1 /*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Kenneth Almquist. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)exec.c 8.4 (Berkeley) 6/8/95"; 36 #endif 37 #endif /* not lint */ 38 #include <sys/cdefs.h> 39 __FBSDID("$FreeBSD$"); 40 41 #include <sys/types.h> 42 #include <sys/stat.h> 43 #include <unistd.h> 44 #include <fcntl.h> 45 #include <errno.h> 46 #include <stdlib.h> 47 48 /* 49 * When commands are first encountered, they are entered in a hash table. 50 * This ensures that a full path search will not have to be done for them 51 * on each invocation. 52 * 53 * We should investigate converting to a linear search, even though that 54 * would make the command name "hash" a misnomer. 55 */ 56 57 #include "shell.h" 58 #include "main.h" 59 #include "nodes.h" 60 #include "parser.h" 61 #include "redir.h" 62 #include "eval.h" 63 #include "exec.h" 64 #include "builtins.h" 65 #include "var.h" 66 #include "options.h" 67 #include "input.h" 68 #include "output.h" 69 #include "syntax.h" 70 #include "memalloc.h" 71 #include "error.h" 72 #include "init.h" 73 #include "mystring.h" 74 #include "show.h" 75 #include "jobs.h" 76 #include "alias.h" 77 78 79 #define CMDTABLESIZE 31 /* should be prime */ 80 #define ARB 1 /* actual size determined at run time */ 81 82 83 84 struct tblentry { 85 struct tblentry *next; /* next entry in hash chain */ 86 union param param; /* definition of builtin function */ 87 int special; /* flag for special builtin commands */ 88 short cmdtype; /* index identifying command */ 89 char rehash; /* if set, cd done since entry created */ 90 char cmdname[ARB]; /* name of command */ 91 }; 92 93 94 STATIC struct tblentry *cmdtable[CMDTABLESIZE]; 95 STATIC int builtinloc = -1; /* index in path of %builtin, or -1 */ 96 int exerrno = 0; /* Last exec error */ 97 98 99 STATIC void tryexec(char *, char **, char **); 100 STATIC void printentry(struct tblentry *, int); 101 STATIC struct tblentry *cmdlookup(const char *, int); 102 STATIC void delete_cmd_entry(void); 103 104 105 106 /* 107 * Exec a program. Never returns. If you change this routine, you may 108 * have to change the find_command routine as well. 109 */ 110 111 void 112 shellexec(char **argv, char **envp, const char *path, int idx) 113 { 114 char *cmdname; 115 int e; 116 117 if (strchr(argv[0], '/') != NULL) { 118 tryexec(argv[0], argv, envp); 119 e = errno; 120 } else { 121 e = ENOENT; 122 while ((cmdname = padvance(&path, argv[0])) != NULL) { 123 if (--idx < 0 && pathopt == NULL) { 124 tryexec(cmdname, argv, envp); 125 if (errno != ENOENT && errno != ENOTDIR) 126 e = errno; 127 } 128 stunalloc(cmdname); 129 } 130 } 131 132 /* Map to POSIX errors */ 133 switch (e) { 134 case EACCES: 135 exerrno = 126; 136 break; 137 case ENOENT: 138 exerrno = 127; 139 break; 140 default: 141 exerrno = 2; 142 break; 143 } 144 if (e == ENOENT || e == ENOTDIR) 145 exerror(EXEXEC, "%s: not found", argv[0]); 146 exerror(EXEXEC, "%s: %s", argv[0], strerror(e)); 147 } 148 149 150 STATIC void 151 tryexec(char *cmd, char **argv, char **envp) 152 { 153 int e; 154 155 execve(cmd, argv, envp); 156 e = errno; 157 if (e == ENOEXEC) { 158 initshellproc(); 159 setinputfile(cmd, 0); 160 commandname = arg0 = savestr(argv[0]); 161 setparam(argv + 1); 162 exraise(EXSHELLPROC); 163 /*NOTREACHED*/ 164 } 165 errno = e; 166 } 167 168 /* 169 * Do a path search. The variable path (passed by reference) should be 170 * set to the start of the path before the first call; padvance will update 171 * this value as it proceeds. Successive calls to padvance will return 172 * the possible path expansions in sequence. If an option (indicated by 173 * a percent sign) appears in the path entry then the global variable 174 * pathopt will be set to point to it; otherwise pathopt will be set to 175 * NULL. 176 */ 177 178 const char *pathopt; 179 180 char * 181 padvance(const char **path, const char *name) 182 { 183 const char *p, *start; 184 char *q; 185 int len; 186 187 if (*path == NULL) 188 return NULL; 189 start = *path; 190 for (p = start; *p && *p != ':' && *p != '%'; p++) 191 ; /* nothing */ 192 len = p - start + strlen(name) + 2; /* "2" is for '/' and '\0' */ 193 while (stackblocksize() < len) 194 growstackblock(); 195 q = stackblock(); 196 if (p != start) { 197 memcpy(q, start, p - start); 198 q += p - start; 199 *q++ = '/'; 200 } 201 strcpy(q, name); 202 pathopt = NULL; 203 if (*p == '%') { 204 pathopt = ++p; 205 while (*p && *p != ':') p++; 206 } 207 if (*p == ':') 208 *path = p + 1; 209 else 210 *path = NULL; 211 return stalloc(len); 212 } 213 214 215 216 /*** Command hashing code ***/ 217 218 219 int 220 hashcmd(int argc __unused, char **argv __unused) 221 { 222 struct tblentry **pp; 223 struct tblentry *cmdp; 224 int c; 225 int verbose; 226 struct cmdentry entry; 227 char *name; 228 229 verbose = 0; 230 while ((c = nextopt("rv")) != '\0') { 231 if (c == 'r') { 232 clearcmdentry(0); 233 } else if (c == 'v') { 234 verbose++; 235 } 236 } 237 if (*argptr == NULL) { 238 for (pp = cmdtable ; pp < &cmdtable[CMDTABLESIZE] ; pp++) { 239 for (cmdp = *pp ; cmdp ; cmdp = cmdp->next) { 240 if (cmdp->cmdtype == CMDNORMAL) 241 printentry(cmdp, verbose); 242 } 243 } 244 return 0; 245 } 246 while ((name = *argptr) != NULL) { 247 if ((cmdp = cmdlookup(name, 0)) != NULL 248 && (cmdp->cmdtype == CMDNORMAL 249 || (cmdp->cmdtype == CMDBUILTIN && builtinloc >= 0))) 250 delete_cmd_entry(); 251 find_command(name, &entry, 1, pathval()); 252 if (verbose) { 253 if (entry.cmdtype != CMDUNKNOWN) { /* if no error msg */ 254 cmdp = cmdlookup(name, 0); 255 if (cmdp != NULL) 256 printentry(cmdp, verbose); 257 else 258 outfmt(out2, "%s: not found\n", name); 259 } 260 flushall(); 261 } 262 argptr++; 263 } 264 return 0; 265 } 266 267 268 STATIC void 269 printentry(struct tblentry *cmdp, int verbose) 270 { 271 int idx; 272 const char *path; 273 char *name; 274 275 if (cmdp->cmdtype == CMDNORMAL) { 276 idx = cmdp->param.index; 277 path = pathval(); 278 do { 279 name = padvance(&path, cmdp->cmdname); 280 stunalloc(name); 281 } while (--idx >= 0); 282 out1str(name); 283 } else if (cmdp->cmdtype == CMDBUILTIN) { 284 out1fmt("builtin %s", cmdp->cmdname); 285 } else if (cmdp->cmdtype == CMDFUNCTION) { 286 out1fmt("function %s", cmdp->cmdname); 287 if (verbose) { 288 INTOFF; 289 name = commandtext(getfuncnode(cmdp->param.func)); 290 out1c(' '); 291 out1str(name); 292 ckfree(name); 293 INTON; 294 } 295 #ifdef DEBUG 296 } else { 297 error("internal error: cmdtype %d", cmdp->cmdtype); 298 #endif 299 } 300 if (cmdp->rehash) 301 out1c('*'); 302 out1c('\n'); 303 } 304 305 306 307 /* 308 * Resolve a command name. If you change this routine, you may have to 309 * change the shellexec routine as well. 310 */ 311 312 void 313 find_command(const char *name, struct cmdentry *entry, int printerr, 314 const char *path) 315 { 316 struct tblentry *cmdp; 317 int idx; 318 int prev; 319 char *fullname; 320 struct stat statb; 321 int e; 322 int i; 323 int spec; 324 325 /* If name contains a slash, don't use the hash table */ 326 if (strchr(name, '/') != NULL) { 327 entry->cmdtype = CMDNORMAL; 328 entry->u.index = 0; 329 return; 330 } 331 332 /* If name is in the table, and not invalidated by cd, we're done */ 333 if ((cmdp = cmdlookup(name, 0)) != NULL && cmdp->rehash == 0) 334 goto success; 335 336 /* If %builtin not in path, check for builtin next */ 337 if (builtinloc < 0 && (i = find_builtin(name, &spec)) >= 0) { 338 INTOFF; 339 cmdp = cmdlookup(name, 1); 340 cmdp->cmdtype = CMDBUILTIN; 341 cmdp->param.index = i; 342 cmdp->special = spec; 343 INTON; 344 goto success; 345 } 346 347 /* We have to search path. */ 348 prev = -1; /* where to start */ 349 if (cmdp) { /* doing a rehash */ 350 if (cmdp->cmdtype == CMDBUILTIN) 351 prev = builtinloc; 352 else 353 prev = cmdp->param.index; 354 } 355 356 e = ENOENT; 357 idx = -1; 358 loop: 359 while ((fullname = padvance(&path, name)) != NULL) { 360 stunalloc(fullname); 361 idx++; 362 if (pathopt) { 363 if (prefix("builtin", pathopt)) { 364 if ((i = find_builtin(name, &spec)) < 0) 365 goto loop; 366 INTOFF; 367 cmdp = cmdlookup(name, 1); 368 cmdp->cmdtype = CMDBUILTIN; 369 cmdp->param.index = i; 370 cmdp->special = spec; 371 INTON; 372 goto success; 373 } else if (prefix("func", pathopt)) { 374 /* handled below */ 375 } else { 376 goto loop; /* ignore unimplemented options */ 377 } 378 } 379 /* if rehash, don't redo absolute path names */ 380 if (fullname[0] == '/' && idx <= prev) { 381 if (idx < prev) 382 goto loop; 383 TRACE(("searchexec \"%s\": no change\n", name)); 384 goto success; 385 } 386 if (stat(fullname, &statb) < 0) { 387 if (errno != ENOENT && errno != ENOTDIR) 388 e = errno; 389 goto loop; 390 } 391 e = EACCES; /* if we fail, this will be the error */ 392 if (!S_ISREG(statb.st_mode)) 393 goto loop; 394 if (pathopt) { /* this is a %func directory */ 395 stalloc(strlen(fullname) + 1); 396 readcmdfile(fullname); 397 if ((cmdp = cmdlookup(name, 0)) == NULL || cmdp->cmdtype != CMDFUNCTION) 398 error("%s not defined in %s", name, fullname); 399 stunalloc(fullname); 400 goto success; 401 } 402 #ifdef notdef 403 if (statb.st_uid == geteuid()) { 404 if ((statb.st_mode & 0100) == 0) 405 goto loop; 406 } else if (statb.st_gid == getegid()) { 407 if ((statb.st_mode & 010) == 0) 408 goto loop; 409 } else { 410 if ((statb.st_mode & 01) == 0) 411 goto loop; 412 } 413 #endif 414 TRACE(("searchexec \"%s\" returns \"%s\"\n", name, fullname)); 415 INTOFF; 416 cmdp = cmdlookup(name, 1); 417 cmdp->cmdtype = CMDNORMAL; 418 cmdp->param.index = idx; 419 INTON; 420 goto success; 421 } 422 423 /* We failed. If there was an entry for this command, delete it */ 424 if (cmdp) 425 delete_cmd_entry(); 426 if (printerr) { 427 if (e == ENOENT || e == ENOTDIR) 428 outfmt(out2, "%s: not found\n", name); 429 else 430 outfmt(out2, "%s: %s\n", name, strerror(e)); 431 } 432 entry->cmdtype = CMDUNKNOWN; 433 entry->u.index = 0; 434 return; 435 436 success: 437 cmdp->rehash = 0; 438 entry->cmdtype = cmdp->cmdtype; 439 entry->u = cmdp->param; 440 entry->special = cmdp->special; 441 } 442 443 444 445 /* 446 * Search the table of builtin commands. 447 */ 448 449 int 450 find_builtin(const char *name, int *special) 451 { 452 const struct builtincmd *bp; 453 454 for (bp = builtincmd ; bp->name ; bp++) { 455 if (*bp->name == *name && equal(bp->name, name)) { 456 *special = bp->special; 457 return bp->code; 458 } 459 } 460 return -1; 461 } 462 463 464 465 /* 466 * Called when a cd is done. Marks all commands so the next time they 467 * are executed they will be rehashed. 468 */ 469 470 void 471 hashcd(void) 472 { 473 struct tblentry **pp; 474 struct tblentry *cmdp; 475 476 for (pp = cmdtable ; pp < &cmdtable[CMDTABLESIZE] ; pp++) { 477 for (cmdp = *pp ; cmdp ; cmdp = cmdp->next) { 478 if (cmdp->cmdtype == CMDNORMAL 479 || (cmdp->cmdtype == CMDBUILTIN && builtinloc >= 0)) 480 cmdp->rehash = 1; 481 } 482 } 483 } 484 485 486 487 /* 488 * Called before PATH is changed. The argument is the new value of PATH; 489 * pathval() still returns the old value at this point. Called with 490 * interrupts off. 491 */ 492 493 void 494 changepath(const char *newval) 495 { 496 const char *old, *new; 497 int idx; 498 int firstchange; 499 int bltin; 500 501 old = pathval(); 502 new = newval; 503 firstchange = 9999; /* assume no change */ 504 idx = 0; 505 bltin = -1; 506 for (;;) { 507 if (*old != *new) { 508 firstchange = idx; 509 if ((*old == '\0' && *new == ':') 510 || (*old == ':' && *new == '\0')) 511 firstchange++; 512 old = new; /* ignore subsequent differences */ 513 } 514 if (*new == '\0') 515 break; 516 if (*new == '%' && bltin < 0 && prefix("builtin", new + 1)) 517 bltin = idx; 518 if (*new == ':') { 519 idx++; 520 } 521 new++, old++; 522 } 523 if (builtinloc < 0 && bltin >= 0) 524 builtinloc = bltin; /* zap builtins */ 525 if (builtinloc >= 0 && bltin < 0) 526 firstchange = 0; 527 clearcmdentry(firstchange); 528 builtinloc = bltin; 529 } 530 531 532 /* 533 * Clear out command entries. The argument specifies the first entry in 534 * PATH which has changed. 535 */ 536 537 void 538 clearcmdentry(int firstchange) 539 { 540 struct tblentry **tblp; 541 struct tblentry **pp; 542 struct tblentry *cmdp; 543 544 INTOFF; 545 for (tblp = cmdtable ; tblp < &cmdtable[CMDTABLESIZE] ; tblp++) { 546 pp = tblp; 547 while ((cmdp = *pp) != NULL) { 548 if ((cmdp->cmdtype == CMDNORMAL && 549 cmdp->param.index >= firstchange) 550 || (cmdp->cmdtype == CMDBUILTIN && 551 builtinloc >= firstchange)) { 552 *pp = cmdp->next; 553 ckfree(cmdp); 554 } else { 555 pp = &cmdp->next; 556 } 557 } 558 } 559 INTON; 560 } 561 562 563 /* 564 * Delete all functions. 565 */ 566 567 #ifdef mkinit 568 MKINIT void deletefuncs(void); 569 570 SHELLPROC { 571 deletefuncs(); 572 } 573 #endif 574 575 void 576 deletefuncs(void) 577 { 578 struct tblentry **tblp; 579 struct tblentry **pp; 580 struct tblentry *cmdp; 581 582 INTOFF; 583 for (tblp = cmdtable ; tblp < &cmdtable[CMDTABLESIZE] ; tblp++) { 584 pp = tblp; 585 while ((cmdp = *pp) != NULL) { 586 if (cmdp->cmdtype == CMDFUNCTION) { 587 *pp = cmdp->next; 588 unreffunc(cmdp->param.func); 589 ckfree(cmdp); 590 } else { 591 pp = &cmdp->next; 592 } 593 } 594 } 595 INTON; 596 } 597 598 599 600 /* 601 * Locate a command in the command hash table. If "add" is nonzero, 602 * add the command to the table if it is not already present. The 603 * variable "lastcmdentry" is set to point to the address of the link 604 * pointing to the entry, so that delete_cmd_entry can delete the 605 * entry. 606 */ 607 608 STATIC struct tblentry **lastcmdentry; 609 610 611 STATIC struct tblentry * 612 cmdlookup(const char *name, int add) 613 { 614 int hashval; 615 const char *p; 616 struct tblentry *cmdp; 617 struct tblentry **pp; 618 619 p = name; 620 hashval = *p << 4; 621 while (*p) 622 hashval += *p++; 623 hashval &= 0x7FFF; 624 pp = &cmdtable[hashval % CMDTABLESIZE]; 625 for (cmdp = *pp ; cmdp ; cmdp = cmdp->next) { 626 if (equal(cmdp->cmdname, name)) 627 break; 628 pp = &cmdp->next; 629 } 630 if (add && cmdp == NULL) { 631 INTOFF; 632 cmdp = *pp = ckmalloc(sizeof (struct tblentry) - ARB 633 + strlen(name) + 1); 634 cmdp->next = NULL; 635 cmdp->cmdtype = CMDUNKNOWN; 636 cmdp->rehash = 0; 637 strcpy(cmdp->cmdname, name); 638 INTON; 639 } 640 lastcmdentry = pp; 641 return cmdp; 642 } 643 644 /* 645 * Delete the command entry returned on the last lookup. 646 */ 647 648 STATIC void 649 delete_cmd_entry(void) 650 { 651 struct tblentry *cmdp; 652 653 INTOFF; 654 cmdp = *lastcmdentry; 655 *lastcmdentry = cmdp->next; 656 ckfree(cmdp); 657 INTON; 658 } 659 660 661 662 /* 663 * Add a new command entry, replacing any existing command entry for 664 * the same name. 665 */ 666 667 void 668 addcmdentry(const char *name, struct cmdentry *entry) 669 { 670 struct tblentry *cmdp; 671 672 INTOFF; 673 cmdp = cmdlookup(name, 1); 674 if (cmdp->cmdtype == CMDFUNCTION) { 675 unreffunc(cmdp->param.func); 676 } 677 cmdp->cmdtype = entry->cmdtype; 678 cmdp->param = entry->u; 679 INTON; 680 } 681 682 683 /* 684 * Define a shell function. 685 */ 686 687 void 688 defun(const char *name, union node *func) 689 { 690 struct cmdentry entry; 691 692 INTOFF; 693 entry.cmdtype = CMDFUNCTION; 694 entry.u.func = copyfunc(func); 695 addcmdentry(name, &entry); 696 INTON; 697 } 698 699 700 /* 701 * Delete a function if it exists. 702 */ 703 704 int 705 unsetfunc(const char *name) 706 { 707 struct tblentry *cmdp; 708 709 if ((cmdp = cmdlookup(name, 0)) != NULL && cmdp->cmdtype == CMDFUNCTION) { 710 unreffunc(cmdp->param.func); 711 delete_cmd_entry(); 712 return (0); 713 } 714 return (0); 715 } 716 717 /* 718 * Shared code for the following builtin commands: 719 * type, command -v, command -V 720 */ 721 722 int 723 typecmd_impl(int argc, char **argv, int cmd, const char *path) 724 { 725 struct cmdentry entry; 726 struct tblentry *cmdp; 727 const char *const *pp; 728 struct alias *ap; 729 int i; 730 int error1 = 0; 731 732 if (path != pathval()) 733 clearcmdentry(0); 734 735 for (i = 1; i < argc; i++) { 736 /* First look at the keywords */ 737 for (pp = parsekwd; *pp; pp++) 738 if (**pp == *argv[i] && equal(*pp, argv[i])) 739 break; 740 741 if (*pp) { 742 if (cmd == TYPECMD_SMALLV) 743 out1fmt("%s\n", argv[i]); 744 else 745 out1fmt("%s is a shell keyword\n", argv[i]); 746 continue; 747 } 748 749 /* Then look at the aliases */ 750 if ((ap = lookupalias(argv[i], 1)) != NULL) { 751 if (cmd == TYPECMD_SMALLV) 752 out1fmt("alias %s='%s'\n", argv[i], ap->val); 753 else 754 out1fmt("%s is an alias for %s\n", argv[i], 755 ap->val); 756 continue; 757 } 758 759 /* Then check if it is a tracked alias */ 760 if ((cmdp = cmdlookup(argv[i], 0)) != NULL) { 761 entry.cmdtype = cmdp->cmdtype; 762 entry.u = cmdp->param; 763 entry.special = cmdp->special; 764 } 765 else { 766 /* Finally use brute force */ 767 find_command(argv[i], &entry, 0, path); 768 } 769 770 switch (entry.cmdtype) { 771 case CMDNORMAL: { 772 if (strchr(argv[i], '/') == NULL) { 773 const char *path2 = path; 774 char *name; 775 int j = entry.u.index; 776 do { 777 name = padvance(&path2, argv[i]); 778 stunalloc(name); 779 } while (--j >= 0); 780 if (cmd == TYPECMD_SMALLV) 781 out1fmt("%s\n", name); 782 else 783 out1fmt("%s is%s %s\n", argv[i], 784 (cmdp && cmd == TYPECMD_TYPE) ? 785 " a tracked alias for" : "", 786 name); 787 } else { 788 if (eaccess(argv[i], X_OK) == 0) { 789 if (cmd == TYPECMD_SMALLV) 790 out1fmt("%s\n", argv[i]); 791 else 792 out1fmt("%s is %s\n", argv[i], 793 argv[i]); 794 } else { 795 if (cmd != TYPECMD_SMALLV) 796 outfmt(out2, "%s: %s\n", 797 argv[i], strerror(errno)); 798 error1 |= 127; 799 } 800 } 801 break; 802 } 803 case CMDFUNCTION: 804 if (cmd == TYPECMD_SMALLV) 805 out1fmt("%s\n", argv[i]); 806 else 807 out1fmt("%s is a shell function\n", argv[i]); 808 break; 809 810 case CMDBUILTIN: 811 if (cmd == TYPECMD_SMALLV) 812 out1fmt("%s\n", argv[i]); 813 else if (entry.special) 814 out1fmt("%s is a special shell builtin\n", 815 argv[i]); 816 else 817 out1fmt("%s is a shell builtin\n", argv[i]); 818 break; 819 820 default: 821 if (cmd != TYPECMD_SMALLV) 822 outfmt(out2, "%s: not found\n", argv[i]); 823 error1 |= 127; 824 break; 825 } 826 } 827 828 if (path != pathval()) 829 clearcmdentry(0); 830 831 return error1; 832 } 833 834 /* 835 * Locate and print what a word is... 836 */ 837 838 int 839 typecmd(int argc, char **argv) 840 { 841 return typecmd_impl(argc, argv, TYPECMD_TYPE, bltinlookup("PATH", 1)); 842 } 843