Mercurial > vim
view src/os_unix.c @ 4444:ccecb03e5e8b v7.3.970
updated for version 7.3.970
Problem: Syntax highlighting can be slow.
Solution: Include the NFA regexp engine. Add the 'regexpengine' option to
select which one is used. (various authors, including Ken Takata,
Andrei Aiordachioaie, Russ Cox, Xiaozhou Liua, Ian Young)
| author | Bram Moolenaar <bram@vim.org> |
|---|---|
| date | Sun, 19 May 2013 19:40:29 +0200 |
| parents | bb3cfdb62607 |
| children | 5e0b6a9282df |
line wrap: on
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/* vi:set ts=8 sts=4 sw=4: * * 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 BeOS and Atari MiNT. * * A lot of this file was originally written by Juergen Weigert and later * changed beyond recognition. */ /* * Some systems have a prototype for select() that has (int *) instead of * (fd_set *), which is wrong. This define removes that prototype. We define * our own prototype below. * Don't use it for the Mac, it causes a warning for precompiled headers. * TODO: use a configure check for precompiled headers? */ #if !defined(__APPLE__) && !defined(__TANDEM) # define select select_declared_wrong #endif #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 /* * Use this prototype for select, some include files have a wrong prototype */ #ifndef __TANDEM # undef select # ifdef __BEOS__ # define select beos_select # endif #endif #ifdef __CYGWIN__ # ifndef WIN32 # 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 #if defined(HAVE_SELECT) extern int select __ARGS((int, fd_set *, fd_set *, fd_set *, struct timeval *)); #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 __ARGS((void)); static int gpm_open __ARGS((void)); static int mch_gpm_process __ARGS((void)); #endif #ifdef FEAT_SYSMOUSE # include <sys/consio.h> # include <sys/fbio.h> static int sysmouse_open __ARGS((void)); static void sysmouse_close __ARGS((void)); static RETSIGTYPE sig_sysmouse __ARGS(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 __ARGS((void)); static void xterm_update __ARGS((void)); # endif # if defined(FEAT_XCLIPBOARD) || defined(FEAT_TITLE) Window x11_window = 0; # endif Display *x11_display = NULL; # ifdef FEAT_TITLE static int get_x11_windis __ARGS((void)); static void set_x11_title __ARGS((char_u *)); static void set_x11_icon __ARGS((char_u *)); # endif #endif #ifdef FEAT_TITLE static int get_x11_title __ARGS((int)); static int get_x11_icon __ARGS((int)); static char_u *oldtitle = NULL; static int did_set_title = FALSE; static char_u *oldicon = NULL; static int did_set_icon = FALSE; #endif static void may_core_dump __ARGS((void)); #ifdef HAVE_UNION_WAIT typedef union wait waitstatus; #else typedef int waitstatus; #endif static pid_t wait4pid __ARGS((pid_t, waitstatus *)); static int WaitForChar __ARGS((long)); #if defined(__BEOS__) int RealWaitForChar __ARGS((int, long, int *)); #else static int RealWaitForChar __ARGS((int, long, int *)); #endif #ifdef FEAT_XCLIPBOARD static int do_xterm_trace __ARGS((void)); # define XT_TRACE_DELAY 50 /* delay for xterm tracing */ #endif static void handle_resize __ARGS((void)); #if defined(SIGWINCH) static RETSIGTYPE sig_winch __ARGS(SIGPROTOARG); #endif #if defined(SIGINT) static RETSIGTYPE catch_sigint __ARGS(SIGPROTOARG); #endif #if defined(SIGPWR) static RETSIGTYPE catch_sigpwr __ARGS(SIGPROTOARG); #endif #if defined(SIGALRM) && defined(FEAT_X11) \ && defined(FEAT_TITLE) && !defined(FEAT_GUI_GTK) # define SET_SIG_ALARM static RETSIGTYPE sig_alarm __ARGS(SIGPROTOARG); /* volatile because it is used in signal handler sig_alarm(). */ static volatile int sig_alarm_called; #endif static RETSIGTYPE deathtrap __ARGS(SIGPROTOARG); static void catch_int_signal __ARGS((void)); static void set_signals __ARGS((void)); static void catch_signals __ARGS((RETSIGTYPE (*func_deadly)(), RETSIGTYPE (*func_other)())); #ifndef __EMX__ static int have_wildcard __ARGS((int, char_u **)); static int have_dollars __ARGS((int, char_u **)); #endif #ifndef __EMX__ static int save_patterns __ARGS((int num_pat, char_u **pat, int *num_file, char_u ***file)); #endif #ifndef SIG_ERR # define SIG_ERR ((RETSIGTYPE (*)())-1) #endif /* volatile because it is used in signal handler sig_winch(). */ static volatile int do_resize = FALSE; #ifndef __EMX__ static char_u *extra_shell_arg = NULL; static int show_shell_mess = TRUE; #endif /* volatile because it is used in signal handler deathtrap(). */ static volatile int deadly_signal = 0; /* The signal we caught */ /* volatile because it is used in signal handler deathtrap(). */ static volatile int in_mch_delay = FALSE; /* sleeping in mch_delay() */ static int curr_tmode = TMODE_COOK; /* contains current terminal mode */ #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.in */ #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", TRUE}, #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(path) char *path; { if (p_verbose >= 5) { verbose_enter(); smsg((char_u *)"chdir(%s)", path); verbose_leave(); } # ifdef VMS return chdir(vms_fixfilename(path)); # else return chdir(path); # endif } /* * Write s[len] to the screen. */ void mch_write(s, len) char_u *s; int len; { 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); } /* * 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(buf, maxlen, wtime, tb_change_cnt) char_u *buf; int maxlen; long wtime; /* don't use "time", MIPS cannot handle it */ int tb_change_cnt; { int len; #ifdef FEAT_NETBEANS_INTG /* Process the queued netbeans messages. */ netbeans_parse_messages(); #endif /* Check if window changed size while we were busy, perhaps the ":set * columns=99" command was used. */ while (do_resize) handle_resize(); if (wtime >= 0) { while (WaitForChar(wtime) == 0) /* no character available */ { if (!do_resize) /* return if not interrupted by resize */ return 0; handle_resize(); #ifdef FEAT_NETBEANS_INTG /* Process the queued netbeans messages. */ netbeans_parse_messages(); #endif } } else /* wtime == -1 */ { /* * If there is no character available within 'updatetime' seconds * flush all the swap files to disk. * Also done when interrupted by SIGWINCH. */ if (WaitForChar(p_ut) == 0) { #ifdef FEAT_AUTOCMD if (trigger_cursorhold() && maxlen >= 3 && !typebuf_changed(tb_change_cnt)) { buf[0] = K_SPECIAL; buf[1] = KS_EXTRA; buf[2] = (int)KE_CURSORHOLD; return 3; } #endif before_blocking(); } } for (;;) /* repeat until we got a character */ { while (do_resize) /* window changed size */ handle_resize(); #ifdef FEAT_NETBEANS_INTG /* Process the queued netbeans messages. */ netbeans_parse_messages(); #endif #ifndef VMS /* VMS: must try reading, WaitForChar() does nothing. */ /* * We want to be interrupted by the winch signal * or by an event on the monitored file descriptors. */ if (WaitForChar(-1L) == 0) { if (do_resize) /* interrupted by SIGWINCH signal */ handle_resize(); return 0; } #endif /* If input was put directly in typeahead buffer bail out here. */ if (typebuf_changed(tb_change_cnt)) return 0; /* * For some terminals we only get one character at a time. * We want the get all available characters, so we could keep on * trying until none is available * For some other terminals this is quite slow, that's why we don't do * it. */ len = read_from_input_buf(buf, (long)maxlen); if (len > 0) { #ifdef OS2 int i; for (i = 0; i < len; i++) if (buf[i] == 0) buf[i] = K_NUL; #endif return len; } } } static void handle_resize() { do_resize = FALSE; shell_resized(); } /* * return non-zero if a character is available */ int mch_char_avail() { return WaitForChar(0L); } #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 /* * Return total amount of memory available in Kbyte. * Doesn't change when memory has been allocated. */ long_u mch_total_mem(special) int special UNUSED; { # ifdef __EMX__ return ulimit(3, 0L) >> 10; /* always 32MB? */ # else long_u mem = 0; long_u shiftright = 10; /* how much to shift "mem" right for Kbyte */ # ifdef HAVE_SYSCTL int mib[2], physmem; size_t len; /* BSD way of getting the amount of RAM available. */ mib[0] = CTL_HW; mib[1] = HW_USERMEM; len = sizeof(physmem); if (sysctl(mib, 2, &physmem, &len, NULL, 0) == 0) mem = (long_u)physmem; # 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 } #endif void mch_delay(msec, ignoreinput) long msec; int ignoreinput; { int old_tmode; #ifdef FEAT_MZSCHEME long total = msec; /* remember original value */ #endif if (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). */ in_mch_delay = TRUE; old_tmode = curr_tmode; if (curr_tmode == TMODE_RAW) 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 # ifdef __EMX__ _sleep2(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 /* __EMX__ */ # endif /* HAVE_SELECT */ # endif /* HAVE_NANOSLEEP */ #endif /* HAVE_USLEEP */ #ifdef FEAT_MZSCHEME } while (total > 0); #endif settmode(old_tmode); in_mch_delay = FALSE; } else WaitForChar(msec); } #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 void check_stack_growth __ARGS((char *p)); 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(p) 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() { 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(p) 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 void init_signal_stack __ARGS((void)); static char *signal_stack; static void init_signal_stack() { if (signal_stack != NULL) { # ifdef HAVE_SIGALTSTACK # if defined(__APPLE__) && (!defined(MAC_OS_X_VERSION_MAX_ALLOWED) \ || MAC_OS_X_VERSION_MAX_ALLOWED <= 1040) /* missing prototype. Adding it to osdef?.h.in doesn't work, because * "struct sigaltstack" needs to be declared. */ extern int sigaltstack __ARGS((const struct sigaltstack *ss, struct sigaltstack *oss)); # endif # 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(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) /* * A simplistic version of setjmp() that only allows one level of using. * 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. */ void mch_startjmp() { #ifdef SIGHASARG lc_signal = 0; #endif lc_active = TRUE; } void mch_endjmp() { lc_active = FALSE; } void mch_didjmp() { # 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 file and exit properly. * (partly from Elvis). */ 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(HAVE_SETJMP_H) /* * 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; #ifdef FEAT_EVAL /* Set the v:dying variable. */ set_vim_var_nr(VV_DYING, (long)entered); #endif #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) { OUT_STR(_("Vim: Double signal, exiting\n")); out_flush(); getout(1); } #ifdef SIGHASARG sprintf((char *)IObuff, _("Vim: Caught deadly signal %s\n"), signal_info[i].name); #else sprintf((char *)IObuff, _("Vim: Caught deadly signal\n")); #endif preserve_exit(); /* preserve files and exit */ #ifdef NBDEBUG reset_signals(); may_core_dump(); abort(); #endif SIGRETURN; } #if defined(_REENTRANT) && defined(SIGCONT) /* * On Solaris 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 * * volatile because it is used in signal handler sigcont_handler(). */ static volatile int sigcont_received; static RETSIGTYPE sigcont_handler __ARGS(SIGPROTOARG); /* * signal handler for SIGCONT */ static RETSIGTYPE sigcont_handler SIGDEFARG(sigarg) { sigcont_received = TRUE; SIGRETURN; } #endif # if defined(FEAT_CLIPBOARD) && defined(FEAT_X11) static void loose_clipboard __ARGS((void)); # ifdef USE_SYSTEM static void save_clipboard __ARGS((void)); static void restore_clipboard __ARGS((void)); 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() { 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() { 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() { 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() { /* BeOS does have SIGTSTP, but it doesn't work. */ #if defined(SIGTSTP) && !defined(__BEOS__) 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(_REENTRANT) && defined(SIGCONT) sigcont_received = FALSE; # endif kill(0, SIGTSTP); /* send ourselves a STOP signal */ # if defined(_REENTRANT) && defined(SIGCONT) /* * Wait for the SIGCONT signal to be handled. It generally happens * immediately, but somehow not all the time. 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, call sleep(0) * to just yield CPU. Signal should then be received. If somehow * it's still not received, sleep 1, 2, 3 ms. Don't bother waiting * further if signal is not received after 1+2+3+4 ms (not expected * to happen). */ { long wait_time; for (wait_time = 0; !sigcont_received && wait_time <= 3L; wait_time++) /* Loop is not entered most of the time */ mch_delay(wait_time, FALSE); } # endif # ifdef FEAT_TITLE /* * Set oldtitle to NULL, so the current title is obtained again. */ vim_free(oldtitle); oldtitle = NULL; # endif settmode(TMODE_RAW); need_check_timestamps = TRUE; did_check_timestamps = FALSE; #else suspend_shell(); #endif } void mch_init() { Columns = 80; Rows = 24; out_flush(); set_signals(); #ifdef MACOS_CONVERT mac_conv_init(); #endif #ifdef FEAT_CYGWIN_WIN32_CLIPBOARD win_clip_init(); #endif } static void set_signals() { #if defined(SIGWINCH) /* * WINDOW CHANGE signal is handled with sig_winch(). */ signal(SIGWINCH, (RETSIGTYPE (*)())sig_winch); #endif /* * We want the STOP signal to work, to make mch_suspend() work. * For "rvim" the STOP signal is ignored. */ #ifdef SIGTSTP signal(SIGTSTP, restricted ? SIG_IGN : SIG_DFL); #endif #if defined(_REENTRANT) && defined(SIGCONT) signal(SIGCONT, sigcont_handler); #endif /* * We want to ignore breaking of PIPEs. */ #ifdef SIGPIPE signal(SIGPIPE, SIG_IGN); #endif #ifdef SIGINT catch_int_signal(); #endif /* * Ignore alarm signals (Perl's alarm() generates it). */ #ifdef SIGALRM signal(SIGALRM, SIG_IGN); #endif /* * Catch SIGPWR (power failure?) to preserve the swap files, so that no * work will be lost. */ #ifdef SIGPWR 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() { signal(SIGINT, (RETSIGTYPE (*)())catch_sigint); } #endif void reset_signals() { catch_signals(SIG_DFL, SIG_DFL); #if defined(_REENTRANT) && defined(SIGCONT) /* SIGCONT isn't in the list, because its default action is ignore */ signal(SIGCONT, SIG_DFL); #endif } static void catch_signals(func_deadly, func_other) 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) signal(signal_info[i].sig, func_other); } /* * 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(sig) 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(argc, argv) int argc UNUSED; char **argv UNUSED; { #ifdef OS2 /* * Store argv[0], may be used for $VIM. Only use it if it is an absolute * name, mostly it's just "vim" and found in the path, which is unusable. */ if (mch_isFullName(argv[0])) exe_name = vim_strsave((char_u *)argv[0]); #endif if (isatty(1)) return OK; return FAIL; } /* * Return TRUE if the input comes from a terminal, FALSE otherwise. */ int mch_input_isatty() { if (isatty(read_cmd_fd)) return TRUE; return FALSE; } #ifdef FEAT_X11 # if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H) \ && (defined(FEAT_XCLIPBOARD) || defined(FEAT_TITLE)) static void xopen_message __ARGS((struct timeval *tvp)); /* * Give a message about the elapsed time for opening the X window. */ static void xopen_message(tvp) struct timeval *tvp; /* must contain start time */ { struct timeval end_tv; /* Compute elapsed time. */ gettimeofday(&end_tv, NULL); smsg((char_u *)_("Opening the X display took %ld msec"), (end_tv.tv_sec - tvp->tv_sec) * 1000L + (end_tv.tv_usec - tvp->tv_usec) / 1000L); } # endif #endif #if defined(FEAT_X11) && (defined(FEAT_TITLE) || defined(FEAT_XCLIPBOARD)) /* * A few functions shared by X11 title and clipboard code. */ static int x_error_handler __ARGS((Display *dpy, XErrorEvent *error_event)); static int x_error_check __ARGS((Display *dpy, XErrorEvent *error_event)); static int x_connect_to_server __ARGS((void)); static int test_x11_window __ARGS((Display *dpy)); static int got_x_error = FALSE; /* * X Error handler, otherwise X just exits! (very rude) -- webb */ static int x_error_handler(dpy, error_event) Display *dpy; XErrorEvent *error_event; { XGetErrorText(dpy, error_event->error_code, (char *)IObuff, IOSIZE); STRCAT(IObuff, _("\nVim: Got X error\n")); /* We cannot print a message and continue, because no X calls are allowed * here (causes my system to hang). Silently continuing might be an * alternative... */ preserve_exit(); /* preserve files and exit */ return 0; /* NOTREACHED */ } /* * Another X Error handler, just used to check for errors. */ static int x_error_check(dpy, error_event) Display *dpy UNUSED; XErrorEvent *error_event UNUSED; { got_x_error = TRUE; return 0; } #if defined(FEAT_X11) && defined(FEAT_XCLIPBOARD) # if defined(HAVE_SETJMP_H) /* * An X IO Error handler, used to catch error while opening the display. */ static int x_IOerror_check __ARGS((Display *dpy)); static int x_IOerror_check(dpy) Display *dpy UNUSED; { /* This function should not return, it causes exit(). Longjump instead. */ LONGJMP(lc_jump_env, 1); # ifdef VMS return 0; /* avoid the compiler complains about missing return value */ # endif } # endif /* * An X IO Error handler, used to catch terminal errors. */ static int x_IOerror_handler __ARGS((Display *dpy)); static int x_IOerror_handler(dpy) Display *dpy UNUSED; { xterm_dpy = NULL; 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); # ifdef VMS return 0; /* avoid the compiler complains about missing return value */ # endif } #endif /* * Return TRUE when connection to the X server is desired. */ static int x_connect_to_server() { regmatch_T regmatch; #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) { regmatch.rm_ic = FALSE; /* Don't ignore case */ regmatch.regprog = clip_exclude_prog; if (vim_regexec(®match, T_NAME, (colnr_T)0)) return FALSE; } return TRUE; } /* * 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(dpy) 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((char_u *)_("Testing the X display failed")); return (got_x_error ? FAIL : OK); } #endif #ifdef FEAT_TITLE #ifdef FEAT_X11 static int get_x11_thing __ARGS((int get_title, int test_only)); /* * try to get x11 window and display * * return FAIL for failure, OK otherwise */ static int get_x11_windis() { 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 != 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 #if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H) struct timeval start_tv; if (p_verbose > 0) gettimeofday(&start_tv, NULL); #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((char_u *)_("Opening the X display timed out")); #endif if (x11_display != NULL) { # if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H) if (p_verbose > 0) { verbose_enter(); xopen_message(&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(test_only) int test_only; { return get_x11_thing(TRUE, test_only); } /* * Determine original x11 Window icon */ static int get_x11_icon(test_only) 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(get_title, test_only) 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 alikes. 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 defined(FEAT_XFONTSET) || defined(FEAT_MBYTE) if (text_prop.encoding == XA_STRING # ifdef FEAT_MBYTE && !has_mbyte # endif ) { #endif if (get_title) oldtitle = vim_strsave((char_u *)text_prop.value); else oldicon = vim_strsave((char_u *)text_prop.value); #if defined(FEAT_XFONTSET) || defined(FEAT_MBYTE) } 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); } } #endif } XFree((void *)text_prop.value); } } return retval; } /* Are Xutf8 functions available? Avoid error from old compilers. */ #if defined(X_HAVE_UTF8_STRING) && defined(FEAT_MBYTE) # if X_HAVE_UTF8_STRING # 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(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(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(test_only) int test_only UNUSED; { return FALSE; } static int get_x11_icon(test_only) 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() { return get_x11_title(TRUE); } int mch_can_restore_icon() { return get_x11_icon(TRUE); } /* * Set the window title and icon. */ void mch_settitle(title, icon) 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_MAC) || defined(FEAT_GUI_GTK) 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 == 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_PHOTON) || defined(FEAT_GUI_MAC) else gui_mch_settitle(title, icon); #endif 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: * 1 only restore title * 2 only restore icon * 3 restore title and icon */ void mch_restore_title(which) int which; { /* only restore the title or icon when it has been set */ mch_settitle(((which & 1) && did_set_title) ? (oldtitle ? oldtitle : p_titleold) : NULL, ((which & 2) && did_set_icon) ? oldicon : NULL); } #endif /* FEAT_TITLE */ /* * Return TRUE if "name" looks like some xterm name. * Seiichi Sato mentioned that "mlterm" works like xterm. */ int vim_is_xterm(name) 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 || 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(name) char_u *name; { return (name != NULL && (term_is_xterm || STRNICMP(name, "screen", 6) == 0)); } #endif #if defined(FEAT_MOUSE_TTY) || defined(PROTO) /* * 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() { 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; } #endif int vim_is_iris(name) 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(name) 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(name) 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, "dtterm", 6) == 0); } /* * Insert user name in s[len]. * Return OK if a name found. */ int mch_get_user_name(s, len) 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, s, len) 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(s, len) 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(s, len) 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() { return (long)getpid(); } #if !defined(HAVE_STRERROR) && defined(USE_GETCWD) static char *strerror __ARGS((int)); static char * strerror(err) 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. * Return OK for success, FAIL for failure. */ int mch_dirname(buf, len) 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 } #if defined(OS2) || defined(PROTO) /* * Replace all slashes by backslashes. * When 'shellslash' set do it the other way around. */ void slash_adjust(p) char_u *p; { while (*p) { if (*p == psepcN) *p = psepc; mb_ptr_adv(p); } } #endif /* * Get absolute file name into "buf[len]". * * return FAIL for failure, OK for success */ int mch_FullName(fname, buf, len, force) char_u *fname, *buf; int len; int force; /* also expand when already absolute path */ { int l; #ifdef OS2 int only_drive; /* file name is only a drive letter */ #endif #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 cygwin_conv_path(CCP_WIN_A_TO_POSIX, 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 */ if (force || !mch_isFullName(fname)) { /* * If the file name has a path, change to that directory for a moment, * and then do the getwd() (and get back to where we were). * This will get the correct path name with "../" things. */ #ifdef OS2 only_drive = 0; if (((p = vim_strrchr(fname, '/')) != NULL) || ((p = vim_strrchr(fname, '\\')) != NULL) || (((p = vim_strchr(fname, ':')) != NULL) && ++only_drive)) #else if ((p = vim_strrchr(fname, '/')) != NULL) #endif { #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 { #ifdef OS2 /* * compensate for case where ':' from "D:" was the only * path separator detected in the file name; the _next_ * character has to be removed, and then restored later. */ if (only_drive) p++; #endif /* 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; } #ifdef OS2 if (only_drive) { p--; if (retval != FAIL) fname--; } #endif } } 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(fname) char_u *fname; { #ifdef __EMX__ return _fnisabs(fname); #else # 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 #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(name, len) 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 (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 (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(name) 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(name, perm) 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_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(from_file, to_file) 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) { security_context_t from_context = NULL; security_context_t 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 */ /* * 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(fname) 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(fname, aclent) 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(aclent) 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(name) char_u *name UNUSED; { /* can't hide a file */ } /* * return TRUE if "name" is a directory * return FALSE if "name" is not a directory * return FALSE for error */ int mch_isdir(name) 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; #ifdef _POSIX_SOURCE return (S_ISDIR(statb.st_mode) ? TRUE : FALSE); #else return ((statb.st_mode & S_IFMT) == S_IFDIR ? TRUE : FALSE); #endif } static int executable_file __ARGS((char_u *name)); /* * Return 1 if "name" is an executable file, 0 if not or it doesn't exist. */ static int executable_file(name) char_u *name; { struct stat st; if (stat((char *)name, &st)) return 0; return S_ISREG(st.st_mode) && mch_access((char *)name, X_OK) == 0; } /* * Return 1 if "name" can be found in $PATH and executed, 0 if not. * Return -1 if unknown. */ int mch_can_exe(name) char_u *name; { char_u *buf; char_u *p, *e; int retval; /* If it's an absolute or relative path don't need to use $PATH. */ if (mch_isFullName(name) || (name[0] == '.' && (name[1] == '/' || (name[1] == '.' && name[2] == '/')))) return executable_file(name); p = (char_u *)getenv("PATH"); if (p == NULL || *p == NUL) return -1; buf = alloc((unsigned)(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) 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(name) 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; #ifndef OS2 if (S_ISBLK(st.st_mode)) /* block device isn't writable */ return NODE_OTHER; #endif /* Everything else is writable? */ return NODE_WRITABLE; } void mch_early_init() { #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 = (char *)alloc(SIGSTKSZ); init_signal_stack(); #endif } #if defined(EXITFREE) || defined(PROTO) void mch_free_mem() { # 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_free(signal_stack); signal_stack = NULL; # endif # ifdef FEAT_TITLE vim_free(oldtitle); vim_free(oldicon); # endif } #endif static void exit_scroll __ARGS((void)); /* * Output a newline when exiting. * Make sure the newline goes to the same stream as the text. */ static void exit_scroll() { 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 */ } } void mch_exit(r) 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 mch_restore_title(3); /* restore xterm title and icon name */ #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 */ 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() { if (deadly_signal != 0) { signal(deadly_signal, SIG_DFL); kill(getpid(), deadly_signal); /* Die using the signal we caught */ } } #ifndef VMS void mch_settmode(tmode) int tmode; { static int first = TRUE; /* 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__) /* * for "new" tty systems */ # ifdef HAVE_TERMIOS_H static struct termios told; struct termios tnew; # else static struct termio told; struct termio tnew; # endif if (first) { first = FALSE; # if defined(HAVE_TERMIOS_H) tcgetattr(read_cmd_fd, &told); # else ioctl(read_cmd_fd, TCGETA, &told); # endif } tnew = told; if (tmode == TMODE_RAW) { /* * ~ICRNL enables typing ^V^M */ tnew.c_iflag &= ~ICRNL; tnew.c_lflag &= ~(ICANON | ECHO | ISIG | ECHOE # if defined(IEXTEN) && !defined(__MINT__) | IEXTEN /* IEXTEN enables typing ^V on SOLARIS */ /* but it breaks function keys on MINT */ # endif ); # ifdef ONLCR /* don't map NL -> CR NL, we do it ourselves */ tnew.c_oflag &= ~ONLCR; # endif tnew.c_cc[VMIN] = 1; /* return after 1 char */ tnew.c_cc[VTIME] = 0; /* don't wait */ } else if (tmode == TMODE_SLEEP) tnew.c_lflag &= ~(ECHO); # 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; ioctl(read_cmd_fd, TIOCGETP, &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 curr_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() { char_u buf[2]; char_u *p; /* 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__) /* for "new" tty systems */ # ifdef HAVE_TERMIOS_H struct termios keys; # else struct termio keys; # endif # if defined(HAVE_TERMIOS_H) if (tcgetattr(read_cmd_fd, &keys) != -1) # else if (ioctl(read_cmd_fd, TCGETA, &keys) != -1) # endif { buf[0] = keys.c_cc[VERASE]; intr_char = keys.c_cc[VINTR]; #else /* for "old" tty systems */ struct sgttyb keys; if (ioctl(read_cmd_fd, TIOCGETP, &keys) != -1) { buf[0] = keys.sg_erase; intr_char = keys.sg_kill; #endif 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); } #if 0 } /* to keep cindent happy */ #endif } #endif /* VMS */ #if defined(FEAT_MOUSE_TTY) || defined(PROTO) /* * Set mouse clicks on or off. */ void mch_setmouse(on) int on; { static int ison = FALSE; int xterm_mouse_vers; if (on == ison) /* 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"))); ison = on; } # endif # ifdef FEAT_MOUSE_SGR if (ttym_flags == TTYM_SGR) { out_str_nf((char_u *) (on ? IF_EB("\033[?1006h", ESC_STR "[?1006h") : IF_EB("\033[?1006l", ESC_STR "[?1006l"))); ison = on; } # 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 ? 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"))); 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"); ison = on; } # endif # ifdef FEAT_MOUSE_GPM else { if (on) { if (gpm_open()) ison = TRUE; } else { gpm_close(); ison = FALSE; } } # endif # ifdef FEAT_SYSMOUSE else { if (on) { if (sysmouse_open() == OK) ison = TRUE; } else { sysmouse_close(); 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 ison = TRUE; } else { out_str_nf((char_u *)IF_EB("\033[0~ZwQ\033\\", ESC_STR "[0~ZwQ" ESC_STR "\\")); 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"); ison = on; } # endif } /* * Set the mouse termcode, depending on the 'term' and 'ttymouse' options. */ void check_mouse_termcode() { # 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_MOUSE, (char_u *)IF_EB("\033MG", ESC_STR "MG")); # 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 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 /* same as the dec mouse */ 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", CSI_STR) : IF_EB("\033[", ESC_STR "["))); if (*p_mouse != NUL) { mch_setmouse(FALSE); setmouse(); } } else del_mouse_termcode(KS_URXVT_MOUSE); # endif # ifdef FEAT_MOUSE_SGR /* same as the dec mouse */ 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<", CSI_STR "<") : IF_EB("\033[<", ESC_STR "[<"))); if (*p_mouse != NUL) { mch_setmouse(FALSE); setmouse(); } } else del_mouse_termcode(KS_SGR_MOUSE); # endif } #endif /* * set screen mode, always fails. */ int mch_screenmode(arg) char_u *arg UNUSED; { EMSG(_(e_screenmode)); return FAIL; } #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() { long rows = 0; long columns = 0; char_u *p; /* * For OS/2 use _scrsize(). */ # ifdef __EMX__ { int s[2]; _scrsize(s); columns = s[0]; rows = s[1]; } # endif /* * 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; return OK; } /* * Try to set the window size to Rows and Columns. */ void mch_set_shellsize() { 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() { /* Nothing to do. */ } /* * Wait for process "child" to end. * Return "child" if it exited properly, <= 0 on error. */ static pid_t wait4pid(child, status) pid_t child; waitstatus *status; { pid_t wait_pid = 0; 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 10 msec before trying again. */ mch_delay(10L, TRUE); continue; } if (wait_pid <= 0 # ifdef ECHILD && errno == ECHILD # endif ) break; } return wait_pid; } int mch_call_shell(cmd, options) char_u *cmd; int options; /* SHELL_*, see vim.h */ { #ifdef VMS char *ifn = NULL; char *ofn = NULL; #endif int tmode = cur_tmode; #ifdef USE_SYSTEM /* use system() to start the shell: simple but slow */ int x; # ifndef __EMX__ char_u *newcmd; /* only needed for unix */ # else /* * Set the preferred shell in the EMXSHELL environment variable (but * only if it is different from what is already in the environment). * Emx then takes care of whether to use "/c" or "-c" in an * intelligent way. Simply pass the whole thing to emx's system() call. * Emx also starts an interactive shell if system() is passed an empty * string. */ char_u *p, *old; if (((old = (char_u *)getenv("EMXSHELL")) == NULL) || STRCMP(old, p_sh)) { /* should check HAVE_SETENV, but I know we don't have it. */ p = alloc(10 + strlen(p_sh)); if (p) { sprintf((char *)p, "EMXSHELL=%s", p_sh); putenv((char *)p); /* don't free the pointer! */ } } # endif 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 # ifdef __EMX__ if (cmd == NULL) x = system(""); /* this starts an interactive shell in emx */ else x = system((char *)cmd); /* system() returns -1 when error occurs in starting shell */ if (x == -1 && !emsg_silent) { MSG_PUTS(_("\nCannot execute shell ")); msg_outtrans(p_sh); msg_putchar('\n'); } # else /* not __EMX__ */ 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 = lalloc(STRLEN(p_sh) + (extra_shell_arg == NULL ? 0 : STRLEN(extra_shell_arg)) + STRLEN(p_shcf) + STRLEN(cmd) + 4, TRUE); 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")); # endif /* __EMX__ */ else if (x && !(options & SHELL_SILENT)) { MSG_PUTS(_("\nshell returned ")); msg_outnum((long)x); msg_putchar('\n'); } if (tmode == TMODE_RAW) 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 */ /* don't use system(), use fork()/exec() */ # define EXEC_FAILED 122 /* Exit code when shell didn't execute. Don't use 127, some shells use that already */ char_u *newcmd = NULL; 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; int argc; char_u *p_shcf_copy = NULL; int i; char_u *p; int inquote; int pty_master_fd = -1; /* for pty's */ # ifdef FEAT_GUI int pty_slave_fd = -1; char *tty_name; # endif int fd_toshell[2]; /* for pipes */ int fd_fromshell[2]; int pipe_error = FALSE; # ifdef HAVE_SETENV char envbuf[50]; # else static char envbuf_Rows[20]; static char envbuf_Columns[20]; # endif int did_settmode = FALSE; /* settmode(TMODE_RAW) called */ newcmd = vim_strsave(p_sh); if (newcmd == NULL) /* out of memory */ goto error; out_flush(); if (options & SHELL_COOKED) settmode(TMODE_COOK); /* set to normal mode */ /* * Do this loop twice: * 1: find number of arguments * 2: separate them and build argv[] */ for (i = 0; i < 2; ++i) { p = newcmd; inquote = FALSE; argc = 0; for (;;) { if (i == 1) argv[argc] = (char *)p; ++argc; while (*p && (inquote || (*p != ' ' && *p != TAB))) { if (*p == '"') inquote = !inquote; ++p; } if (*p == NUL) break; if (i == 1) *p++ = NUL; p = skipwhite(p); } if (argv == NULL) { /* * Account for possible multiple args in p_shcf. */ p = p_shcf; for (;;) { p = skiptowhite(p); if (*p == NUL) break; ++argc; p = skipwhite(p); } argv = (char **)alloc((unsigned)((argc + 4) * sizeof(char *))); if (argv == NULL) /* out of memory */ goto error; } } if (cmd != NULL) { char_u *s; 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. */ p_shcf_copy = alloc((unsigned)STRLEN(p_shcf) + 1); if (p_shcf_copy == NULL) /* out of memory */ goto error; s = p_shcf_copy; 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; /* * 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))) { pty_master_fd = 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; } } } /* * 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 */ { # ifdef __BEOS__ beos_cleanup_read_thread(); # endif if ((pid = fork()) == -1) /* maybe we should use vfork() */ { 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 */ 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) { ignored = dup(fd); /* To replace stdin (fd 0) */ ignored = dup(fd); /* To replace stdout (fd 1) */ 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) SetupSlavePTY(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 /* Simulate to have a dumb terminal (for now) */ # ifdef HAVE_SETENV setenv("TERM", "dumb", 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); # else /* * Putenv does not copy the string, it has to remain valid. * Use a static array to avoid losing allocated memory. */ putenv("TERM=dumb"); sprintf(envbuf_Rows, "ROWS=%ld", Rows); putenv(envbuf_Rows); sprintf(envbuf_Rows, "LINES=%ld", Rows); putenv(envbuf_Rows); sprintf(envbuf_Columns, "COLUMNS=%ld", Columns); putenv(envbuf_Columns); # endif /* * 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); ignored = dup(pty_slave_fd); close(1); ignored = dup(pty_slave_fd); if (gui.in_use) { close(2); 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); ignored = dup(fd_toshell[0]); close(fd_toshell[0]); /* set up stdout for the child */ close(fd_fromshell[0]); close(1); ignored = dup(fd_fromshell[1]); close(fd_fromshell[1]); # ifdef FEAT_GUI if (gui.in_use) { /* set up stderr for the child */ close(2); 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(); /* * 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]; # ifdef FEAT_MBYTE int buffer_off = 0; /* valid bytes in buffer[] */ # endif 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; # if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H) struct timeval 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 || (lnum != curbuf->b_no_eol_lnum && (lnum != curbuf->b_ml.ml_line_count || curbuf->b_p_eol))) 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; # if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H) gettimeofday(&start_tv, NULL); # 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; # if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H) gettimeofday(&start_tv, NULL); # 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)) { # ifdef SIGINT /* * Send SIGINT to the child's group or all * processes in our group. */ if (ta_buf[ta_len] == Ctrl_C || ta_buf[ta_len] == intr_char) { # ifdef HAVE_SETSID kill(-pid, SIGINT); # else kill(0, SIGINT); # endif if (wpid > 0) kill(wpid, SIGINT); } # endif if (pty_master_fd < 0 && toshell_fd >= 0 && ta_buf[ta_len] == Ctrl_D) { close(toshell_fd); toshell_fd = -1; } } /* replace K_BS by <BS> and K_DEL by <DEL> */ for (i = ta_len; i < ta_len + len; ++i) { if (ta_buf[i] == CSI && len - i > 2) { c = TERMCAP2KEY(ta_buf[i + 1], ta_buf[i + 2]); if (c == K_DEL || c == K_KDEL || c == K_BS) { mch_memmove(ta_buf + i + 1, ta_buf + i + 3, (size_t)(len - i - 2)); if (c == K_DEL || c == K_KDEL) ta_buf[i] = DEL; else ta_buf[i] = Ctrl_H; len -= 2; } } else if (ta_buf[i] == '\r') ta_buf[i] = '\n'; # ifdef FEAT_MBYTE if (has_mbyte) i += (*mb_ptr2len_len)(ta_buf + i, ta_len + len - i) - 1; # endif } /* * 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]); # ifdef FEAT_MBYTE else if (has_mbyte) { int l = (*mb_ptr2len)(ta_buf + i); msg_outtrans_len(ta_buf + i, l); i += l - 1; } # endif 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)) { len = read_eintr(fromshell_fd, buffer # ifdef FEAT_MBYTE + buffer_off, (size_t)(BUFLEN - buffer_off) # else , (size_t)BUFLEN # endif ); 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]); } } # ifdef FEAT_MBYTE else if (has_mbyte) { int l; 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(buffer); if (p < buffer + len) { *p = c; buffer_off = (buffer + len) - p; mch_memmove(buffer, p, buffer_off); continue; } buffer_off = 0; } # endif /* FEAT_MBYTE */ else { buffer[len] = NUL; msg_puts(buffer); } windgoto(msg_row, msg_col); cursor_on(); out_flush(); if (got_int) break; # if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H) { struct timeval now_tv; long msec; /* 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. */ gettimeofday(&now_tv, NULL); msec = (now_tv.tv_sec - start_tv.tv_sec) * 1000L + (now_tv.tv_usec - start_tv.tv_usec) / 1000L; if (msec > 2000) { noread_cnt = 5; break; } } # endif } /* If we already detected the child has finished break the * loop now. */ if (wait_pid == pid) 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 { /* * 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(); mch_delay(10L, TRUE); } } # 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); } /* * 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")); } } vim_free(argv); vim_free(p_shcf_copy); error: if (!did_settmode) if (tmode == TMODE_RAW) settmode(TMODE_RAW); /* set to raw mode */ # ifdef FEAT_TITLE resettitle(); # endif vim_free(newcmd); return retval; #endif /* USE_SYSTEM */ } /* * Check for CTRL-C typed by reading all available characters. * In cooked mode we should get SIGINT, no need to check. */ void mch_breakcheck() { if (curr_tmode == TMODE_RAW && RealWaitForChar(read_cmd_fd, 0L, NULL)) fill_input_buf(FALSE); } /* * Wait "msec" msec until a character is available from the keyboard or from * inbuf[]. msec == -1 will block forever. * When a GUI is being used, this will never get called -- webb */ static int WaitForChar(msec) long msec; { #ifdef FEAT_MOUSE_GPM int gpm_process_wanted; #endif #ifdef FEAT_XCLIPBOARD int rest; #endif int avail; if (input_available()) /* something in inbuf[] */ return 1; #if defined(FEAT_MOUSE_DEC) /* May need to query the mouse position. */ if (WantQueryMouse) { WantQueryMouse = FALSE; 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_MOUSE_GPM gpm_process_wanted = 0; avail = RealWaitForChar(read_cmd_fd, msec, &gpm_process_wanted); # else avail = RealWaitForChar(read_cmd_fd, msec, NULL); # endif if (!avail) { if (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); #endif return avail; } /* * 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 * Returns also, when a request from Sniff is waiting -- toni. * Or when a Linux GPM mouse event is waiting. */ #if defined(__BEOS__) int #else static int #endif RealWaitForChar(fd, msec, check_for_gpm) int fd; long msec; int *check_for_gpm UNUSED; { int ret; #ifdef FEAT_NETBEANS_INTG int nb_fd = netbeans_filedesc(); #endif #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 # if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H) /* Remember at what time we started, so that we know how much longer we * should wait after being interrupted. */ # define USE_START_TV struct timeval start_tv; if (msec > 0 && ( # ifdef FEAT_XCLIPBOARD xterm_Shell != (Widget)0 # if defined(USE_XSMP) || defined(FEAT_MZSCHEME) || # endif # endif # ifdef USE_XSMP xsmp_icefd != -1 # ifdef FEAT_MZSCHEME || # endif # endif # ifdef FEAT_MZSCHEME (mzthreads_allowed() && p_mzq > 0) # endif )) gettimeofday(&start_tv, NULL); # 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 struct pollfd fds[6]; 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 # ifdef FEAT_NETBEANS_INTG int nb_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_SNIFF # define SNIFF_IDX 1 if (want_sniff_request) { fds[SNIFF_IDX].fd = fd_from_sniff; fds[SNIFF_IDX].events = POLLIN; nfd++; } # endif # ifdef FEAT_XCLIPBOARD 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_NETBEANS_INTG if (nb_fd != -1) { nb_idx = nfd; fds[nfd].fd = nb_fd; fds[nfd].events = POLLIN; nfd++; } #endif ret = poll(fds, nfd, towait); # ifdef FEAT_MZSCHEME if (ret == 0 && mzquantum_used) /* MzThreads scheduling is required and timeout occurred */ finished = FALSE; # endif # ifdef FEAT_SNIFF if (ret < 0) sniff_disconnect(1); else if (want_sniff_request) { if (fds[SNIFF_IDX].revents & POLLHUP) sniff_disconnect(1); if (fds[SNIFF_IDX].revents & POLLIN) sniff_request_waiting = 1; } # 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((char_u *)_("XSMP lost ICE connection")); xsmp_close(); } if (--ret == 0) finished = FALSE; /* Try again */ } # endif #ifdef FEAT_NETBEANS_INTG if (ret > 0 && nb_idx != -1 && fds[nb_idx].revents & POLLIN) { netbeans_read(); --ret; } #endif #else /* HAVE_SELECT */ struct timeval tv; struct timeval *tvp; fd_set rfds, 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 # ifdef __EMX__ /* don't check for incoming chars if not in raw mode, because select() * always returns TRUE then (in some version of emx.dll) */ if (curr_tmode != TMODE_RAW) return 0; # 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(&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_SNIFF if (want_sniff_request) { FD_SET(fd_from_sniff, &rfds); FD_SET(fd_from_sniff, &efds); if (maxfd < fd_from_sniff) maxfd = fd_from_sniff; } # endif # ifdef FEAT_XCLIPBOARD 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 * particulary, 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_NETBEANS_INTG if (nb_fd != -1) { FD_SET(nb_fd, &rfds); if (maxfd < nb_fd) maxfd = nb_fd; } # endif # ifdef OLD_VMS /* Old VMS as v6.2 and older have broken select(). It waits more than * required. Should not be used */ ret = 0; # else ret = select(maxfd + 1, &rfds, NULL, &efds, tvp); # endif # 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_SNIFF if (ret < 0 ) sniff_disconnect(1); else if (ret > 0 && want_sniff_request) { if (FD_ISSET(fd_from_sniff, &efds)) sniff_disconnect(1); if (FD_ISSET(fd_from_sniff, &rfds)) sniff_request_waiting = 1; } # 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((char_u *)_("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_NETBEANS_INTG if (ret > 0 && nb_fd != -1 && FD_ISSET(nb_fd, &rfds)) { netbeans_read(); --ret; } #endif #endif /* HAVE_SELECT */ #ifdef MAY_LOOP if (finished || msec == 0) break; /* We're going to loop around again, find out for how long */ if (msec > 0) { # ifdef USE_START_TV struct timeval mtv; /* Compute remaining wait time. */ gettimeofday(&mtv, NULL); msec -= (mtv.tv_sec - start_tv.tv_sec) * 1000L + (mtv.tv_usec - start_tv.tv_usec) / 1000L; # else /* Guess we got interrupted halfway. */ msec = msec / 2; # endif if (msec <= 0) break; /* waited long enough */ } #endif } return (ret > 0); } #ifndef VMS #ifndef NO_EXPANDPATH /* * 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(gap, path, flags) garray_T *gap; char_u *path; int flags; /* EW_* flags */ { return unix_expandpath(gap, path, 0, flags, FALSE); } #endif /* * 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(num_pat, pat, num_file, file, flags) int num_pat; char_u **pat; int *num_file; char_u ***file; int flags; /* EW_* flags */ { int i; size_t len; char_u *p; int dir; #ifdef __EMX__ /* * This is the OS/2 implementation. */ # define EXPL_ALLOC_INC 16 char_u **expl_files; size_t files_alloced, files_free; char_u *buf; int has_wildcard; *num_file = 0; /* default: no files found */ files_alloced = EXPL_ALLOC_INC; /* how much space is allocated */ files_free = EXPL_ALLOC_INC; /* how much space is not used */ *file = (char_u **)alloc(sizeof(char_u **) * files_alloced); if (*file == NULL) return FAIL; for (; num_pat > 0; num_pat--, pat++) { expl_files = NULL; if (vim_strchr(*pat, '$') || vim_strchr(*pat, '~')) /* expand environment var or home dir */ buf = expand_env_save(*pat); else buf = vim_strsave(*pat); expl_files = NULL; has_wildcard = mch_has_exp_wildcard(buf); /* (still) wildcards? */ if (has_wildcard) /* yes, so expand them */ expl_files = (char_u **)_fnexplode(buf); /* * return value of buf if no wildcards left, * OR if no match AND EW_NOTFOUND is set. */ if ((!has_wildcard && ((flags & EW_NOTFOUND) || mch_getperm(buf) >= 0)) || (expl_files == NULL && (flags & EW_NOTFOUND))) { /* simply save the current contents of *buf */ expl_files = (char_u **)alloc(sizeof(char_u **) * 2); if (expl_files != NULL) { expl_files[0] = vim_strsave(buf); expl_files[1] = NULL; } } vim_free(buf); /* * Count number of names resulting from expansion, * At the same time add a backslash to the end of names that happen to * be directories, and replace slashes with backslashes. */ if (expl_files) { for (i = 0; (p = expl_files[i]) != NULL; i++) { dir = mch_isdir(p); /* If we don't want dirs and this is one, skip it */ 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(p)) continue; if (--files_free == 0) { /* need more room in table of pointers */ files_alloced += EXPL_ALLOC_INC; *file = (char_u **)vim_realloc(*file, sizeof(char_u **) * files_alloced); if (*file == NULL) { EMSG(_(e_outofmem)); *num_file = 0; return FAIL; } files_free = EXPL_ALLOC_INC; } slash_adjust(p); if (dir) { /* For a directory we add a '/', unless it's already * there. */ len = STRLEN(p); if (((*file)[*num_file] = alloc(len + 2)) != NULL) { STRCPY((*file)[*num_file], p); if (!after_pathsep((*file)[*num_file], (*file)[*num_file] + len)) { (*file)[*num_file][len] = psepc; (*file)[*num_file][len + 1] = NUL; } } } else { (*file)[*num_file] = vim_strsave(p); } /* * Error message already given by either alloc or vim_strsave. * Should return FAIL, but returning OK works also. */ if ((*file)[*num_file] == NULL) break; (*num_file)++; } _fnexplodefree((char **)expl_files); } } return OK; #else /* __EMX__ */ /* * 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 ampersent = 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')) == 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 '&' */ { ampersent = 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 && vim_strchr(SHELL_SPECIAL, pat[i][j]) != NULL) /* Put a backslash before a special character, but not * when inside ``. */ *p++ = '\\'; /* Copy one character. */ *p++ = pat[i][j]; } *p = NUL; #endif } if (flags & EW_SILENT) show_shell_mess = FALSE; if (ampersent) 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 (ampersent) mch_delay(10L, TRUE); 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); len = ftell(fd); /* get size of temp file */ fseek(fd, 0L, SEEK_SET); buffer = alloc(len + 1); if (buffer == NULL) { /* out of memory */ mch_remove(tempname); vim_free(tempname); fclose(fd); return FAIL; } i = fread((char *)buffer, 1, len, fd); fclose(fd); mch_remove(tempname); if (i != (int)len) { /* unexpected read error */ EMSG2(_(e_notread), tempname); vim_free(tempname); vim_free(buffer); return FAIL; } vim_free(tempname); # if defined(__CYGWIN__) || defined(__CYGWIN32__) /* Translate <CR><NL> into <NL>. Caution, buffer may contain NUL. */ p = buffer; for (i = 0; i < 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 - 1) 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 = (char_u **)alloc(sizeof(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])) continue; p = alloc((unsigned)(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_free(*file); *file = NULL; goto notfound; } return OK; notfound: if (flags & EW_NOTFOUND) return save_patterns(num_pat, pat, num_file, file); return FAIL; #endif /* __EMX__ */ } #endif /* VMS */ #ifndef __EMX__ static int save_patterns(num_pat, pat, num_file, file) int num_pat; char_u **pat; int *num_file; char_u ***file; { int i; char_u *s; *file = (char_u **)alloc(num_pat * sizeof(char_u *)); 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; } #endif /* * Return TRUE if the string "p" contains a wildcard that mch_expandpath() can * expand. */ int mch_has_exp_wildcard(p) char_u *p; { for ( ; *p; mb_ptr_adv(p)) { #ifndef OS2 if (*p == '\\' && p[1] != NUL) ++p; else #endif if (vim_strchr((char_u *) #ifdef VMS "*?%" #else # ifdef OS2 "*?" # else "*?[{'" # endif #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(p) char_u *p; { for ( ; *p; mb_ptr_adv(p)) { #ifndef OS2 if (*p == '\\' && p[1] != NUL) ++p; else #endif if (vim_strchr((char_u *) #ifdef VMS "*?%$" #else # ifdef OS2 # ifdef VIM_BACKTICK "*?$`" # else "*?$" # endif # else "*?[{`'$" # endif #endif , *p) != NULL || (*p == '~' && p[1] != NUL)) return TRUE; } return FALSE; } #ifndef __EMX__ static int have_wildcard(num, file) int num; char_u **file; { int i; for (i = 0; i < num; i++) if (mch_has_wildcard(file[i])) return 1; return 0; } static int have_dollars(num, file) int num; char_u **file; { int i; for (i = 0; i < num; i++) if (vim_strchr(file[i], '$') != NULL) return TRUE; return FALSE; } #endif /* ifndef __EMX__ */ #ifndef HAVE_RENAME /* * 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(src, dest) const char *src, *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 */ #ifdef FEAT_MOUSE_GPM /* * 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() { 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 */ } /* * Closes connection to gpm */ static void gpm_close() { if (gpm_flag && gpm_fd >= 0) /* if Open */ Gpm_Close(); } /* Reads gpm event and adds special keys to input buf. Returns length of * generated key sequence. * This function is made after gui_send_mouse_event */ static int mch_gpm_process() { 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() { 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() { 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)__ARGS((char_u *)); typedef char_u * (*INTPROCSTR)__ARGS((int)); typedef int (*STRPROCINT)__ARGS((char_u *)); typedef int (*INTPROCINT)__ARGS((int)); /* * Call a DLL routine which takes either a string or int param * and returns an allocated string. */ int mch_libcall(libname, funcname, argstring, argint, string_result, number_result) 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) EMSG2(_("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 HAVE_SETJMP_H /* * 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) ProcAdd = (STRPROCSTR)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)ProcAdd)(argstring); else retval_str = (ProcAdd)(argstring); } } else { # if defined(USE_DLOPEN) ProcAddI = (INTPROCSTR)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)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 HAVE_SETJMP_H 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; EMSG2("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) EMSG2(_("dlerror = \"%s\""), dlerr); /* Free the DLL module. */ (void)dlclose(hinstLib); # else (void)shl_unload(hinstLib); # endif } if (!success) { EMSG2(_(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() { 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(HAVE_SETJMP_H) int (*oldIOhandler)(); #endif # if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H) struct timeval start_tv; if (p_verbose > 0) gettimeofday(&start_tv, NULL); # endif /* Ignore X errors while opening the display */ oldhandler = XSetErrorHandler(x_error_check); #if defined(HAVE_SETJMP_H) /* 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 defined(HAVE_SETJMP_H) mch_endjmp(); #endif } #if defined(HAVE_SETJMP_H) /* 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((char_u *)_("Opening the X display failed")); return; } /* Catch terminating error of the X server connection. */ (void)XSetIOErrorHandler(x_IOerror_handler); # if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H) if (p_verbose > 0) { verbose_enter(); xopen_message(&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(button) 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() { 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() { 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_row = 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(PROTO) /* * Destroy the display, window and app_context. Required for GTK. */ void clear_xterm_clip() { 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() { # 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() { XEvent event; while (XtAppPending(app_context) && !vim_is_input_buf_full()) { 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); } #endif XtDispatchEvent(&event); } } int clip_xterm_own_selection(cbd) VimClipboard *cbd; { if (xterm_Shell != (Widget)0) return clip_x11_own_selection(xterm_Shell, cbd); return FAIL; } void clip_xterm_lose_selection(cbd) VimClipboard *cbd; { if (xterm_Shell != (Widget)0) clip_x11_lose_selection(xterm_Shell, cbd); } void clip_xterm_request_selection(cbd) VimClipboard *cbd; { if (xterm_Shell != (Widget)0) clip_x11_request_selection(xterm_Shell, xterm_dpy, cbd); } void clip_xterm_set_selection(cbd) VimClipboard *cbd; { clip_x11_set_selection(cbd); } #endif #if defined(USE_XSMP) || defined(PROTO) /* * Code for X Session Management Protocol. */ static void xsmp_handle_save_yourself __ARGS((SmcConn smc_conn, SmPointer client_data, int save_type, Bool shutdown, int interact_style, Bool fast)); static void xsmp_die __ARGS((SmcConn smc_conn, SmPointer client_data)); static void xsmp_save_complete __ARGS((SmcConn smc_conn, SmPointer client_data)); static void xsmp_shutdown_cancelled __ARGS((SmcConn smc_conn, SmPointer client_data)); static void xsmp_ice_connection __ARGS((IceConn iceConn, IcePointer clientData, Bool opening, IcePointer *watchData)); # if defined(FEAT_GUI) && defined(USE_XSMP_INTERACT) static void xsmp_handle_interaction __ARGS((SmcConn smc_conn, SmPointer client_data)); /* * This is our chance to ask the user if they want to save, * or abort the logout */ static void xsmp_handle_interaction(smc_conn, client_data) 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)) /* 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(smc_conn, client_data, save_type, shutdown, interact_style, fast) 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((char_u *)_("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(smc_conn, client_data) 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(smc_conn, client_data) 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(smc_conn, client_data) 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, clientData, opening, watchData) 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() { Bool rep; if (IceProcessMessages(xsmp.iceconn, NULL, &rep) == IceProcessMessagesIOError) { /* Lost ICE */ if (p_verbose > 0) verb_msg((char_u *)_("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((char_u *)_("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((char_u *)_("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), errorstring); if (xsmp.smcconn == NULL) { char errorreport[132]; if (p_verbose > 0) { vim_snprintf(errorreport, sizeof(errorreport), _("XSMP SmcOpenConnection failed: %s"), errorstring); verb_msg((char_u *)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() { 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