Mercurial > vim
view src/os_amiga.c @ 17417:aa4532c1d001 v8.1.1707
patch 8.1.1707: Coverity warns for possibly using a NULL pointer
commit https://github.com/vim/vim/commit/cfdbc5adde49cbab939e8164555ed0b8d9ce000b
Author: Bram Moolenaar <Bram@vim.org>
Date: Wed Jul 17 21:27:52 2019 +0200
patch 8.1.1707: Coverity warns for possibly using a NULL pointer
Problem: Coverity warns for possibly using a NULL pointer.
Solution: Change the logic to make sure no NULL pointer is used.
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Wed, 17 Jul 2019 21:30:04 +0200 |
parents | 9185ba71aae6 |
children | b25f81a18616 |
line wrap: on
line source
/* vi:set ts=8 sts=4 sw=4 noet: * * VIM - Vi IMproved by Bram Moolenaar * * 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_amiga.c * * Amiga system-dependent routines. */ #include "vim.h" #ifdef Window # undef Window /* Amiga has its own Window definition */ #endif #undef TRUE /* will be redefined by exec/types.h */ #undef FALSE /* cproto fails on missing include files, skip them */ #ifndef PROTO #ifndef LATTICE # include <exec/types.h> # include <exec/exec.h> # include <libraries/dos.h> # include <intuition/intuition.h> #endif /* XXX These are included from os_amiga.h #include <proto/exec.h> #include <proto/dos.h> #include <proto/intuition.h> */ #include <exec/memory.h> #include <libraries/dosextens.h> #include <dos/dostags.h> /* for 2.0 functions */ #include <dos/dosasl.h> /* From version 4 of AmigaOS, several system structures must be allocated * and freed using system functions. "struct AnchorPath" is one. */ #ifdef __amigaos4__ # include <dos/anchorpath.h> # define free_fib(x) FreeDosObject(DOS_FIB, x) #else # define free_fib(x) vim_free(fib) #endif #if defined(LATTICE) && !defined(SASC) && defined(FEAT_ARP) # include <libraries/arp_pragmas.h> #endif #endif /* PROTO */ /* * Set stack size to 1 MiB on NG systems. This should be enough even for * hungry syntax HL / plugin combinations. Leave the stack alone on OS 3 * and below, those systems might be low on memory. */ #if defined(__amigaos4__) static const char* __attribute__((used)) stackcookie = "$STACK: 1048576"; #elif defined(__AROS__) || defined(__MORPHOS__) unsigned long __stack = 1048576; #endif /* * At this point TRUE and FALSE are defined as 1L and 0L, but we want 1 and 0. */ #undef TRUE #define TRUE (1) #undef FALSE #define FALSE (0) #ifdef __amigaos4__ # define dos_packet(a, b, c) DoPkt(a, b, c, 0, 0, 0, 0) #elif !defined(AZTEC_C) && !defined(__AROS__) static long dos_packet(struct MsgPort *, long, long); #endif static int lock2name(BPTR lock, char_u *buf, long len); static void out_num(long n); static struct FileInfoBlock *get_fib(char_u *); static int sortcmp(const void *a, const void *b); static BPTR raw_in = (BPTR)NULL; static BPTR raw_out = (BPTR)NULL; static int close_win = FALSE; /* set if Vim opened the window */ #ifndef __amigaos4__ /* Use autoopen for AmigaOS4 */ struct IntuitionBase *IntuitionBase = NULL; #endif #ifdef FEAT_ARP struct ArpBase *ArpBase = NULL; #endif static struct Window *wb_window; static char_u *oldwindowtitle = NULL; #ifdef FEAT_ARP int dos2 = FALSE; /* Amiga DOS 2.0x or higher */ #endif int size_set = FALSE; /* set to TRUE if window size was set */ void win_resize_on(void) { OUT_STR_NF("\033[12{"); } void win_resize_off(void) { OUT_STR_NF("\033[12}"); } void mch_write(char_u *p, int len) { Write(raw_out, (char *)p, (long)len); } /* * mch_inchar(): low level input function. * Get a characters from the keyboard. * If time == 0 do not wait for characters. * If time == n wait a short time for characters. * If time == -1 wait forever for characters. * * Return number of characters read. */ int mch_inchar( char_u *buf, int maxlen, long time, /* milli seconds */ int tb_change_cnt) { int len; long utime; if (time >= 0) { if (time == 0) utime = 100L; /* time = 0 causes problems in DOS 1.2 */ else utime = time * 1000L; /* convert from milli to micro secs */ if (WaitForChar(raw_in, utime) == 0) /* no character available */ return 0; } else /* time == -1 */ { /* * If there is no character available within 2 seconds (default) * write the autoscript file to disk. Or cause the CursorHold event * to be triggered. */ if (WaitForChar(raw_in, p_ut * 1000L) == 0) { if (trigger_cursorhold() && maxlen >= 3) { buf[0] = K_SPECIAL; buf[1] = KS_EXTRA; buf[2] = (int)KE_CURSORHOLD; return 3; } before_blocking(); } } for (;;) /* repeat until we got a character */ { len = Read(raw_in, (char *)buf, (long)maxlen / input_conv.vc_factor); if (len > 0) { /* Convert from 'termencoding' to 'encoding'. */ if (input_conv.vc_type != CONV_NONE) len = convert_input(buf, len, maxlen); return len; } } } /* * return non-zero if a character is available */ int mch_char_avail(void) { return (WaitForChar(raw_in, 100L) != 0); } /* * Return amount of memory still available in Kbyte. */ long_u mch_avail_mem(int special) { #ifdef __amigaos4__ return (long_u)AvailMem(MEMF_ANY) >> 10; #else return (long_u)(AvailMem(special ? (long)MEMF_CHIP : (long)MEMF_ANY)) >> 10; #endif } /* * Waits a specified amount of time, or until input arrives if * ignoreinput is FALSE. */ void mch_delay(long msec, int ignoreinput) { #ifndef LATTICE /* SAS declares void Delay(ULONG) */ void Delay(long); #endif if (msec > 0) { if (ignoreinput) Delay(msec / 20L); /* Delay works with 20 msec intervals */ else WaitForChar(raw_in, msec * 1000L); } } /* * We have no job control, fake it by starting a new shell. */ void mch_suspend(void) { suspend_shell(); } #ifndef DOS_LIBRARY # define DOS_LIBRARY ((UBYTE *)"dos.library") #endif void mch_init(void) { static char intlibname[] = "intuition.library"; #ifdef AZTEC_C Enable_Abort = 0; /* disallow vim to be aborted */ #endif Columns = 80; Rows = 24; /* * Set input and output channels, unless we have opened our own window */ if (raw_in == (BPTR)NULL) { raw_in = Input(); raw_out = Output(); /* * If Input() is not interactive, then Output() will be (because of * check in mch_check_win()). Used for "Vim -". * Also check the other way around, for "Vim -h | more". */ if (!IsInteractive(raw_in)) raw_in = raw_out; else if (!IsInteractive(raw_out)) raw_out = raw_in; } out_flush(); wb_window = NULL; #ifndef __amigaos4__ if ((IntuitionBase = (struct IntuitionBase *) OpenLibrary((UBYTE *)intlibname, 0L)) == NULL) { mch_errmsg(_("cannot open ")); mch_errmsg(intlibname); mch_errmsg("!?\n"); mch_exit(3); } #endif } #ifndef PROTO # include <workbench/startup.h> #endif /* * Check_win checks whether we have an interactive window. * If not, a new window is opened with the newcli command. * If we would open a window ourselves, the :sh and :! commands would not * work properly (Why? probably because we are then running in a background * CLI). This also is the best way to assure proper working in a next * Workbench release. * * For the -f option (foreground mode) we open our own window and disable :sh. * Otherwise the calling program would never know when editing is finished. */ #define BUF2SIZE 320 /* length of buffer for argument with complete path */ int mch_check_win(int argc, char **argv) { int i; BPTR nilfh, fh; char_u buf1[24]; char_u buf2[BUF2SIZE]; static char_u *(constrings[3]) = {(char_u *)"con:0/0/662/210/", (char_u *)"con:0/0/640/200/", (char_u *)"con:0/0/320/200/"}; static char_u *winerr = (char_u *)N_("VIM: Can't open window!\n"); struct WBArg *argp; int ac; char *av; char_u *device = NULL; int exitval = 4; #ifndef __amigaos4__ struct Library *DosBase; #endif int usewin = FALSE; /* * check if we are running under DOS 2.0x or higher */ #ifndef __amigaos4__ DosBase = OpenLibrary(DOS_LIBRARY, 37L); if (DosBase != NULL) /* if (((struct Library *)DOSBase)->lib_Version >= 37) */ { CloseLibrary(DosBase); # ifdef FEAT_ARP dos2 = TRUE; # endif } else /* without arp functions we NEED 2.0 */ { # ifndef FEAT_ARP mch_errmsg(_("Need Amigados version 2.04 or later\n")); exit(3); # else /* need arp functions for dos 1.x */ if (!(ArpBase = (struct ArpBase *) OpenLibrary((UBYTE *)ArpName, ArpVersion))) { fprintf(stderr, _("Need %s version %ld\n"), ArpName, ArpVersion); exit(3); } # endif } #endif /* __amigaos4__ */ /* * scan argv[] for the "-f" and "-d" arguments */ for (i = 1; i < argc; ++i) if (argv[i][0] == '-') { switch (argv[i][1]) { case 'f': usewin = TRUE; break; case 'd': if (i < argc - 1 #ifdef FEAT_DIFF /* require using "-dev", "-d" means diff mode */ && argv[i][2] == 'e' && argv[i][3] == 'v' #endif ) device = (char_u *)argv[i + 1]; break; } } /* * If we were not started from workbench, do not have a "-d" or "-dev" * argument and we have been started with an interactive window, use that * window. */ if (argc != 0 && device == NULL && (IsInteractive(Input()) || IsInteractive(Output()))) return OK; /* * When given the "-f" argument, we open our own window. We can't use the * newcli trick below, because the calling program (mail, rn, etc.) would not * know when we are finished. */ if (usewin) { /* * Try to open a window. First try the specified device. * Then try a 24 line 80 column window. * If that fails, try two smaller ones. */ for (i = -1; i < 3; ++i) { if (i >= 0) device = constrings[i]; if (device != NULL && (raw_in = Open((UBYTE *)device, (long)MODE_NEWFILE)) != (BPTR)NULL) break; } if (raw_in == (BPTR)NULL) /* all three failed */ { mch_errmsg(_(winerr)); goto exit; } raw_out = raw_in; close_win = TRUE; return OK; } if ((nilfh = Open((UBYTE *)"NIL:", (long)MODE_NEWFILE)) == (BPTR)NULL) { mch_errmsg(_("Cannot open NIL:\n")); goto exit; } /* * Make a unique name for the temp file (which we will not delete!). * Use a pointer on the stack (nobody else will be using it). * Under AmigaOS4, this assumption might change in the future, so * we use a pointer to the current task instead. This should be a * shared structure and thus globally unique. */ #ifdef __amigaos4__ sprintf((char *)buf1, "t:nc%p", FindTask(0)); #else sprintf((char *)buf1, "t:nc%ld", (long)buf1); #endif if ((fh = Open((UBYTE *)buf1, (long)MODE_NEWFILE)) == (BPTR)NULL) { mch_errmsg(_("Cannot create ")); mch_errmsg((char *)buf1); mch_errmsg("\n"); goto exit; } /* * Write the command into the file, put quotes around the arguments that * have a space in them. */ if (argc == 0) /* run from workbench */ ac = ((struct WBStartup *)argv)->sm_NumArgs; else ac = argc; for (i = 0; i < ac; ++i) { if (argc == 0) { *buf2 = NUL; argp = &(((struct WBStartup *)argv)->sm_ArgList[i]); if (argp->wa_Lock) (void)lock2name(argp->wa_Lock, buf2, (long)(BUF2SIZE - 1)); #ifdef FEAT_ARP if (dos2) /* use 2.0 function */ #endif AddPart((UBYTE *)buf2, (UBYTE *)argp->wa_Name, (long)(BUF2SIZE - 1)); #ifdef FEAT_ARP else /* use arp function */ TackOn((char *)buf2, argp->wa_Name); #endif av = (char *)buf2; } else av = argv[i]; /* skip '-d' or "-dev" option */ if (av[0] == '-' && av[1] == 'd' #ifdef FEAT_DIFF && av[2] == 'e' && av[3] == 'v' #endif ) { ++i; continue; } if (vim_strchr((char_u *)av, ' ')) Write(fh, "\"", 1L); Write(fh, av, (long)strlen(av)); if (vim_strchr((char_u *)av, ' ')) Write(fh, "\"", 1L); Write(fh, " ", 1L); } Write(fh, "\nendcli\n", 8L); Close(fh); /* * Try to open a new cli in a window. If "-d" or "-dev" argument was given try * to open the specified device. Then try a 24 line 80 column window. If that * fails, try two smaller ones. */ for (i = -1; i < 3; ++i) { if (i >= 0) device = constrings[i]; else if (device == NULL) continue; sprintf((char *)buf2, "newcli <nil: >nil: %s from %s", (char *)device, (char *)buf1); #ifdef FEAT_ARP if (dos2) { #endif if (!SystemTags((UBYTE *)buf2, SYS_UserShell, TRUE, TAG_DONE)) break; #ifdef FEAT_ARP } else { if (Execute((UBYTE *)buf2, nilfh, nilfh)) break; } #endif } if (i == 3) /* all three failed */ { DeleteFile((UBYTE *)buf1); mch_errmsg(_(winerr)); goto exit; } exitval = 0; /* The Execute succeeded: exit this program */ exit: #ifdef FEAT_ARP if (ArpBase) CloseLibrary((struct Library *) ArpBase); #endif exit(exitval); /* NOTREACHED */ return FAIL; } /* * Return TRUE if the input comes from a terminal, FALSE otherwise. * We fake there is a window, because we can always open one! */ int mch_input_isatty(void) { return TRUE; } /* * fname_case(): Set the case of the file name, if it already exists. * This will cause the file name to remain exactly the same * if the file system ignores, but preserves case. */ /*ARGSUSED*/ void fname_case( char_u *name, int len) /* buffer size, ignored here */ { struct FileInfoBlock *fib; size_t flen; fib = get_fib(name); if (fib != NULL) { flen = STRLEN(name); /* TODO: Check if this fix applies to AmigaOS < 4 too.*/ #ifdef __amigaos4__ if (fib->fib_DirEntryType == ST_ROOT) strcat(fib->fib_FileName, ":"); #endif if (flen == strlen(fib->fib_FileName)) /* safety check */ mch_memmove(name, fib->fib_FileName, flen); free_fib(fib); } } /* * Get the FileInfoBlock for file "fname" * The returned structure has to be free()d. * Returns NULL on error. */ static struct FileInfoBlock * get_fib(char_u *fname) { BPTR flock; struct FileInfoBlock *fib; if (fname == NULL) /* safety check */ return NULL; #ifdef __amigaos4__ fib = AllocDosObject(DOS_FIB,0); #else fib = ALLOC_ONE(struct FileInfoBlock); #endif if (fib != NULL) { flock = Lock((UBYTE *)fname, (long)ACCESS_READ); if (flock == (BPTR)NULL || !Examine(flock, fib)) { free_fib(fib); /* in case of an error the memory is freed here */ fib = NULL; } if (flock) UnLock(flock); } return fib; } #ifdef FEAT_TITLE /* * set the title of our window * icon name is not set */ void mch_settitle(char_u *title, char_u *icon) { if (wb_window != NULL && title != NULL) SetWindowTitles(wb_window, (UBYTE *)title, (UBYTE *)-1L); } /* * Restore the window/icon title. * which is one of: * SAVE_RESTORE_TITLE Just restore title * SAVE_RESTORE_ICON Just restore icon (which we don't have) * SAVE_RESTORE_BOTH Restore title and icon (which we don't have) */ void mch_restore_title(int which) { if (which & SAVE_RESTORE_TITLE) mch_settitle(oldwindowtitle, NULL); } int mch_can_restore_title(void) { return (wb_window != NULL); } int mch_can_restore_icon(void) { return FALSE; } #endif /* * Insert user name in s[len]. */ int mch_get_user_name(char_u *s, int len) { /* TODO: Implement this. */ *s = NUL; return FAIL; } /* * Insert host name is s[len]. */ void mch_get_host_name(char_u *s, int len) { #if defined(__amigaos4__) && defined(__CLIB2__) gethostname(s, len); #else vim_strncpy(s, "Amiga", len - 1); #endif } /* * return process ID */ long mch_get_pid(void) { #ifdef __amigaos4__ /* This is as close to a pid as we can come. We could use CLI numbers also, * but then we would have two different types of process identifiers. */ return((long)FindTask(0)); #else return (long)0; #endif } /* * Get name of current directory into buffer 'buf' of length 'len' bytes. * Return OK for success, FAIL for failure. */ int mch_dirname(char_u *buf, int len) { return mch_FullName((char_u *)"", buf, len, FALSE); } /* * get absolute file name into buffer 'buf' of length 'len' bytes * * return FAIL for failure, OK otherwise */ int mch_FullName( char_u *fname, char_u *buf, int len, int force) { BPTR l; int retval = FAIL; int i; /* Lock the file. If it exists, we can get the exact name. */ if ((l = Lock((UBYTE *)fname, (long)ACCESS_READ)) != (BPTR)0) { retval = lock2name(l, buf, (long)len - 1); UnLock(l); } else if (force || !mch_isFullName(fname)) /* not a full path yet */ { /* * If the file cannot be locked (doesn't exist), try to lock the * current directory and concatenate the file name. */ if ((l = Lock((UBYTE *)"", (long)ACCESS_READ)) != (BPTR)NULL) { retval = lock2name(l, buf, (long)len); UnLock(l); if (retval == OK) { i = STRLEN(buf); /* Concatenate the fname to the directory. Don't add a slash * if fname is empty, but do change "" to "/". */ if (i == 0 || *fname != NUL) { if (i < len - 1 && (i == 0 || buf[i - 1] != ':')) buf[i++] = '/'; vim_strncpy(buf + i, fname, len - i - 1); } } } } if (*buf == 0 || *buf == ':') retval = FAIL; /* something failed; use the file name */ return retval; } /* * Return TRUE if "fname" does not depend on the current directory. */ int mch_isFullName(char_u *fname) { return (vim_strchr(fname, ':') != NULL && *fname != ':'); } /* * Get the full file name from a lock. Use 2.0 function if possible, because * the arp function has more restrictions on the path length. * * return FAIL for failure, OK otherwise */ static int lock2name(BPTR lock, char_u *buf, long len) { #ifdef FEAT_ARP if (dos2) /* use 2.0 function */ #endif return ((int)NameFromLock(lock, (UBYTE *)buf, len) ? OK : FAIL); #ifdef FEAT_ARP else /* use arp function */ return ((int)PathName(lock, (char *)buf, (long)(len/32)) ? OK : FAIL); #endif } /* * get file permissions for 'name' * Returns -1 when it doesn't exist. */ long mch_getperm(char_u *name) { struct FileInfoBlock *fib; long retval = -1; fib = get_fib(name); if (fib != NULL) { retval = fib->fib_Protection; free_fib(fib); } return retval; } /* * set file permission for 'name' to 'perm' * * return FAIL for failure, OK otherwise */ int mch_setperm(char_u *name, long perm) { perm &= ~FIBF_ARCHIVE; /* reset archived bit */ return (SetProtection((UBYTE *)name, (long)perm) ? OK : FAIL); } /* * Set hidden flag for "name". */ void mch_hide(char_u *name) { /* can't hide a file */ } /* * return FALSE if "name" is not a directory * return TRUE if "name" is a directory. * return FALSE for error. */ int mch_isdir(char_u *name) { struct FileInfoBlock *fib; int retval = FALSE; fib = get_fib(name); if (fib != NULL) { #ifdef __amigaos4__ retval = (FIB_IS_DRAWER(fib)) ? TRUE : FALSE; #else retval = ((fib->fib_DirEntryType >= 0) ? TRUE : FALSE); #endif free_fib(fib); } return retval; } /* * Create directory "name". */ int mch_mkdir(char_u *name) { BPTR lock; lock = CreateDir(name); if (lock != NULL) { UnLock(lock); return 0; } return -1; } /* * Return 1 if "name" can be executed, 0 if not. * If "use_path" is FALSE only check if "name" is executable. * Return -1 if unknown. */ int mch_can_exe(char_u *name, char_u **path, int use_path) { /* TODO */ return -1; } /* * Check what "name" is: * NODE_NORMAL: file or directory (or doesn't exist) * NODE_WRITABLE: writable device, socket, fifo, etc. * NODE_OTHER: non-writable things */ int mch_nodetype(char_u *name) { /* TODO */ return NODE_NORMAL; } void mch_early_init(void) { } /* * Careful: mch_exit() may be called before mch_init()! */ void mch_exit(int r) { exiting = TRUE; if (raw_in) /* put terminal in 'normal' mode */ { settmode(TMODE_COOK); stoptermcap(); } out_char('\n'); if (raw_out) { if (term_console) { win_resize_off(); /* window resize events de-activated */ if (size_set) OUT_STR("\233t\233u"); /* reset window size (CSI t CSI u) */ } out_flush(); } #ifdef FEAT_TITLE mch_restore_title(SAVE_RESTORE_BOTH); /* restore window title */ #endif ml_close_all(TRUE); /* remove all memfiles */ #ifdef FEAT_ARP if (ArpBase) CloseLibrary((struct Library *) ArpBase); #endif if (close_win) Close(raw_in); if (r) printf(_("Vim exiting with %d\n"), r); /* somehow this makes :cq work!? */ exit(r); } /* * This is a routine for setting a given stream to raw or cooked mode on the * Amiga . This is useful when you are using Lattice C to produce programs * that want to read single characters with the "getch()" or "fgetc" call. * * Written : 18-Jun-87 By Chuck McManis. */ #define MP(xx) ((struct MsgPort *)((struct FileHandle *) (BADDR(xx)))->fh_Type) /* * Function mch_settmode() - Convert the specified file pointer to 'raw' or * 'cooked' mode. This only works on TTY's. * * Raw: keeps DOS from translating keys for you, also (BIG WIN) it means * getch() will return immediately rather than wait for a return. You * lose editing features though. * * Cooked: This function returns the designate file pointer to its normal, * wait for a <CR> mode. This is exactly like raw() except that * it sends a 0 to the console to make it back into a CON: from a RAW: */ void mch_settmode(int tmode) { #if defined(__AROS__) || defined(__amigaos4__) if (!SetMode(raw_in, tmode == TMODE_RAW ? 1 : 0)) #else if (dos_packet(MP(raw_in), (long)ACTION_SCREEN_MODE, tmode == TMODE_RAW ? -1L : 0L) == 0) #endif mch_errmsg(_("cannot change console mode ?!\n")); } /* * set screen mode, always fails. */ int mch_screenmode(char_u *arg) { emsg(_(e_screenmode)); return FAIL; } /* * Code for this routine came from the following : * * ConPackets.c - C. Scheppner, A. Finkel, P. Lindsay CBM * DOS packet example * Requires 1.2 * * Found on Fish Disk 56. * * Heavely modified by mool. */ #ifndef PROTO # include <devices/conunit.h> #endif /* * try to get the real window size * return FAIL for failure, OK otherwise */ int mch_get_shellsize(void) { struct ConUnit *conUnit; #ifndef __amigaos4__ char id_a[sizeof(struct InfoData) + 3]; #endif struct InfoData *id=0; if (!term_console) /* not an amiga window */ goto out; /* insure longword alignment */ #ifdef __amigaos4__ if (!(id = AllocDosObject(DOS_INFODATA, 0))) goto out; #else id = (struct InfoData *)(((long)id_a + 3L) & ~3L); #endif /* * Should make console aware of real window size, not the one we set. * Unfortunately, under DOS 2.0x this redraws the window and it * is rarely needed, so we skip it now, unless we changed the size. */ if (size_set) OUT_STR("\233t\233u"); /* CSI t CSI u */ out_flush(); #ifdef __AROS__ if (!Info(raw_out, id) || (wb_window = (struct Window *) id->id_VolumeNode) == NULL) #else if (dos_packet(MP(raw_out), (long)ACTION_DISK_INFO, ((ULONG) id) >> 2) == 0 || (wb_window = (struct Window *)id->id_VolumeNode) == NULL) #endif { /* it's not an amiga window, maybe aux device */ /* terminal type should be set */ term_console = FALSE; goto out; } if (oldwindowtitle == NULL) oldwindowtitle = (char_u *)wb_window->Title; if (id->id_InUse == (BPTR)NULL) { mch_errmsg(_("mch_get_shellsize: not a console??\n")); return FAIL; } conUnit = (struct ConUnit *) ((struct IOStdReq *) id->id_InUse)->io_Unit; /* get window size */ Rows = conUnit->cu_YMax + 1; Columns = conUnit->cu_XMax + 1; if (Rows < 0 || Rows > 200) /* cannot be an amiga window */ { Columns = 80; Rows = 24; term_console = FALSE; return FAIL; } return OK; out: #ifdef __amigaos4__ FreeDosObject(DOS_INFODATA, id); /* Safe to pass NULL */ #endif return FAIL; } /* * Try to set the real window size to Rows and Columns. */ void mch_set_shellsize(void) { if (term_console) { size_set = TRUE; out_char(CSI); out_num((long)Rows); out_char('t'); out_char(CSI); out_num((long)Columns); out_char('u'); out_flush(); } } /* * Rows and/or Columns has changed. */ void mch_new_shellsize(void) { /* Nothing to do. */ } /* * out_num - output a (big) number fast */ static void out_num(long n) { OUT_STR_NF(tltoa((unsigned long)n)); } #if !defined(AZTEC_C) && !defined(__AROS__) && !defined(__amigaos4__) /* * Sendpacket.c * * An invaluable addition to your Amiga.lib file. This code sends a packet to * the given message port. This makes working around DOS lots easier. * * Note, I didn't write this, those wonderful folks at CBM did. I do suggest * however that you may wish to add it to Amiga.Lib, to do so, compile it and * say 'oml lib:amiga.lib -r sendpacket.o' */ #ifndef PROTO /* #include <proto/exec.h> */ /* #include <proto/dos.h> */ # include <exec/memory.h> #endif /* * Function - dos_packet written by Phil Lindsay, Carolyn Scheppner, and Andy * Finkel. This function will send a packet of the given type to the Message * Port supplied. */ static long dos_packet( struct MsgPort *pid, /* process identifier ... (handlers message port) */ long action, /* packet type ... (what you want handler to do) */ long arg) /* single argument */ { # ifdef FEAT_ARP struct MsgPort *replyport; struct StandardPacket *packet; long res1; if (dos2) # endif return DoPkt(pid, action, arg, 0L, 0L, 0L, 0L); /* use 2.0 function */ # ifdef FEAT_ARP replyport = (struct MsgPort *) CreatePort(NULL, 0); /* use arp function */ if (!replyport) return (0); /* Allocate space for a packet, make it public and clear it */ packet = (struct StandardPacket *) AllocMem((long) sizeof(struct StandardPacket), MEMF_PUBLIC | MEMF_CLEAR); if (!packet) { DeletePort(replyport); return (0); } packet->sp_Msg.mn_Node.ln_Name = (char *) &(packet->sp_Pkt); packet->sp_Pkt.dp_Link = &(packet->sp_Msg); packet->sp_Pkt.dp_Port = replyport; packet->sp_Pkt.dp_Type = action; packet->sp_Pkt.dp_Arg1 = arg; PutMsg(pid, (struct Message *)packet); /* send packet */ WaitPort(replyport); GetMsg(replyport); res1 = packet->sp_Pkt.dp_Res1; FreeMem(packet, (long) sizeof(struct StandardPacket)); DeletePort(replyport); return (res1); # endif } #endif /* !defined(AZTEC_C) && !defined(__AROS__) */ /* * Call shell. * Return error number for failure, 0 otherwise */ int mch_call_shell( char_u *cmd, int options) /* SHELL_*, see vim.h */ { BPTR mydir; int x; int tmode = cur_tmode; #ifdef AZTEC_C int use_execute; char_u *shellcmd = NULL; char_u *shellarg; #endif int retval = 0; if (close_win) { /* if Vim opened a window: Executing a shell may cause crashes */ emsg(_("E360: Cannot execute shell with -f option")); return -1; } if (term_console) win_resize_off(); /* window resize events de-activated */ out_flush(); if (options & SHELL_COOKED) settmode(TMODE_COOK); /* set to normal mode */ mydir = Lock((UBYTE *)"", (long)ACCESS_READ); /* remember current dir */ #if !defined(AZTEC_C) /* not tested very much */ if (cmd == NULL) { # ifdef FEAT_ARP if (dos2) # endif x = SystemTags(p_sh, SYS_UserShell, TRUE, TAG_DONE); # ifdef FEAT_ARP else x = Execute(p_sh, raw_in, raw_out); # endif } else { # ifdef FEAT_ARP if (dos2) # endif x = SystemTags((char *)cmd, SYS_UserShell, TRUE, TAG_DONE); # ifdef FEAT_ARP else x = Execute((char *)cmd, 0L, raw_out); # endif } # ifdef FEAT_ARP if ((dos2 && x < 0) || (!dos2 && !x)) # else if (x < 0) # endif { msg_puts(_("Cannot execute ")); if (cmd == NULL) { msg_puts(_("shell ")); msg_outtrans(p_sh); } else msg_outtrans(cmd); msg_putchar('\n'); retval = -1; } # ifdef FEAT_ARP else if (!dos2 || x) # else else if (x) # endif { if ((x = IoErr()) != 0) { if (!(options & SHELL_SILENT)) { msg_putchar('\n'); msg_outnum((long)x); msg_puts(_(" returned\n")); } retval = x; } } #else /* else part is for AZTEC_C */ if (p_st >= 4 || (p_st >= 2 && !(options & SHELL_FILTER))) use_execute = 1; else use_execute = 0; if (!use_execute) { /* * separate shell name from argument */ shellcmd = vim_strsave(p_sh); if (shellcmd == NULL) /* out of memory, use Execute */ use_execute = 1; else { shellarg = skiptowhite(shellcmd); /* find start of arguments */ if (*shellarg != NUL) { *shellarg++ = NUL; shellarg = skipwhite(shellarg); } } } if (cmd == NULL) { if (use_execute) { # ifdef FEAT_ARP if (dos2) # endif x = SystemTags((UBYTE *)p_sh, SYS_UserShell, TRUE, TAG_DONE); # ifdef FEAT_ARP else x = !Execute((UBYTE *)p_sh, raw_in, raw_out); # endif } else x = fexecl((char *)shellcmd, (char *)shellcmd, (char *)shellarg, NULL); } else if (use_execute) { # ifdef FEAT_ARP if (dos2) # endif x = SystemTags((UBYTE *)cmd, SYS_UserShell, TRUE, TAG_DONE); # ifdef FEAT_ARP else x = !Execute((UBYTE *)cmd, 0L, raw_out); # endif } else if (p_st & 1) x = fexecl((char *)shellcmd, (char *)shellcmd, (char *)shellarg, (char *)cmd, NULL); else x = fexecl((char *)shellcmd, (char *)shellcmd, (char *)shellarg, (char *)p_shcf, (char *)cmd, NULL); # ifdef FEAT_ARP if ((dos2 && x < 0) || (!dos2 && x)) # else if (x < 0) # endif { msg_puts(_("Cannot execute ")); if (use_execute) { if (cmd == NULL) msg_outtrans(p_sh); else msg_outtrans(cmd); } else { msg_puts(_("shell ")); msg_outtrans(shellcmd); } msg_putchar('\n'); retval = -1; } else { if (use_execute) { # ifdef FEAT_ARP if (!dos2 || x) # else if (x) # endif x = IoErr(); } else x = wait(); if (x) { if (!(options & SHELL_SILENT) && !emsg_silent) { msg_putchar('\n'); msg_outnum((long)x); msg_puts(_(" returned\n")); } retval = x; } } vim_free(shellcmd); #endif /* AZTEC_C */ if ((mydir = CurrentDir(mydir)) != 0) /* make sure we stay in the same directory */ UnLock(mydir); if (tmode == TMODE_RAW) settmode(TMODE_RAW); /* set to raw mode */ #ifdef FEAT_TITLE resettitle(); #endif if (term_console) win_resize_on(); /* window resize events activated */ return retval; } /* * check for an "interrupt signal" * We only react to a CTRL-C, but also clear the other break signals to avoid * trouble with lattice-c programs. */ void mch_breakcheck(int force) { if (SetSignal(0L, (long)(SIGBREAKF_CTRL_C|SIGBREAKF_CTRL_D|SIGBREAKF_CTRL_E|SIGBREAKF_CTRL_F)) & SIGBREAKF_CTRL_C) got_int = TRUE; } /* this routine causes manx to use this Chk_Abort() rather than its own */ /* otherwise it resets our ^C when doing any I/O (even when Enable_Abort */ /* is zero). Since we want to check for our own ^C's */ #ifdef _DCC #define Chk_Abort chkabort #endif #ifdef LATTICE void __regargs __chkabort(void); void __regargs __chkabort(void) {} #else long Chk_Abort(void) { return(0L); } #endif /* * mch_expandpath() - this code does wild-card pattern matching using the arp * routines. * * "pat" has backslashes before chars that are not to be expanded. * Returns the number of matches found. * * This is based on WildDemo2.c (found in arp1.1 distribution). * That code's copyright follows: * Copyright (c) 1987, Scott Ballantyne * Use and abuse as you please. */ #ifdef __amigaos4__ # define ANCHOR_BUF_SIZE 1024 #else # define ANCHOR_BUF_SIZE (512) # define ANCHOR_SIZE (sizeof(struct AnchorPath) + ANCHOR_BUF_SIZE) #endif int mch_expandpath( garray_T *gap, char_u *pat, int flags) /* EW_* flags */ { struct AnchorPath *Anchor; LONG Result; char_u *starbuf, *sp, *dp; int start_len; int matches; #ifdef __amigaos4__ struct TagItem AnchorTags[] = { {ADO_Strlen, ANCHOR_BUF_SIZE}, {ADO_Flags, APF_DODOT|APF_DOWILD|APF_MultiAssigns}, {TAG_DONE, 0L} }; #endif start_len = gap->ga_len; /* Get our AnchorBase */ #ifdef __amigaos4__ Anchor = AllocDosObject(DOS_ANCHORPATH, AnchorTags); #else Anchor = alloc_clear(ANCHOR_SIZE); #endif if (Anchor == NULL) return 0; #ifndef __amigaos4__ Anchor->ap_Strlen = ANCHOR_BUF_SIZE; /* ap_Length not supported anymore */ # ifdef APF_DODOT Anchor->ap_Flags = APF_DODOT | APF_DOWILD; /* allow '.' for current dir */ # else Anchor->ap_Flags = APF_DoDot | APF_DoWild; /* allow '.' for current dir */ # endif #endif #ifdef FEAT_ARP if (dos2) { #endif /* hack to replace '*' by '#?' */ starbuf = alloc(2 * STRLEN(pat) + 1); if (starbuf == NULL) goto Return; for (sp = pat, dp = starbuf; *sp; ++sp) { if (*sp == '*') { *dp++ = '#'; *dp++ = '?'; } else *dp++ = *sp; } *dp = NUL; Result = MatchFirst((UBYTE *)starbuf, Anchor); vim_free(starbuf); #ifdef FEAT_ARP } else Result = FindFirst((char *)pat, Anchor); #endif /* * Loop to get all matches. */ while (Result == 0) { #ifdef __amigaos4__ addfile(gap, (char_u *)Anchor->ap_Buffer, flags); #else addfile(gap, (char_u *)Anchor->ap_Buf, flags); #endif #ifdef FEAT_ARP if (dos2) #endif Result = MatchNext(Anchor); #ifdef FEAT_ARP else Result = FindNext(Anchor); #endif } matches = gap->ga_len - start_len; if (Result == ERROR_BUFFER_OVERFLOW) emsg(_("ANCHOR_BUF_SIZE too small.")); else if (matches == 0 && Result != ERROR_OBJECT_NOT_FOUND && Result != ERROR_DEVICE_NOT_MOUNTED && Result != ERROR_NO_MORE_ENTRIES) emsg(_("I/O ERROR")); /* * Sort the files for this pattern. */ if (matches) qsort((void *)(((char_u **)gap->ga_data) + start_len), (size_t)matches, sizeof(char_u *), sortcmp); /* Free the wildcard stuff */ #ifdef FEAT_ARP if (dos2) #endif MatchEnd(Anchor); #ifdef FEAT_ARP else FreeAnchorChain(Anchor); #endif Return: #ifdef __amigaos4__ FreeDosObject(DOS_ANCHORPATH, Anchor); #else vim_free(Anchor); #endif return matches; } static int sortcmp(const void *a, const void *b) { char *s = *(char **)a; char *t = *(char **)b; return pathcmp(s, t, -1); } /* * Return TRUE if "p" has wildcards that can be expanded by mch_expandpath(). */ int mch_has_exp_wildcard(char_u *p) { for ( ; *p; MB_PTR_ADV(p)) { if (*p == '\\' && p[1] != NUL) ++p; else if (vim_strchr((char_u *)"*?[(#", *p) != NULL) return TRUE; } return FALSE; } int mch_has_wildcard(char_u *p) { for ( ; *p; MB_PTR_ADV(p)) { if (*p == '\\' && p[1] != NUL) ++p; else if (vim_strchr((char_u *) # ifdef VIM_BACKTICK "*?[(#$`" # else "*?[(#$" # endif , *p) != NULL || (*p == '~' && p[1] != NUL)) return TRUE; } return FALSE; } /* * With AmigaDOS 2.0 support for reading local environment variables * * Two buffers are allocated: * - A big one to do the expansion into. It is freed before returning. * - A small one to hold the return value. It is kept until the next call. */ char_u * mch_getenv(char_u *var) { int len; UBYTE *buf; /* buffer to expand in */ char_u *retval; /* return value */ static char_u *alloced = NULL; /* allocated memory */ #ifdef FEAT_ARP if (!dos2) retval = (char_u *)getenv((char *)var); else #endif { VIM_CLEAR(alloced); retval = NULL; buf = alloc(IOSIZE); if (buf == NULL) return NULL; len = GetVar((UBYTE *)var, buf, (long)(IOSIZE - 1), (long)0); if (len >= 0) { retval = vim_strsave((char_u *)buf); alloced = retval; } vim_free(buf); } /* if $VIM is not defined, use "vim:" instead */ if (retval == NULL && STRCMP(var, "VIM") == 0) retval = (char_u *)"vim:"; return retval; } /* * Amiga version of setenv() with AmigaDOS 2.0 support. */ /* ARGSUSED */ int mch_setenv(char *var, char *value, int x) { #ifdef FEAT_ARP if (!dos2) return setenv(var, value); #endif if (SetVar((UBYTE *)var, (UBYTE *)value, (LONG)-1, (ULONG)GVF_LOCAL_ONLY)) return 0; /* success */ return -1; /* failure */ }