1 /* $Header: /p/tcsh/cvsroot/tcsh/sh.exec.c,v 3.75 2009/06/25 21:15:37 christos Exp $ */
3 * sh.exec.c: Search, find, and execute a command!
6 * Copyright (c) 1980, 1991 The Regents of the University of California.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 RCSID("$tcsh: sh.exec.c,v 3.75 2009/06/25 21:15:37 christos Exp $")
41 #endif /*WINNT_NATIVE*/
48 # define FASTHASH /* Fast hashing is the default */
52 * System level search and execute of a command.
53 * We look in each directory for the specified command name.
54 * If the name contains a '/' then we execute only the full path name.
55 * If there is no search path then we execute only full path names.
59 * As we search for the command we note the first non-trivial error
60 * message for presentation to the user. This allows us often
61 * to show that a file has the wrong mode/no access when the file
62 * is not in the last component of the search path, so we must
63 * go on after first detecting the error.
65 static char *exerr; /* Execution error message */
66 static Char *expath; /* Path for exerr */
69 * The two part hash function is designed to let texec() call the
70 * more expensive hashname() only once and the simple hash() several
71 * times (once for each path component checked).
72 * Byte size is assumed to be 8.
74 #define BITS_PER_BYTE 8
78 * xhash is an array of hash buckets which are used to hash execs. If
79 * it is allocated (havhash true), then to tell if ``name'' is
80 * (possibly) presend in the i'th component of the variable path, look
81 * at the [hashname(name)] bucket of size [hashwidth] bytes, in the [i
82 * mod size*8]'th bit. The cache size is defaults to a length of 1024
83 * buckets, each 1 byte wide. This implementation guarantees that
84 * objects n bytes wide will be aligned on n byte boundaries.
88 static unsigned long *xhash = NULL;
89 static unsigned int hashlength = 0, uhashlength = 0;
90 static unsigned int hashwidth = 0, uhashwidth = 0;
91 static int hashdebug = 0;
93 # define hash(a, b) (((a) * HSHMUL + (b)) % (hashlength))
94 # define widthof(t) (sizeof(t) * BITS_PER_BYTE)
95 # define tbit(f, i, t) (((t *) xhash)[(f)] & \
96 (1UL << (i & (widthof(t) - 1))))
97 # define tbis(f, i, t) (((t *) xhash)[(f)] |= \
98 (1UL << (i & (widthof(t) - 1))))
99 # define cbit(f, i) tbit(f, i, unsigned char)
100 # define cbis(f, i) tbis(f, i, unsigned char)
101 # define sbit(f, i) tbit(f, i, unsigned short)
102 # define sbis(f, i) tbis(f, i, unsigned short)
103 # define ibit(f, i) tbit(f, i, unsigned int)
104 # define ibis(f, i) tbis(f, i, unsigned int)
105 # define lbit(f, i) tbit(f, i, unsigned long)
106 # define lbis(f, i) tbis(f, i, unsigned long)
108 # define bit(f, i) (hashwidth==sizeof(unsigned char) ? cbit(f,i) : \
109 ((hashwidth==sizeof(unsigned short) ? sbit(f,i) : \
110 ((hashwidth==sizeof(unsigned int) ? ibit(f,i) : \
112 # define bis(f, i) (hashwidth==sizeof(unsigned char) ? cbis(f,i) : \
113 ((hashwidth==sizeof(unsigned short) ? sbis(f,i) : \
114 ((hashwidth==sizeof(unsigned int) ? ibis(f,i) : \
118 * Xhash is an array of HSHSIZ bits (HSHSIZ / 8 chars), which are used
119 * to hash execs. If it is allocated (havhash true), then to tell
120 * whether ``name'' is (possibly) present in the i'th component
121 * of the variable path, you look at the bit in xhash indexed by
122 * hash(hashname("name"), i). This is setup automatically
123 * after .login is executed, and recomputed whenever ``path'' is
126 # define HSHSIZ 8192 /* 1k bytes */
127 # define HSHMASK (HSHSIZ - 1)
129 static char xhash[HSHSIZ / BITS_PER_BYTE];
131 # define hash(a, b) (((a) * HSHMUL + (b)) & HSHMASK)
132 # define bit(h, b) ((h)[(b) >> 3] & 1 << ((b) & 7)) /* bit test */
133 # define bis(h, b) ((h)[(b) >> 3] |= 1 << ((b) & 7)) /* bit set */
135 #endif /* FASTHASH */
138 static int hits, misses;
141 /* Dummy search path for just absolute search when no path */
142 static Char *justabs[] = {STRNULL, 0};
144 static void pexerr (void);
145 static void texec (Char *, Char **);
146 int hashname (Char *);
147 static int iscommand (Char *);
150 doexec(struct command *t, int do_glob)
152 Char *dp, **pv, **av, *sav;
159 * Glob the command name. We will search $path even if this does something,
160 * as in sh but not in csh. One special case: if there is no PATH, then we
161 * execute only commands which start with '/'.
163 blk[0] = t->t_dcom[0];
169 pv = globall(blk, gflag);
171 setname(short2str(blk[0]));
172 stderror(ERR_NAME | ERR_NOMATCH);
177 cleanup_push(pv, blk_cleanup);
182 expath = Strsave(pv[0]);
188 if (v == 0 && expath[0] != '/' && expath[0] != '.')
190 slash = any(short2str(expath), '/');
193 * Glob the argument list, if necessary. Otherwise trim off the quote bits.
200 av = globall(av, gflag);
202 setname(short2str(expath));
203 stderror(ERR_NAME | ERR_NOMATCH);
212 t->t_dcom = blkspl(pv, av);
218 if (*av == NULL || **av == '\0')
221 xechoit(av); /* Echo command if -x */
224 * Since all internal file descriptors are set to close on exec, we don't
225 * need to close them explicitly here. Just reorient ourselves for error
232 isoutatty = isatty(SHOUT);
233 isdiagatty = isatty(SHDIAG);
235 closech(); /* Close random fd's */
238 * We must do this AFTER any possible forking (like `foo` in glob) so that
239 * this shell can still do subprocesses.
244 sigaddset(&set, SIGINT);
245 sigaddset(&set, SIGCHLD);
246 sigprocmask(SIG_UNBLOCK, &set, NULL);
252 * If no path, no words in path, or a / in the filename then restrict the
255 if (v == NULL || v->vec == NULL || v->vec[0] == NULL || slash)
259 sav = Strspl(STRslash, *av);/* / command name for postpending */
261 cleanup_push(sav, xfree);
265 hashval = havhash ? hashname(*av) : 0;
273 * Try to save time by looking at the hash table for where this command
274 * could be. If we are doing delayed hashing, then we put the names in
275 * one at a time, as the user enters them. This is kinda like Korn
276 * Shell's "tracked aliases".
278 if (!slash && ABSOLUTEP(pv[0]) && havhash) {
280 if (!bit(hashval, i))
283 int hashval1 = hash(hashval, i);
284 if (!bit(xhash, hashval1))
286 #endif /* FASTHASH */
288 if (pv[0][0] == 0 || eq(pv[0], STRdot)) /* don't make ./xxx */
291 dp = Strspl(*pv, sav);
293 cleanup_push(dp, xfree);
328 /* Couldn't find the damn thing */
330 setname(short2str(expath));
340 stderror(ERR_NAME | ERR_STRING, exerr);
341 stderror(ERR_NAME | ERR_COMMAND);
345 * Execute command f, arg list t.
346 * Record error message if not found.
347 * Also do shell scripts here.
350 texec(Char *sf, Char **st)
361 /* The order for the conversions is significant */
367 errno = 0; /* don't use a previous error */
370 * If we try to execute an nfs mounted directory on the apollo, we
371 * hang forever. So until apollo fixes that..
375 if (stat(f, &stb) == 0 && S_ISDIR(stb.st_mode))
381 #ifdef ISC_POSIX_EXEC_BUG
382 __setostype(0); /* "0" is "__OS_SYSV" in <sys/user.h> */
383 #endif /* ISC_POSIX_EXEC_BUG */
385 #ifdef ISC_POSIX_EXEC_BUG
386 __setostype(1); /* "1" is "__OS_POSIX" in <sys/user.h> */
387 #endif /* ISC_POSIX_EXEC_BUG */
392 blkfree((Char **) t);
398 #endif /* WINNT_NATIVE */
400 * From: casper@fwi.uva.nl (Casper H.S. Dik) If we could not execute
401 * it, don't feed it to the shell if it looks like a binary!
403 if ((fd = xopen(f, O_RDONLY|O_LARGEFILE)) != -1) {
405 if ((nread = xread(fd, pref, 2)) == 2) {
406 if (!isprint((unsigned char)pref[0]) &&
407 (pref[0] != '\n' && pref[0] != '\t')) {
413 * We *know* what ENOEXEC means.
415 stderror(ERR_ARCH, f, strerror(err));
418 else if (nread < 0) {
424 /* need to print error incase the file is migrated */
425 stderror(ERR_SYSTEM, f, strerror(err));
437 pref[0] != '#' || pref[1] != '!' || hashbang(fd, &vp) == -1) {
438 #endif /* HASHBANG */
440 * If there is an alias for shell, then put the words of the alias in
441 * front of the argument list replacing the command name. Note no
442 * interpretation of the words at this point.
444 v = adrof1(STRshell, &aliases);
445 if (v == NULL || v->vec == NULL) {
447 vp[0] = adrof(STRshell) ? varval(STRshell) : STR_SHELLPATH;
451 # ifndef ISC /* Compatible with ISC's /bin/csh */
460 vp = saveblk(v->vec);
463 #endif /* HASHBANG */
470 st = blkspl(vp, st); /* Splice up the new arglst */
473 /* The order for the conversions is significant */
477 blkfree((Char **) vp);
481 #ifdef ISC_POSIX_EXEC_BUG
482 __setostype(0); /* "0" is "__OS_SYSV" in <sys/user.h> */
483 #endif /* ISC_POSIX_EXEC_BUG */
485 #ifdef ISC_POSIX_EXEC_BUG
486 __setostype(1); /* "1" is "__OS_POSIX" in <sys/user.h> */
487 #endif /* ISC_POSIX_EXEC_BUG */
491 blkfree((Char **) t);
492 /* The sky is falling, the sky is falling! */
493 stderror(ERR_SYSTEM, f, strerror(errno));
497 stderror(ERR_SYSTEM, f, strerror(errno));
501 case 0: /* execv fails and returns 0! */
508 exerr = strerror(errno);
510 expath = Strsave(sf);
521 int saveIN, saveOUT, saveDIAG, saveSTD;
522 int SHIN, SHOUT, SHDIAG, OLDSTD;
524 #ifndef CLOSE_ON_EXEC
527 struct sigaction sigint, sigquit, sigterm;
531 execash_cleanup(void *xstate)
533 struct execash_state *state;
536 sigaction(SIGINT, &state->sigint, NULL);
537 sigaction(SIGQUIT, &state->sigquit, NULL);
538 sigaction(SIGTERM, &state->sigterm, NULL);
541 #ifndef CLOSE_ON_EXEC
542 didcch = state->didcch;
543 #endif /* CLOSE_ON_EXEC */
544 didfds = state->didfds;
549 close_on_exec(SHIN = dmove(state->saveIN, state->SHIN), 1);
550 close_on_exec(SHOUT = dmove(state->saveOUT, state->SHOUT), 1);
551 close_on_exec(SHDIAG = dmove(state->saveDIAG, state->SHDIAG), 1);
552 close_on_exec(OLDSTD = dmove(state->saveSTD, state->OLDSTD), 1);
557 execash(Char **t, struct command *kp)
559 struct execash_state state;
562 if (chkstop == 0 && setintr)
565 * Hmm, we don't really want to do that now because we might
566 * fail, but what is the choice
568 rechist(NULL, adrof(STRsavehist) != NULL);
571 sigaction(SIGINT, &parintr, &state.sigint);
572 sigaction(SIGQUIT, &parintr, &state.sigquit);
573 sigaction(SIGTERM, &parterm, &state.sigterm);
575 state.didfds = didfds;
576 #ifndef CLOSE_ON_EXEC
577 state.didcch = didcch;
578 #endif /* CLOSE_ON_EXEC */
581 state.SHDIAG = SHDIAG;
582 state.OLDSTD = OLDSTD;
584 (void)close_on_exec (state.saveIN = dcopy(SHIN, -1), 1);
585 (void)close_on_exec (state.saveOUT = dcopy(SHOUT, -1), 1);
586 (void)close_on_exec (state.saveDIAG = dcopy(SHDIAG, -1), 1);
587 (void)close_on_exec (state.saveSTD = dcopy(OLDSTD, -1), 1);
589 lshift(kp->t_dcom, 1);
591 (void)close_on_exec (SHIN = dcopy(0, -1), 1);
592 (void)close_on_exec (SHOUT = dcopy(1, -1), 1);
593 (void)close_on_exec (SHDIAG = dcopy(2, -1), 1);
594 #ifndef CLOSE_ON_EXEC
596 #endif /* CLOSE_ON_EXEC */
598 cleanup_push(&state, execash_cleanup);
601 * Decrement the shell level
606 #endif /* WINNT_NATIVE */
609 cleanup_until(&state);
615 if (adrof(STRecho)) {
616 int odidfds = didfds;
620 blkpr(t), xputchar('\n');
629 dohash(Char **vv, struct command *c)
637 struct varent *v = adrof(STRpath);
641 int is_windir; /* check if it is the windows directory */
643 #endif /* WINNT_NATIVE */
648 uhashlength = atoi(short2str(vv[1]));
650 uhashwidth = atoi(short2str(vv[2]));
651 if ((uhashwidth != sizeof(unsigned char)) &&
652 (uhashwidth != sizeof(unsigned short)) &&
653 (uhashwidth != sizeof(unsigned long)))
656 hashdebug = atoi(short2str(vv[3]));
661 hashwidth = uhashwidth;
666 for (pv = v->vec; pv && *pv; pv++, hashwidth++)
668 if (hashwidth <= widthof(unsigned char))
669 hashwidth = sizeof(unsigned char);
670 else if (hashwidth <= widthof(unsigned short))
671 hashwidth = sizeof(unsigned short);
672 else if (hashwidth <= widthof(unsigned int))
673 hashwidth = sizeof(unsigned int);
675 hashwidth = sizeof(unsigned long);
679 hashlength = uhashlength;
681 hashlength = hashwidth * (8*64);/* "average" files per dir in path */
684 xhash = xcalloc(hashlength * hashwidth, 1);
685 #endif /* FASTHASH */
687 (void) getusername(NULL); /* flush the tilde cashe */
692 for (pv = v->vec; pv && *pv; pv++, i++) {
693 if (!ABSOLUTEP(pv[0]))
695 dirp = opendir(short2str(*pv));
698 cleanup_push(dirp, opendir_cleanup);
699 #ifdef COMMENT /* this isn't needed. opendir won't open
701 if (fstat(dirp->dd_fd, &stb) < 0 || !S_ISDIR(stb.st_mode)) {
707 is_windir = nt_check_if_windir(short2str(*pv));
708 #endif /* WINNT_NATIVE */
709 while ((dp = readdir(dirp)) != NULL) {
712 if (dp->d_name[0] == '.' &&
713 (dp->d_name[1] == '\0' ||
714 (dp->d_name[1] == '.' && dp->d_name[2] == '\0')))
717 nt_check_name_and_hash(is_windir, dp->d_name, i);
718 #else /* !WINNT_NATIVE*/
719 #if defined(_UWIN) || defined(__CYGWIN__)
720 /* Turn foo.{exe,com,bat} into foo since UWIN's readdir returns
721 * the file with the .exe, .com, .bat extension
724 ssize_t ext = strlen(dp->d_name) - 4;
725 if ((ext > 0) && (strcasecmp(&dp->d_name[ext], ".exe") == 0 ||
726 strcasecmp(&dp->d_name[ext], ".bat") == 0 ||
727 strcasecmp(&dp->d_name[ext], ".com") == 0)) {
729 /* Also store the variation with extension. */
730 hashval = hashname(str2short(dp->d_name));
732 #endif /* __CYGWIN__ */
733 dp->d_name[ext] = '\0';
736 #endif /* _UWIN || __CYGWIN__ */
738 hashval = hashname(str2short(dp->d_name));
741 xprintf(CGETS(13, 1, "hash=%-4d dir=%-2d prog=%s\n"),
742 hashname(str2short(dp->d_name)), i, dp->d_name);
743 # else /* OLD HASH */
744 hashval = hash(hashname(str2short(dp->d_name)), i);
746 # endif /* FASTHASH */
747 /* tw_add_comm_name (dp->d_name); */
748 #endif /* WINNT_NATIVE */
756 dounhash(Char **v, struct command *c)
764 #endif /* FASTHASH */
769 hashstat(Char **v, struct command *c)
774 if (havhash && hashlength && hashwidth)
775 xprintf(CGETS(13, 2, "%d hash buckets of %d bits each\n"),
776 hashlength, hashwidth*8);
778 xprintf(CGETS(13, 3, "debug mask = 0x%08x\n"), hashdebug);
779 #endif /* FASTHASH */
782 xprintf(CGETS(13, 4, "%d hits, %d misses, %d%%\n"),
783 hits, misses, 100 * hits / (hits + misses));
789 * Hash a command name.
796 for (h = 0; *cp; cp++)
802 iscommand(Char *name)
807 int slash = any(short2str(name), '/');
811 if (v == NULL || v->vec == NULL || v->vec[0] == NULL || slash)
815 sav = Strspl(STRslash, name); /* / command name for postpending */
816 hashval = havhash ? hashname(name) : 0;
819 if (!slash && ABSOLUTEP(pv[0]) && havhash) {
821 if (!bit(hashval, i))
824 int hashval1 = hash(hashval, i);
825 if (!bit(xhash, hashval1))
827 #endif /* FASTHASH */
829 if (pv[0][0] == 0 || eq(pv[0], STRdot)) { /* don't make ./xxx */
830 if (executable(NULL, name, 0)) {
836 if (executable(*pv, sav, 0)) {
850 * Andreas Luik <luik@isaak.isa.de>
851 * I S A GmbH - Informationssysteme fuer computerintegrierte Automatisierung
855 * is the executable() routine below and changes to iscommand().
861 * executable() examines the pathname obtained by concatenating dir and name
862 * (dir may be NULL), and returns 1 either if it is executable by us, or
863 * if dir_ok is set and the pathname refers to a directory.
864 * This is a bit kludgy, but in the name of optimization...
867 executable(const Char *dir, const Char *name, int dir_ok)
875 path = Strspl(dir, name);
876 strname = short2str(path);
880 strname = short2str(name);
882 return (stat(strname, &stbuf) != -1 &&
883 ((dir_ok && S_ISDIR(stbuf.st_mode)) ||
884 (S_ISREG(stbuf.st_mode) &&
885 /* save time by not calling access() in the hopeless case */
886 (stbuf.st_mode & (S_IXOTH | S_IXGRP | S_IXUSR)) &&
887 access(strname, X_OK) == 0
890 #endif /*!WINNT_NATIVE*/
892 struct tellmewhat_s0_cleanup
898 tellmewhat_s0_cleanup(void *xstate)
900 struct tellmewhat_s0_cleanup *state;
903 *state->dest = state->val;
907 tellmewhat(struct wordent *lexp, Char **str)
909 struct tellmewhat_s0_cleanup s0;
911 const struct biltins *bptr;
912 struct wordent *sp = lexp->next;
913 int aliased = 0, found;
917 if (adrof1(sp->word, &aliases)) {
923 s0.dest = &sp->word; /* to get the memory freeing right... */
925 cleanup_push(&s0, tellmewhat_s0_cleanup);
927 /* handle quoted alias hack */
928 if ((*(sp->word) & (QUOTE | TRIM)) == QUOTE)
931 /* do quoting, if it hasn't been done */
938 while (*s2 && *s2 != qc)
939 *s1++ = *s2++ | QUOTE;
945 *s1++ = *s2++ | QUOTE;
952 for (bptr = bfunc; bptr < &bfunc[nbfunc]; bptr++) {
953 if (eq(sp->word, str2short(bptr->bname))) {
957 xprintf(CGETS(13, 5, "%S: shell built-in command.\n"),
962 *str = Strsave(sp->word);
968 for (bptr = nt_bfunc; bptr < &nt_bfunc[nt_nbfunc]; bptr++) {
969 if (eq(sp->word, str2short(bptr->bname))) {
973 xprintf(CGETS(13, 5, "%S: shell built-in command.\n"),
978 *str = Strsave(sp->word);
983 #endif /* WINNT_NATIVE*/
985 sp->word = cmd = globone(sp->word, G_IGNORE);
986 cleanup_push(cmd, xfree);
988 if ((i = iscommand(sp->word)) != 0) {
991 int slash = any(short2str(sp->word), '/');
994 if (v == NULL || v->vec == NULL || v->vec[0] == NULL || slash)
1000 if (pv[0][0] == 0 || eq(pv[0], STRdot)) {
1002 sp->word = Strspl(STRdotsl, sp->word);
1003 cleanup_push(sp->word, xfree);
1005 cleanup_until(sp->word);
1011 s1 = Strspl(*pv, STRslash);
1012 sp->word = Strspl(s1, sp->word);
1014 cleanup_push(sp->word, xfree);
1018 *str = Strsave(sp->word);
1019 cleanup_until(sp->word);
1027 xprintf(CGETS(13, 6, "%S: Command not found.\n"), sp->word);
1031 *str = Strsave(sp->word);
1039 * Builtin to look at and list all places a command may be defined:
1040 * aliases, shell builtins, and the path.
1042 * Marc Horowitz <marc@mit.edu>
1043 * MIT Student Information Processing Board
1048 dowhere(Char **v, struct command *c)
1053 found &= find_cmd(*v, 1);
1054 /* Make status nonzero if any command is not found. */
1056 setcopy(STRstatus, STR1, VAR_READWRITE);
1060 find_cmd(Char *cmd, int prt)
1063 const struct biltins *bptr;
1066 int hashval, i, ex, rval = 0;
1068 if (prt && any(short2str(cmd), '/')) {
1069 xprintf("%s", CGETS(13, 7, "where: / in command makes no sense\n"));
1073 /* first, look for an alias */
1075 if (prt && adrof1(cmd, &aliases)) {
1076 if ((var = adrof1(cmd, &aliases)) != NULL) {
1077 xprintf(CGETS(13, 8, "%S is aliased to "), cmd);
1078 if (var->vec != NULL)
1085 /* next, look for a shell builtin */
1087 for (bptr = bfunc; bptr < &bfunc[nbfunc]; bptr++) {
1088 if (eq(cmd, str2short(bptr->bname))) {
1091 xprintf(CGETS(13, 9, "%S is a shell built-in\n"), cmd);
1097 for (bptr = nt_bfunc; bptr < &nt_bfunc[nt_nbfunc]; bptr++) {
1098 if (eq(cmd, str2short(bptr->bname))) {
1101 xprintf(CGETS(13, 9, "%S is a shell built-in\n"), cmd);
1106 #endif /* WINNT_NATIVE*/
1108 /* last, look through the path for the command */
1110 if ((var = adrof(STRpath)) == NULL)
1113 hashval = havhash ? hashname(cmd) : 0;
1115 sv = Strspl(STRslash, cmd);
1116 cleanup_push(sv, xfree);
1118 for (pv = var->vec, i = 0; pv && *pv; pv++, i++) {
1119 if (havhash && !eq(*pv, STRdot)) {
1121 if (!bit(hashval, i))
1124 int hashval1 = hash(hashval, i);
1125 if (!bit(xhash, hashval1))
1127 #endif /* FASTHASH */
1129 ex = executable(*pv, sv, 0);
1131 if (!ex && (hashdebug & 2)) {
1132 xprintf("%s", CGETS(13, 10, "hash miss: "));
1133 ex = 1; /* Force printing */
1135 #endif /* FASTHASH */
1139 xprintf("%S/", *pv);
1140 xprintf("%S\n", cmd);
1150 int hashval_extern(cp)
1153 return havhash?hashname(cp):0;
1155 int bit_extern(val,i)
1161 void bis_extern(val,i)
1167 #endif /* WINNT_NATIVE */