1 /* $Header: /p/tcsh/cvsroot/tcsh/sh.exec.c,v 3.79 2011/02/25 23:58:34 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 3.79 2011/02/25 23:58:34 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) present 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) __attribute__((__noreturn__));
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, **opv, **av, *sav;
154 int slash, gflag, rehashed;
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;
276 * Try to save time by looking at the hash table for where this command
277 * could be. If we are doing delayed hashing, then we put the names in
278 * one at a time, as the user enters them. This is kinda like Korn
279 * Shell's "tracked aliases".
281 if (!slash && ABSOLUTEP(pv[0]) && havhash) {
283 if (!bit(hashval, i))
286 int hashval1 = hash(hashval, i);
287 if (!bit(xhash, hashval1))
289 #endif /* FASTHASH */
291 if (pv[0][0] == 0 || eq(pv[0], STRdot)) /* don't make ./xxx */
294 dp = Strspl(*pv, sav);
296 cleanup_push(dp, xfree);
319 if (adrof(STRautorehash) && !rehashed && havhash && opv != justabs) {
336 /* Couldn't find the damn thing */
338 setname(short2str(expath));
348 stderror(ERR_NAME | ERR_STRING, exerr);
349 stderror(ERR_NAME | ERR_COMMAND);
353 * Execute command f, arg list t.
354 * Record error message if not found.
355 * Also do shell scripts here.
358 texec(Char *sf, Char **st)
369 /* The order for the conversions is significant */
375 errno = 0; /* don't use a previous error */
378 * If we try to execute an nfs mounted directory on the apollo, we
379 * hang forever. So until apollo fixes that..
383 if (stat(f, &stb) == 0 && S_ISDIR(stb.st_mode))
389 #ifdef ISC_POSIX_EXEC_BUG
390 __setostype(0); /* "0" is "__OS_SYSV" in <sys/user.h> */
391 #endif /* ISC_POSIX_EXEC_BUG */
393 #ifdef ISC_POSIX_EXEC_BUG
394 __setostype(1); /* "1" is "__OS_POSIX" in <sys/user.h> */
395 #endif /* ISC_POSIX_EXEC_BUG */
400 blkfree((Char **) t);
406 #endif /* WINNT_NATIVE */
408 * From: casper@fwi.uva.nl (Casper H.S. Dik) If we could not execute
409 * it, don't feed it to the shell if it looks like a binary!
411 if ((fd = xopen(f, O_RDONLY|O_LARGEFILE)) != -1) {
413 if ((nread = xread(fd, pref, 2)) == 2) {
414 if (!isprint((unsigned char)pref[0]) &&
415 (pref[0] != '\n' && pref[0] != '\t')) {
421 * We *know* what ENOEXEC means.
423 stderror(ERR_ARCH, f, strerror(err));
426 else if (nread < 0) {
432 /* need to print error incase the file is migrated */
433 stderror(ERR_SYSTEM, f, strerror(err));
445 pref[0] != '#' || pref[1] != '!' || hashbang(fd, &vp) == -1) {
446 #endif /* HASHBANG */
448 * If there is an alias for shell, then put the words of the alias in
449 * front of the argument list replacing the command name. Note no
450 * interpretation of the words at this point.
452 v = adrof1(STRshell, &aliases);
453 if (v == NULL || v->vec == NULL) {
455 vp[0] = adrof(STRshell) ? varval(STRshell) : STR_SHELLPATH;
459 # ifndef ISC /* Compatible with ISC's /bin/csh */
468 vp = saveblk(v->vec);
471 #endif /* HASHBANG */
478 st = blkspl(vp, st); /* Splice up the new arglst */
481 /* The order for the conversions is significant */
485 blkfree((Char **) vp);
489 #ifdef ISC_POSIX_EXEC_BUG
490 __setostype(0); /* "0" is "__OS_SYSV" in <sys/user.h> */
491 #endif /* ISC_POSIX_EXEC_BUG */
493 #ifdef ISC_POSIX_EXEC_BUG
494 __setostype(1); /* "1" is "__OS_POSIX" in <sys/user.h> */
495 #endif /* ISC_POSIX_EXEC_BUG */
499 blkfree((Char **) t);
500 /* The sky is falling, the sky is falling! */
501 stderror(ERR_SYSTEM, f, strerror(errno));
505 stderror(ERR_SYSTEM, f, strerror(errno));
509 case 0: /* execv fails and returns 0! */
516 exerr = strerror(errno);
518 expath = Strsave(sf);
529 int saveIN, saveOUT, saveDIAG, saveSTD;
530 int SHIN, SHOUT, SHDIAG, OLDSTD;
532 #ifndef CLOSE_ON_EXEC
535 struct sigaction sigint, sigquit, sigterm;
539 execash_cleanup(void *xstate)
541 struct execash_state *state;
544 sigaction(SIGINT, &state->sigint, NULL);
545 sigaction(SIGQUIT, &state->sigquit, NULL);
546 sigaction(SIGTERM, &state->sigterm, NULL);
549 #ifndef CLOSE_ON_EXEC
550 didcch = state->didcch;
551 #endif /* CLOSE_ON_EXEC */
552 didfds = state->didfds;
557 close_on_exec(SHIN = dmove(state->saveIN, state->SHIN), 1);
558 close_on_exec(SHOUT = dmove(state->saveOUT, state->SHOUT), 1);
559 close_on_exec(SHDIAG = dmove(state->saveDIAG, state->SHDIAG), 1);
560 close_on_exec(OLDSTD = dmove(state->saveSTD, state->OLDSTD), 1);
565 execash(Char **t, struct command *kp)
567 struct execash_state state;
570 if (chkstop == 0 && setintr)
573 * Hmm, we don't really want to do that now because we might
574 * fail, but what is the choice
576 rechist(NULL, adrof(STRsavehist) != NULL);
579 sigaction(SIGINT, &parintr, &state.sigint);
580 sigaction(SIGQUIT, &parintr, &state.sigquit);
581 sigaction(SIGTERM, &parterm, &state.sigterm);
583 state.didfds = didfds;
584 #ifndef CLOSE_ON_EXEC
585 state.didcch = didcch;
586 #endif /* CLOSE_ON_EXEC */
589 state.SHDIAG = SHDIAG;
590 state.OLDSTD = OLDSTD;
592 (void)close_on_exec (state.saveIN = dcopy(SHIN, -1), 1);
593 (void)close_on_exec (state.saveOUT = dcopy(SHOUT, -1), 1);
594 (void)close_on_exec (state.saveDIAG = dcopy(SHDIAG, -1), 1);
595 (void)close_on_exec (state.saveSTD = dcopy(OLDSTD, -1), 1);
597 lshift(kp->t_dcom, 1);
599 (void)close_on_exec (SHIN = dcopy(0, -1), 1);
600 (void)close_on_exec (SHOUT = dcopy(1, -1), 1);
601 (void)close_on_exec (SHDIAG = dcopy(2, -1), 1);
602 #ifndef CLOSE_ON_EXEC
604 #endif /* CLOSE_ON_EXEC */
606 cleanup_push(&state, execash_cleanup);
609 * Decrement the shell level
614 #endif /* WINNT_NATIVE */
617 cleanup_until(&state);
623 if (adrof(STRecho)) {
624 int odidfds = didfds;
628 blkpr(t), xputchar('\n');
637 dohash(Char **vv, struct command *c)
645 struct varent *v = adrof(STRpath);
649 int is_windir; /* check if it is the windows directory */
651 #endif /* WINNT_NATIVE */
656 uhashlength = atoi(short2str(vv[1]));
658 uhashwidth = atoi(short2str(vv[2]));
659 if ((uhashwidth != sizeof(unsigned char)) &&
660 (uhashwidth != sizeof(unsigned short)) &&
661 (uhashwidth != sizeof(unsigned long)))
664 hashdebug = atoi(short2str(vv[3]));
669 hashwidth = uhashwidth;
674 for (pv = v->vec; pv && *pv; pv++, hashwidth++)
676 if (hashwidth <= widthof(unsigned char))
677 hashwidth = sizeof(unsigned char);
678 else if (hashwidth <= widthof(unsigned short))
679 hashwidth = sizeof(unsigned short);
680 else if (hashwidth <= widthof(unsigned int))
681 hashwidth = sizeof(unsigned int);
683 hashwidth = sizeof(unsigned long);
687 hashlength = uhashlength;
689 hashlength = hashwidth * (8*64);/* "average" files per dir in path */
692 xhash = xcalloc(hashlength * hashwidth, 1);
693 #endif /* FASTHASH */
695 (void) getusername(NULL); /* flush the tilde cashe */
700 for (pv = v->vec; pv && *pv; pv++, i++) {
701 if (!ABSOLUTEP(pv[0]))
703 dirp = opendir(short2str(*pv));
706 cleanup_push(dirp, opendir_cleanup);
707 #ifdef COMMENT /* this isn't needed. opendir won't open
709 if (fstat(dirp->dd_fd, &stb) < 0 || !S_ISDIR(stb.st_mode)) {
715 is_windir = nt_check_if_windir(short2str(*pv));
716 #endif /* WINNT_NATIVE */
717 while ((dp = readdir(dirp)) != NULL) {
720 if (dp->d_name[0] == '.' &&
721 (dp->d_name[1] == '\0' ||
722 (dp->d_name[1] == '.' && dp->d_name[2] == '\0')))
725 nt_check_name_and_hash(is_windir, dp->d_name, i);
726 #else /* !WINNT_NATIVE*/
727 #if defined(_UWIN) || defined(__CYGWIN__)
728 /* Turn foo.{exe,com,bat} into foo since UWIN's readdir returns
729 * the file with the .exe, .com, .bat extension
731 * Same for Cygwin, but only for .exe and .com extension.
734 ssize_t ext = strlen(dp->d_name) - 4;
735 if ((ext > 0) && (strcasecmp(&dp->d_name[ext], ".exe") == 0 ||
737 strcasecmp(&dp->d_name[ext], ".bat") == 0 ||
739 strcasecmp(&dp->d_name[ext], ".com") == 0)) {
741 /* Also store the variation with extension. */
742 hashval = hashname(str2short(dp->d_name));
744 #endif /* __CYGWIN__ */
745 dp->d_name[ext] = '\0';
748 #endif /* _UWIN || __CYGWIN__ */
750 hashval = hashname(str2short(dp->d_name));
753 xprintf(CGETS(13, 1, "hash=%-4d dir=%-2d prog=%s\n"),
754 hashname(str2short(dp->d_name)), i, dp->d_name);
755 # else /* OLD HASH */
756 hashval = hash(hashname(str2short(dp->d_name)), i);
758 # endif /* FASTHASH */
759 /* tw_add_comm_name (dp->d_name); */
760 #endif /* WINNT_NATIVE */
768 dounhash(Char **v, struct command *c)
776 #endif /* FASTHASH */
781 hashstat(Char **v, struct command *c)
786 if (havhash && hashlength && hashwidth)
787 xprintf(CGETS(13, 2, "%d hash buckets of %d bits each\n"),
788 hashlength, hashwidth*8);
790 xprintf(CGETS(13, 3, "debug mask = 0x%08x\n"), hashdebug);
791 #endif /* FASTHASH */
794 xprintf(CGETS(13, 4, "%d hits, %d misses, %d%%\n"),
795 hits, misses, 100 * hits / (hits + misses));
801 * Hash a command name.
808 for (h = 0; *cp; cp++)
814 iscommand(Char *name)
819 int slash = any(short2str(name), '/');
820 int hashval, rehashed, i;
823 if (v == NULL || v->vec == NULL || v->vec[0] == NULL || slash)
827 sav = Strspl(STRslash, name); /* / command name for postpending */
828 hashval = havhash ? hashname(name) : 0;
835 if (!slash && ABSOLUTEP(pv[0]) && havhash) {
837 if (!bit(hashval, i))
840 int hashval1 = hash(hashval, i);
841 if (!bit(xhash, hashval1))
843 #endif /* FASTHASH */
845 if (pv[0][0] == 0 || eq(pv[0], STRdot)) { /* don't make ./xxx */
846 if (executable(NULL, name, 0)) {
852 if (executable(*pv, sav, 0)) {
861 if (adrof(STRautorehash) && !rehashed && havhash && opv != justabs) {
871 * Andreas Luik <luik@isaak.isa.de>
872 * I S A GmbH - Informationssysteme fuer computerintegrierte Automatisierung
876 * is the executable() routine below and changes to iscommand().
882 * executable() examines the pathname obtained by concatenating dir and name
883 * (dir may be NULL), and returns 1 either if it is executable by us, or
884 * if dir_ok is set and the pathname refers to a directory.
885 * This is a bit kludgy, but in the name of optimization...
888 executable(const Char *dir, const Char *name, int dir_ok)
896 path = Strspl(dir, name);
897 strname = short2str(path);
901 strname = short2str(name);
903 return (stat(strname, &stbuf) != -1 &&
904 ((dir_ok && S_ISDIR(stbuf.st_mode)) ||
905 (S_ISREG(stbuf.st_mode) &&
906 /* save time by not calling access() in the hopeless case */
907 (stbuf.st_mode & (S_IXOTH | S_IXGRP | S_IXUSR)) &&
908 access(strname, X_OK) == 0
911 #endif /*!WINNT_NATIVE*/
913 struct tellmewhat_s0_cleanup
919 tellmewhat_s0_cleanup(void *xstate)
921 struct tellmewhat_s0_cleanup *state;
924 *state->dest = state->val;
928 tellmewhat(struct wordent *lexp, Char **str)
930 struct tellmewhat_s0_cleanup s0;
932 const struct biltins *bptr;
933 struct wordent *sp = lexp->next;
934 int aliased = 0, found;
938 if (adrof1(sp->word, &aliases)) {
944 s0.dest = &sp->word; /* to get the memory freeing right... */
946 cleanup_push(&s0, tellmewhat_s0_cleanup);
948 /* handle quoted alias hack */
949 if ((*(sp->word) & (QUOTE | TRIM)) == QUOTE)
952 /* do quoting, if it hasn't been done */
959 while (*s2 && *s2 != qc)
960 *s1++ = *s2++ | QUOTE;
966 *s1++ = *s2++ | QUOTE;
973 for (bptr = bfunc; bptr < &bfunc[nbfunc]; bptr++) {
974 if (eq(sp->word, str2short(bptr->bname))) {
978 xprintf(CGETS(13, 5, "%S: shell built-in command.\n"),
983 *str = Strsave(sp->word);
989 for (bptr = nt_bfunc; bptr < &nt_bfunc[nt_nbfunc]; bptr++) {
990 if (eq(sp->word, str2short(bptr->bname))) {
994 xprintf(CGETS(13, 5, "%S: shell built-in command.\n"),
999 *str = Strsave(sp->word);
1004 #endif /* WINNT_NATIVE*/
1006 sp->word = cmd = globone(sp->word, G_IGNORE);
1007 cleanup_push(cmd, xfree);
1009 if ((i = iscommand(sp->word)) != 0) {
1012 int slash = any(short2str(sp->word), '/');
1015 if (v == NULL || v->vec == NULL || v->vec[0] == NULL || slash)
1021 if (pv[0][0] == 0 || eq(pv[0], STRdot)) {
1023 sp->word = Strspl(STRdotsl, sp->word);
1024 cleanup_push(sp->word, xfree);
1026 cleanup_until(sp->word);
1032 s1 = Strspl(*pv, STRslash);
1033 sp->word = Strspl(s1, sp->word);
1035 cleanup_push(sp->word, xfree);
1039 *str = Strsave(sp->word);
1040 cleanup_until(sp->word);
1048 xprintf(CGETS(13, 6, "%S: Command not found.\n"), sp->word);
1052 *str = Strsave(sp->word);
1060 * Builtin to look at and list all places a command may be defined:
1061 * aliases, shell builtins, and the path.
1063 * Marc Horowitz <marc@mit.edu>
1064 * MIT Student Information Processing Board
1069 dowhere(Char **v, struct command *c)
1074 found &= find_cmd(*v, 1);
1075 /* Make status nonzero if any command is not found. */
1077 setcopy(STRstatus, STR1, VAR_READWRITE);
1081 find_cmd(Char *cmd, int prt)
1084 const struct biltins *bptr;
1087 int hashval, rehashed, i, ex, rval = 0;
1089 if (prt && any(short2str(cmd), '/')) {
1090 xprintf("%s", CGETS(13, 7, "where: / in command makes no sense\n"));
1094 /* first, look for an alias */
1096 if (prt && adrof1(cmd, &aliases)) {
1097 if ((var = adrof1(cmd, &aliases)) != NULL) {
1098 xprintf(CGETS(13, 8, "%S is aliased to "), cmd);
1099 if (var->vec != NULL)
1106 /* next, look for a shell builtin */
1108 for (bptr = bfunc; bptr < &bfunc[nbfunc]; bptr++) {
1109 if (eq(cmd, str2short(bptr->bname))) {
1112 xprintf(CGETS(13, 9, "%S is a shell built-in\n"), cmd);
1118 for (bptr = nt_bfunc; bptr < &nt_bfunc[nt_nbfunc]; bptr++) {
1119 if (eq(cmd, str2short(bptr->bname))) {
1122 xprintf(CGETS(13, 9, "%S is a shell built-in\n"), cmd);
1127 #endif /* WINNT_NATIVE*/
1129 /* last, look through the path for the command */
1131 if ((var = adrof(STRpath)) == NULL)
1134 hashval = havhash ? hashname(cmd) : 0;
1136 sv = Strspl(STRslash, cmd);
1137 cleanup_push(sv, xfree);
1141 for (pv = var->vec, i = 0; pv && *pv; pv++, i++) {
1142 if (havhash && !eq(*pv, STRdot)) {
1144 if (!bit(hashval, i))
1147 int hashval1 = hash(hashval, i);
1148 if (!bit(xhash, hashval1))
1150 #endif /* FASTHASH */
1152 ex = executable(*pv, sv, 0);
1154 if (!ex && (hashdebug & 2)) {
1155 xprintf("%s", CGETS(13, 10, "hash miss: "));
1156 ex = 1; /* Force printing */
1158 #endif /* FASTHASH */
1162 xprintf("%S/", *pv);
1163 xprintf("%S\n", cmd);
1169 if (adrof(STRautorehash) && !rehashed && havhash) {
1178 int hashval_extern(cp)
1181 return havhash?hashname(cp):0;
1183 int bit_extern(val,i)
1189 void bis_extern(val,i)
1195 #endif /* WINNT_NATIVE */