endif # ifdef SIGQUIT || sigarg == SIGQUIT # endif # ifdef SIGTERM || sigarg == SIGTERM # endif # ifdef SIGPWR || sigarg == SIGPWR # endif # ifdef SIGUSR1 || sigarg == SIGUSR1 # endif # ifdef SIGUSR2 || sigarg == SIGUSR2 # endif ) && !vim_handle_signal(sigarg)) SIGRETURN; #endif // Remember how often we have been called. ++entered; // Executing autocommands is likely to use more stack space than we have // available in the signal stack. block_autocmds(); #ifdef FEAT_EVAL // Set the v:dying variable. set_vim_var_nr(VV_DYING, (long)entered); #endif v_dying = entered; #ifdef HAVE_STACK_LIMIT // Since we are now using the signal stack, need to reset the stack // limit. Otherwise using a regexp will fail. get_stack_limit(); #endif #if 0 // This is for opening gdb the moment Vim crashes. // You need to manually adjust the file name and Vim executable name. // Suggested by SungHyun Nam. { # define VI_GDB_FILE "/tmp/vimgdb" # define VIM_NAME "/usr/bin/vim" FILE *fp = fopen(VI_GDB_FILE, "w"); if (fp) { fprintf(fp, "file %s\n" "attach %d\n" "set height 1000\n" "bt full\n" , VIM_NAME, getpid()); fclose(fp); system("xterm -e gdb -x "VI_GDB_FILE); unlink(VI_GDB_FILE); } } #endif #ifdef SIGHASARG // try to find the name of this signal for (i = 0; signal_info[i].sig != -1; i++) if (sigarg == signal_info[i].sig) break; deadly_signal = sigarg; #endif full_screen = FALSE; // don't write message to the GUI, it might be // part of the problem... /* * If something goes wrong after entering here, we may get here again. * When this happens, give a message and try to exit nicely (resetting the * terminal mode, etc.) * When this happens twice, just exit, don't even try to give a message, * stack may be corrupt or something weird. * When this still happens again (or memory was corrupted in such a way * that "entered" was clobbered) use _exit(), don't try freeing resources. */ if (entered >= 3) { reset_signals(); // don't catch any signals anymore may_core_dump(); if (entered >= 4) _exit(8); exit(7); } if (entered == 2) { // No translation, it may call malloc(). OUT_STR("Vim: Double signal, exiting\n"); out_flush(); getout(1); } // No translation, it may call malloc(). #ifdef SIGHASARG sprintf((char *)IObuff, "Vim: Caught deadly signal %s\r\n", signal_info[i].name); #else sprintf((char *)IObuff, "Vim: Caught deadly signal\r\n"); #endif // Preserve files and exit. This sets the really_exiting flag to prevent // calling free(). preserve_exit(); // NOTREACHED #ifdef NBDEBUG reset_signals(); may_core_dump(); abort(); #endif SIGRETURN; } /* * Invoked after receiving SIGCONT. We don't know what happened while * sleeping, deal with part of that. */ static void after_sigcont(void) { # ifdef FEAT_TITLE // Don't change "oldtitle" in a signal handler, set a flag to obtain it // again later. oldtitle_outdated = TRUE; # endif settmode(TMODE_RAW); need_check_timestamps = TRUE; did_check_timestamps = FALSE; } #if defined(SIGCONT) static RETSIGTYPE sigcont_handler SIGPROTOARG; static volatile sig_atomic_t in_mch_suspend = FALSE; /* * With multi-threading, suspending might not work immediately. Catch the * SIGCONT signal, which will be used as an indication whether the suspending * has been done or not. * * On Linux, signal is not always handled immediately either. * See https://bugs.launchpad.net/bugs/291373 * Probably because the signal is handled in another thread. * * volatile because it is used in signal handler sigcont_handler(). */ static volatile sig_atomic_t sigcont_received; static RETSIGTYPE sigcont_handler SIGPROTOARG; /* * signal handler for SIGCONT */ static RETSIGTYPE sigcont_handler SIGDEFARG(sigarg) { if (in_mch_suspend) { sigcont_received = TRUE; } else { // We didn't suspend ourselves, assume we were stopped by a SIGSTOP // signal (which can't be intercepted) and get a SIGCONT. Need to get // back to a sane mode. We should redraw, but we can't really do that // in a signal handler, do a redraw later. after_sigcont(); redraw_later(CLEAR); cursor_on_force(); out_flush(); } SIGRETURN; } #endif #if defined(FEAT_CLIPBOARD) && defined(FEAT_X11) # ifdef USE_SYSTEM static void *clip_star_save = NULL; static void *clip_plus_save = NULL; # endif /* * Called when Vim is going to sleep or execute a shell command. * We can't respond to requests for the X selections. Lose them, otherwise * other applications will hang. But first copy the text to cut buffer 0. */ static void loose_clipboard(void) { if (clip_star.owned || clip_plus.owned) { x11_export_final_selection(); if (clip_star.owned) clip_lose_selection(&clip_star); if (clip_plus.owned) clip_lose_selection(&clip_plus); if (x11_display != NULL) XFlush(x11_display); } } # ifdef USE_SYSTEM /* * Save clipboard text to restore later. */ static void save_clipboard(void) { if (clip_star.owned) clip_star_save = get_register('*', TRUE); if (clip_plus.owned) clip_plus_save = get_register('+', TRUE); } /* * Restore clipboard text if no one own the X selection. */ static void restore_clipboard(void) { if (clip_star_save != NULL) { if (!clip_gen_owner_exists(&clip_star)) put_register('*', clip_star_save); else free_register(clip_star_save); clip_star_save = NULL; } if (clip_plus_save != NULL) { if (!clip_gen_owner_exists(&clip_plus)) put_register('+', clip_plus_save); else free_register(clip_plus_save); clip_plus_save = NULL; } } # endif #endif /* * If the machine has job control, use it to suspend the program, * otherwise fake it by starting a new shell. */ void mch_suspend(void) { if (ignore_sigtstp) return; #if defined(SIGTSTP) in_mch_suspend = TRUE; out_flush(); // needed to make cursor visible on some systems settmode(TMODE_COOK); out_flush(); // needed to disable mouse on some systems # if defined(FEAT_CLIPBOARD) && defined(FEAT_X11) loose_clipboard(); # endif # if defined(SIGCONT) sigcont_received = FALSE; # endif kill(0, SIGTSTP); // send ourselves a STOP signal # if defined(SIGCONT) /* * Wait for the SIGCONT signal to be handled. It generally happens * immediately, but somehow not all the time, probably because it's handled * in another thread. Do not call pause() because there would be race * condition which would hang Vim if signal happened in between the test of * sigcont_received and the call to pause(). If signal is not yet received, * sleep 0, 1, 2, 3 ms. Don't bother waiting further if signal is not * received after 1+2+3 ms (not expected to happen). */ { long wait_time; for (wait_time = 0; !sigcont_received && wait_time <= 3L; wait_time++) mch_delay(wait_time, 0); } # endif in_mch_suspend = FALSE; after_sigcont(); #else suspend_shell(); #endif } void mch_init(void) { Columns = 80; Rows = 24; out_flush(); #ifdef SIGTSTP // Check whether we were invoked with SIGTSTP set to be ignored. If it is // that indicates the shell (or program) that launched us does not support // tty job control and thus we should ignore that signal. If invoked as a // restricted editor (e.g., as "rvim") SIGTSTP is always ignored. ignore_sigtstp = restricted || SIG_IGN == signal(SIGTSTP, SIG_ERR); #endif set_signals(); #ifdef MACOS_CONVERT mac_conv_init(); #endif #ifdef FEAT_CYGWIN_WIN32_CLIPBOARD win_clip_init(); #endif } static void set_signals(void) { #if defined(SIGWINCH) /* * WINDOW CHANGE signal is handled with sig_winch(). */ signal(SIGWINCH, (RETSIGTYPE (*)())sig_winch); #endif #ifdef SIGTSTP // See mch_init() for the conditions under which we ignore SIGTSTP. signal(SIGTSTP, ignore_sigtstp ? SIG_IGN : SIG_DFL); #endif #if defined(SIGCONT) signal(SIGCONT, sigcont_handler); #endif #ifdef SIGPIPE /* * We want to ignore breaking of PIPEs. */ signal(SIGPIPE, SIG_IGN); #endif #ifdef SIGINT catch_int_signal(); #endif #ifdef SIGUSR1 /* * Call user's handler on SIGUSR1 */ signal(SIGUSR1, (RETSIGTYPE (*)())catch_sigusr1); #endif /* * Ignore alarm signals (Perl's alarm() generates it). */ #ifdef SIGALRM signal(SIGALRM, SIG_IGN); #endif #ifdef SIGPWR /* * Catch SIGPWR (power failure?) to preserve the swap files, so that no * work will be lost. */ signal(SIGPWR, (RETSIGTYPE (*)())catch_sigpwr); #endif /* * Arrange for other signals to gracefully shutdown Vim. */ catch_signals(deathtrap, SIG_ERR); #if defined(FEAT_GUI) && defined(SIGHUP) /* * When the GUI is running, ignore the hangup signal. */ if (gui.in_use) signal(SIGHUP, SIG_IGN); #endif } #if defined(SIGINT) || defined(PROTO) /* * Catch CTRL-C (only works while in Cooked mode). */ static void catch_int_signal(void) { signal(SIGINT, (RETSIGTYPE (*)())catch_sigint); } #endif void reset_signals(void) { catch_signals(SIG_DFL, SIG_DFL); #if defined(SIGCONT) // SIGCONT isn't in the list, because its default action is ignore signal(SIGCONT, SIG_DFL); #endif } static void catch_signals( RETSIGTYPE (*func_deadly)(), RETSIGTYPE (*func_other)()) { int i; for (i = 0; signal_info[i].sig != -1; i++) { if (signal_info[i].deadly) { #if defined(HAVE_SIGALTSTACK) && defined(HAVE_SIGACTION) struct sigaction sa; // Setup to use the alternate stack for the signal function. sa.sa_handler = func_deadly; sigemptyset(&sa.sa_mask); # if defined(__linux__) && defined(_REENTRANT) // On Linux, with glibc compiled for kernel 2.2, there is a bug in // thread handling in combination with using the alternate stack: // pthread library functions try to use the stack pointer to // identify the current thread, causing a SEGV signal, which // recursively calls deathtrap() and hangs. sa.sa_flags = 0; # else sa.sa_flags = SA_ONSTACK; # endif sigaction(signal_info[i].sig, &sa, NULL); #else # if defined(HAVE_SIGALTSTACK) && defined(HAVE_SIGVEC) struct sigvec sv; // Setup to use the alternate stack for the signal function. sv.sv_handler = func_deadly; sv.sv_mask = 0; sv.sv_flags = SV_ONSTACK; sigvec(signal_info[i].sig, &sv, NULL); # else signal(signal_info[i].sig, func_deadly); # endif #endif } else if (func_other != SIG_ERR) { // Deal with non-deadly signals. #ifdef SIGTSTP signal(signal_info[i].sig, signal_info[i].sig == SIGTSTP && ignore_sigtstp ? SIG_IGN : func_other); #else signal(signal_info[i].sig, func_other); #endif } } } #ifdef HAVE_SIGPROCMASK static void block_signals(sigset_t *set) { sigset_t newset; int i; sigemptyset(&newset); for (i = 0; signal_info[i].sig != -1; i++) sigaddset(&newset, signal_info[i].sig); # if defined(SIGCONT) // SIGCONT isn't in the list, because its default action is ignore sigaddset(&newset, SIGCONT); # endif sigprocmask(SIG_BLOCK, &newset, set); } static void unblock_signals(sigset_t *set) { sigprocmask(SIG_SETMASK, set, NULL); } #endif /* * Handling of SIGHUP, SIGQUIT and SIGTERM: * "when" == a signal: when busy, postpone and return FALSE, otherwise * return TRUE * "when" == SIGNAL_BLOCK: Going to be busy, block signals * "when" == SIGNAL_UNBLOCK: Going to wait, unblock signals, use postponed * signal * Returns TRUE when Vim should exit. */ int vim_handle_signal(int sig) { static int got_signal = 0; static int blocked = TRUE; switch (sig) { case SIGNAL_BLOCK: blocked = TRUE; break; case SIGNAL_UNBLOCK: blocked = FALSE; if (got_signal != 0) { kill(getpid(), got_signal); got_signal = 0; } break; default: if (!blocked) return TRUE; // exit! got_signal = sig; #ifdef SIGPWR if (sig != SIGPWR) #endif got_int = TRUE; // break any loops break; } return FALSE; } /* * Check_win checks whether we have an interactive stdout. */ int mch_check_win(int argc UNUSED, char **argv UNUSED) { if (isatty(1)) return OK; return FAIL; } /* * Return TRUE if the input comes from a terminal, FALSE otherwise. */ int mch_input_isatty(void) { if (isatty(read_cmd_fd)) return TRUE; return FALSE; } #ifdef FEAT_X11 # if defined(ELAPSED_TIMEVAL) \ && (defined(FEAT_XCLIPBOARD) || defined(FEAT_TITLE)) /* * Give a message about the elapsed time for opening the X window. */ static void xopen_message(long elapsed_msec) { smsg(_("Opening the X display took %ld msec"), elapsed_msec); } # endif #endif #if defined(FEAT_X11) && (defined(FEAT_TITLE) || defined(FEAT_XCLIPBOARD)) /* * A few functions shared by X11 title and clipboard code. */ static int got_x_error = FALSE; /* * X Error handler, otherwise X just exits! (very rude) -- webb */ static int x_error_handler(Display *dpy, XErrorEvent *error_event) { XGetErrorText(dpy, error_event->error_code, (char *)IObuff, IOSIZE); STRCAT(IObuff, _("\nVim: Got X error\n")); // In the GUI we cannot print a message and continue, because no X calls // are allowed here (causes my system to hang). Silently continuing seems // like the best alternative. Do preserve files, in case we crash. ml_sync_all(FALSE, FALSE); #ifdef FEAT_GUI if (!gui.in_use) #endif msg((char *)IObuff); return 0; // NOTREACHED } /* * Another X Error handler, just used to check for errors. */ static int x_error_check(Display *dpy UNUSED, XErrorEvent *error_event UNUSED) { got_x_error = TRUE; return 0; } /* * Return TRUE when connection to the X server is desired. */ static int x_connect_to_server(void) { // No point in connecting if we are exiting or dying. if (exiting || v_dying) return FALSE; #if defined(FEAT_CLIENTSERVER) if (x_force_connect) return TRUE; #endif if (x_no_connect) return FALSE; // Check for a match with "exclude:" from 'clipboard'. if (clip_exclude_prog != NULL) { // Just in case we get called recursively, return FALSE. This could // happen if vpeekc() is used while executing the prog and it causes a // related callback to be invoked. if (regprog_in_use(clip_exclude_prog)) return FALSE; if (vim_regexec_prog(&clip_exclude_prog, FALSE, T_NAME, (colnr_T)0)) return FALSE; } return TRUE; } #if defined(FEAT_X11) && defined(FEAT_XCLIPBOARD) # if defined(USING_SETJMP) /* * An X IO Error handler, used to catch error while opening the display. */ static int x_IOerror_check(Display *dpy UNUSED) { // This function should not return, it causes exit(). Longjump instead. LONGJMP(lc_jump_env, 1); # if defined(VMS) || defined(__CYGWIN__) return 0; // avoid the compiler complains about missing return value # endif } # endif /* * An X IO Error handler, used to catch terminal errors. */ static int xterm_dpy_retry_count = 0; static int x_IOerror_handler(Display *dpy UNUSED) { xterm_dpy = NULL; xterm_dpy_retry_count = 5; // Try reconnecting five times x11_window = 0; x11_display = NULL; xterm_Shell = (Widget)0; // This function should not return, it causes exit(). Longjump instead. LONGJMP(x_jump_env, 1); # if defined(VMS) || defined(__CYGWIN__) return 0; // avoid the compiler complains about missing return value # endif } /* * If the X11 connection was lost try to restore it. * Helps when the X11 server was stopped and restarted while Vim was inactive * (e.g. through tmux). */ static void may_restore_clipboard(void) { // No point in restoring the connecting if we are exiting or dying. if (!exiting && !v_dying && xterm_dpy_retry_count > 0) { --xterm_dpy_retry_count; # ifndef LESSTIF_VERSION // This has been reported to avoid Vim getting stuck. if (app_context != (XtAppContext)NULL) { XtDestroyApplicationContext(app_context); app_context = (XtAppContext)NULL; x11_display = NULL; // freed by XtDestroyApplicationContext() } # endif setup_term_clip(); get_x11_title(FALSE); } } void ex_xrestore(exarg_T *eap) { if (eap->arg != NULL && STRLEN(eap->arg) > 0) { if (xterm_display_allocated) vim_free(xterm_display); xterm_display = (char *)vim_strsave(eap->arg); xterm_display_allocated = TRUE; } smsg(_("restoring display %s"), xterm_display == NULL ? (char *)mch_getenv((char_u *)"DISPLAY") : xterm_display); clear_xterm_clip(); x11_window = 0; xterm_dpy_retry_count = 5; // Try reconnecting five times may_restore_clipboard(); } #endif /* * Test if "dpy" and x11_window are valid by getting the window title. * I don't actually want it yet, so there may be a simpler call to use, but * this will cause the error handler x_error_check() to be called if anything * is wrong, such as the window pointer being invalid (as can happen when the * user changes his DISPLAY, but not his WINDOWID) -- webb */ static int test_x11_window(Display *dpy) { int (*old_handler)(); XTextProperty text_prop; old_handler = XSetErrorHandler(x_error_check); got_x_error = FALSE; if (XGetWMName(dpy, x11_window, &text_prop)) XFree((void *)text_prop.value); XSync(dpy, False); (void)XSetErrorHandler(old_handler); if (p_verbose > 0 && got_x_error) verb_msg(_("Testing the X display failed")); return (got_x_error ? FAIL : OK); } #endif #ifdef FEAT_TITLE #ifdef FEAT_X11 static int get_x11_thing(int get_title, int test_only); /* * try to get x11 window and display * * return FAIL for failure, OK otherwise */ static int get_x11_windis(void) { char *winid; static int result = -1; #define XD_NONE 0 // x11_display not set here #define XD_HERE 1 // x11_display opened here #define XD_GUI 2 // x11_display used from gui.dpy #define XD_XTERM 3 // x11_display used from xterm_dpy static int x11_display_from = XD_NONE; static int did_set_error_handler = FALSE; if (!did_set_error_handler) { // X just exits if it finds an error otherwise! (void)XSetErrorHandler(x_error_handler); did_set_error_handler = TRUE; } #if defined(FEAT_GUI_X11) || defined(FEAT_GUI_GTK) if (gui.in_use) { /* * If the X11 display was opened here before, for the window where Vim * was started, close that one now to avoid a memory leak. */ if (x11_display_from == XD_HERE && x11_display != NULL) { XCloseDisplay(x11_display); x11_display_from = XD_NONE; } if (gui_get_x11_windis(&x11_window, &x11_display) == OK) { x11_display_from = XD_GUI; return OK; } x11_display = NULL; return FAIL; } else if (x11_display_from == XD_GUI) { // GUI must have stopped somehow, clear x11_display x11_window = 0; x11_display = NULL; x11_display_from = XD_NONE; } #endif // When started with the "-X" argument, don't try connecting. if (!x_connect_to_server()) return FAIL; /* * If WINDOWID not set, should try another method to find out * what the current window number is. The only code I know for * this is very complicated. * We assume that zero is invalid for WINDOWID. */ if (x11_window == 0 && (winid = getenv("WINDOWID")) != NULL) x11_window = (Window)atol(winid); #ifdef FEAT_XCLIPBOARD if (xterm_dpy == x11_display) // x11_display may have been set to xterm_dpy elsewhere x11_display_from = XD_XTERM; if (xterm_dpy != NULL && x11_window != 0) { // We may have checked it already, but Gnome terminal can move us to // another window, so we need to check every time. if (x11_display_from != XD_XTERM) { /* * If the X11 display was opened here before, for the window where * Vim was started, close that one now to avoid a memory leak. */ if (x11_display_from == XD_HERE && x11_display != NULL) XCloseDisplay(x11_display); x11_display = xterm_dpy; x11_display_from = XD_XTERM; } if (test_x11_window(x11_display) == FAIL) { // probably bad $WINDOWID x11_window = 0; x11_display = NULL; x11_display_from = XD_NONE; return FAIL; } return OK; } #endif if (x11_window == 0 || x11_display == NULL) result = -1; if (result != -1) // Have already been here and set this return result; // Don't do all these X calls again if (x11_window != 0 && x11_display == NULL) { #ifdef SET_SIG_ALARM RETSIGTYPE (*sig_save)(); #endif #ifdef ELAPSED_FUNC elapsed_T start_tv; if (p_verbose > 0) ELAPSED_INIT(start_tv); #endif #ifdef SET_SIG_ALARM /* * Opening the Display may hang if the DISPLAY setting is wrong, or * the network connection is bad. Set an alarm timer to get out. */ sig_alarm_called = FALSE; sig_save = (RETSIGTYPE (*)())signal(SIGALRM, (RETSIGTYPE (*)())sig_alarm); alarm(2); #endif x11_display = XOpenDisplay(NULL); #ifdef SET_SIG_ALARM alarm(0); signal(SIGALRM, (RETSIGTYPE (*)())sig_save); if (p_verbose > 0 && sig_alarm_called) verb_msg(_("Opening the X display timed out")); #endif if (x11_display != NULL) { # ifdef ELAPSED_FUNC if (p_verbose > 0) { verbose_enter(); xopen_message(ELAPSED_FUNC(start_tv)); verbose_leave(); } # endif if (test_x11_window(x11_display) == FAIL) { // Maybe window id is bad x11_window = 0; XCloseDisplay(x11_display); x11_display = NULL; } else x11_display_from = XD_HERE; } } if (x11_window == 0 || x11_display == NULL) return (result = FAIL); # ifdef FEAT_EVAL set_vim_var_nr(VV_WINDOWID, (long)x11_window); # endif return (result = OK); } /* * Determine original x11 Window Title */ static int get_x11_title(int test_only) { return get_x11_thing(TRUE, test_only); } /* * Determine original x11 Window icon */ static int get_x11_icon(int test_only) { int retval = FALSE; retval = get_x11_thing(FALSE, test_only); // could not get old icon, use terminal name if (oldicon == NULL && !test_only) { if (STRNCMP(T_NAME, "builtin_", 8) == 0) oldicon = vim_strsave(T_NAME + 8); else oldicon = vim_strsave(T_NAME); } return retval; } static int get_x11_thing( int get_title, // get title string int test_only) { XTextProperty text_prop; int retval = FALSE; Status status; if (get_x11_windis() == OK) { // Get window/icon name if any if (get_title) status = XGetWMName(x11_display, x11_window, &text_prop); else status = XGetWMIconName(x11_display, x11_window, &text_prop); /* * If terminal is xterm, then x11_window may be a child window of the * outer xterm window that actually contains the window/icon name, so * keep traversing up the tree until a window with a title/icon is * found. */ // Previously this was only done for xterm and alike. I don't see a // reason why it would fail for other terminal emulators. // if (term_is_xterm) { Window root; Window parent; Window win = x11_window; Window *children; unsigned int num_children; while (!status || text_prop.value == NULL) { if (!XQueryTree(x11_display, win, &root, &parent, &children, &num_children)) break; if (children) XFree((void *)children); if (parent == root || parent == 0) break; win = parent; if (get_title) status = XGetWMName(x11_display, win, &text_prop); else status = XGetWMIconName(x11_display, win, &text_prop); } } if (status && text_prop.value != NULL) { retval = TRUE; if (!test_only) { if (get_title) vim_free(oldtitle); else vim_free(oldicon); if (text_prop.encoding == XA_STRING && !has_mbyte) { if (get_title) oldtitle = vim_strsave((char_u *)text_prop.value); else oldicon = vim_strsave((char_u *)text_prop.value); } else { char **cl; Status transform_status; int n = 0; transform_status = XmbTextPropertyToTextList(x11_display, &text_prop, &cl, &n); if (transform_status >= Success && n > 0 && cl[0]) { if (get_title) oldtitle = vim_strsave((char_u *) cl[0]); else oldicon = vim_strsave((char_u *) cl[0]); XFreeStringList(cl); } else { if (get_title) oldtitle = vim_strsave((char_u *)text_prop.value); else oldicon = vim_strsave((char_u *)text_prop.value); } } } XFree((void *)text_prop.value); } } return retval; } // Xutf8 functions are not available on older systems. Note that on some // systems X_HAVE_UTF8_STRING may be defined in a header file but // Xutf8SetWMProperties() is not in the X11 library. Configure checks for // that and defines HAVE_XUTF8SETWMPROPERTIES. #if defined(X_HAVE_UTF8_STRING) # if X_HAVE_UTF8_STRING && HAVE_XUTF8SETWMPROPERTIES # define USE_UTF8_STRING # endif #endif /* * Set x11 Window Title * * get_x11_windis() must be called before this and have returned OK */ static void set_x11_title(char_u *title) { // XmbSetWMProperties() and Xutf8SetWMProperties() should use a STRING // when possible, COMPOUND_TEXT otherwise. COMPOUND_TEXT isn't // supported everywhere and STRING doesn't work for multi-byte titles. #ifdef USE_UTF8_STRING if (enc_utf8) Xutf8SetWMProperties(x11_display, x11_window, (const char *)title, NULL, NULL, 0, NULL, NULL, NULL); else #endif { #if XtSpecificationRelease >= 4 # ifdef FEAT_XFONTSET XmbSetWMProperties(x11_display, x11_window, (const char *)title, NULL, NULL, 0, NULL, NULL, NULL); # else XTextProperty text_prop; char *c_title = (char *)title; // directly from example 3-18 "basicwin" of Xlib Programming Manual (void)XStringListToTextProperty(&c_title, 1, &text_prop); XSetWMProperties(x11_display, x11_window, &text_prop, NULL, NULL, 0, NULL, NULL, NULL); # endif #else XStoreName(x11_display, x11_window, (char *)title); #endif } XFlush(x11_display); } /* * Set x11 Window icon * * get_x11_windis() must be called before this and have returned OK */ static void set_x11_icon(char_u *icon) { // See above for comments about using X*SetWMProperties(). #ifdef USE_UTF8_STRING if (enc_utf8) Xutf8SetWMProperties(x11_display, x11_window, NULL, (const char *)icon, NULL, 0, NULL, NULL, NULL); else #endif { #if XtSpecificationRelease >= 4 # ifdef FEAT_XFONTSET XmbSetWMProperties(x11_display, x11_window, NULL, (const char *)icon, NULL, 0, NULL, NULL, NULL); # else XTextProperty text_prop; char *c_icon = (char *)icon; (void)XStringListToTextProperty(&c_icon, 1, &text_prop); XSetWMProperties(x11_display, x11_window, NULL, &text_prop, NULL, 0, NULL, NULL, NULL); # endif #else XSetIconName(x11_display, x11_window, (char *)icon); #endif } XFlush(x11_display); } #else // FEAT_X11 static int get_x11_title(int test_only UNUSED) { return FALSE; } static int get_x11_icon(int test_only) { if (!test_only) { if (STRNCMP(T_NAME, "builtin_", 8) == 0) oldicon = vim_strsave(T_NAME + 8); else oldicon = vim_strsave(T_NAME); } return FALSE; } #endif // FEAT_X11 int mch_can_restore_title(void) { return get_x11_title(TRUE); } int mch_can_restore_icon(void) { return get_x11_icon(TRUE); } /* * Set the window title and icon. */ void mch_settitle(char_u *title, char_u *icon) { int type = 0; static int recursive = 0; if (T_NAME == NULL) // no terminal name (yet) return; if (title == NULL && icon == NULL) // nothing to do return; // When one of the X11 functions causes a deadly signal, we get here again // recursively. Avoid hanging then (something is probably locked). if (recursive) return; ++recursive; /* * if the window ID and the display is known, we may use X11 calls */ #ifdef FEAT_X11 if (get_x11_windis() == OK) type = 1; #else # if defined(FEAT_GUI_PHOTON) \ || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_HAIKU) if (gui.in_use) type = 1; # endif #endif /* * Note: if "t_ts" is set, title is set with escape sequence rather * than x11 calls, because the x11 calls don't always work */ if ((type || *T_TS != NUL) && title != NULL) { if (oldtitle_outdated) { oldtitle_outdated = FALSE; VIM_CLEAR(oldtitle); } if (oldtitle == NULL #ifdef FEAT_GUI && !gui.in_use #endif ) // first call but not in GUI, save title (void)get_x11_title(FALSE); if (*T_TS != NUL) // it's OK if t_fs is empty term_settitle(title); #ifdef FEAT_X11 else # ifdef FEAT_GUI_GTK if (!gui.in_use) // don't do this if GTK+ is running # endif set_x11_title(title); // x11 #endif #if defined(FEAT_GUI_GTK) || defined(FEAT_GUI_HAIKU) \ || defined(FEAT_GUI_PHOTON) else gui_mch_settitle(title, icon); #endif unix_did_set_title = TRUE; } if ((type || *T_CIS != NUL) && icon != NULL) { if (oldicon == NULL #ifdef FEAT_GUI && !gui.in_use #endif ) // first call, save icon get_x11_icon(FALSE); if (*T_CIS != NUL) { out_str(T_CIS); // set icon start out_str_nf(icon); out_str(T_CIE); // set icon end out_flush(); } #ifdef FEAT_X11 else # ifdef FEAT_GUI_GTK if (!gui.in_use) // don't do this if GTK+ is running # endif set_x11_icon(icon); // x11 #endif did_set_icon = TRUE; } --recursive; } /* * Restore the window/icon title. * "which" is one of: * SAVE_RESTORE_TITLE only restore title * SAVE_RESTORE_ICON only restore icon * SAVE_RESTORE_BOTH restore title and icon */ void mch_restore_title(int which) { int do_push_pop = unix_did_set_title || did_set_icon; // only restore the title or icon when it has been set mch_settitle(((which & SAVE_RESTORE_TITLE) && unix_did_set_title) ? (oldtitle ? oldtitle : p_titleold) : NULL, ((which & SAVE_RESTORE_ICON) && did_set_icon) ? oldicon : NULL); if (do_push_pop) { // pop and push from/to the stack term_pop_title(which); term_push_title(which); } } #endif // FEAT_TITLE /* * Return TRUE if "name" looks like some xterm name. * Seiichi Sato mentioned that "mlterm" works like xterm. */ int vim_is_xterm(char_u *name) { if (name == NULL) return FALSE; return (STRNICMP(name, "xterm", 5) == 0 || STRNICMP(name, "nxterm", 6) == 0 || STRNICMP(name, "kterm", 5) == 0 || STRNICMP(name, "mlterm", 6) == 0 || STRNICMP(name, "rxvt", 4) == 0 || STRNICMP(name, "screen.xterm", 12) == 0 || STRCMP(name, "builtin_xterm") == 0); } #if defined(FEAT_MOUSE_XTERM) || defined(PROTO) /* * Return TRUE if "name" appears to be that of a terminal * known to support the xterm-style mouse protocol. * Relies on term_is_xterm having been set to its correct value. */ int use_xterm_like_mouse(char_u *name) { return (name != NULL && (term_is_xterm || STRNICMP(name, "screen", 6) == 0 || STRNICMP(name, "tmux", 4) == 0 || STRICMP(name, "st") == 0 || STRNICMP(name, "st-", 3) == 0 || STRNICMP(name, "stterm", 6) == 0)); } #endif /* * Return non-zero when using an xterm mouse, according to 'ttymouse'. * Return 1 for "xterm". * Return 2 for "xterm2". * Return 3 for "urxvt". * Return 4 for "sgr". */ int use_xterm_mouse(void) { if (ttym_flags == TTYM_SGR) return 4; if (ttym_flags == TTYM_URXVT) return 3; if (ttym_flags == TTYM_XTERM2) return 2; if (ttym_flags == TTYM_XTERM) return 1; return 0; } int vim_is_iris(char_u *name) { if (name == NULL) return FALSE; return (STRNICMP(name, "iris-ansi", 9) == 0 || STRCMP(name, "builtin_iris-ansi") == 0); } int vim_is_vt300(char_u *name) { if (name == NULL) return FALSE; // actually all ANSI comp. terminals should be here // catch VT100 - VT5xx return ((STRNICMP(name, "vt", 2) == 0 && vim_strchr((char_u *)"12345", name[2]) != NULL) || STRCMP(name, "builtin_vt320") == 0); } /* * Return TRUE if "name" is a terminal for which 'ttyfast' should be set. * This should include all windowed terminal emulators. */ int vim_is_fastterm(char_u *name) { if (name == NULL) return FALSE; if (vim_is_xterm(name) || vim_is_vt300(name) || vim_is_iris(name)) return TRUE; return ( STRNICMP(name, "hpterm", 6) == 0 || STRNICMP(name, "sun-cmd", 7) == 0 || STRNICMP(name, "screen", 6) == 0 || STRNICMP(name, "tmux", 4) == 0 || STRNICMP(name, "dtterm", 6) == 0); } /* * Insert user name in s[len]. * Return OK if a name found. */ int mch_get_user_name(char_u *s, int len) { #ifdef VMS vim_strncpy(s, (char_u *)cuserid(NULL), len - 1); return OK; #else return mch_get_uname(getuid(), s, len); #endif } /* * Insert user name for "uid" in s[len]. * Return OK if a name found. */ int mch_get_uname(uid_t uid, char_u *s, int len) { #if defined(HAVE_PWD_H) && defined(HAVE_GETPWUID) struct passwd *pw; if ((pw = getpwuid(uid)) != NULL && pw->pw_name != NULL && *(pw->pw_name) != NUL) { vim_strncpy(s, (char_u *)pw->pw_name, len - 1); return OK; } #endif sprintf((char *)s, "%d", (int)uid); // assumes s is long enough return FAIL; // a number is not a name } /* * Insert host name is s[len]. */ #ifdef HAVE_SYS_UTSNAME_H void mch_get_host_name(char_u *s, int len) { struct utsname vutsname; if (uname(&vutsname) < 0) *s = NUL; else vim_strncpy(s, (char_u *)vutsname.nodename, len - 1); } #else // HAVE_SYS_UTSNAME_H # ifdef HAVE_SYS_SYSTEMINFO_H # define gethostname(nam, len) sysinfo(SI_HOSTNAME, nam, len) # endif void mch_get_host_name(char_u *s, int len) { # ifdef VAXC vaxc$gethostname((char *)s, len); # else gethostname((char *)s, len); # endif s[len - 1] = NUL; // make sure it's terminated } #endif // HAVE_SYS_UTSNAME_H /* * return process ID */ long mch_get_pid(void) { return (long)getpid(); } /* * return TRUE if process "pid" is still running */ int mch_process_running(long pid) { // EMX kill() not working correctly, it seems return kill(pid, 0) == 0; } #if !defined(HAVE_STRERROR) && defined(USE_GETCWD) static char * strerror(int err) { extern int sys_nerr; extern char *sys_errlist[]; static char er[20]; if (err > 0 && err < sys_nerr) return (sys_errlist[err]); sprintf(er, "Error %d", err); return er; } #endif /* * Get name of current directory into buffer "buf" of length "len" bytes. * "len" must be at least PATH_MAX. * Return OK for success, FAIL for failure. */ int mch_dirname(char_u *buf, int len) { #if defined(USE_GETCWD) if (getcwd((char *)buf, len) == NULL) { STRCPY(buf, strerror(errno)); return FAIL; } return OK; #else return (getwd((char *)buf) != NULL ? OK : FAIL); #endif } /* * Get absolute file name into "buf[len]". * * return FAIL for failure, OK for success */ int mch_FullName( char_u *fname, char_u *buf, int len, int force) // also expand when already absolute path { int l; #ifdef HAVE_FCHDIR int fd = -1; static int dont_fchdir = FALSE; // TRUE when fchdir() doesn't work #endif char_u olddir[MAXPATHL]; char_u *p; int retval = OK; #ifdef __CYGWIN__ char_u posix_fname[MAXPATHL]; // Cygwin docs mention MAX_PATH, but // it's not always defined #endif #ifdef VMS fname = vms_fixfilename(fname); #endif #ifdef __CYGWIN__ /* * This helps for when "/etc/hosts" is a symlink to "c:/something/hosts". */ # if CYGWIN_VERSION_DLL_MAJOR >= 1007 // Use CCP_RELATIVE to avoid that it sometimes returns a path that ends in // a forward slash. cygwin_conv_path(CCP_WIN_A_TO_POSIX | CCP_RELATIVE, fname, posix_fname, MAXPATHL); # else cygwin_conv_to_posix_path(fname, posix_fname); # endif fname = posix_fname; #endif // Expand it if forced or not an absolute path. // Do not do it for "/file", the result is always "/". if ((force || !mch_isFullName(fname)) && ((p = vim_strrchr(fname, '/')) == NULL || p != fname)) { /* * If the file name has a path, change to that directory for a moment, * and then get the directory (and get back to where we were). * This will get the correct path name with "../" things. */ if (p != NULL) { #ifdef HAVE_FCHDIR /* * Use fchdir() if possible, it's said to be faster and more * reliable. But on SunOS 4 it might not work. Check this by * doing a fchdir() right now. */ if (!dont_fchdir) { fd = open(".", O_RDONLY | O_EXTRA, 0); if (fd >= 0 && fchdir(fd) < 0) { close(fd); fd = -1; dont_fchdir = TRUE; // don't try again } } #endif // Only change directory when we are sure we can return to where // we are now. After doing "su" chdir(".") might not work. if ( #ifdef HAVE_FCHDIR fd < 0 && #endif (mch_dirname(olddir, MAXPATHL) == FAIL || mch_chdir((char *)olddir) != 0)) { p = NULL; // can't get current dir: don't chdir retval = FAIL; } else { // The directory is copied into buf[], to be able to remove // the file name without changing it (could be a string in // read-only memory) if (p - fname >= len) retval = FAIL; else { vim_strncpy(buf, fname, p - fname); if (mch_chdir((char *)buf)) retval = FAIL; else fname = p + 1; *buf = NUL; } } } if (mch_dirname(buf, len) == FAIL) { retval = FAIL; *buf = NUL; } if (p != NULL) { #ifdef HAVE_FCHDIR if (fd >= 0) { if (p_verbose >= 5) { verbose_enter(); msg("fchdir() to previous dir"); verbose_leave(); } l = fchdir(fd); close(fd); } else #endif l = mch_chdir((char *)olddir); if (l != 0) emsg(_(e_prev_dir)); } l = STRLEN(buf); if (l >= len - 1) retval = FAIL; // no space for trailing "/" #ifndef VMS else if (l > 0 && buf[l - 1] != '/' && *fname != NUL && STRCMP(fname, ".") != 0) STRCAT(buf, "/"); #endif } // Catch file names which are too long. if (retval == FAIL || (int)(STRLEN(buf) + STRLEN(fname)) >= len) return FAIL; // Do not append ".", "/dir/." is equal to "/dir". if (STRCMP(fname, ".") != 0) STRCAT(buf, fname); return OK; } /* * Return TRUE if "fname" does not depend on the current directory. */ int mch_isFullName(char_u *fname) { #ifdef VMS return ( fname[0] == '/' || fname[0] == '.' || strchr((char *)fname,':') || strchr((char *)fname,'"') || (strchr((char *)fname,'[') && strchr((char *)fname,']'))|| (strchr((char *)fname,'<') && strchr((char *)fname,'>')) ); #else return (*fname == '/' || *fname == '~'); #endif } #if defined(USE_FNAME_CASE) || defined(PROTO) /* * Set the case of the file name, if it already exists. This will cause the * file name to remain exactly the same. * Only required for file systems where case is ignored and preserved. */ void fname_case( char_u *name, int len UNUSED) // buffer size, only used when name gets longer { struct stat st; char_u *slash, *tail; DIR *dirp; struct dirent *dp; if (mch_lstat((char *)name, &st) >= 0) { // Open the directory where the file is located. slash = vim_strrchr(name, '/'); if (slash == NULL) { dirp = opendir("."); tail = name; } else { *slash = NUL; dirp = opendir((char *)name); *slash = '/'; tail = slash + 1; } if (dirp != NULL) { while ((dp = readdir(dirp)) != NULL) { // Only accept names that differ in case and are the same byte // length. TODO: accept different length name. if (STRICMP(tail, dp->d_name) == 0 && STRLEN(tail) == STRLEN(dp->d_name)) { char_u newname[MAXPATHL + 1]; struct stat st2; // Verify the inode is equal. vim_strncpy(newname, name, MAXPATHL); vim_strncpy(newname + (tail - name), (char_u *)dp->d_name, MAXPATHL - (tail - name)); if (mch_lstat((char *)newname, &st2) >= 0 && st.st_ino == st2.st_ino && st.st_dev == st2.st_dev) { STRCPY(tail, dp->d_name); break; } } } closedir(dirp); } } } #endif /* * Get file permissions for 'name'. * Returns -1 when it doesn't exist. */ long mch_getperm(char_u *name) { struct stat statb; // Keep the #ifdef outside of stat(), it may be a macro. #ifdef VMS if (stat((char *)vms_fixfilename(name), &statb)) #else if (stat((char *)name, &statb)) #endif return -1; #ifdef __INTERIX // The top bit makes the value negative, which means the file doesn't // exist. Remove the bit, we don't use it. return statb.st_mode & ~S_ADDACE; #else return statb.st_mode; #endif } /* * Set file permission for "name" to "perm". * Return FAIL for failure, OK otherwise. */ int mch_setperm(char_u *name, long perm) { return (chmod((char *) #ifdef VMS vms_fixfilename(name), #else name, #endif (mode_t)perm) == 0 ? OK : FAIL); } #if defined(HAVE_FCHMOD) || defined(PROTO) /* * Set file permission for open file "fd" to "perm". * Return FAIL for failure, OK otherwise. */ int mch_fsetperm(int fd, long perm) { return (fchmod(fd, (mode_t)perm) == 0 ? OK : FAIL); } #endif #if defined(HAVE_ACL) || defined(PROTO) # ifdef HAVE_SYS_ACL_H # include <sys/acl.h> # endif # ifdef HAVE_SYS_ACCESS_H # include <sys/access.h> # endif # ifdef HAVE_SOLARIS_ACL typedef struct vim_acl_solaris_T { int acl_cnt; aclent_t *acl_entry; } vim_acl_solaris_T; # endif #if defined(HAVE_SELINUX) || defined(PROTO) /* * Copy security info from "from_file" to "to_file". */ void mch_copy_sec(char_u *from_file, char_u *to_file) { if (from_file == NULL) return; if (selinux_enabled == -1) selinux_enabled = is_selinux_enabled(); if (selinux_enabled > 0) { // Use "char *" instead of "security_context_t" to avoid a deprecation // warning. char *from_context = NULL; char *to_context = NULL; if (getfilecon((char *)from_file, &from_context) < 0) { // If the filesystem doesn't support extended attributes, // the original had no special security context and the // target cannot have one either. if (errno == EOPNOTSUPP) return; msg_puts(_("\nCould not get security context for ")); msg_outtrans(from_file); msg_putchar('\n'); return; } if (getfilecon((char *)to_file, &to_context) < 0) { msg_puts(_("\nCould not get security context for ")); msg_outtrans(to_file); msg_putchar('\n'); freecon (from_context); return ; } if (strcmp(from_context, to_context) != 0) { if (setfilecon((char *)to_file, from_context) < 0) { msg_puts(_("\nCould not set security context for ")); msg_outtrans(to_file); msg_putchar('\n'); } } freecon(to_context); freecon(from_context); } } #endif // HAVE_SELINUX #if defined(HAVE_SMACK) && !defined(PROTO) /* * Copy security info from "from_file" to "to_file". */ void mch_copy_sec(char_u *from_file, char_u *to_file) { static const char * const smack_copied_attributes[] = { XATTR_NAME_SMACK, XATTR_NAME_SMACKEXEC, XATTR_NAME_SMACKMMAP }; char buffer[SMACK_LABEL_LEN]; const char *name; int index; int ret; ssize_t size; if (from_file == NULL) return; for (index = 0 ; index < (int)(sizeof(smack_copied_attributes) / sizeof(smack_copied_attributes)[0]) ; index++) { // get the name of the attribute to copy name = smack_copied_attributes[index]; // get the value of the attribute in buffer size = getxattr((char*)from_file, name, buffer, sizeof(buffer)); if (size >= 0) { // copy the attribute value of buffer ret = setxattr((char*)to_file, name, buffer, (size_t)size, 0); if (ret < 0) { vim_snprintf((char *)IObuff, IOSIZE, _("Could not set security context %s for %s"), name, to_file); msg_outtrans(IObuff); msg_putchar('\n'); } } else { // what reason of not having the attribute value? switch (errno) { case ENOTSUP: // extended attributes aren't supported or enabled // should a message be echoed? not sure... return; // leave because it isn't useful to continue case ERANGE: default: // no enough size OR unexpected error vim_snprintf((char *)IObuff, IOSIZE, _("Could not get security context %s for %s. Removing it!"), name, from_file); msg_puts((char *)IObuff); msg_putchar('\n'); // FALLTHROUGH to remove the attribute case ENODATA: // no attribute of this name ret = removexattr((char*)to_file, name); // Silently ignore errors, apparently this happens when // smack is not actually being used. break; } } } } #endif // HAVE_SMACK /* * Return a pointer to the ACL of file "fname" in allocated memory. * Return NULL if the ACL is not available for whatever reason. */ vim_acl_T mch_get_acl(char_u *fname UNUSED) { vim_acl_T ret = NULL; #ifdef HAVE_POSIX_ACL ret = (vim_acl_T)acl_get_file((char *)fname, ACL_TYPE_ACCESS); #else #ifdef HAVE_SOLARIS_ZFS_ACL acl_t *aclent; if (acl_get((char *)fname, 0, &aclent) < 0) return NULL; ret = (vim_acl_T)aclent; #else #ifdef HAVE_SOLARIS_ACL vim_acl_solaris_T *aclent; aclent = malloc(sizeof(vim_acl_solaris_T)); if ((aclent->acl_cnt = acl((char *)fname, GETACLCNT, 0, NULL)) < 0) { free(aclent); return NULL; } aclent->acl_entry = malloc(aclent->acl_cnt * sizeof(aclent_t)); if (acl((char *)fname, GETACL, aclent->acl_cnt, aclent->acl_entry) < 0) { free(aclent->acl_entry); free(aclent); return NULL; } ret = (vim_acl_T)aclent; #else #if defined(HAVE_AIX_ACL) int aclsize; struct acl *aclent; aclsize = sizeof(struct acl); aclent = malloc(aclsize); if (statacl((char *)fname, STX_NORMAL, aclent, aclsize) < 0) { if (errno == ENOSPC) { aclsize = aclent->acl_len; aclent = realloc(aclent, aclsize); if (statacl((char *)fname, STX_NORMAL, aclent, aclsize) < 0) { free(aclent); return NULL; } } else { free(aclent); return NULL; } } ret = (vim_acl_T)aclent; #endif // HAVE_AIX_ACL #endif // HAVE_SOLARIS_ACL #endif // HAVE_SOLARIS_ZFS_ACL #endif // HAVE_POSIX_ACL return ret; } /* * Set the ACL of file "fname" to "acl" (unless it's NULL). */ void mch_set_acl(char_u *fname UNUSED, vim_acl_T aclent) { if (aclent == NULL) return; #ifdef HAVE_POSIX_ACL acl_set_file((char *)fname, ACL_TYPE_ACCESS, (acl_t)aclent); #else #ifdef HAVE_SOLARIS_ZFS_ACL acl_set((char *)fname, (acl_t *)aclent); #else #ifdef HAVE_SOLARIS_ACL acl((char *)fname, SETACL, ((vim_acl_solaris_T *)aclent)->acl_cnt, ((vim_acl_solaris_T *)aclent)->acl_entry); #else #ifdef HAVE_AIX_ACL chacl((char *)fname, aclent, ((struct acl *)aclent)->acl_len); #endif // HAVE_AIX_ACL #endif // HAVE_SOLARIS_ACL #endif // HAVE_SOLARIS_ZFS_ACL #endif // HAVE_POSIX_ACL } void mch_free_acl(vim_acl_T aclent) { if (aclent == NULL) return; #ifdef HAVE_POSIX_ACL acl_free((acl_t)aclent); #else #ifdef HAVE_SOLARIS_ZFS_ACL acl_free((acl_t *)aclent); #else #ifdef HAVE_SOLARIS_ACL free(((vim_acl_solaris_T *)aclent)->acl_entry); free(aclent); #else #ifdef HAVE_AIX_ACL free(aclent); #endif // HAVE_AIX_ACL #endif // HAVE_SOLARIS_ACL #endif // HAVE_SOLARIS_ZFS_ACL #endif // HAVE_POSIX_ACL } #endif /* * Set hidden flag for "name". */ void mch_hide(char_u *name UNUSED) { // can't hide a file } /* * return TRUE if "name" is a directory or a symlink to a directory * return FALSE if "name" is not a directory * return FALSE for error */ int mch_isdir(char_u *name) { struct stat statb; if (*name == NUL) // Some stat()s don't flag "" as an error. return FALSE; if (stat((char *)name, &statb)) return FALSE; return (S_ISDIR(statb.st_mode) ? TRUE : FALSE); } /* * return TRUE if "name" is a directory, NOT a symlink to a directory * return FALSE if "name" is not a directory * return FALSE for error */ int mch_isrealdir(char_u *name) { struct stat statb; if (*name == NUL) // Some stat()s don't flag "" as an error. return FALSE; if (mch_lstat((char *)name, &statb)) return FALSE; return (S_ISDIR(statb.st_mode) ? TRUE : FALSE); } /* * Return 1 if "name" is an executable file, 0 if not or it doesn't exist. */ static int executable_file(char_u *name) { struct stat st; if (stat((char *)name, &st)) return 0; #ifdef VMS // Like on Unix system file can have executable rights but not necessarily // be an executable, but on Unix is not a default for an ordinary file to // have an executable flag - on VMS it is in most cases. // Therefore, this check does not have any sense - let keep us to the // conventions instead: // *.COM and *.EXE files are the executables - the rest are not. This is // not ideal but better then it was. int vms_executable = 0; if (S_ISREG(st.st_mode) && mch_access((char *)name, X_OK) == 0) { if (strstr(vms_tolower((char*)name),".exe") != NULL || strstr(vms_tolower((char*)name),".com")!= NULL) vms_executable = 1; } return vms_executable; #else return S_ISREG(st.st_mode) && mch_access((char *)name, X_OK) == 0; #endif } /* * Return TRUE if "name" can be found in $PATH and executed, FALSE if not. * If "use_path" is FALSE only check if "name" is executable. * Return -1 if unknown. */ int mch_can_exe(char_u *name, char_u **path, int use_path) { char_u *buf; char_u *p, *e; int retval; // When "use_path" is false and if it's an absolute or relative path don't // need to use $PATH. if (!use_path || gettail(name) != name) { // There must be a path separator, files in the current directory // can't be executed. if ((use_path || gettail(name) != name) && executable_file(name)) { if (path != NULL) { if (name[0] != '/') *path = FullName_save(name, TRUE); else *path = vim_strsave(name); } return TRUE; } return FALSE; } p = (char_u *)getenv("PATH"); if (p == NULL || *p == NUL) return -1; buf = alloc(STRLEN(name) + STRLEN(p) + 2); if (buf == NULL) return -1; /* * Walk through all entries in $PATH to check if "name" exists there and * is an executable file. */ for (;;) { e = (char_u *)strchr((char *)p, ':'); if (e == NULL) e = p + STRLEN(p); if (e - p <= 1) // empty entry means current dir STRCPY(buf, "./"); else { vim_strncpy(buf, p, e - p); add_pathsep(buf); } STRCAT(buf, name); retval = executable_file(buf); if (retval == 1) { if (path != NULL) { if (buf[0] != '/') *path = FullName_save(buf, TRUE); else *path = vim_strsave(buf); } break; } if (*e != ':') break; p = e + 1; } vim_free(buf); return retval; } /* * Check what "name" is: * NODE_NORMAL: file or directory (or doesn't exist) * NODE_WRITABLE: writable device, socket, fifo, etc. * NODE_OTHER: non-writable things */ int mch_nodetype(char_u *name) { struct stat st; if (stat((char *)name, &st)) return NODE_NORMAL; if (S_ISREG(st.st_mode) || S_ISDIR(st.st_mode)) return NODE_NORMAL; if (S_ISBLK(st.st_mode)) // block device isn't writable return NODE_OTHER; // Everything else is writable? return NODE_WRITABLE; } void mch_early_init(void) { #ifdef HAVE_CHECK_STACK_GROWTH int i; check_stack_growth((char *)&i); # ifdef HAVE_STACK_LIMIT get_stack_limit(); # endif #endif /* * Setup an alternative stack for signals. Helps to catch signals when * running out of stack space. * Use of sigaltstack() is preferred, it's more portable. * Ignore any errors. */ #if defined(HAVE_SIGALTSTACK) || defined(HAVE_SIGSTACK) signal_stack = alloc(SIGSTKSZ); init_signal_stack(); #endif } #if defined(EXITFREE) || defined(PROTO) void mch_free_mem(void) { # if defined(FEAT_CLIPBOARD) && defined(FEAT_X11) if (clip_star.owned) clip_lose_selection(&clip_star); if (clip_plus.owned) clip_lose_selection(&clip_plus); # endif # if defined(FEAT_X11) && defined(FEAT_XCLIPBOARD) if (xterm_Shell != (Widget)0) XtDestroyWidget(xterm_Shell); # ifndef LESSTIF_VERSION // Lesstif crashes here, lose some memory if (xterm_dpy != NULL) XtCloseDisplay(xterm_dpy); if (app_context != (XtAppContext)NULL) { XtDestroyApplicationContext(app_context); # ifdef FEAT_X11 x11_display = NULL; // freed by XtDestroyApplicationContext() # endif } # endif # endif # if defined(FEAT_X11) if (x11_display != NULL # ifdef FEAT_XCLIPBOARD && x11_display != xterm_dpy # endif ) XCloseDisplay(x11_display); # endif # if defined(HAVE_SIGALTSTACK) || defined(HAVE_SIGSTACK) VIM_CLEAR(signal_stack); # endif # ifdef FEAT_TITLE vim_free(oldtitle); vim_free(oldicon); # endif } #endif /* * Output a newline when exiting. * Make sure the newline goes to the same stream as the text. */ static void exit_scroll(void) { if (silent_mode) return; if (newline_on_exit || msg_didout) { if (msg_use_printf()) { if (info_message) mch_msg("\n"); else mch_errmsg("\r\n"); } else out_char('\n'); } else { restore_cterm_colors(); // get original colors back msg_clr_eos_force(); // clear the rest of the display windgoto((int)Rows - 1, 0); // may have moved the cursor } } #ifdef USE_GCOV_FLUSH extern void __gcov_flush(); #endif void mch_exit(int r) { exiting = TRUE; #if defined(FEAT_X11) && defined(FEAT_CLIPBOARD) x11_export_final_selection(); #endif #ifdef FEAT_GUI if (!gui.in_use) #endif { settmode(TMODE_COOK); #ifdef FEAT_TITLE // restore xterm title and icon name mch_restore_title(SAVE_RESTORE_BOTH); term_pop_title(SAVE_RESTORE_BOTH); #endif /* * When t_ti is not empty but it doesn't cause swapping terminal * pages, need to output a newline when msg_didout is set. But when * t_ti does swap pages it should not go to the shell page. Do this * before stoptermcap(). */ if (swapping_screen() && !newline_on_exit) exit_scroll(); // Stop termcap: May need to check for T_CRV response, which // requires RAW mode. stoptermcap(); /* * A newline is only required after a message in the alternate screen. * This is set to TRUE by wait_return(). */ if (!swapping_screen() || newline_on_exit) exit_scroll(); // Cursor may have been switched off without calling starttermcap() // when doing "vim -u vimrc" and vimrc contains ":q". if (full_screen) cursor_on(); } out_flush(); ml_close_all(TRUE); // remove all memfiles #ifdef USE_GCOV_FLUSH // Flush coverage info before possibly being killed by a deadly signal. __gcov_flush(); #endif may_core_dump(); #ifdef FEAT_GUI if (gui.in_use) gui_exit(r); #endif #ifdef MACOS_CONVERT mac_conv_cleanup(); #endif #ifdef __QNX__ // A core dump won't be created if the signal handler // doesn't return, so we can't call exit() if (deadly_signal != 0) return; #endif #ifdef FEAT_NETBEANS_INTG netbeans_send_disconnect(); #endif #ifdef EXITFREE free_all_mem(); #endif exit(r); } static void may_core_dump(void) { if (deadly_signal != 0) { signal(deadly_signal, SIG_DFL); kill(getpid(), deadly_signal); // Die using the signal we caught } } #ifndef VMS /* * Get the file descriptor to use for tty operations. */ static int get_tty_fd(int fd) { int tty_fd = fd; #if defined(HAVE_SVR4_PTYS) && defined(SUN_SYSTEM) // On SunOS: Get the terminal parameters from "fd", or the slave device of // "fd" when it is a master device. if (mch_isatty(fd) > 1) { char *name; name = ptsname(fd); if (name == NULL) return -1; tty_fd = open(name, O_RDONLY | O_NOCTTY | O_EXTRA, 0); if (tty_fd < 0) return -1; } #endif return tty_fd; } static int mch_tcgetattr(int fd, void *term) { int tty_fd; int retval = -1; tty_fd = get_tty_fd(fd); if (tty_fd >= 0) { #ifdef NEW_TTY_SYSTEM # ifdef HAVE_TERMIOS_H retval = tcgetattr(tty_fd, (struct termios *)term); # else retval = ioctl(tty_fd, TCGETA, (struct termio *)term); # endif #else // for "old" tty systems retval = ioctl(tty_fd, TIOCGETP, (struct sgttyb *)term); #endif if (tty_fd != fd) close(tty_fd); } return retval; } void mch_settmode(tmode_T tmode) { static int first = TRUE; #ifdef NEW_TTY_SYSTEM # ifdef HAVE_TERMIOS_H static struct termios told; struct termios tnew; # else static struct termio told; struct termio tnew; # endif if (first) { first = FALSE; mch_tcgetattr(read_cmd_fd, &told); } tnew = told; if (tmode == TMODE_RAW) { // ~ICRNL enables typing ^V^M // ~IXON disables CTRL-S stopping output, so that it can be mapped. tnew.c_iflag &= ~(ICRNL | IXON); tnew.c_lflag &= ~(ICANON | ECHO | ISIG | ECHOE # if defined(IEXTEN) | IEXTEN // IEXTEN enables typing ^V on SOLARIS # endif ); # ifdef ONLCR // Don't map NL -> CR NL, we do it ourselves. // Also disable expanding tabs if possible. # ifdef XTABS tnew.c_oflag &= ~(ONLCR | XTABS); # else # ifdef TAB3 tnew.c_oflag &= ~(ONLCR | TAB3); # else tnew.c_oflag &= ~ONLCR; # endif # endif # endif tnew.c_cc[VMIN] = 1; // return after 1 char tnew.c_cc[VTIME] = 0; // don't wait } else if (tmode == TMODE_SLEEP) { // Also reset ICANON here, otherwise on Solaris select() won't see // typeahead characters. tnew.c_lflag &= ~(ICANON | ECHO); tnew.c_cc[VMIN] = 1; // return after 1 char tnew.c_cc[VTIME] = 0; // don't wait } # if defined(HAVE_TERMIOS_H) { int n = 10; // A signal may cause tcsetattr() to fail (e.g., SIGCONT). Retry a // few times. while (tcsetattr(read_cmd_fd, TCSANOW, &tnew) == -1 && errno == EINTR && n > 0) --n; } # else ioctl(read_cmd_fd, TCSETA, &tnew); # endif #else /* * for "old" tty systems */ # ifndef TIOCSETN # define TIOCSETN TIOCSETP // for hpux 9.0 # endif static struct sgttyb ttybold; struct sgttyb ttybnew; if (first) { first = FALSE; mch_tcgetattr(read_cmd_fd, &ttybold); } ttybnew = ttybold; if (tmode == TMODE_RAW) { ttybnew.sg_flags &= ~(CRMOD | ECHO); ttybnew.sg_flags |= RAW; } else if (tmode == TMODE_SLEEP) ttybnew.sg_flags &= ~(ECHO); ioctl(read_cmd_fd, TIOCSETN, &ttybnew); #endif mch_cur_tmode = tmode; } /* * Try to get the code for "t_kb" from the stty setting * * Even if termcap claims a backspace key, the user's setting *should* * prevail. stty knows more about reality than termcap does, and if * somebody's usual erase key is DEL (which, for most BSD users, it will * be), they're going to get really annoyed if their erase key starts * doing forward deletes for no reason. (Eric Fischer) */ void get_stty(void) { ttyinfo_T info; char_u buf[2]; char_u *p; if (get_tty_info(read_cmd_fd, &info) == OK) { intr_char = info.interrupt; buf[0] = info.backspace; buf[1] = NUL; add_termcode((char_u *)"kb", buf, FALSE); // If <BS> and <DEL> are now the same, redefine <DEL>. p = find_termcode((char_u *)"kD"); if (p != NULL && p[0] == buf[0] && p[1] == buf[1]) do_fixdel(NULL); } } /* * Obtain the characters that Backspace and Enter produce on "fd". * Returns OK or FAIL. */ int get_tty_info(int fd, ttyinfo_T *info) { #ifdef NEW_TTY_SYSTEM # ifdef HAVE_TERMIOS_H struct termios keys; # else struct termio keys; # endif if (mch_tcgetattr(fd, &keys) != -1) { info->backspace = keys.c_cc[VERASE]; info->interrupt = keys.c_cc[VINTR]; if (keys.c_iflag & ICRNL) info->enter = NL; else info->enter = CAR; if (keys.c_oflag & ONLCR) info->nl_does_cr = TRUE; else info->nl_does_cr = FALSE; return OK; } #else // for "old" tty systems struct sgttyb keys; if (mch_tcgetattr(fd, &keys) != -1) { info->backspace = keys.sg_erase; info->interrupt = keys.sg_kill; info->enter = CAR; info->nl_does_cr = TRUE; return OK; } #endif return FAIL; } #endif // VMS static int mouse_ison = FALSE; /* * Set mouse clicks on or off. */ void mch_setmouse(int on) { #ifdef FEAT_BEVAL_TERM static int bevalterm_ison = FALSE; #endif int xterm_mouse_vers; #if defined(FEAT_X11) && defined(FEAT_XCLIPBOARD) if (!on) // Make sure not tracing mouse movements. Important when a button-down // was received but no release yet. stop_xterm_trace(); #endif if (on == mouse_ison #ifdef FEAT_BEVAL_TERM && p_bevalterm == bevalterm_ison #endif ) // return quickly if nothing to do return; xterm_mouse_vers = use_xterm_mouse(); #ifdef FEAT_MOUSE_URXVT if (ttym_flags == TTYM_URXVT) { out_str_nf((char_u *) (on ? IF_EB("\033[?1015h", ESC_STR "[?1015h") : IF_EB("\033[?1015l", ESC_STR "[?1015l"))); mouse_ison = on; } #endif if (ttym_flags == TTYM_SGR) { // SGR mode supports columns above 223 out_str_nf((char_u *) (on ? IF_EB("\033[?1006h", ESC_STR "[?1006h") : IF_EB("\033[?1006l", ESC_STR "[?1006l"))); mouse_ison = on; } #ifdef FEAT_BEVAL_TERM if (bevalterm_ison != (p_bevalterm && on)) { bevalterm_ison = (p_bevalterm && on); if (xterm_mouse_vers > 1 && !bevalterm_ison) // disable mouse movement events, enabling is below out_str_nf((char_u *) (IF_EB("\033[?1003l", ESC_STR "[?1003l"))); } #endif if (xterm_mouse_vers > 0) { if (on) // enable mouse events, use mouse tracking if available out_str_nf((char_u *) (xterm_mouse_vers > 1 ? ( #ifdef FEAT_BEVAL_TERM bevalterm_ison ? IF_EB("\033[?1003h", ESC_STR "[?1003h") : #endif IF_EB("\033[?1002h", ESC_STR "[?1002h")) : IF_EB("\033[?1000h", ESC_STR "[?1000h"))); else // disable mouse events, could probably always send the same out_str_nf((char_u *) (xterm_mouse_vers > 1 ? IF_EB("\033[?1002l", ESC_STR "[?1002l") : IF_EB("\033[?1000l", ESC_STR "[?1000l"))); mouse_ison = on; } #ifdef FEAT_MOUSE_DEC else if (ttym_flags == TTYM_DEC) { if (on) // enable mouse events out_str_nf((char_u *)"\033[1;2'z\033[1;3'{"); else // disable mouse events out_str_nf((char_u *)"\033['z"); mouse_ison = on; } #endif #ifdef FEAT_MOUSE_GPM else { if (on) { if (gpm_open()) mouse_ison = TRUE; } else { gpm_close(); mouse_ison = FALSE; } } #endif #ifdef FEAT_SYSMOUSE else { if (on) { if (sysmouse_open() == OK) mouse_ison = TRUE; } else { sysmouse_close(); mouse_ison = FALSE; } } #endif #ifdef FEAT_MOUSE_JSB else { if (on) { // D - Enable Mouse up/down messages // L - Enable Left Button Reporting // M - Enable Middle Button Reporting // R - Enable Right Button Reporting // K - Enable SHIFT and CTRL key Reporting // + - Enable Advanced messaging of mouse moves and up/down messages // Q - Quiet No Ack // # - Numeric value of mouse pointer required // 0 = Multiview 2000 cursor, used as standard // 1 = Windows Arrow // 2 = Windows I Beam // 3 = Windows Hour Glass // 4 = Windows Cross Hair // 5 = Windows UP Arrow # ifdef JSBTERM_MOUSE_NONADVANCED // Disables full feedback of pointer movements out_str_nf((char_u *)IF_EB("\033[0~ZwLMRK1Q\033\\", ESC_STR "[0~ZwLMRK1Q" ESC_STR "\\")); # else out_str_nf((char_u *)IF_EB("\033[0~ZwLMRK+1Q\033\\", ESC_STR "[0~ZwLMRK+1Q" ESC_STR "\\")); # endif mouse_ison = TRUE; } else { out_str_nf((char_u *)IF_EB("\033[0~ZwQ\033\\", ESC_STR "[0~ZwQ" ESC_STR "\\")); mouse_ison = FALSE; } } #endif #ifdef FEAT_MOUSE_PTERM else { // 1 = button press, 6 = release, 7 = drag, 1h...9l = right button if (on) out_str_nf("\033[>1h\033[>6h\033[>7h\033[>1h\033[>9l"); else out_str_nf("\033[>1l\033[>6l\033[>7l\033[>1l\033[>9h"); mouse_ison = on; } #endif } #if defined(FEAT_BEVAL_TERM) || defined(PROTO) /* * Called when 'balloonevalterm' changed. */ void mch_bevalterm_changed(void) { mch_setmouse(mouse_ison); } #endif /* * Set the mouse termcode, depending on the 'term' and 'ttymouse' options. */ void check_mouse_termcode(void) { # ifdef FEAT_MOUSE_XTERM if (use_xterm_mouse() # ifdef FEAT_MOUSE_URXVT && use_xterm_mouse() != 3 # endif # ifdef FEAT_GUI && !gui.in_use # endif ) { set_mouse_termcode(KS_MOUSE, (char_u *)(term_is_8bit(T_NAME) ? IF_EB("\233M", CSI_STR "M") : IF_EB("\033[M", ESC_STR "[M"))); if (*p_mouse != NUL) { // force mouse off and maybe on to send possibly new mouse // activation sequence to the xterm, with(out) drag tracing. mch_setmouse(FALSE); setmouse(); } } else del_mouse_termcode(KS_MOUSE); # endif # ifdef FEAT_MOUSE_GPM if (!use_xterm_mouse() # ifdef FEAT_GUI && !gui.in_use # endif ) set_mouse_termcode(KS_GPM_MOUSE, (char_u *)IF_EB("\033MG", ESC_STR "MG")); else del_mouse_termcode(KS_GPM_MOUSE); # endif # ifdef FEAT_SYSMOUSE if (!use_xterm_mouse() # ifdef FEAT_GUI && !gui.in_use # endif ) set_mouse_termcode(KS_MOUSE, (char_u *)IF_EB("\033MS", ESC_STR "MS")); # endif # ifdef FEAT_MOUSE_JSB // Conflicts with xterm mouse: "\033[" and "\033[M" ??? if (!use_xterm_mouse() # ifdef FEAT_GUI && !gui.in_use # endif ) set_mouse_termcode(KS_JSBTERM_MOUSE, (char_u *)IF_EB("\033[0~zw", ESC_STR "[0~zw")); else del_mouse_termcode(KS_JSBTERM_MOUSE); # endif # ifdef FEAT_MOUSE_NET // There is no conflict, but one may type "ESC }" from Insert mode. Don't // define it in the GUI or when using an xterm. if (!use_xterm_mouse() # ifdef FEAT_GUI && !gui.in_use # endif ) set_mouse_termcode(KS_NETTERM_MOUSE, (char_u *)IF_EB("\033}", ESC_STR "}")); else del_mouse_termcode(KS_NETTERM_MOUSE); # endif # ifdef FEAT_MOUSE_DEC // Conflicts with xterm mouse: "\033[" and "\033[M" if (!use_xterm_mouse() # ifdef FEAT_GUI && !gui.in_use # endif ) set_mouse_termcode(KS_DEC_MOUSE, (char_u *)(term_is_8bit(T_NAME) ? IF_EB("\233", CSI_STR) : IF_EB("\033[", ESC_STR "["))); else del_mouse_termcode(KS_DEC_MOUSE); # endif # ifdef FEAT_MOUSE_PTERM // same conflict as the dec mouse if (!use_xterm_mouse() # ifdef FEAT_GUI && !gui.in_use # endif ) set_mouse_termcode(KS_PTERM_MOUSE, (char_u *) IF_EB("\033[", ESC_STR "[")); else del_mouse_termcode(KS_PTERM_MOUSE); # endif # ifdef FEAT_MOUSE_URXVT if (use_xterm_mouse() == 3 # ifdef FEAT_GUI && !gui.in_use # endif ) { set_mouse_termcode(KS_URXVT_MOUSE, (char_u *)(term_is_8bit(T_NAME) ? IF_EB("\233*M", CSI_STR "*M") : IF_EB("\033[*M", ESC_STR "[*M"))); if (*p_mouse != NUL) { mch_setmouse(FALSE); setmouse(); } } else del_mouse_termcode(KS_URXVT_MOUSE); # endif if (use_xterm_mouse() == 4 # ifdef FEAT_GUI && !gui.in_use # endif ) { set_mouse_termcode(KS_SGR_MOUSE, (char_u *)(term_is_8bit(T_NAME) ? IF_EB("\233<*M", CSI_STR "<*M") : IF_EB("\033[<*M", ESC_STR "[<*M"))); set_mouse_termcode(KS_SGR_MOUSE_RELEASE, (char_u *)(term_is_8bit(T_NAME) ? IF_EB("\233<*m", CSI_STR "<*m") : IF_EB("\033[<*m", ESC_STR "[<*m"))); if (*p_mouse != NUL) { mch_setmouse(FALSE); setmouse(); } } else { del_mouse_termcode(KS_SGR_MOUSE); del_mouse_termcode(KS_SGR_MOUSE_RELEASE); } } #ifndef VMS /* * Try to get the current window size: * 1. with an ioctl(), most accurate method * 2. from the environment variables LINES and COLUMNS * 3. from the termcap * 4. keep using the old values * Return OK when size could be determined, FAIL otherwise. */ int mch_get_shellsize(void) { long rows = 0; long columns = 0; char_u *p; /* * 1. try using an ioctl. It is the most accurate method. * * Try using TIOCGWINSZ first, some systems that have it also define * TIOCGSIZE but don't have a struct ttysize. */ # ifdef TIOCGWINSZ { struct winsize ws; int fd = 1; // When stdout is not a tty, use stdin for the ioctl(). if (!isatty(fd) && isatty(read_cmd_fd)) fd = read_cmd_fd; if (ioctl(fd, TIOCGWINSZ, &ws) == 0) { columns = ws.ws_col; rows = ws.ws_row; } } # else // TIOCGWINSZ # ifdef TIOCGSIZE { struct ttysize ts; int fd = 1; // When stdout is not a tty, use stdin for the ioctl(). if (!isatty(fd) && isatty(read_cmd_fd)) fd = read_cmd_fd; if (ioctl(fd, TIOCGSIZE, &ts) == 0) { columns = ts.ts_cols; rows = ts.ts_lines; } } # endif // TIOCGSIZE # endif // TIOCGWINSZ /* * 2. get size from environment * When being POSIX compliant ('|' flag in 'cpoptions') this overrules * the ioctl() values! */ if (columns == 0 || rows == 0 || vim_strchr(p_cpo, CPO_TSIZE) != NULL) { if ((p = (char_u *)getenv("LINES"))) rows = atoi((char *)p); if ((p = (char_u *)getenv("COLUMNS"))) columns = atoi((char *)p); } #ifdef HAVE_TGETENT /* * 3. try reading "co" and "li" entries from termcap */ if (columns == 0 || rows == 0) getlinecol(&columns, &rows); #endif /* * 4. If everything fails, use the old values */ if (columns <= 0 || rows <= 0) return FAIL; Rows = rows; Columns = columns; limit_screen_size(); return OK; } #if defined(FEAT_TERMINAL) || defined(PROTO) /* * Report the windows size "rows" and "cols" to tty "fd". */ int mch_report_winsize(int fd, int rows, int cols) { int tty_fd; int retval = -1; tty_fd = get_tty_fd(fd); if (tty_fd >= 0) { # if defined(TIOCSWINSZ) struct winsize ws; ws.ws_col = cols; ws.ws_row = rows; ws.ws_xpixel = cols * 5; ws.ws_ypixel = rows * 10; retval = ioctl(tty_fd, TIOCSWINSZ, &ws); ch_log(NULL, "ioctl(TIOCSWINSZ) %s", retval == 0 ? "success" : "failed"); # elif defined(TIOCSSIZE) struct ttysize ts; ts.ts_cols = cols; ts.ts_lines = rows; retval = ioctl(tty_fd, TIOCSSIZE, &ts); ch_log(NULL, "ioctl(TIOCSSIZE) %s", retval == 0 ? "success" : "failed"); # endif if (tty_fd != fd) close(tty_fd); } return retval == 0 ? OK : FAIL; } #endif /* * Try to set the window size to Rows and Columns. */ void mch_set_shellsize(void) { if (*T_CWS) { /* * NOTE: if you get an error here that term_set_winsize() is * undefined, check the output of configure. It could probably not * find a ncurses, termcap or termlib library. */ term_set_winsize((int)Rows, (int)Columns); out_flush(); screen_start(); // don't know where cursor is now } } #endif // VMS /* * Rows and/or Columns has changed. */ void mch_new_shellsize(void) { // Nothing to do. } /* * Wait for process "child" to end. * Return "child" if it exited properly, <= 0 on error. */ static pid_t wait4pid(pid_t child, waitstatus *status) { pid_t wait_pid = 0; long delay_msec = 1; while (wait_pid != child) { // When compiled with Python threads are probably used, in which case // wait() sometimes hangs for no obvious reason. Use waitpid() // instead and loop (like the GUI). Also needed for other interfaces, // they might call system(). # ifdef __NeXT__ wait_pid = wait4(child, status, WNOHANG, (struct rusage *)0); # else wait_pid = waitpid(child, status, WNOHANG); # endif if (wait_pid == 0) { // Wait for 1 to 10 msec before trying again. mch_delay(delay_msec, MCH_DELAY_IGNOREINPUT | MCH_DELAY_SETTMODE); if (++delay_msec > 10) delay_msec = 10; continue; } if (wait_pid <= 0 # ifdef ECHILD && errno == ECHILD # endif ) break; } return wait_pid; } #if !defined(USE_SYSTEM) || defined(FEAT_JOB_CHANNEL) /* * Set the environment for a child process. */ static void set_child_environment( long rows, long columns, char *term, int is_terminal UNUSED) { # ifdef HAVE_SETENV char envbuf[50]; # else static char envbuf_Term[30]; static char envbuf_Rows[20]; static char envbuf_Lines[20]; static char envbuf_Columns[20]; static char envbuf_Colors[20]; # ifdef FEAT_TERMINAL static char envbuf_Version[20]; # endif # ifdef FEAT_CLIENTSERVER static char envbuf_Servername[60]; # endif # endif # ifdef HAVE_SETENV setenv("TERM", term, 1); sprintf((char *)envbuf, "%ld", rows); setenv("ROWS", (char *)envbuf, 1); sprintf((char *)envbuf, "%ld", rows); setenv("LINES", (char *)envbuf, 1); sprintf((char *)envbuf, "%ld", columns); setenv("COLUMNS", (char *)envbuf, 1); sprintf((char *)envbuf, "%d", t_colors); setenv("COLORS", (char *)envbuf, 1); # ifdef FEAT_TERMINAL if (is_terminal) { sprintf((char *)envbuf, "%ld", (long)get_vim_var_nr(VV_VERSION)); setenv("VIM_TERMINAL", (char *)envbuf, 1); } # endif # ifdef FEAT_CLIENTSERVER setenv("VIM_SERVERNAME", serverName == NULL ? "" : (char *)serverName, 1); # endif # else /* * Putenv does not copy the string, it has to remain valid. * Use a static array to avoid losing allocated memory. * This won't work well when running multiple children... */ vim_snprintf(envbuf_Term, sizeof(envbuf_Term), "TERM=%s", term); putenv(envbuf_Term); vim_snprintf(envbuf_Rows, sizeof(envbuf_Rows), "ROWS=%ld", rows); putenv(envbuf_Rows); vim_snprintf(envbuf_Lines, sizeof(envbuf_Lines), "LINES=%ld", rows); putenv(envbuf_Lines); vim_snprintf(envbuf_Columns, sizeof(envbuf_Columns), "COLUMNS=%ld", columns); putenv(envbuf_Columns); vim_snprintf(envbuf_Colors, sizeof(envbuf_Colors), "COLORS=%ld", t_colors); putenv(envbuf_Colors); # ifdef FEAT_TERMINAL if (is_terminal) { vim_snprintf(envbuf_Version, sizeof(envbuf_Version), "VIM_TERMINAL=%ld", (long)get_vim_var_nr(VV_VERSION)); putenv(envbuf_Version); } # endif # ifdef FEAT_CLIENTSERVER vim_snprintf(envbuf_Servername, sizeof(envbuf_Servername), "VIM_SERVERNAME=%s", serverName == NULL ? "" : (char *)serverName); putenv(envbuf_Servername); # endif # endif } static void set_default_child_environment(int is_terminal) { set_child_environment(Rows, Columns, "dumb", is_terminal); } #endif #if defined(FEAT_GUI) || defined(FEAT_JOB_CHANNEL) /* * Open a PTY, with FD for the master and slave side. * When failing "pty_master_fd" and "pty_slave_fd" are -1. * When successful both file descriptors are stored and the allocated pty name * is stored in both "*name1" and "*name2". */ static void open_pty(int *pty_master_fd, int *pty_slave_fd, char_u **name1, char_u **name2) { char *tty_name; if (name1 != NULL) *name1 = NULL; if (name2 != NULL) *name2 = NULL; *pty_master_fd = mch_openpty(&tty_name); // open pty if (*pty_master_fd >= 0) { // Leaving out O_NOCTTY may lead to waitpid() always returning // 0 on Mac OS X 10.7 thereby causing freezes. Let's assume // adding O_NOCTTY always works when defined. #ifdef O_NOCTTY *pty_slave_fd = open(tty_name, O_RDWR | O_NOCTTY | O_EXTRA, 0); #else *pty_slave_fd = open(tty_name, O_RDWR | O_EXTRA, 0); #endif if (*pty_slave_fd < 0) { close(*pty_master_fd); *pty_master_fd = -1; } else { if (name1 != NULL) *name1 = vim_strsave((char_u *)tty_name); if (name2 != NULL) *name2 = vim_strsave((char_u *)tty_name); } } } #endif /* * Send SIGINT to a child process if "c" is an interrupt character. */ static void may_send_sigint(int c UNUSED, pid_t pid UNUSED, pid_t wpid UNUSED) { # ifdef SIGINT if (c == Ctrl_C || c == intr_char) { # ifdef HAVE_SETSID kill(-pid, SIGINT); # else kill(0, SIGINT); # endif if (wpid > 0) kill(wpid, SIGINT); } # endif } #if !defined(USE_SYSTEM) || defined(FEAT_TERMINAL) || defined(PROTO) /* * Parse "cmd" and return the result in "argvp" which is an allocated array of * pointers, the last one is NULL. * The "sh_tofree" and "shcf_tofree" must be later freed by the caller. */ int unix_build_argv( char_u *cmd, char ***argvp, char_u **sh_tofree, char_u **shcf_tofree) { char **argv = NULL; int argc; *sh_tofree = vim_strsave(p_sh); if (*sh_tofree == NULL) // out of memory return FAIL; if (mch_parse_cmd(*sh_tofree, TRUE, &argv, &argc) == FAIL) return FAIL; *argvp = argv; if (cmd != NULL) { char_u *s; char_u *p; if (extra_shell_arg != NULL) argv[argc++] = (char *)extra_shell_arg; // Break 'shellcmdflag' into white separated parts. This doesn't // handle quoted strings, they are very unlikely to appear. *shcf_tofree = alloc(STRLEN(p_shcf) + 1); if (*shcf_tofree == NULL) // out of memory return FAIL; s = *shcf_tofree; p = p_shcf; while (*p != NUL) { argv[argc++] = (char *)s; while (*p && *p != ' ' && *p != TAB) *s++ = *p++; *s++ = NUL; p = skipwhite(p); } argv[argc++] = (char *)cmd; } argv[argc] = NULL; return OK; } #endif #if defined(FEAT_GUI) && defined(FEAT_TERMINAL) /* * Use a terminal window to run a shell command in. */ static int mch_call_shell_terminal( char_u *cmd, int options UNUSED) // SHELL_*, see vim.h { jobopt_T opt; char **argv = NULL; char_u *tofree1 = NULL; char_u *tofree2 = NULL; int retval = -1; buf_T *buf; job_T *job; aco_save_T aco; oparg_T oa; // operator arguments if (unix_build_argv(cmd, &argv, &tofree1, &tofree2) == FAIL) goto theend; init_job_options(&opt); ch_log(NULL, "starting terminal for system command '%s'", cmd); buf = term_start(NULL, argv, &opt, TERM_START_SYSTEM); if (buf == NULL) goto theend; job = term_getjob(buf->b_term); ++job->jv_refcount; // Find a window to make "buf" curbuf. aucmd_prepbuf(&aco, buf); clear_oparg(&oa); while (term_use_loop()) { if (oa.op_type == OP_NOP && oa.regname == NUL && !VIsual_active) { // If terminal_loop() returns OK we got a key that is handled // in Normal model. We don't do redrawing anyway. if (terminal_loop(TRUE) == OK) normal_cmd(&oa, TRUE); } else normal_cmd(&oa, TRUE); } retval = job->jv_exitval; ch_log(NULL, "system command finished"); job_unref(job); // restore curwin/curbuf and a few other things aucmd_restbuf(&aco); wait_return(TRUE); do_buffer(DOBUF_WIPE, DOBUF_FIRST, FORWARD, buf->b_fnum, TRUE); theend: vim_free(argv); vim_free(tofree1); vim_free(tofree2); return retval; } #endif #ifdef USE_SYSTEM /* * Use system() to start the shell: simple but slow. */ static int mch_call_shell_system( char_u *cmd, int options) // SHELL_*, see vim.h { #ifdef VMS char *ifn = NULL; char *ofn = NULL; #endif tmode_T tmode = cur_tmode; char_u *newcmd; // only needed for unix int x; out_flush(); if (options & SHELL_COOKED) settmode(TMODE_COOK); // set to normal mode # if defined(FEAT_CLIPBOARD) && defined(FEAT_X11) save_clipboard(); loose_clipboard(); # endif if (cmd == NULL) x = system((char *)p_sh); else { # ifdef VMS if (ofn = strchr((char *)cmd, '>')) *ofn++ = '\0'; if (ifn = strchr((char *)cmd, '<')) { char *p; *ifn++ = '\0'; p = strchr(ifn,' '); // chop off any trailing spaces if (p) *p = '\0'; } if (ofn) x = vms_sys((char *)cmd, ofn, ifn); else x = system((char *)cmd); # else newcmd = alloc(STRLEN(p_sh) + (extra_shell_arg == NULL ? 0 : STRLEN(extra_shell_arg)) + STRLEN(p_shcf) + STRLEN(cmd) + 4); if (newcmd == NULL) x = 0; else { sprintf((char *)newcmd, "%s %s %s %s", p_sh, extra_shell_arg == NULL ? "" : (char *)extra_shell_arg, (char *)p_shcf, (char *)cmd); x = system((char *)newcmd); vim_free(newcmd); } # endif } # ifdef VMS x = vms_sys_status(x); # endif if (emsg_silent) ; else if (x == 127) msg_puts(_("\nCannot execute shell sh\n")); else if (x && !(options & SHELL_SILENT)) { msg_puts(_("\nshell returned ")); msg_outnum((long)x); msg_putchar('\n'); } if (tmode == TMODE_RAW) { // The shell may have messed with the mode, always set it. cur_tmode = TMODE_UNKNOWN; settmode(TMODE_RAW); // set to raw mode } # ifdef FEAT_TITLE resettitle(); # endif # if defined(FEAT_CLIPBOARD) && defined(FEAT_X11) restore_clipboard(); # endif return x; } #else // USE_SYSTEM # define EXEC_FAILED 122 // Exit code when shell didn't execute. Don't use // 127, some shells use that already # define OPEN_NULL_FAILED 123 // Exit code if /dev/null can't be opened /* * Don't use system(), use fork()/exec(). */ static int mch_call_shell_fork( char_u *cmd, int options) // SHELL_*, see vim.h { tmode_T tmode = cur_tmode; pid_t pid; pid_t wpid = 0; pid_t wait_pid = 0; # ifdef HAVE_UNION_WAIT union wait status; # else int status = -1; # endif int retval = -1; char **argv = NULL; char_u *tofree1 = NULL; char_u *tofree2 = NULL; int i; int pty_master_fd = -1; // for pty's # ifdef FEAT_GUI int pty_slave_fd = -1; # endif int fd_toshell[2]; // for pipes int fd_fromshell[2]; int pipe_error = FALSE; int did_settmode = FALSE; // settmode(TMODE_RAW) called out_flush(); if (options & SHELL_COOKED) settmode(TMODE_COOK); // set to normal mode if (tmode == TMODE_RAW) // The shell may have messed with the mode, always set it later. cur_tmode = TMODE_UNKNOWN; if (unix_build_argv(cmd, &argv, &tofree1, &tofree2) == FAIL) goto error; /* * For the GUI, when writing the output into the buffer and when reading * input from the buffer: Try using a pseudo-tty to get the stdin/stdout * of the executed command into the Vim window. Or use a pipe. */ if ((options & (SHELL_READ|SHELL_WRITE)) # ifdef FEAT_GUI || (gui.in_use && show_shell_mess) # endif ) { # ifdef FEAT_GUI /* * Try to open a master pty. * If this works, open the slave pty. * If the slave can't be opened, close the master pty. */ if (p_guipty && !(options & (SHELL_READ|SHELL_WRITE))) open_pty(&pty_master_fd, &pty_slave_fd, NULL, NULL); /* * If not opening a pty or it didn't work, try using pipes. */ if (pty_master_fd < 0) # endif { pipe_error = (pipe(fd_toshell) < 0); if (!pipe_error) // pipe create OK { pipe_error = (pipe(fd_fromshell) < 0); if (pipe_error) // pipe create failed { close(fd_toshell[0]); close(fd_toshell[1]); } } if (pipe_error) { msg_puts(_("\nCannot create pipes\n")); out_flush(); } } } if (!pipe_error) // pty or pipe opened or not used { SIGSET_DECL(curset) BLOCK_SIGNALS(&curset); pid = fork(); // maybe we should use vfork() if (pid == -1) { UNBLOCK_SIGNALS(&curset); msg_puts(_("\nCannot fork\n")); if ((options & (SHELL_READ|SHELL_WRITE)) # ifdef FEAT_GUI || (gui.in_use && show_shell_mess) # endif ) { # ifdef FEAT_GUI if (pty_master_fd >= 0) // close the pseudo tty { close(pty_master_fd); close(pty_slave_fd); } else // close the pipes # endif { close(fd_toshell[0]); close(fd_toshell[1]); close(fd_fromshell[0]); close(fd_fromshell[1]); } } } else if (pid == 0) // child { reset_signals(); // handle signals normally UNBLOCK_SIGNALS(&curset); # ifdef FEAT_JOB_CHANNEL if (ch_log_active()) { ch_log(NULL, "closing channel log in the child process"); ch_logfile((char_u *)"", (char_u *)""); } # endif if (!show_shell_mess || (options & SHELL_EXPAND)) { int fd; /* * Don't want to show any message from the shell. Can't just * close stdout and stderr though, because some systems will * break if you try to write to them after that, so we must * use dup() to replace them with something else -- webb * Connect stdin to /dev/null too, so ":n `cat`" doesn't hang, * waiting for input. */ fd = open("/dev/null", O_RDWR | O_EXTRA, 0); fclose(stdin); fclose(stdout); fclose(stderr); /* * If any of these open()'s and dup()'s fail, we just continue * anyway. It's not fatal, and on most systems it will make * no difference at all. On a few it will cause the execvp() * to exit with a non-zero status even when the completion * could be done, which is nothing too serious. If the open() * or dup() failed we'd just do the same thing ourselves * anyway -- webb */ if (fd >= 0) { vim_ignored = dup(fd); // To replace stdin (fd 0) vim_ignored = dup(fd); // To replace stdout (fd 1) vim_ignored = dup(fd); // To replace stderr (fd 2) // Don't need this now that we've duplicated it close(fd); } } else if ((options & (SHELL_READ|SHELL_WRITE)) # ifdef FEAT_GUI || gui.in_use # endif ) { # ifdef HAVE_SETSID // Create our own process group, so that the child and all its // children can be kill()ed. Don't do this when using pipes, // because stdin is not a tty, we would lose /dev/tty. if (p_stmp) { (void)setsid(); # if defined(SIGHUP) // When doing "!xterm&" and 'shell' is bash: the shell // will exit and send SIGHUP to all processes in its // group, killing the just started process. Ignore SIGHUP // to avoid that. (suggested by Simon Schubert) signal(SIGHUP, SIG_IGN); # endif } # endif # ifdef FEAT_GUI if (pty_slave_fd >= 0) { // push stream discipline modules if (options & SHELL_COOKED) setup_slavepty(pty_slave_fd); # ifdef TIOCSCTTY // Try to become controlling tty (probably doesn't work, // unless run by root) ioctl(pty_slave_fd, TIOCSCTTY, (char *)NULL); # endif } # endif set_default_child_environment(FALSE); /* * stderr is only redirected when using the GUI, so that a * program like gpg can still access the terminal to get a * passphrase using stderr. */ # ifdef FEAT_GUI if (pty_master_fd >= 0) { close(pty_master_fd); // close master side of pty // set up stdin/stdout/stderr for the child close(0); vim_ignored = dup(pty_slave_fd); close(1); vim_ignored = dup(pty_slave_fd); if (gui.in_use) { close(2); vim_ignored = dup(pty_slave_fd); } close(pty_slave_fd); // has been dupped, close it now } else # endif { // set up stdin for the child close(fd_toshell[1]); close(0); vim_ignored = dup(fd_toshell[0]); close(fd_toshell[0]); // set up stdout for the child close(fd_fromshell[0]); close(1); vim_ignored = dup(fd_fromshell[1]); close(fd_fromshell[1]); # ifdef FEAT_GUI if (gui.in_use) { // set up stderr for the child close(2); vim_ignored = dup(1); } # endif } } /* * There is no type cast for the argv, because the type may be * different on different machines. This may cause a warning * message with strict compilers, don't worry about it. * Call _exit() instead of exit() to avoid closing the connection * to the X server (esp. with GTK, which uses atexit()). */ execvp(argv[0], argv); _exit(EXEC_FAILED); // exec failed, return failure code } else // parent { /* * While child is running, ignore terminating signals. * Do catch CTRL-C, so that "got_int" is set. */ catch_signals(SIG_IGN, SIG_ERR); catch_int_signal(); UNBLOCK_SIGNALS(&curset); # ifdef FEAT_JOB_CHANNEL ++dont_check_job_ended; # endif /* * For the GUI we redirect stdin, stdout and stderr to our window. * This is also used to pipe stdin/stdout to/from the external * command. */ if ((options & (SHELL_READ|SHELL_WRITE)) # ifdef FEAT_GUI || (gui.in_use && show_shell_mess) # endif ) { # define BUFLEN 100 // length for buffer, pseudo tty limit is 128 char_u buffer[BUFLEN + 1]; int buffer_off = 0; // valid bytes in buffer[] char_u ta_buf[BUFLEN + 1]; // TypeAHead int ta_len = 0; // valid bytes in ta_buf[] int len; int p_more_save; int old_State; int c; int toshell_fd; int fromshell_fd; garray_T ga; int noread_cnt; # ifdef ELAPSED_FUNC elapsed_T start_tv; # endif # ifdef FEAT_GUI if (pty_master_fd >= 0) { fromshell_fd = pty_master_fd; toshell_fd = dup(pty_master_fd); } else # endif { close(fd_toshell[0]); close(fd_fromshell[1]); toshell_fd = fd_toshell[1]; fromshell_fd = fd_fromshell[0]; } /* * Write to the child if there are typed characters. * Read from the child if there are characters available. * Repeat the reading a few times if more characters are * available. Need to check for typed keys now and then, but * not too often (delays when no chars are available). * This loop is quit if no characters can be read from the pty * (WaitForChar detected special condition), or there are no * characters available and the child has exited. * Only check if the child has exited when there is no more * output. The child may exit before all the output has * been printed. * * Currently this busy loops! * This can probably dead-lock when the write blocks! */ p_more_save = p_more; p_more = FALSE; old_State = State; State = EXTERNCMD; // don't redraw at window resize if ((options & SHELL_WRITE) && toshell_fd >= 0) { // Fork a process that will write the lines to the // external program. if ((wpid = fork()) == -1) { msg_puts(_("\nCannot fork\n")); } else if (wpid == 0) // child { linenr_T lnum = curbuf->b_op_start.lnum; int written = 0; char_u *lp = ml_get(lnum); size_t l; close(fromshell_fd); for (;;) { l = STRLEN(lp + written); if (l == 0) len = 0; else if (lp[written] == NL) // NL -> NUL translation len = write(toshell_fd, "", (size_t)1); else { char_u *s = vim_strchr(lp + written, NL); len = write(toshell_fd, (char *)lp + written, s == NULL ? l : (size_t)(s - (lp + written))); } if (len == (int)l) { // Finished a line, add a NL, unless this line // should not have one. if (lnum != curbuf->b_op_end.lnum || (!curbuf->b_p_bin && curbuf->b_p_fixeol) || (lnum != curbuf->b_no_eol_lnum && (lnum != curbuf->b_ml.ml_line_count || curbuf->b_p_eol))) vim_ignored = write(toshell_fd, "\n", (size_t)1); ++lnum; if (lnum > curbuf->b_op_end.lnum) { // finished all the lines, close pipe close(toshell_fd); toshell_fd = -1; break; } lp = ml_get(lnum); written = 0; } else if (len > 0) written += len; } _exit(0); } else // parent { close(toshell_fd); toshell_fd = -1; } } if (options & SHELL_READ) ga_init2(&ga, 1, BUFLEN); noread_cnt = 0; # ifdef ELAPSED_FUNC ELAPSED_INIT(start_tv); # endif for (;;) { /* * Check if keys have been typed, write them to the child * if there are any. * Don't do this if we are expanding wild cards (would eat * typeahead). * Don't do this when filtering and terminal is in cooked * mode, the shell command will handle the I/O. Avoids * that a typed password is echoed for ssh or gpg command. * Don't get characters when the child has already * finished (wait_pid == 0). * Don't read characters unless we didn't get output for a * while (noread_cnt > 4), avoids that ":r !ls" eats * typeahead. */ len = 0; if (!(options & SHELL_EXPAND) && ((options & (SHELL_READ|SHELL_WRITE|SHELL_COOKED)) != (SHELL_READ|SHELL_WRITE|SHELL_COOKED) # ifdef FEAT_GUI || gui.in_use # endif ) && wait_pid == 0 && (ta_len > 0 || noread_cnt > 4)) { if (ta_len == 0) { // Get extra characters when we don't have any. // Reset the counter and timer. noread_cnt = 0; # ifdef ELAPSED_FUNC ELAPSED_INIT(start_tv); # endif len = ui_inchar(ta_buf, BUFLEN, 10L, 0); } if (ta_len > 0 || len > 0) { /* * For pipes: * Check for CTRL-C: send interrupt signal to child. * Check for CTRL-D: EOF, close pipe to child. */ if (len == 1 && (pty_master_fd < 0 || cmd != NULL)) { /* * Send SIGINT to the child's group or all * processes in our group. */ may_send_sigint(ta_buf[ta_len], pid, wpid); if (pty_master_fd < 0 && toshell_fd >= 0 && ta_buf[ta_len] == Ctrl_D) { close(toshell_fd); toshell_fd = -1; } } term_replace_bs_del_keycode(ta_buf, ta_len, len); /* * For pipes: echo the typed characters. * For a pty this does not seem to work. */ if (pty_master_fd < 0) { for (i = ta_len; i < ta_len + len; ++i) { if (ta_buf[i] == '\n' || ta_buf[i] == '\b') msg_putchar(ta_buf[i]); else if (has_mbyte) { int l = (*mb_ptr2len)(ta_buf + i); msg_outtrans_len(ta_buf + i, l); i += l - 1; } else msg_outtrans_len(ta_buf + i, 1); } windgoto(msg_row, msg_col); out_flush(); } ta_len += len; /* * Write the characters to the child, unless EOF has * been typed for pipes. Write one character at a * time, to avoid losing too much typeahead. * When writing buffer lines, drop the typed * characters (only check for CTRL-C). */ if (options & SHELL_WRITE) ta_len = 0; else if (toshell_fd >= 0) { len = write(toshell_fd, (char *)ta_buf, (size_t)1); if (len > 0) { ta_len -= len; mch_memmove(ta_buf, ta_buf + len, ta_len); } } } } if (got_int) { // CTRL-C sends a signal to the child, we ignore it // ourselves # ifdef HAVE_SETSID kill(-pid, SIGINT); # else kill(0, SIGINT); # endif if (wpid > 0) kill(wpid, SIGINT); got_int = FALSE; } /* * Check if the child has any characters to be printed. * Read them and write them to our window. Repeat this as * long as there is something to do, avoid the 10ms wait * for mch_inchar(), or sending typeahead characters to * the external process. * TODO: This should handle escape sequences, compatible * to some terminal (vt52?). */ ++noread_cnt; while (RealWaitForChar(fromshell_fd, 10L, NULL, NULL)) { len = read_eintr(fromshell_fd, buffer + buffer_off, (size_t)(BUFLEN - buffer_off) ); if (len <= 0) // end of file or error goto finished; noread_cnt = 0; if (options & SHELL_READ) { // Do NUL -> NL translation, append NL separated // lines to the current buffer. for (i = 0; i < len; ++i) { if (buffer[i] == NL) append_ga_line(&ga); else if (buffer[i] == NUL) ga_append(&ga, NL); else ga_append(&ga, buffer[i]); } } else if (has_mbyte) { int l; char_u *p; len += buffer_off; buffer[len] = NUL; // Check if the last character in buffer[] is // incomplete, keep these bytes for the next // round. for (p = buffer; p < buffer + len; p += l) { l = MB_CPTR2LEN(p); if (l == 0) l = 1; // NUL byte? else if (MB_BYTE2LEN(*p) != l) break; } if (p == buffer) // no complete character { // avoid getting stuck at an illegal byte if (len >= 12) ++p; else { buffer_off = len; continue; } } c = *p; *p = NUL; msg_puts((char *)buffer); if (p < buffer + len) { *p = c; buffer_off = (buffer + len) - p; mch_memmove(buffer, p, buffer_off); continue; } buffer_off = 0; } else { buffer[len] = NUL; msg_puts((char *)buffer); } windgoto(msg_row, msg_col); cursor_on(); out_flush(); if (got_int) break; # ifdef ELAPSED_FUNC if (wait_pid == 0) { long msec = ELAPSED_FUNC(start_tv); // Avoid that we keep looping here without // checking for a CTRL-C for a long time. Don't // break out too often to avoid losing typeahead. if (msec > 2000) { noread_cnt = 5; break; } } # endif } // If we already detected the child has finished, continue // reading output for a short while. Some text may be // buffered. if (wait_pid == pid) { if (noread_cnt < 5) continue; break; } /* * Check if the child still exists, before checking for * typed characters (otherwise we would lose typeahead). */ # ifdef __NeXT__ wait_pid = wait4(pid, &status, WNOHANG, (struct rusage *)0); # else wait_pid = waitpid(pid, &status, WNOHANG); # endif if ((wait_pid == (pid_t)-1 && errno == ECHILD) || (wait_pid == pid && WIFEXITED(status))) { // Don't break the loop yet, try reading more // characters from "fromshell_fd" first. When using // pipes there might still be something to read and // then we'll break the loop at the "break" above. wait_pid = pid; } else wait_pid = 0; # if defined(FEAT_XCLIPBOARD) && defined(FEAT_X11) // Handle any X events, e.g. serving the clipboard. clip_update(); # endif } finished: p_more = p_more_save; if (options & SHELL_READ) { if (ga.ga_len > 0) { append_ga_line(&ga); // remember that the NL was missing curbuf->b_no_eol_lnum = curwin->w_cursor.lnum; } else curbuf->b_no_eol_lnum = 0; ga_clear(&ga); } /* * Give all typeahead that wasn't used back to ui_inchar(). */ if (ta_len) ui_inchar_undo(ta_buf, ta_len); State = old_State; if (toshell_fd >= 0) close(toshell_fd); close(fromshell_fd); } # if defined(FEAT_XCLIPBOARD) && defined(FEAT_X11) else { long delay_msec = 1; out_str(T_CTE); // possibly disables modifyOtherKeys, so that // the system can recognize CTRL-C /* * Similar to the loop above, but only handle X events, no * I/O. */ for (;;) { if (got_int) { // CTRL-C sends a signal to the child, we ignore it // ourselves # ifdef HAVE_SETSID kill(-pid, SIGINT); # else kill(0, SIGINT); # endif got_int = FALSE; } # ifdef __NeXT__ wait_pid = wait4(pid, &status, WNOHANG, (struct rusage *)0); # else wait_pid = waitpid(pid, &status, WNOHANG); # endif if ((wait_pid == (pid_t)-1 && errno == ECHILD) || (wait_pid == pid && WIFEXITED(status))) { wait_pid = pid; break; } // Handle any X events, e.g. serving the clipboard. clip_update(); // Wait for 1 to 10 msec. 1 is faster but gives the child // less time, gradually wait longer. mch_delay(delay_msec, MCH_DELAY_IGNOREINPUT | MCH_DELAY_SETTMODE); if (++delay_msec > 10) delay_msec = 10; } out_str(T_CTI); // possibly enables modifyOtherKeys again } # endif /* * Wait until our child has exited. * Ignore wait() returning pids of other children and returning * because of some signal like SIGWINCH. * Don't wait if wait_pid was already set above, indicating the * child already exited. */ if (wait_pid != pid) wait_pid = wait4pid(pid, &status); # ifdef FEAT_GUI // Close slave side of pty. Only do this after the child has // exited, otherwise the child may hang when it tries to write on // the pty. if (pty_master_fd >= 0) close(pty_slave_fd); # endif // Make sure the child that writes to the external program is // dead. if (wpid > 0) { kill(wpid, SIGKILL); wait4pid(wpid, NULL); } # ifdef FEAT_JOB_CHANNEL --dont_check_job_ended; # endif /* * Set to raw mode right now, otherwise a CTRL-C after * catch_signals() will kill Vim. */ if (tmode == TMODE_RAW) settmode(TMODE_RAW); did_settmode = TRUE; set_signals(); if (WIFEXITED(status)) { // LINTED avoid "bitwise operation on signed value" retval = WEXITSTATUS(status); if (retval != 0 && !emsg_silent) { if (retval == EXEC_FAILED) { msg_puts(_("\nCannot execute shell ")); msg_outtrans(p_sh); msg_putchar('\n'); } else if (!(options & SHELL_SILENT)) { msg_puts(_("\nshell returned ")); msg_outnum((long)retval); msg_putchar('\n'); } } } else msg_puts(_("\nCommand terminated\n")); } } error: if (!did_settmode) if (tmode == TMODE_RAW) settmode(TMODE_RAW); // set to raw mode # ifdef FEAT_TITLE resettitle(); # endif vim_free(argv); vim_free(tofree1); vim_free(tofree2); return retval; } #endif // USE_SYSTEM int mch_call_shell( char_u *cmd, int options) // SHELL_*, see vim.h { #if defined(FEAT_GUI) && defined(FEAT_TERMINAL) if (gui.in_use && vim_strchr(p_go, GO_TERMINAL) != NULL) return mch_call_shell_terminal(cmd, options); #endif #ifdef USE_SYSTEM return mch_call_shell_system(cmd, options); #else return mch_call_shell_fork(cmd, options); #endif } #if defined(FEAT_JOB_CHANNEL) || defined(PROTO) void mch_job_start(char **argv, job_T *job, jobopt_T *options, int is_terminal) { pid_t pid; int fd_in[2] = {-1, -1}; // for stdin int fd_out[2] = {-1, -1}; // for stdout int fd_err[2] = {-1, -1}; // for stderr int pty_master_fd = -1; int pty_slave_fd = -1; channel_T *channel = NULL; int use_null_for_in = options->jo_io[PART_IN] == JIO_NULL; int use_null_for_out = options->jo_io[PART_OUT] == JIO_NULL; int use_null_for_err = options->jo_io[PART_ERR] == JIO_NULL; int use_file_for_in = options->jo_io[PART_IN] == JIO_FILE; int use_file_for_out = options->jo_io[PART_OUT] == JIO_FILE; int use_file_for_err = options->jo_io[PART_ERR] == JIO_FILE; int use_buffer_for_in = options->jo_io[PART_IN] == JIO_BUFFER; int use_out_for_err = options->jo_io[PART_ERR] == JIO_OUT; SIGSET_DECL(curset) if (use_out_for_err && use_null_for_out) use_null_for_err = TRUE; // default is to fail job->jv_status = JOB_FAILED; if (options->jo_pty && (!(use_file_for_in || use_null_for_in) || !(use_file_for_out || use_null_for_out) || !(use_out_for_err || use_file_for_err || use_null_for_err))) open_pty(&pty_master_fd, &pty_slave_fd, &job->jv_tty_out, &job->jv_tty_in); // TODO: without the channel feature connect the child to /dev/null? // Open pipes for stdin, stdout, stderr. if (use_file_for_in) { char_u *fname = options->jo_io_name[PART_IN]; fd_in[0] = mch_open((char *)fname, O_RDONLY, 0); if (fd_in[0] < 0) { semsg(_(e_notopen), fname); goto failed; } } else // When writing buffer lines to the input don't use the pty, so that // the pipe can be closed when all lines were written. if (!use_null_for_in && (pty_master_fd < 0 || use_buffer_for_in) && pipe(fd_in) < 0) goto failed; if (use_file_for_out) { char_u *fname = options->jo_io_name[PART_OUT]; fd_out[1] = mch_open((char *)fname, O_WRONLY | O_CREAT | O_TRUNC, 0644); if (fd_out[1] < 0) { semsg(_(e_notopen), fname); goto failed; } } else if (!use_null_for_out && pty_master_fd < 0 && pipe(fd_out) < 0) goto failed; if (use_file_for_err) { char_u *fname = options->jo_io_name[PART_ERR]; fd_err[1] = mch_open((char *)fname, O_WRONLY | O_CREAT | O_TRUNC, 0600); if (fd_err[1] < 0) { semsg(_(e_notopen), fname); goto failed; } } else if (!use_out_for_err && !use_null_for_err && pty_master_fd < 0 && pipe(fd_err) < 0) goto failed; if (!use_null_for_in || !use_null_for_out || !use_null_for_err) { if (options->jo_set & JO_CHANNEL) { channel = options->jo_channel; if (channel != NULL) ++channel->ch_refcount; } else channel = add_channel(); if (channel == NULL) goto failed; if (job->jv_tty_out != NULL) ch_log(channel, "using pty %s on fd %d", job->jv_tty_out, pty_master_fd); } BLOCK_SIGNALS(&curset); pid = fork(); // maybe we should use vfork() if (pid == -1) { // failed to fork UNBLOCK_SIGNALS(&curset); goto failed; } if (pid == 0) { int null_fd = -1; int stderr_works = TRUE; // child reset_signals(); // handle signals normally UNBLOCK_SIGNALS(&curset); # ifdef FEAT_JOB_CHANNEL if (ch_log_active()) // close the log file in the child ch_logfile((char_u *)"", (char_u *)""); # endif # ifdef HAVE_SETSID // Create our own process group, so that the child and all its // children can be kill()ed. Don't do this when using pipes, // because stdin is not a tty, we would lose /dev/tty. (void)setsid(); # endif # ifdef FEAT_TERMINAL if (options->jo_term_rows > 0) { char *term = (char *)T_NAME; #ifdef FEAT_GUI if (term_is_gui(T_NAME)) // In the GUI 'term' is not what we want, use $TERM. term = getenv("TERM"); #endif // Use 'term' or $TERM if it starts with "xterm", otherwise fall // back to "xterm" or "xterm-color". if (term == NULL || *term == NUL || STRNCMP(term, "xterm", 5) != 0) { if (t_colors >= 256) // TODO: should we check this name is supported? term = "xterm-256color"; else if (t_colors > 16) term = "xterm-color"; else term = "xterm"; } set_child_environment( (long)options->jo_term_rows, (long)options->jo_term_cols, term, is_terminal); } else # endif set_default_child_environment(is_terminal); if (options->jo_env != NULL) { dict_T *dict = options->jo_env; hashitem_T *hi; int todo = (int)dict->dv_hashtab.ht_used; for (hi = dict->dv_hashtab.ht_array; todo > 0; ++hi) if (!HASHITEM_EMPTY(hi)) { typval_T *item = &dict_lookup(hi)->di_tv; vim_setenv((char_u*)hi->hi_key, tv_get_string(item)); --todo; } } if (use_null_for_in || use_null_for_out || use_null_for_err) { null_fd = open("/dev/null", O_RDWR | O_EXTRA, 0); if (null_fd < 0) { perror("opening /dev/null failed"); _exit(OPEN_NULL_FAILED); } } if (pty_slave_fd >= 0) { // push stream discipline modules setup_slavepty(pty_slave_fd); # ifdef TIOCSCTTY // Try to become controlling tty (probably doesn't work, // unless run by root) ioctl(pty_slave_fd, TIOCSCTTY, (char *)NULL); # endif } // set up stdin for the child close(0); if (use_null_for_in && null_fd >= 0) vim_ignored = dup(null_fd); else if (fd_in[0] < 0) vim_ignored = dup(pty_slave_fd); else vim_ignored = dup(fd_in[0]); // set up stderr for the child close(2); if (use_null_for_err && null_fd >= 0) { vim_ignored = dup(null_fd); stderr_works = FALSE; } else if (use_out_for_err) vim_ignored = dup(fd_out[1]); else if (fd_err[1] < 0) vim_ignored = dup(pty_slave_fd); else vim_ignored = dup(fd_err[1]); // set up stdout for the child close(1); if (use_null_for_out && null_fd >= 0) vim_ignored = dup(null_fd); else if (fd_out[1] < 0) vim_ignored = dup(pty_slave_fd); else vim_ignored = dup(fd_out[1]); if (fd_in[0] >= 0) close(fd_in[0]); if (fd_in[1] >= 0) close(fd_in[1]); if (fd_out[0] >= 0) close(fd_out[0]); if (fd_out[1] >= 0) close(fd_out[1]); if (fd_err[0] >= 0) close(fd_err[0]); if (fd_err[1] >= 0) close(fd_err[1]); if (pty_master_fd >= 0) { close(pty_master_fd); // not used in the child close(pty_slave_fd); // was duped above } if (null_fd >= 0) close(null_fd); if (options->jo_cwd != NULL && mch_chdir((char *)options->jo_cwd) != 0) _exit(EXEC_FAILED); // See above for type of argv. execvp(argv[0], argv); if (stderr_works) perror("executing job failed"); # ifdef EXITFREE // calling free_all_mem() here causes problems. Ignore valgrind // reporting possibly leaked memory. # endif _exit(EXEC_FAILED); // exec failed, return failure code } // parent UNBLOCK_SIGNALS(&curset); job->jv_pid = pid; job->jv_status = JOB_STARTED; job->jv_channel = channel; // ch_refcount was set above if (pty_master_fd >= 0) close(pty_slave_fd); // not used in the parent // close child stdin, stdout and stderr if (fd_in[0] >= 0) close(fd_in[0]); if (fd_out[1] >= 0) close(fd_out[1]); if (fd_err[1] >= 0) close(fd_err[1]); if (channel != NULL) { int in_fd = INVALID_FD; int out_fd = INVALID_FD; int err_fd = INVALID_FD; if (!(use_file_for_in || use_null_for_in)) in_fd = fd_in[1] >= 0 ? fd_in[1] : pty_master_fd; if (!(use_file_for_out || use_null_for_out)) out_fd = fd_out[0] >= 0 ? fd_out[0] : pty_master_fd; // When using pty_master_fd only set it for stdout, do not duplicate // it for stderr, it only needs to be read once. if (!(use_out_for_err || use_file_for_err || use_null_for_err)) { if (fd_err[0] >= 0) err_fd = fd_err[0]; else if (out_fd != pty_master_fd) err_fd = pty_master_fd; } channel_set_pipes(channel, in_fd, out_fd, err_fd); channel_set_job(channel, job, options); } else { if (fd_in[1] >= 0) close(fd_in[1]); if (fd_out[0] >= 0) close(fd_out[0]); if (fd_err[0] >= 0) close(fd_err[0]); if (pty_master_fd >= 0) close(pty_master_fd); } // success! return; failed: channel_unref(channel); if (fd_in[0] >= 0) close(fd_in[0]); if (fd_in[1] >= 0) close(fd_in[1]); if (fd_out[0] >= 0) close(fd_out[0]); if (fd_out[1] >= 0) close(fd_out[1]); if (fd_err[0] >= 0) close(fd_err[0]); if (fd_err[1] >= 0) close(fd_err[1]); if (pty_master_fd >= 0) close(pty_master_fd); if (pty_slave_fd >= 0) close(pty_slave_fd); } static char_u * get_signal_name(int sig) { int i; char_u numbuf[NUMBUFLEN]; if (sig == SIGKILL) return vim_strsave((char_u *)"kill"); for (i = 0; signal_info[i].sig != -1; i++) if (sig == signal_info[i].sig) return strlow_save((char_u *)signal_info[i].name); vim_snprintf((char *)numbuf, NUMBUFLEN, "%d", sig); return vim_strsave(numbuf); } char * mch_job_status(job_T *job) { # ifdef HAVE_UNION_WAIT union wait status; # else int status = -1; # endif pid_t wait_pid = 0; # ifdef __NeXT__ wait_pid = wait4(job->jv_pid, &status, WNOHANG, (struct rusage *)0); # else wait_pid = waitpid(job->jv_pid, &status, WNOHANG); # endif if (wait_pid == -1) { // process must have exited if (job->jv_status < JOB_ENDED) ch_log(job->jv_channel, "Job no longer exists: %s", strerror(errno)); goto return_dead; } if (wait_pid == 0) return "run"; if (WIFEXITED(status)) { // LINTED avoid "bitwise operation on signed value" job->jv_exitval = WEXITSTATUS(status); if (job->jv_status < JOB_ENDED) ch_log(job->jv_channel, "Job exited with %d", job->jv_exitval); goto return_dead; } if (WIFSIGNALED(status)) { job->jv_exitval = -1; job->jv_termsig = get_signal_name(WTERMSIG(status)); if (job->jv_status < JOB_ENDED && job->jv_termsig != NULL) ch_log(job->jv_channel, "Job terminated by signal \"%s\"", job->jv_termsig); goto return_dead; } return "run"; return_dead: if (job->jv_status < JOB_ENDED) job->jv_status = JOB_ENDED; return "dead"; } job_T * mch_detect_ended_job(job_T *job_list) { # ifdef HAVE_UNION_WAIT union wait status; # else int status = -1; # endif pid_t wait_pid = 0; job_T *job; # ifndef USE_SYSTEM // Do not do this when waiting for a shell command to finish, we would get // the exit value here (and discard it), the exit value obtained there // would then be wrong. if (dont_check_job_ended > 0) return NULL; # endif # ifdef __NeXT__ wait_pid = wait4(-1, &status, WNOHANG, (struct rusage *)0); # else wait_pid = waitpid(-1, &status, WNOHANG); # endif if (wait_pid <= 0) // no process ended return NULL; for (job = job_list; job != NULL; job = job->jv_next) { if (job->jv_pid == wait_pid) { if (WIFEXITED(status)) // LINTED avoid "bitwise operation on signed value" job->jv_exitval = WEXITSTATUS(status); else if (WIFSIGNALED(status)) { job->jv_exitval = -1; job->jv_termsig = get_signal_name(WTERMSIG(status)); } if (job->jv_status < JOB_ENDED) { ch_log(job->jv_channel, "Job ended"); job->jv_status = JOB_ENDED; } return job; } } return NULL; } /* * Send a (deadly) signal to "job". * Return FAIL if "how" is not a valid name. */ int mch_signal_job(job_T *job, char_u *how) { int sig = -1; if (*how == NUL || STRCMP(how, "term") == 0) sig = SIGTERM; else if (STRCMP(how, "hup") == 0) sig = SIGHUP; else if (STRCMP(how, "quit") == 0) sig = SIGQUIT; else if (STRCMP(how, "int") == 0) sig = SIGINT; else if (STRCMP(how, "kill") == 0) sig = SIGKILL; #ifdef SIGWINCH else if (STRCMP(how, "winch") == 0) sig = SIGWINCH; #endif else if (isdigit(*how)) sig = atoi((char *)how); else return FAIL; // Never kill ourselves! if (job->jv_pid != 0) { // TODO: have an option to only kill the process, not the group? kill(-job->jv_pid, sig); kill(job->jv_pid, sig); } return OK; } /* * Clear the data related to "job". */ void mch_clear_job(job_T *job) { // call waitpid because child process may become zombie # ifdef __NeXT__ (void)wait4(job->jv_pid, NULL, WNOHANG, (struct rusage *)0); # else (void)waitpid(job->jv_pid, NULL, WNOHANG); # endif } #endif #if defined(FEAT_TERMINAL) || defined(PROTO) int mch_create_pty_channel(job_T *job, jobopt_T *options) { int pty_master_fd = -1; int pty_slave_fd = -1; channel_T *channel; open_pty(&pty_master_fd, &pty_slave_fd, &job->jv_tty_out, &job->jv_tty_in); if (pty_master_fd < 0 || pty_slave_fd < 0) return FAIL; close(pty_slave_fd); channel = add_channel(); if (channel == NULL) { close(pty_master_fd); return FAIL; } if (job->jv_tty_out != NULL) ch_log(channel, "using pty %s on fd %d", job->jv_tty_out, pty_master_fd); job->jv_channel = channel; // ch_refcount was set by add_channel() channel->ch_keep_open = TRUE; // Only set the pty_master_fd for stdout, do not duplicate it for stderr, // it only needs to be read once. channel_set_pipes(channel, pty_master_fd, pty_master_fd, INVALID_FD); channel_set_job(channel, job, options); return OK; } #endif /* * Check for CTRL-C typed by reading all available characters. * In cooked mode we should get SIGINT, no need to check. */ void mch_breakcheck(int force) { if ((mch_cur_tmode == TMODE_RAW || force) && RealWaitForChar(read_cmd_fd, 0L, NULL, NULL)) fill_input_buf(FALSE); } /* * Wait "msec" msec until a character is available from the mouse, keyboard, * from inbuf[]. * "msec" == -1 will block forever. * Invokes timer callbacks when needed. * When "ignore_input" is TRUE even check for pending input when input is * already available. * "interrupted" (if not NULL) is set to TRUE when no character is available * but something else needs to be done. * Returns TRUE when a character is available. * When a GUI is being used, this will never get called -- webb */ static int WaitForChar(long msec, int *interrupted, int ignore_input) { #ifdef FEAT_TIMERS return ui_wait_for_chars_or_timer( msec, WaitForCharOrMouse, interrupted, ignore_input) == OK; #else return WaitForCharOrMouse(msec, interrupted, ignore_input); #endif } /* * Wait "msec" msec until a character is available from the mouse or keyboard * or from inbuf[]. * "msec" == -1 will block forever. * for "ignore_input" see WaitForCharOr(). * "interrupted" (if not NULL) is set to TRUE when no character is available * but something else needs to be done. * When a GUI is being used, this will never get called -- webb */ static int WaitForCharOrMouse(long msec, int *interrupted, int ignore_input) { #ifdef FEAT_MOUSE_GPM int gpm_process_wanted; #endif #ifdef FEAT_XCLIPBOARD int rest; #endif int avail; if (!ignore_input && input_available()) // something in inbuf[] return 1; #if defined(FEAT_MOUSE_DEC) // May need to query the mouse position. if (WantQueryMouse) { WantQueryMouse = FALSE; if (!no_query_mouse_for_testing) mch_write((char_u *)IF_EB("\033[1'|", ESC_STR "[1'|"), 5); } #endif /* * For FEAT_MOUSE_GPM and FEAT_XCLIPBOARD we loop here to process mouse * events. This is a bit complicated, because they might both be defined. */ #if defined(FEAT_MOUSE_GPM) || defined(FEAT_XCLIPBOARD) # ifdef FEAT_XCLIPBOARD rest = 0; if (do_xterm_trace()) rest = msec; # endif do { # ifdef FEAT_XCLIPBOARD if (rest != 0) { msec = XT_TRACE_DELAY; if (rest >= 0 && rest < XT_TRACE_DELAY) msec = rest; if (rest >= 0) rest -= msec; } # endif # ifdef FEAT_SOUND_CANBERRA // Invoke any pending sound callbacks. if (has_sound_callback_in_queue()) invoke_sound_callback(); # endif # ifdef FEAT_MOUSE_GPM gpm_process_wanted = 0; avail = RealWaitForChar(read_cmd_fd, msec, &gpm_process_wanted, interrupted); if (!avail && !gpm_process_wanted) # else avail = RealWaitForChar(read_cmd_fd, msec, NULL, interrupted); if (!avail) # endif { if (!ignore_input && input_available()) return 1; # ifdef FEAT_XCLIPBOARD if (rest == 0 || !do_xterm_trace()) # endif break; } } while (FALSE # ifdef FEAT_MOUSE_GPM || (gpm_process_wanted && mch_gpm_process() == 0) # endif # ifdef FEAT_XCLIPBOARD || (!avail && rest != 0) # endif ) ; #else avail = RealWaitForChar(read_cmd_fd, msec, NULL, interrupted); #endif return avail; } #ifndef VMS /* * Wait "msec" msec until a character is available from file descriptor "fd". * "msec" == 0 will check for characters once. * "msec" == -1 will block until a character is available. * When a GUI is being used, this will not be used for input -- webb * Or when a Linux GPM mouse event is waiting. * Or when a clientserver message is on the queue. * "interrupted" (if not NULL) is set to TRUE when no character is available * but something else needs to be done. */ static int RealWaitForChar(int fd, long msec, int *check_for_gpm UNUSED, int *interrupted) { int ret; int result; #if defined(FEAT_XCLIPBOARD) || defined(USE_XSMP) || defined(FEAT_MZSCHEME) static int busy = FALSE; // May retry getting characters after an event was handled. # define MAY_LOOP # ifdef ELAPSED_FUNC // Remember at what time we started, so that we know how much longer we // should wait after being interrupted. long start_msec = msec; elapsed_T start_tv; if (msec > 0) ELAPSED_INIT(start_tv); # endif // Handle being called recursively. This may happen for the session // manager stuff, it may save the file, which does a breakcheck. if (busy) return 0; #endif #ifdef MAY_LOOP for (;;) #endif { #ifdef MAY_LOOP int finished = TRUE; // default is to 'loop' just once # ifdef FEAT_MZSCHEME int mzquantum_used = FALSE; # endif #endif #ifndef HAVE_SELECT // each channel may use in, out and err struct pollfd fds[6 + 3 * MAX_OPEN_CHANNELS]; int nfd; # ifdef FEAT_XCLIPBOARD int xterm_idx = -1; # endif # ifdef FEAT_MOUSE_GPM int gpm_idx = -1; # endif # ifdef USE_XSMP int xsmp_idx = -1; # endif int towait = (int)msec; # ifdef FEAT_MZSCHEME mzvim_check_threads(); if (mzthreads_allowed() && p_mzq > 0 && (msec < 0 || msec > p_mzq)) { towait = (int)p_mzq; // don't wait longer than 'mzquantum' mzquantum_used = TRUE; } # endif fds[0].fd = fd; fds[0].events = POLLIN; nfd = 1; # ifdef FEAT_XCLIPBOARD may_restore_clipboard(); if (xterm_Shell != (Widget)0) { xterm_idx = nfd; fds[nfd].fd = ConnectionNumber(xterm_dpy); fds[nfd].events = POLLIN; nfd++; } # endif # ifdef FEAT_MOUSE_GPM if (check_for_gpm != NULL && gpm_flag && gpm_fd >= 0) { gpm_idx = nfd; fds[nfd].fd = gpm_fd; fds[nfd].events = POLLIN; nfd++; } # endif # ifdef USE_XSMP if (xsmp_icefd != -1) { xsmp_idx = nfd; fds[nfd].fd = xsmp_icefd; fds[nfd].events = POLLIN; nfd++; } # endif #ifdef FEAT_JOB_CHANNEL nfd = channel_poll_setup(nfd, &fds, &towait); #endif if (interrupted != NULL) *interrupted = FALSE; ret = poll(fds, nfd, towait); result = ret > 0 && (fds[0].revents & POLLIN); if (result == 0 && interrupted != NULL && ret > 0) *interrupted = TRUE; # ifdef FEAT_MZSCHEME if (ret == 0 && mzquantum_used) // MzThreads scheduling is required and timeout occurred finished = FALSE; # endif # ifdef FEAT_XCLIPBOARD if (xterm_Shell != (Widget)0 && (fds[xterm_idx].revents & POLLIN)) { xterm_update(); // Maybe we should hand out clipboard if (--ret == 0 && !input_available()) // Try again finished = FALSE; } # endif # ifdef FEAT_MOUSE_GPM if (gpm_idx >= 0 && (fds[gpm_idx].revents & POLLIN)) *check_for_gpm = 1; # endif # ifdef USE_XSMP if (xsmp_idx >= 0 && (fds[xsmp_idx].revents & (POLLIN | POLLHUP))) { if (fds[xsmp_idx].revents & POLLIN) { busy = TRUE; xsmp_handle_requests(); busy = FALSE; } else if (fds[xsmp_idx].revents & POLLHUP) { if (p_verbose > 0) verb_msg(_("XSMP lost ICE connection")); xsmp_close(); } if (--ret == 0) finished = FALSE; // Try again } # endif #ifdef FEAT_JOB_CHANNEL // also call when ret == 0, we may be polling a keep-open channel if (ret >= 0) channel_poll_check(ret, &fds); #endif #else // HAVE_SELECT struct timeval tv; struct timeval *tvp; // These are static because they can take 8 Kbyte each and cause the // signal stack to run out with -O3. static fd_set rfds, wfds, efds; int maxfd; long towait = msec; # ifdef FEAT_MZSCHEME mzvim_check_threads(); if (mzthreads_allowed() && p_mzq > 0 && (msec < 0 || msec > p_mzq)) { towait = p_mzq; // don't wait longer than 'mzquantum' mzquantum_used = TRUE; } # endif if (towait >= 0) { tv.tv_sec = towait / 1000; tv.tv_usec = (towait % 1000) * (1000000/1000); tvp = &tv; } else tvp = NULL; /* * Select on ready for reading and exceptional condition (end of file). */ select_eintr: FD_ZERO(&rfds); FD_ZERO(&wfds); FD_ZERO(&efds); FD_SET(fd, &rfds); # if !defined(__QNX__) && !defined(__CYGWIN32__) // For QNX select() always returns 1 if this is set. Why? FD_SET(fd, &efds); # endif maxfd = fd; # ifdef FEAT_XCLIPBOARD may_restore_clipboard(); if (xterm_Shell != (Widget)0) { FD_SET(ConnectionNumber(xterm_dpy), &rfds); if (maxfd < ConnectionNumber(xterm_dpy)) maxfd = ConnectionNumber(xterm_dpy); // An event may have already been read but not handled. In // particularly, XFlush may cause this. xterm_update(); } # endif # ifdef FEAT_MOUSE_GPM if (check_for_gpm != NULL && gpm_flag && gpm_fd >= 0) { FD_SET(gpm_fd, &rfds); FD_SET(gpm_fd, &efds); if (maxfd < gpm_fd) maxfd = gpm_fd; } # endif # ifdef USE_XSMP if (xsmp_icefd != -1) { FD_SET(xsmp_icefd, &rfds); FD_SET(xsmp_icefd, &efds); if (maxfd < xsmp_icefd) maxfd = xsmp_icefd; } # endif # ifdef FEAT_JOB_CHANNEL maxfd = channel_select_setup(maxfd, &rfds, &wfds, &tv, &tvp); # endif if (interrupted != NULL) *interrupted = FALSE; ret = select(maxfd + 1, SELECT_TYPE_ARG234 &rfds, SELECT_TYPE_ARG234 &wfds, SELECT_TYPE_ARG234 &efds, tvp); result = ret > 0 && FD_ISSET(fd, &rfds); if (result) --ret; else if (interrupted != NULL && ret > 0) *interrupted = TRUE; # ifdef EINTR if (ret == -1 && errno == EINTR) { // Check whether window has been resized, EINTR may be caused by // SIGWINCH. if (do_resize) handle_resize(); // Interrupted by a signal, need to try again. We ignore msec // here, because we do want to check even after a timeout if // characters are available. Needed for reading output of an // external command after the process has finished. goto select_eintr; } # endif # ifdef __TANDEM if (ret == -1 && errno == ENOTSUP) { FD_ZERO(&rfds); FD_ZERO(&efds); ret = 0; } # endif # ifdef FEAT_MZSCHEME if (ret == 0 && mzquantum_used) // loop if MzThreads must be scheduled and timeout occurred finished = FALSE; # endif # ifdef FEAT_XCLIPBOARD if (ret > 0 && xterm_Shell != (Widget)0 && FD_ISSET(ConnectionNumber(xterm_dpy), &rfds)) { xterm_update(); // Maybe we should hand out clipboard // continue looping when we only got the X event and the input // buffer is empty if (--ret == 0 && !input_available()) { // Try again finished = FALSE; } } # endif # ifdef FEAT_MOUSE_GPM if (ret > 0 && gpm_flag && check_for_gpm != NULL && gpm_fd >= 0) { if (FD_ISSET(gpm_fd, &efds)) gpm_close(); else if (FD_ISSET(gpm_fd, &rfds)) *check_for_gpm = 1; } # endif # ifdef USE_XSMP if (ret > 0 && xsmp_icefd != -1) { if (FD_ISSET(xsmp_icefd, &efds)) { if (p_verbose > 0) verb_msg(_("XSMP lost ICE connection")); xsmp_close(); if (--ret == 0) finished = FALSE; // keep going if event was only one } else if (FD_ISSET(xsmp_icefd, &rfds)) { busy = TRUE; xsmp_handle_requests(); busy = FALSE; if (--ret == 0) finished = FALSE; // keep going if event was only one } } # endif #ifdef FEAT_JOB_CHANNEL // also call when ret == 0, we may be polling a keep-open channel if (ret >= 0) ret = channel_select_check(ret, &rfds, &wfds); #endif #endif // HAVE_SELECT #ifdef MAY_LOOP if (finished || msec == 0) break; # ifdef FEAT_CLIENTSERVER if (server_waiting()) break; # endif // We're going to loop around again, find out for how long if (msec > 0) { # ifdef ELAPSED_FUNC // Compute remaining wait time. msec = start_msec - ELAPSED_FUNC(start_tv); # else // Guess we got interrupted halfway. msec = msec / 2; # endif if (msec <= 0) break; // waited long enough } #endif } return result; } /* * Expand a path into all matching files and/or directories. Handles "*", * "?", "[a-z]", "**", etc. * "path" has backslashes before chars that are not to be expanded. * Returns the number of matches found. */ int mch_expandpath( garray_T *gap, char_u *path, int flags) // EW_* flags { return unix_expandpath(gap, path, 0, flags, FALSE); } /* * mch_expand_wildcards() - this code does wild-card pattern matching using * the shell * * return OK for success, FAIL for error (you may lose some memory) and put * an error message in *file. * * num_pat is number of input patterns * pat is array of pointers to input patterns * num_file is pointer to number of matched file names * file is pointer to array of pointers to matched file names */ #ifndef SEEK_SET # define SEEK_SET 0 #endif #ifndef SEEK_END # define SEEK_END 2 #endif #define SHELL_SPECIAL (char_u *)"\t \"&'$;<>()\\|" int mch_expand_wildcards( int num_pat, char_u **pat, int *num_file, char_u ***file, int flags) // EW_* flags { int i; size_t len; long llen; char_u *p; int dir; /* * This is the non-OS/2 implementation (really Unix). */ int j; char_u *tempname; char_u *command; FILE *fd; char_u *buffer; #define STYLE_ECHO 0 // use "echo", the default #define STYLE_GLOB 1 // use "glob", for csh #define STYLE_VIMGLOB 2 // use "vimglob", for Posix sh #define STYLE_PRINT 3 // use "print -N", for zsh #define STYLE_BT 4 // `cmd` expansion, execute the pattern // directly int shell_style = STYLE_ECHO; int check_spaces; static int did_find_nul = FALSE; int ampersand = FALSE; // vimglob() function to define for Posix shell static char *sh_vimglob_func = "vimglob() { while [ $# -ge 1 ]; do echo \"$1\"; shift; done }; vimglob >"; *num_file = 0; // default: no files found *file = NULL; /* * If there are no wildcards, just copy the names to allocated memory. * Saves a lot of time, because we don't have to start a new shell. */ if (!have_wildcard(num_pat, pat)) return save_patterns(num_pat, pat, num_file, file); # ifdef HAVE_SANDBOX // Don't allow any shell command in the sandbox. if (sandbox != 0 && check_secure()) return FAIL; # endif /* * Don't allow the use of backticks in secure and restricted mode. */ if (secure || restricted) for (i = 0; i < num_pat; ++i) if (vim_strchr(pat[i], '`') != NULL && (check_restricted() || check_secure())) return FAIL; /* * get a name for the temp file */ if ((tempname = vim_tempname('o', FALSE)) == NULL) { emsg(_(e_notmp)); return FAIL; } /* * Let the shell expand the patterns and write the result into the temp * file. * STYLE_BT: NL separated * If expanding `cmd` execute it directly. * STYLE_GLOB: NUL separated * If we use *csh, "glob" will work better than "echo". * STYLE_PRINT: NL or NUL separated * If we use *zsh, "print -N" will work better than "glob". * STYLE_VIMGLOB: NL separated * If we use *sh*, we define "vimglob()". * STYLE_ECHO: space separated. * A shell we don't know, stay safe and use "echo". */ if (num_pat == 1 && *pat[0] == '`' && (len = STRLEN(pat[0])) > 2 && *(pat[0] + len - 1) == '`') shell_style = STYLE_BT; else if ((len = STRLEN(p_sh)) >= 3) { if (STRCMP(p_sh + len - 3, "csh") == 0) shell_style = STYLE_GLOB; else if (STRCMP(p_sh + len - 3, "zsh") == 0) shell_style = STYLE_PRINT; } if (shell_style == STYLE_ECHO && strstr((char *)gettail(p_sh), "sh") != NULL) shell_style = STYLE_VIMGLOB; // Compute the length of the command. We need 2 extra bytes: for the // optional '&' and for the NUL. // Worst case: "unset nonomatch; print -N >" plus two is 29 len = STRLEN(tempname) + 29; if (shell_style == STYLE_VIMGLOB) len += STRLEN(sh_vimglob_func); for (i = 0; i < num_pat; ++i) { // Count the length of the patterns in the same way as they are put in // "command" below. #ifdef USE_SYSTEM len += STRLEN(pat[i]) + 3; // add space and two quotes #else ++len; // add space for (j = 0; pat[i][j] != NUL; ++j) { if (vim_strchr(SHELL_SPECIAL, pat[i][j]) != NULL) ++len; // may add a backslash ++len; } #endif } command = alloc(len); if (command == NULL) { // out of memory vim_free(tempname); return FAIL; } /* * Build the shell command: * - Set $nonomatch depending on EW_NOTFOUND (hopefully the shell * recognizes this). * - Add the shell command to print the expanded names. * - Add the temp file name. * - Add the file name patterns. */ if (shell_style == STYLE_BT) { // change `command; command& ` to (command; command ) STRCPY(command, "("); STRCAT(command, pat[0] + 1); // exclude first backtick p = command + STRLEN(command) - 1; *p-- = ')'; // remove last backtick while (p > command && VIM_ISWHITE(*p)) --p; if (*p == '&') // remove trailing '&' { ampersand = TRUE; *p = ' '; } STRCAT(command, ">"); } else { if (flags & EW_NOTFOUND) STRCPY(command, "set nonomatch; "); else STRCPY(command, "unset nonomatch; "); if (shell_style == STYLE_GLOB) STRCAT(command, "glob >"); else if (shell_style == STYLE_PRINT) STRCAT(command, "print -N >"); else if (shell_style == STYLE_VIMGLOB) STRCAT(command, sh_vimglob_func); else STRCAT(command, "echo >"); } STRCAT(command, tempname); if (shell_style != STYLE_BT) for (i = 0; i < num_pat; ++i) { // When using system() always add extra quotes, because the shell // is started twice. Otherwise put a backslash before special // characters, except inside ``. #ifdef USE_SYSTEM STRCAT(command, " \""); STRCAT(command, pat[i]); STRCAT(command, "\""); #else int intick = FALSE; p = command + STRLEN(command); *p++ = ' '; for (j = 0; pat[i][j] != NUL; ++j) { if (pat[i][j] == '`') intick = !intick; else if (pat[i][j] == '\\' && pat[i][j + 1] != NUL) { // Remove a backslash, take char literally. But keep // backslash inside backticks, before a special character // and before a backtick. if (intick || vim_strchr(SHELL_SPECIAL, pat[i][j + 1]) != NULL || pat[i][j + 1] == '`') *p++ = '\\'; ++j; } else if (!intick && ((flags & EW_KEEPDOLLAR) == 0 || pat[i][j] != '$') && vim_strchr(SHELL_SPECIAL, pat[i][j]) != NULL) // Put a backslash before a special character, but not // when inside ``. And not for $var when EW_KEEPDOLLAR is // set. *p++ = '\\'; // Copy one character. *p++ = pat[i][j]; } *p = NUL; #endif } if (flags & EW_SILENT) show_shell_mess = FALSE; if (ampersand) STRCAT(command, "&"); // put the '&' after the redirection /* * Using zsh -G: If a pattern has no matches, it is just deleted from * the argument list, otherwise zsh gives an error message and doesn't * expand any other pattern. */ if (shell_style == STYLE_PRINT) extra_shell_arg = (char_u *)"-G"; // Use zsh NULL_GLOB option /* * If we use -f then shell variables set in .cshrc won't get expanded. * vi can do it, so we will too, but it is only necessary if there is a "$" * in one of the patterns, otherwise we can still use the fast option. */ else if (shell_style == STYLE_GLOB && !have_dollars(num_pat, pat)) extra_shell_arg = (char_u *)"-f"; // Use csh fast option /* * execute the shell command */ i = call_shell(command, SHELL_EXPAND | SHELL_SILENT); // When running in the background, give it some time to create the temp // file, but don't wait for it to finish. if (ampersand) mch_delay(10L, MCH_DELAY_IGNOREINPUT); extra_shell_arg = NULL; // cleanup show_shell_mess = TRUE; vim_free(command); if (i != 0) // mch_call_shell() failed { mch_remove(tempname); vim_free(tempname); /* * With interactive completion, the error message is not printed. * However with USE_SYSTEM, I don't know how to turn off error messages * from the shell, so screen may still get messed up -- webb. */ #ifndef USE_SYSTEM if (!(flags & EW_SILENT)) #endif { redraw_later_clear(); // probably messed up screen msg_putchar('\n'); // clear bottom line quickly cmdline_row = Rows - 1; // continue on last line #ifdef USE_SYSTEM if (!(flags & EW_SILENT)) #endif { msg(_(e_wildexpand)); msg_start(); // don't overwrite this message } } // If a `cmd` expansion failed, don't list `cmd` as a match, even when // EW_NOTFOUND is given if (shell_style == STYLE_BT) return FAIL; goto notfound; } /* * read the names from the file into memory */ fd = fopen((char *)tempname, READBIN); if (fd == NULL) { // Something went wrong, perhaps a file name with a special char. if (!(flags & EW_SILENT)) { msg(_(e_wildexpand)); msg_start(); // don't overwrite this message } vim_free(tempname); goto notfound; } fseek(fd, 0L, SEEK_END); llen = ftell(fd); // get size of temp file fseek(fd, 0L, SEEK_SET); if (llen < 0) // just in case ftell() would fail buffer = NULL; else buffer = alloc(llen + 1); if (buffer == NULL) { // out of memory mch_remove(tempname); vim_free(tempname); fclose(fd); return FAIL; } len = llen; i = fread((char *)buffer, 1, len, fd); fclose(fd); mch_remove(tempname); if (i != (int)len) { // unexpected read error semsg(_(e_notread), tempname); vim_free(tempname); vim_free(buffer); return FAIL; } vim_free(tempname); # ifdef __CYGWIN__ // Translate <CR><NL> into <NL>. Caution, buffer may contain NUL. p = buffer; for (i = 0; i < (int)len; ++i) if (!(buffer[i] == CAR && buffer[i + 1] == NL)) *p++ = buffer[i]; len = p - buffer; # endif // file names are separated with Space if (shell_style == STYLE_ECHO) { buffer[len] = '\n'; // make sure the buffer ends in NL p = buffer; for (i = 0; *p != '\n'; ++i) // count number of entries { while (*p != ' ' && *p != '\n') ++p; p = skipwhite(p); // skip to next entry } } // file names are separated with NL else if (shell_style == STYLE_BT || shell_style == STYLE_VIMGLOB) { buffer[len] = NUL; // make sure the buffer ends in NUL p = buffer; for (i = 0; *p != NUL; ++i) // count number of entries { while (*p != '\n' && *p != NUL) ++p; if (*p != NUL) ++p; p = skipwhite(p); // skip leading white space } } // file names are separated with NUL else { /* * Some versions of zsh use spaces instead of NULs to separate * results. Only do this when there is no NUL before the end of the * buffer, otherwise we would never be able to use file names with * embedded spaces when zsh does use NULs. * When we found a NUL once, we know zsh is OK, set did_find_nul and * don't check for spaces again. */ check_spaces = FALSE; if (shell_style == STYLE_PRINT && !did_find_nul) { // If there is a NUL, set did_find_nul, else set check_spaces buffer[len] = NUL; if (len && (int)STRLEN(buffer) < (int)len) did_find_nul = TRUE; else check_spaces = TRUE; } /* * Make sure the buffer ends with a NUL. For STYLE_PRINT there * already is one, for STYLE_GLOB it needs to be added. */ if (len && buffer[len - 1] == NUL) --len; else buffer[len] = NUL; i = 0; for (p = buffer; p < buffer + len; ++p) if (*p == NUL || (*p == ' ' && check_spaces)) // count entry { ++i; *p = NUL; } if (len) ++i; // count last entry } if (i == 0) { /* * Can happen when using /bin/sh and typing ":e $NO_SUCH_VAR^I". * /bin/sh will happily expand it to nothing rather than returning an * error; and hey, it's good to check anyway -- webb. */ vim_free(buffer); goto notfound; } *num_file = i; *file = ALLOC_MULT(char_u *, i); if (*file == NULL) { // out of memory vim_free(buffer); return FAIL; } /* * Isolate the individual file names. */ p = buffer; for (i = 0; i < *num_file; ++i) { (*file)[i] = p; // Space or NL separates if (shell_style == STYLE_ECHO || shell_style == STYLE_BT || shell_style == STYLE_VIMGLOB) { while (!(shell_style == STYLE_ECHO && *p == ' ') && *p != '\n' && *p != NUL) ++p; if (p == buffer + len) // last entry *p = NUL; else { *p++ = NUL; p = skipwhite(p); // skip to next entry } } else // NUL separates { while (*p && p < buffer + len) // skip entry ++p; ++p; // skip NUL } } /* * Move the file names to allocated memory. */ for (j = 0, i = 0; i < *num_file; ++i) { // Require the files to exist. Helps when using /bin/sh if (!(flags & EW_NOTFOUND) && mch_getperm((*file)[i]) < 0) continue; // check if this entry should be included dir = (mch_isdir((*file)[i])); if ((dir && !(flags & EW_DIR)) || (!dir && !(flags & EW_FILE))) continue; // Skip files that are not executable if we check for that. if (!dir && (flags & EW_EXEC) && !mch_can_exe((*file)[i], NULL, !(flags & EW_SHELLCMD))) continue; p = alloc(STRLEN((*file)[i]) + 1 + dir); if (p) { STRCPY(p, (*file)[i]); if (dir) add_pathsep(p); // add '/' to a directory name (*file)[j++] = p; } } vim_free(buffer); *num_file = j; if (*num_file == 0) // rejected all entries { VIM_CLEAR(*file); goto notfound; } return OK; notfound: if (flags & EW_NOTFOUND) return save_patterns(num_pat, pat, num_file, file); return FAIL; } #endif // VMS static int save_patterns( int num_pat, char_u **pat, int *num_file, char_u ***file) { int i; char_u *s; *file = ALLOC_MULT(char_u *, num_pat); if (*file == NULL) return FAIL; for (i = 0; i < num_pat; i++) { s = vim_strsave(pat[i]); if (s != NULL) // Be compatible with expand_filename(): halve the number of // backslashes. backslash_halve(s); (*file)[i] = s; } *num_file = num_pat; return OK; } /* * Return TRUE if the string "p" contains a wildcard that mch_expandpath() can * expand. */ int mch_has_exp_wildcard(char_u *p) { for ( ; *p; MB_PTR_ADV(p)) { if (*p == '\\' && p[1] != NUL) ++p; else if (vim_strchr((char_u *) #ifdef VMS "*?%" #else "*?[{'" #endif , *p) != NULL) return TRUE; } return FALSE; } /* * Return TRUE if the string "p" contains a wildcard. * Don't recognize '~' at the end as a wildcard. */ int mch_has_wildcard(char_u *p) { for ( ; *p; MB_PTR_ADV(p)) { if (*p == '\\' && p[1] != NUL) ++p; else if (vim_strchr((char_u *) #ifdef VMS "*?%$" #else "*?[{`'$" #endif , *p) != NULL || (*p == '~' && p[1] != NUL)) return TRUE; } return FALSE; } static int have_wildcard(int num, char_u **file) { int i; for (i = 0; i < num; i++) if (mch_has_wildcard(file[i])) return 1; return 0; } static int have_dollars(int num, char_u **file) { int i; for (i = 0; i < num; i++) if (vim_strchr(file[i], '$') != NULL) return TRUE; return FALSE; } #if !defined(HAVE_RENAME) || defined(PROTO) /* * Scaled-down version of rename(), which is missing in Xenix. * This version can only move regular files and will fail if the * destination exists. */ int mch_rename(const char *src, const char *dest) { struct stat st; if (stat(dest, &st) >= 0) // fail if destination exists return -1; if (link(src, dest) != 0) // link file to new name return -1; if (mch_remove(src) == 0) // delete link to old name return 0; return -1; } #endif // !HAVE_RENAME #if defined(FEAT_MOUSE_GPM) || defined(PROTO) /* * Initializes connection with gpm (if it isn't already opened) * Return 1 if succeeded (or connection already opened), 0 if failed */ static int gpm_open(void) { static Gpm_Connect gpm_connect; // Must it be kept till closing ? if (!gpm_flag) { gpm_connect.eventMask = (GPM_UP | GPM_DRAG | GPM_DOWN); gpm_connect.defaultMask = ~GPM_HARD; // Default handling for mouse move gpm_connect.minMod = 0; // Handle any modifier keys gpm_connect.maxMod = 0xffff; if (Gpm_Open(&gpm_connect, 0) > 0) { // gpm library tries to handling TSTP causes // problems. Anyways, we close connection to Gpm whenever // we are going to suspend or starting an external process // so we shouldn't have problem with this # ifdef SIGTSTP signal(SIGTSTP, restricted ? SIG_IGN : SIG_DFL); # endif return 1; // succeed } if (gpm_fd == -2) Gpm_Close(); // We don't want to talk to xterm via gpm return 0; } return 1; // already open } /* * Returns TRUE if the GPM mouse is enabled. */ int gpm_enabled(void) { return gpm_flag && gpm_fd >= 0; } /* * Closes connection to gpm */ static void gpm_close(void) { if (gpm_enabled()) Gpm_Close(); } /* * Reads gpm event and adds special keys to input buf. Returns length of * generated key sequence. * This function is styled after gui_send_mouse_event(). */ static int mch_gpm_process(void) { int button; static Gpm_Event gpm_event; char_u string[6]; int_u vim_modifiers; int row,col; unsigned char buttons_mask; unsigned char gpm_modifiers; static unsigned char old_buttons = 0; Gpm_GetEvent(&gpm_event); #ifdef FEAT_GUI // Don't put events in the input queue now. if (hold_gui_events) return 0; #endif row = gpm_event.y - 1; col = gpm_event.x - 1; string[0] = ESC; // Our termcode string[1] = 'M'; string[2] = 'G'; switch (GPM_BARE_EVENTS(gpm_event.type)) { case GPM_DRAG: string[3] = MOUSE_DRAG; break; case GPM_DOWN: buttons_mask = gpm_event.buttons & ~old_buttons; old_buttons = gpm_event.buttons; switch (buttons_mask) { case GPM_B_LEFT: button = MOUSE_LEFT; break; case GPM_B_MIDDLE: button = MOUSE_MIDDLE; break; case GPM_B_RIGHT: button = MOUSE_RIGHT; break; default: return 0; // Don't know what to do. Can more than one button be // reported in one event? } string[3] = (char_u)(button | 0x20); SET_NUM_MOUSE_CLICKS(string[3], gpm_event.clicks + 1); break; case GPM_UP: string[3] = MOUSE_RELEASE; old_buttons &= ~gpm_event.buttons; break; default: return 0; } // This code is based on gui_x11_mouse_cb in gui_x11.c gpm_modifiers = gpm_event.modifiers; vim_modifiers = 0x0; // I ignore capslock stats. Aren't we all just hate capslock mixing with // Vim commands ? Besides, gpm_event.modifiers is unsigned char, and // K_CAPSSHIFT is defined 8, so it probably isn't even reported if (gpm_modifiers & ((1 << KG_SHIFT) | (1 << KG_SHIFTR) | (1 << KG_SHIFTL))) vim_modifiers |= MOUSE_SHIFT; if (gpm_modifiers & ((1 << KG_CTRL) | (1 << KG_CTRLR) | (1 << KG_CTRLL))) vim_modifiers |= MOUSE_CTRL; if (gpm_modifiers & ((1 << KG_ALT) | (1 << KG_ALTGR))) vim_modifiers |= MOUSE_ALT; string[3] |= vim_modifiers; string[4] = (char_u)(col + ' ' + 1); string[5] = (char_u)(row + ' ' + 1); add_to_input_buf(string, 6); return 6; } #endif // FEAT_MOUSE_GPM #ifdef FEAT_SYSMOUSE /* * Initialize connection with sysmouse. * Let virtual console inform us with SIGUSR2 for pending sysmouse * output, any sysmouse output than will be processed via sig_sysmouse(). * Return OK if succeeded, FAIL if failed. */ static int sysmouse_open(void) { struct mouse_info mouse; mouse.operation = MOUSE_MODE; mouse.u.mode.mode = 0; mouse.u.mode.signal = SIGUSR2; if (ioctl(1, CONS_MOUSECTL, &mouse) != -1) { signal(SIGUSR2, (RETSIGTYPE (*)())sig_sysmouse); mouse.operation = MOUSE_SHOW; ioctl(1, CONS_MOUSECTL, &mouse); return OK; } return FAIL; } /* * Stop processing SIGUSR2 signals, and also make sure that * virtual console do not send us any sysmouse related signal. */ static void sysmouse_close(void) { struct mouse_info mouse; signal(SIGUSR2, restricted ? SIG_IGN : SIG_DFL); mouse.operation = MOUSE_MODE; mouse.u.mode.mode = 0; mouse.u.mode.signal = 0; ioctl(1, CONS_MOUSECTL, &mouse); } /* * Gets info from sysmouse and adds special keys to input buf. */ static RETSIGTYPE sig_sysmouse SIGDEFARG(sigarg) { struct mouse_info mouse; struct video_info video; char_u string[6]; int row, col; int button; int buttons; static int oldbuttons = 0; #ifdef FEAT_GUI // Don't put events in the input queue now. if (hold_gui_events) return; #endif mouse.operation = MOUSE_GETINFO; if (ioctl(1, FBIO_GETMODE, &video.vi_mode) != -1 && ioctl(1, FBIO_MODEINFO, &video) != -1 && ioctl(1, CONS_MOUSECTL, &mouse) != -1 && video.vi_cheight > 0 && video.vi_cwidth > 0) { row = mouse.u.data.y / video.vi_cheight; col = mouse.u.data.x / video.vi_cwidth; buttons = mouse.u.data.buttons; string[0] = ESC; // Our termcode string[1] = 'M'; string[2] = 'S'; if (oldbuttons == buttons && buttons != 0) { button = MOUSE_DRAG; } else { switch (buttons) { case 0: button = MOUSE_RELEASE; break; case 1: button = MOUSE_LEFT; break; case 2: button = MOUSE_MIDDLE; break; case 4: button = MOUSE_RIGHT; break; default: return; } oldbuttons = buttons; } string[3] = (char_u)(button); string[4] = (char_u)(col + ' ' + 1); string[5] = (char_u)(row + ' ' + 1); add_to_input_buf(string, 6); } return; } #endif // FEAT_SYSMOUSE #if defined(FEAT_LIBCALL) || defined(PROTO) typedef char_u * (*STRPROCSTR)(char_u *); typedef char_u * (*INTPROCSTR)(int); typedef int (*STRPROCINT)(char_u *); typedef int (*INTPROCINT)(int); /* * Call a DLL routine which takes either a string or int param * and returns an allocated string. */ int mch_libcall( char_u *libname, char_u *funcname, char_u *argstring, // NULL when using a argint int argint, char_u **string_result, // NULL when using number_result int *number_result) { # if defined(USE_DLOPEN) void *hinstLib; char *dlerr = NULL; # else shl_t hinstLib; # endif STRPROCSTR ProcAdd; INTPROCSTR ProcAddI; char_u *retval_str = NULL; int retval_int = 0; int success = FALSE; /* * Get a handle to the DLL module. */ # if defined(USE_DLOPEN) // First clear any error, it's not cleared by the dlopen() call. (void)dlerror(); hinstLib = dlopen((char *)libname, RTLD_LAZY # ifdef RTLD_LOCAL | RTLD_LOCAL # endif ); if (hinstLib == NULL) { // "dlerr" must be used before dlclose() dlerr = (char *)dlerror(); if (dlerr != NULL) semsg(_("dlerror = \"%s\""), dlerr); } # else hinstLib = shl_load((const char*)libname, BIND_IMMEDIATE|BIND_VERBOSE, 0L); # endif // If the handle is valid, try to get the function address. if (hinstLib != NULL) { # ifdef USING_SETJMP /* * Catch a crash when calling the library function. For example when * using a number where a string pointer is expected. */ mch_startjmp(); if (SETJMP(lc_jump_env) != 0) { success = FALSE; # if defined(USE_DLOPEN) dlerr = NULL; # endif mch_didjmp(); } else # endif { retval_str = NULL; retval_int = 0; if (argstring != NULL) { # if defined(USE_DLOPEN) *(void **)(&ProcAdd) = dlsym(hinstLib, (const char *)funcname); dlerr = (char *)dlerror(); # else if (shl_findsym(&hinstLib, (const char *)funcname, TYPE_PROCEDURE, (void *)&ProcAdd) < 0) ProcAdd = NULL; # endif if ((success = (ProcAdd != NULL # if defined(USE_DLOPEN) && dlerr == NULL # endif ))) { if (string_result == NULL) retval_int = ((STRPROCINT)(void *)ProcAdd)(argstring); else retval_str = (ProcAdd)(argstring); } } else { # if defined(USE_DLOPEN) *(void **)(&ProcAddI) = dlsym(hinstLib, (const char *)funcname); dlerr = (char *)dlerror(); # else if (shl_findsym(&hinstLib, (const char *)funcname, TYPE_PROCEDURE, (void *)&ProcAddI) < 0) ProcAddI = NULL; # endif if ((success = (ProcAddI != NULL # if defined(USE_DLOPEN) && dlerr == NULL # endif ))) { if (string_result == NULL) retval_int = ((INTPROCINT)(void *)ProcAddI)(argint); else retval_str = (ProcAddI)(argint); } } // Save the string before we free the library. // Assume that a "1" or "-1" result is an illegal pointer. if (string_result == NULL) *number_result = retval_int; else if (retval_str != NULL && retval_str != (char_u *)1 && retval_str != (char_u *)-1) *string_result = vim_strsave(retval_str); } # ifdef USING_SETJMP mch_endjmp(); # ifdef SIGHASARG if (lc_signal != 0) { int i; // try to find the name of this signal for (i = 0; signal_info[i].sig != -1; i++) if (lc_signal == signal_info[i].sig) break; semsg("E368: got SIG%s in libcall()", signal_info[i].name); } # endif # endif # if defined(USE_DLOPEN) // "dlerr" must be used before dlclose() if (dlerr != NULL) semsg(_("dlerror = \"%s\""), dlerr); // Free the DLL module. (void)dlclose(hinstLib); # else (void)shl_unload(hinstLib); # endif } if (!success) { semsg(_(e_libcall), funcname); return FAIL; } return OK; } #endif #if (defined(FEAT_X11) && defined(FEAT_XCLIPBOARD)) || defined(PROTO) static int xterm_trace = -1; // default: disabled static int xterm_button; /* * Setup a dummy window for X selections in a terminal. */ void setup_term_clip(void) { int z = 0; char *strp = ""; Widget AppShell; if (!x_connect_to_server()) return; open_app_context(); if (app_context != NULL && xterm_Shell == (Widget)0) { int (*oldhandler)(); # if defined(USING_SETJMP) int (*oldIOhandler)(); # endif # ifdef ELAPSED_FUNC elapsed_T start_tv; if (p_verbose > 0) ELAPSED_INIT(start_tv); # endif // Ignore X errors while opening the display oldhandler = XSetErrorHandler(x_error_check); # if defined(USING_SETJMP) // Ignore X IO errors while opening the display oldIOhandler = XSetIOErrorHandler(x_IOerror_check); mch_startjmp(); if (SETJMP(lc_jump_env) != 0) { mch_didjmp(); xterm_dpy = NULL; } else # endif { xterm_dpy = XtOpenDisplay(app_context, xterm_display, "vim_xterm", "Vim_xterm", NULL, 0, &z, &strp); if (xterm_dpy != NULL) xterm_dpy_retry_count = 0; # if defined(USING_SETJMP) mch_endjmp(); # endif } # if defined(USING_SETJMP) // Now handle X IO errors normally. (void)XSetIOErrorHandler(oldIOhandler); # endif // Now handle X errors normally. (void)XSetErrorHandler(oldhandler); if (xterm_dpy == NULL) { if (p_verbose > 0) verb_msg(_("Opening the X display failed")); return; } // Catch terminating error of the X server connection. (void)XSetIOErrorHandler(x_IOerror_handler); # ifdef ELAPSED_FUNC if (p_verbose > 0) { verbose_enter(); xopen_message(ELAPSED_FUNC(start_tv)); verbose_leave(); } # endif // Create a Shell to make converters work. AppShell = XtVaAppCreateShell("vim_xterm", "Vim_xterm", applicationShellWidgetClass, xterm_dpy, NULL); if (AppShell == (Widget)0) return; xterm_Shell = XtVaCreatePopupShell("VIM", topLevelShellWidgetClass, AppShell, XtNmappedWhenManaged, 0, XtNwidth, 1, XtNheight, 1, NULL); if (xterm_Shell == (Widget)0) return; x11_setup_atoms(xterm_dpy); x11_setup_selection(xterm_Shell); if (x11_display == NULL) x11_display = xterm_dpy; XtRealizeWidget(xterm_Shell); XSync(xterm_dpy, False); xterm_update(); } if (xterm_Shell != (Widget)0) { clip_init(TRUE); if (x11_window == 0 && (strp = getenv("WINDOWID")) != NULL) x11_window = (Window)atol(strp); // Check if $WINDOWID is valid. if (test_x11_window(xterm_dpy) == FAIL) x11_window = 0; if (x11_window != 0) xterm_trace = 0; } } void start_xterm_trace(int button) { if (x11_window == 0 || xterm_trace < 0 || xterm_Shell == (Widget)0) return; xterm_trace = 1; xterm_button = button; do_xterm_trace(); } void stop_xterm_trace(void) { if (xterm_trace < 0) return; xterm_trace = 0; } /* * Query the xterm pointer and generate mouse termcodes if necessary * return TRUE if dragging is active, else FALSE */ static int do_xterm_trace(void) { Window root, child; int root_x, root_y; int win_x, win_y; int row, col; int_u mask_return; char_u buf[50]; char_u *strp; long got_hints; static char_u *mouse_code; static char_u mouse_name[2] = {KS_MOUSE, KE_FILLER}; static int prev_row = 0, prev_col = 0; static XSizeHints xterm_hints; if (xterm_trace <= 0) return FALSE; if (xterm_trace == 1) { // Get the hints just before tracking starts. The font size might // have changed recently. if (!XGetWMNormalHints(xterm_dpy, x11_window, &xterm_hints, &got_hints) || !(got_hints & PResizeInc) || xterm_hints.width_inc <= 1 || xterm_hints.height_inc <= 1) { xterm_trace = -1; // Not enough data -- disable tracing return FALSE; } // Rely on the same mouse code for the duration of this mouse_code = find_termcode(mouse_name); prev_row = mouse_row; prev_col = mouse_col; xterm_trace = 2; // Find the offset of the chars, there might be a scrollbar on the // left of the window and/or a menu on the top (eterm etc.) XQueryPointer(xterm_dpy, x11_window, &root, &child, &root_x, &root_y, &win_x, &win_y, &mask_return); xterm_hints.y = win_y - (xterm_hints.height_inc * mouse_row) - (xterm_hints.height_inc / 2); if (xterm_hints.y <= xterm_hints.height_inc / 2) xterm_hints.y = 2; xterm_hints.x = win_x - (xterm_hints.width_inc * mouse_col) - (xterm_hints.width_inc / 2); if (xterm_hints.x <= xterm_hints.width_inc / 2) xterm_hints.x = 2; return TRUE; } if (mouse_code == NULL || STRLEN(mouse_code) > 45) { xterm_trace = 0; return FALSE; } XQueryPointer(xterm_dpy, x11_window, &root, &child, &root_x, &root_y, &win_x, &win_y, &mask_return); row = check_row((win_y - xterm_hints.y) / xterm_hints.height_inc); col = check_col((win_x - xterm_hints.x) / xterm_hints.width_inc); if (row == prev_row && col == prev_col) return TRUE; STRCPY(buf, mouse_code); strp = buf + STRLEN(buf); *strp++ = (xterm_button | MOUSE_DRAG) & ~0x20; *strp++ = (char_u)(col + ' ' + 1); *strp++ = (char_u)(row + ' ' + 1); *strp = 0; add_to_input_buf(buf, STRLEN(buf)); prev_row = row; prev_col = col; return TRUE; } # if defined(FEAT_GUI) || defined(FEAT_XCLIPBOARD) || defined(PROTO) /* * Destroy the display, window and app_context. Required for GTK. */ void clear_xterm_clip(void) { if (xterm_Shell != (Widget)0) { XtDestroyWidget(xterm_Shell); xterm_Shell = (Widget)0; } if (xterm_dpy != NULL) { # if 0 // Lesstif and Solaris crash here, lose some memory XtCloseDisplay(xterm_dpy); # endif if (x11_display == xterm_dpy) x11_display = NULL; xterm_dpy = NULL; } # if 0 if (app_context != (XtAppContext)NULL) { // Lesstif and Solaris crash here, lose some memory XtDestroyApplicationContext(app_context); app_context = (XtAppContext)NULL; } # endif } # endif /* * Catch up with GUI or X events. */ static void clip_update(void) { # ifdef FEAT_GUI if (gui.in_use) gui_mch_update(); else # endif if (xterm_Shell != (Widget)0) xterm_update(); } /* * Catch up with any queued X events. This may put keyboard input into the * input buffer, call resize call-backs, trigger timers etc. If there is * nothing in the X event queue (& no timers pending), then we return * immediately. */ static void xterm_update(void) { XEvent event; for (;;) { XtInputMask mask = XtAppPending(app_context); if (mask == 0 || vim_is_input_buf_full()) break; if (mask & XtIMXEvent) { // There is an event to process. XtAppNextEvent(app_context, &event); #ifdef FEAT_CLIENTSERVER { XPropertyEvent *e = (XPropertyEvent *)&event; if (e->type == PropertyNotify && e->window == commWindow && e->atom == commProperty && e->state == PropertyNewValue) serverEventProc(xterm_dpy, &event, 0); } #endif XtDispatchEvent(&event); } else { // There is something else than an event to process. XtAppProcessEvent(app_context, mask); } } } int clip_xterm_own_selection(Clipboard_T *cbd) { if (xterm_Shell != (Widget)0) return clip_x11_own_selection(xterm_Shell, cbd); return FAIL; } void clip_xterm_lose_selection(Clipboard_T *cbd) { if (xterm_Shell != (Widget)0) clip_x11_lose_selection(xterm_Shell, cbd); } void clip_xterm_request_selection(Clipboard_T *cbd) { if (xterm_Shell != (Widget)0) clip_x11_request_selection(xterm_Shell, xterm_dpy, cbd); } void clip_xterm_set_selection(Clipboard_T *cbd) { clip_x11_set_selection(cbd); } #endif #if defined(USE_XSMP) || defined(PROTO) /* * Code for X Session Management Protocol. */ # if defined(FEAT_GUI) && defined(USE_XSMP_INTERACT) /* * This is our chance to ask the user if they want to save, * or abort the logout */ static void xsmp_handle_interaction(SmcConn smc_conn, SmPointer client_data UNUSED) { cmdmod_T save_cmdmod; int cancel_shutdown = False; save_cmdmod = cmdmod; cmdmod.confirm = TRUE; if (check_changed_any(FALSE, FALSE)) // Mustn't logout cancel_shutdown = True; cmdmod = save_cmdmod; setcursor(); // position cursor out_flush(); // Done interaction SmcInteractDone(smc_conn, cancel_shutdown); // Finish off // Only end save-yourself here if we're not cancelling shutdown; // we'll get a cancelled callback later in which we'll end it. // Hopefully get around glitchy SMs (like GNOME-1) if (!cancel_shutdown) { xsmp.save_yourself = False; SmcSaveYourselfDone(smc_conn, True); } } # endif /* * Callback that starts save-yourself. */ static void xsmp_handle_save_yourself( SmcConn smc_conn, SmPointer client_data UNUSED, int save_type UNUSED, Bool shutdown, int interact_style UNUSED, Bool fast UNUSED) { // Handle already being in saveyourself if (xsmp.save_yourself) SmcSaveYourselfDone(smc_conn, True); xsmp.save_yourself = True; xsmp.shutdown = shutdown; // First up, preserve all files out_flush(); ml_sync_all(FALSE, FALSE); // preserve all swap files if (p_verbose > 0) verb_msg(_("XSMP handling save-yourself request")); # if defined(FEAT_GUI) && defined(USE_XSMP_INTERACT) // Now see if we can ask about unsaved files if (shutdown && !fast && gui.in_use) // Need to interact with user, but need SM's permission SmcInteractRequest(smc_conn, SmDialogError, xsmp_handle_interaction, client_data); else # endif { // Can stop the cycle here SmcSaveYourselfDone(smc_conn, True); xsmp.save_yourself = False; } } /* * Callback to warn us of imminent death. */ static void xsmp_die(SmcConn smc_conn UNUSED, SmPointer client_data UNUSED) { xsmp_close(); // quit quickly leaving swapfiles for modified buffers behind getout_preserve_modified(0); } /* * Callback to tell us that save-yourself has completed. */ static void xsmp_save_complete( SmcConn smc_conn UNUSED, SmPointer client_data UNUSED) { xsmp.save_yourself = False; } /* * Callback to tell us that an instigated shutdown was cancelled * (maybe even by us) */ static void xsmp_shutdown_cancelled( SmcConn smc_conn, SmPointer client_data UNUSED) { if (xsmp.save_yourself) SmcSaveYourselfDone(smc_conn, True); xsmp.save_yourself = False; xsmp.shutdown = False; } /* * Callback to tell us that a new ICE connection has been established. */ static void xsmp_ice_connection( IceConn iceConn, IcePointer clientData UNUSED, Bool opening, IcePointer *watchData UNUSED) { // Intercept creation of ICE connection fd if (opening) { xsmp_icefd = IceConnectionNumber(iceConn); IceRemoveConnectionWatch(xsmp_ice_connection, NULL); } } // Handle any ICE processing that's required; return FAIL if SM lost int xsmp_handle_requests(void) { Bool rep; if (IceProcessMessages(xsmp.iceconn, NULL, &rep) == IceProcessMessagesIOError) { // Lost ICE if (p_verbose > 0) verb_msg(_("XSMP lost ICE connection")); xsmp_close(); return FAIL; } else return OK; } static int dummy; // Set up X Session Management Protocol void xsmp_init(void) { char errorstring[80]; SmcCallbacks smcallbacks; #if 0 SmPropValue smname; SmProp smnameprop; SmProp *smprops[1]; #endif if (p_verbose > 0) verb_msg(_("XSMP opening connection")); xsmp.save_yourself = xsmp.shutdown = False; // Set up SM callbacks - must have all, even if they're not used smcallbacks.save_yourself.callback = xsmp_handle_save_yourself; smcallbacks.save_yourself.client_data = NULL; smcallbacks.die.callback = xsmp_die; smcallbacks.die.client_data = NULL; smcallbacks.save_complete.callback = xsmp_save_complete; smcallbacks.save_complete.client_data = NULL; smcallbacks.shutdown_cancelled.callback = xsmp_shutdown_cancelled; smcallbacks.shutdown_cancelled.client_data = NULL; // Set up a watch on ICE connection creations. The "dummy" argument is // apparently required for FreeBSD (we get a BUS error when using NULL). if (IceAddConnectionWatch(xsmp_ice_connection, &dummy) == 0) { if (p_verbose > 0) verb_msg(_("XSMP ICE connection watch failed")); return; } // Create an SM connection xsmp.smcconn = SmcOpenConnection( NULL, NULL, SmProtoMajor, SmProtoMinor, SmcSaveYourselfProcMask | SmcDieProcMask | SmcSaveCompleteProcMask | SmcShutdownCancelledProcMask, &smcallbacks, NULL, &xsmp.clientid, sizeof(errorstring) - 1, errorstring); if (xsmp.smcconn == NULL) { char errorreport[132]; if (p_verbose > 0) { vim_snprintf(errorreport, sizeof(errorreport), _("XSMP SmcOpenConnection failed: %s"), errorstring); verb_msg(errorreport); } return; } xsmp.iceconn = SmcGetIceConnection(xsmp.smcconn); #if 0 // ID ourselves smname.value = "vim"; smname.length = 3; smnameprop.name = "SmProgram"; smnameprop.type = "SmARRAY8"; smnameprop.num_vals = 1; smnameprop.vals = &smname; smprops[0] = &smnameprop; SmcSetProperties(xsmp.smcconn, 1, smprops); #endif } // Shut down XSMP comms. void xsmp_close(void) { if (xsmp_icefd != -1) { SmcCloseConnection(xsmp.smcconn, 0, NULL); if (xsmp.clientid != NULL) free(xsmp.clientid); xsmp.clientid = NULL; xsmp_icefd = -1; } } #endif // USE_XSMP #ifdef EBCDIC // Translate character to its CTRL- value char CtrlTable[] = { /* 00 - 5E */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* ^ */ 0x1E, /* - */ 0x1F, /* 61 - 6C */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* _ */ 0x1F, /* 6E - 80 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* a */ 0x01, /* b */ 0x02, /* c */ 0x03, /* d */ 0x37, /* e */ 0x2D, /* f */ 0x2E, /* g */ 0x2F, /* h */ 0x16, /* i */ 0x05, /* 8A - 90 */ 0, 0, 0, 0, 0, 0, 0, /* j */ 0x15, /* k */ 0x0B, /* l */ 0x0C, /* m */ 0x0D, /* n */ 0x0E, /* o */ 0x0F, /* p */ 0x10, /* q */ 0x11, /* r */ 0x12, /* 9A - A1 */ 0, 0, 0, 0, 0, 0, 0, 0, /* s */ 0x13, /* t */ 0x3C, /* u */ 0x3D, /* v */ 0x32, /* w */ 0x26, /* x */ 0x18, /* y */ 0x19, /* z */ 0x3F, /* AA - AC */ 0, 0, 0, /* [ */ 0x27, /* AE - BC */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* ] */ 0x1D, /* BE - C0 */ 0, 0, 0, /* A */ 0x01, /* B */ 0x02, /* C */ 0x03, /* D */ 0x37, /* E */ 0x2D, /* F */ 0x2E, /* G */ 0x2F, /* H */ 0x16, /* I */ 0x05, /* CA - D0 */ 0, 0, 0, 0, 0, 0, 0, /* J */ 0x15, /* K */ 0x0B, /* L */ 0x0C, /* M */ 0x0D, /* N */ 0x0E, /* O */ 0x0F, /* P */ 0x10, /* Q */ 0x11, /* R */ 0x12, /* DA - DF */ 0, 0, 0, 0, 0, 0, /* \ */ 0x1C, /* E1 */ 0, /* S */ 0x13, /* T */ 0x3C, /* U */ 0x3D, /* V */ 0x32, /* W */ 0x26, /* X */ 0x18, /* Y */ 0x19, /* Z */ 0x3F, /* EA - FF*/ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; char MetaCharTable[]= {// 0 1 2 3 4 5 6 7 8 9 A B C D E F 0, 0, 0, 0,'\\', 0,'F', 0,'W','M','N', 0, 0, 0, 0, 0, 0, 0, 0, 0,']', 0, 0,'G', 0, 0,'R','O', 0, 0, 0, 0, '@','A','B','C','D','E', 0, 0,'H','I','J','K','L', 0, 0, 0, 'P','Q', 0,'S','T','U','V', 0,'X','Y','Z','[', 0, 0,'^', 0 }; // TODO: Use characters NOT numbers!!! char CtrlCharTable[]= {// 0 1 2 3 4 5 6 7 8 9 A B C D E F 124,193,194,195, 0,201, 0, 0, 0, 0, 0,210,211,212,213,214, 215,216,217,226, 0,209,200, 0,231,232, 0, 0,224,189, 95,109, 0, 0, 0, 0, 0, 0,230,173, 0, 0, 0, 0, 0,197,198,199, 0, 0,229, 0, 0, 0, 0,196, 0, 0, 0, 0,227,228, 0,233, }; #endif