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Commit | Line | Data |
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726f6388 JA |
1 | /* File-name wildcard pattern matching for GNU. |
2 | Copyright (C) 1985, 1988, 1989 Free Software Foundation, Inc. | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
bb70624e | 6 | the Free Software Foundation; either version 2, or (at your option) |
726f6388 JA |
7 | any later version. |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, write to the Free Software | |
bb70624e | 16 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ |
ccc6cda3 | 17 | |
726f6388 JA |
18 | /* To whomever it may concern: I have never seen the code which most |
19 | Unix programs use to perform this function. I wrote this from scratch | |
20 | based on specifications for the pattern matching. --RMS. */ | |
21 | ||
ccc6cda3 JA |
22 | #include <config.h> |
23 | ||
24 | #if !defined (__GNUC__) && !defined (HAVE_ALLOCA_H) && defined (_AIX) | |
25 | #pragma alloca | |
26 | #endif /* _AIX && RISC6000 && !__GNUC__ */ | |
27 | ||
cce855bc JA |
28 | #if defined (SHELL) |
29 | # include "bashtypes.h" | |
30 | #else | |
31 | # include <sys/types.h> | |
32 | #endif | |
33 | ||
ccc6cda3 JA |
34 | #if defined (HAVE_UNISTD_H) |
35 | # include <unistd.h> | |
36 | #endif | |
37 | ||
cce855bc JA |
38 | #if defined (SHELL) |
39 | # include "bashansi.h" | |
ccc6cda3 | 40 | #else |
cce855bc JA |
41 | # if defined (HAVE_STDLIB_H) |
42 | # include <stdlib.h> | |
43 | # endif | |
44 | # if defined (HAVE_STRING_H) | |
45 | # include <string.h> | |
46 | # else /* !HAVE_STRING_H */ | |
47 | # include <strings.h> | |
48 | # endif /* !HAVE_STRING_H */ | |
726f6388 JA |
49 | #endif |
50 | ||
726f6388 JA |
51 | #if defined (HAVE_DIRENT_H) |
52 | # include <dirent.h> | |
726f6388 JA |
53 | # define D_NAMLEN(d) strlen ((d)->d_name) |
54 | #else /* !HAVE_DIRENT_H */ | |
55 | # define D_NAMLEN(d) ((d)->d_namlen) | |
ccc6cda3 JA |
56 | # if defined (HAVE_SYS_NDIR_H) |
57 | # include <sys/ndir.h> | |
58 | # endif | |
59 | # if defined (HAVE_SYS_DIR_H) | |
726f6388 | 60 | # include <sys/dir.h> |
ccc6cda3 JA |
61 | # endif /* HAVE_SYS_DIR_H */ |
62 | # if defined (HAVE_NDIR_H) | |
63 | # include <ndir.h> | |
64 | # endif | |
65 | # if !defined (dirent) | |
66 | # define dirent direct | |
67 | # endif | |
726f6388 JA |
68 | #endif /* !HAVE_DIRENT_H */ |
69 | ||
bb70624e | 70 | #if defined (_POSIX_SOURCE) && !defined (STRUCT_DIRENT_HAS_D_INO) |
726f6388 JA |
71 | /* Posix does not require that the d_ino field be present, and some |
72 | systems do not provide it. */ | |
73 | # define REAL_DIR_ENTRY(dp) 1 | |
74 | #else | |
75 | # define REAL_DIR_ENTRY(dp) (dp->d_ino != 0) | |
76 | #endif /* _POSIX_SOURCE */ | |
77 | ||
b72432fd | 78 | #if !defined (HAVE_BCOPY) && !defined (bcopy) |
ccc6cda3 | 79 | # define bcopy(s, d, n) ((void) memcpy ((d), (s), (n))) |
b72432fd | 80 | #endif /* !HAVE_BCOPY && !bcopy */ |
726f6388 | 81 | |
cce855bc JA |
82 | #if defined (SHELL) |
83 | # include "posixstat.h" | |
84 | #else /* !SHELL */ | |
85 | # include <sys/stat.h> | |
86 | #endif /* !SHELL */ | |
87 | ||
88 | #include "filecntl.h" | |
89 | #if !defined (F_OK) | |
90 | # define F_OK 0 | |
91 | #endif | |
92 | ||
93 | #if defined (SHELL) | |
94 | # include "memalloc.h" | |
95 | #endif | |
96 | ||
ccc6cda3 JA |
97 | #include "fnmatch.h" |
98 | ||
99 | #if !defined (HAVE_STDLIB_H) && !defined (SHELL) | |
726f6388 JA |
100 | extern char *malloc (), *realloc (); |
101 | extern void free (); | |
102 | #endif /* !HAVE_STDLIB_H */ | |
103 | ||
104 | #if !defined (NULL) | |
105 | # if defined (__STDC__) | |
106 | # define NULL ((void *) 0) | |
107 | # else | |
108 | # define NULL 0x0 | |
109 | # endif /* __STDC__ */ | |
110 | #endif /* !NULL */ | |
111 | ||
112 | #if defined (SHELL) | |
d166f048 | 113 | extern void throw_to_top_level (); |
cce855bc | 114 | extern int test_eaccess (); |
d166f048 | 115 | |
726f6388 | 116 | extern int interrupt_state; |
cce855bc | 117 | extern int extended_glob; |
726f6388 JA |
118 | #endif /* SHELL */ |
119 | ||
120 | /* Global variable which controls whether or not * matches .*. | |
121 | Non-zero means don't match .*. */ | |
122 | int noglob_dot_filenames = 1; | |
123 | ||
cce855bc JA |
124 | /* Global variable which controls whether or not filename globbing |
125 | is done without regard to case. */ | |
126 | int glob_ignore_case = 0; | |
127 | ||
726f6388 JA |
128 | /* Global variable to return to signify an error in globbing. */ |
129 | char *glob_error_return; | |
130 | ||
726f6388 JA |
131 | /* Return nonzero if PATTERN has any special globbing chars in it. */ |
132 | int | |
133 | glob_pattern_p (pattern) | |
134 | char *pattern; | |
135 | { | |
cce855bc | 136 | register char *p; |
726f6388 | 137 | register char c; |
cce855bc JA |
138 | int bopen; |
139 | ||
140 | p = pattern; | |
141 | bopen = 0; | |
726f6388 JA |
142 | |
143 | while ((c = *p++) != '\0') | |
144 | switch (c) | |
145 | { | |
146 | case '?': | |
147 | case '*': | |
148 | return (1); | |
149 | ||
150 | case '[': /* Only accept an open brace if there is a close */ | |
cce855bc | 151 | bopen++; /* brace to match it. Bracket expressions must be */ |
726f6388 JA |
152 | continue; /* complete, according to Posix.2 */ |
153 | case ']': | |
cce855bc | 154 | if (bopen) |
726f6388 JA |
155 | return (1); |
156 | continue; | |
157 | ||
cce855bc JA |
158 | case '+': /* extended matching operators */ |
159 | case '@': | |
160 | case '!': | |
161 | if (*p == '(') /*) */ | |
162 | return (1); | |
163 | continue; | |
164 | ||
726f6388 JA |
165 | case '\\': |
166 | if (*p++ == '\0') | |
167 | return (0); | |
168 | } | |
169 | ||
170 | return (0); | |
171 | } | |
172 | ||
173 | /* Remove backslashes quoting characters in PATHNAME by modifying PATHNAME. */ | |
174 | static void | |
175 | dequote_pathname (pathname) | |
176 | char *pathname; | |
177 | { | |
178 | register int i, j; | |
179 | ||
180 | for (i = j = 0; pathname && pathname[i]; ) | |
181 | { | |
182 | if (pathname[i] == '\\') | |
183 | i++; | |
184 | ||
185 | pathname[j++] = pathname[i++]; | |
186 | ||
187 | if (!pathname[i - 1]) | |
188 | break; | |
189 | } | |
190 | pathname[j] = '\0'; | |
191 | } | |
192 | ||
193 | \f | |
cce855bc JA |
194 | |
195 | /* Test whether NAME exists. */ | |
196 | ||
197 | #if defined (HAVE_LSTAT) | |
198 | # define GLOB_TESTNAME(name) (lstat (name, &finfo)) | |
199 | #else /* !HAVE_LSTAT */ | |
200 | # if defined (SHELL) && !defined (AFS) | |
201 | # define GLOB_TESTNAME(name) (test_eaccess (nextname, F_OK)) | |
202 | # else /* !SHELL || AFS */ | |
203 | # define GLOB_TESTNAME(name) (access (nextname, F_OK)) | |
204 | # endif /* !SHELL || AFS */ | |
205 | #endif /* !HAVE_LSTAT */ | |
206 | ||
207 | /* Return 0 if DIR is a directory, -1 otherwise. */ | |
208 | static int | |
209 | glob_testdir (dir) | |
210 | char *dir; | |
211 | { | |
212 | struct stat finfo; | |
213 | ||
214 | if (stat (dir, &finfo) < 0) | |
215 | return (-1); | |
216 | ||
217 | if (S_ISDIR (finfo.st_mode) == 0) | |
218 | return (-1); | |
219 | ||
220 | return (0); | |
221 | } | |
222 | ||
726f6388 JA |
223 | /* Return a vector of names of files in directory DIR |
224 | whose names match glob pattern PAT. | |
225 | The names are not in any particular order. | |
226 | Wildcards at the beginning of PAT do not match an initial period. | |
227 | ||
228 | The vector is terminated by an element that is a null pointer. | |
229 | ||
230 | To free the space allocated, first free the vector's elements, | |
231 | then free the vector. | |
232 | ||
233 | Return 0 if cannot get enough memory to hold the pointer | |
234 | and the names. | |
235 | ||
236 | Return -1 if cannot access directory DIR. | |
237 | Look in errno for more information. */ | |
238 | ||
239 | char ** | |
240 | glob_vector (pat, dir) | |
241 | char *pat; | |
242 | char *dir; | |
243 | { | |
244 | struct globval | |
245 | { | |
246 | struct globval *next; | |
247 | char *name; | |
248 | }; | |
249 | ||
250 | DIR *d; | |
ccc6cda3 | 251 | register struct dirent *dp; |
726f6388 JA |
252 | struct globval *lastlink; |
253 | register struct globval *nextlink; | |
b72432fd | 254 | register char *nextname, *npat; |
726f6388 JA |
255 | unsigned int count; |
256 | int lose, skip; | |
257 | register char **name_vector; | |
258 | register unsigned int i; | |
cce855bc | 259 | int flags; /* Flags passed to fnmatch (). */ |
726f6388 JA |
260 | |
261 | lastlink = 0; | |
cce855bc | 262 | count = lose = skip = 0; |
726f6388 JA |
263 | |
264 | /* If PAT is empty, skip the loop, but return one (empty) filename. */ | |
cce855bc | 265 | if (pat == 0 || *pat == '\0') |
726f6388 | 266 | { |
cce855bc JA |
267 | if (glob_testdir (dir) < 0) |
268 | return ((char **) &glob_error_return); | |
269 | ||
726f6388 | 270 | nextlink = (struct globval *)alloca (sizeof (struct globval)); |
cce855bc | 271 | nextlink->next = (struct globval *)0; |
726f6388 | 272 | nextname = (char *) malloc (1); |
cce855bc | 273 | if (nextname == 0) |
726f6388 JA |
274 | lose = 1; |
275 | else | |
276 | { | |
277 | lastlink = nextlink; | |
278 | nextlink->name = nextname; | |
279 | nextname[0] = '\0'; | |
cce855bc | 280 | count = 1; |
726f6388 | 281 | } |
cce855bc | 282 | |
726f6388 JA |
283 | skip = 1; |
284 | } | |
285 | ||
cce855bc JA |
286 | /* If the filename pattern (PAT) does not contain any globbing characters, |
287 | we can dispense with reading the directory, and just see if there is | |
288 | a filename `DIR/PAT'. If there is, and we can access it, just make the | |
289 | vector to return and bail immediately. */ | |
290 | if (skip == 0 && glob_pattern_p (pat) == 0) | |
726f6388 | 291 | { |
cce855bc JA |
292 | int dirlen; |
293 | struct stat finfo; | |
294 | ||
295 | if (glob_testdir (dir) < 0) | |
296 | return ((char **) &glob_error_return); | |
297 | ||
298 | dirlen = strlen (dir); | |
299 | nextname = (char *)malloc (dirlen + strlen (pat) + 2); | |
b72432fd JA |
300 | npat = (char *)malloc (strlen (pat) + 1); |
301 | if (nextname == 0 || npat == 0) | |
cce855bc JA |
302 | lose = 1; |
303 | else | |
726f6388 | 304 | { |
b72432fd JA |
305 | strcpy (npat, pat); |
306 | dequote_pathname (npat); | |
307 | ||
cce855bc JA |
308 | strcpy (nextname, dir); |
309 | nextname[dirlen++] = '/'; | |
b72432fd | 310 | strcpy (nextname + dirlen, npat); |
cce855bc JA |
311 | |
312 | if (GLOB_TESTNAME (nextname) >= 0) | |
313 | { | |
314 | free (nextname); | |
315 | nextlink = (struct globval *)alloca (sizeof (struct globval)); | |
316 | nextlink->next = (struct globval *)0; | |
b72432fd JA |
317 | lastlink = nextlink; |
318 | nextlink->name = npat; | |
319 | count = 1; | |
cce855bc JA |
320 | } |
321 | else | |
b72432fd JA |
322 | { |
323 | free (nextname); | |
324 | free (npat); | |
325 | } | |
726f6388 | 326 | } |
726f6388 | 327 | |
cce855bc JA |
328 | skip = 1; |
329 | } | |
726f6388 | 330 | |
cce855bc JA |
331 | if (skip == 0) |
332 | { | |
333 | /* Open the directory, punting immediately if we cannot. If opendir | |
334 | is not robust (i.e., it opens non-directories successfully), test | |
335 | that DIR is a directory and punt if it's not. */ | |
336 | #if defined (OPENDIR_NOT_ROBUST) | |
337 | if (glob_testdir (dir) < 0) | |
338 | return ((char **) &glob_error_return); | |
339 | #endif | |
726f6388 | 340 | |
cce855bc JA |
341 | d = opendir (dir); |
342 | if (d == NULL) | |
343 | return ((char **) &glob_error_return); | |
344 | ||
345 | /* Compute the flags that will be passed to fnmatch(). We don't | |
28ef6c31 | 346 | need to do this every time through the loop. */ |
726f6388 JA |
347 | flags = (noglob_dot_filenames ? FNM_PERIOD : 0) | FNM_PATHNAME; |
348 | ||
cce855bc JA |
349 | #ifdef FNM_CASEFOLD |
350 | if (glob_ignore_case) | |
351 | flags |= FNM_CASEFOLD; | |
352 | #endif | |
353 | ||
354 | #ifdef SHELL | |
355 | if (extended_glob) | |
356 | flags |= FNM_EXTMATCH; | |
357 | #endif | |
358 | ||
359 | /* Scan the directory, finding all names that match. | |
360 | For each name that matches, allocate a struct globval | |
361 | on the stack and store the name in it. | |
362 | Chain those structs together; lastlink is the front of the chain. */ | |
363 | while (1) | |
726f6388 | 364 | { |
cce855bc JA |
365 | #if defined (SHELL) |
366 | /* Make globbing interruptible in the shell. */ | |
367 | if (interrupt_state) | |
726f6388 JA |
368 | { |
369 | lose = 1; | |
370 | break; | |
371 | } | |
cce855bc JA |
372 | #endif /* SHELL */ |
373 | ||
374 | dp = readdir (d); | |
375 | if (dp == NULL) | |
376 | break; | |
377 | ||
378 | /* If this directory entry is not to be used, try again. */ | |
379 | if (REAL_DIR_ENTRY (dp) == 0) | |
380 | continue; | |
381 | ||
b72432fd JA |
382 | /* If a leading dot need not be explicitly matched, and the pattern |
383 | doesn't start with a `.', don't match `.' or `..' */ | |
384 | #define dname dp->d_name | |
385 | if (noglob_dot_filenames == 0 && pat[0] != '.' && | |
386 | (pat[0] != '\\' || pat[1] != '.') && | |
387 | (dname[0] == '.' && | |
388 | (dname[1] == '\0' || (dname[1] == '.' && dname[2] == '\0')))) | |
389 | #undef dname | |
390 | continue; | |
391 | ||
cce855bc JA |
392 | /* If a dot must be explicity matched, check to see if they do. */ |
393 | if (noglob_dot_filenames && dp->d_name[0] == '.' && pat[0] != '.' && | |
394 | (pat[0] != '\\' || pat[1] != '.')) | |
395 | continue; | |
396 | ||
397 | if (fnmatch (pat, dp->d_name, flags) != FNM_NOMATCH) | |
398 | { | |
399 | nextlink = (struct globval *) alloca (sizeof (struct globval)); | |
400 | nextlink->next = lastlink; | |
401 | nextname = (char *) malloc (D_NAMLEN (dp) + 1); | |
402 | if (nextname == NULL) | |
403 | { | |
404 | lose = 1; | |
405 | break; | |
406 | } | |
407 | lastlink = nextlink; | |
408 | nextlink->name = nextname; | |
409 | bcopy (dp->d_name, nextname, D_NAMLEN (dp) + 1); | |
410 | ++count; | |
411 | } | |
726f6388 | 412 | } |
cce855bc JA |
413 | |
414 | (void) closedir (d); | |
726f6388 | 415 | } |
726f6388 | 416 | |
cce855bc | 417 | if (lose == 0) |
726f6388 JA |
418 | { |
419 | name_vector = (char **) malloc ((count + 1) * sizeof (char *)); | |
420 | lose |= name_vector == NULL; | |
421 | } | |
422 | ||
423 | /* Have we run out of memory? */ | |
726f6388 JA |
424 | if (lose) |
425 | { | |
426 | /* Here free the strings we have got. */ | |
427 | while (lastlink) | |
428 | { | |
429 | free (lastlink->name); | |
430 | lastlink = lastlink->next; | |
431 | } | |
432 | #if defined (SHELL) | |
433 | if (interrupt_state) | |
434 | throw_to_top_level (); | |
435 | #endif /* SHELL */ | |
cce855bc JA |
436 | |
437 | return ((char **)NULL); | |
726f6388 JA |
438 | } |
439 | ||
440 | /* Copy the name pointers from the linked list into the vector. */ | |
441 | for (i = 0; i < count; ++i) | |
442 | { | |
443 | name_vector[i] = lastlink->name; | |
444 | lastlink = lastlink->next; | |
445 | } | |
446 | ||
447 | name_vector[count] = NULL; | |
448 | return (name_vector); | |
449 | } | |
450 | \f | |
451 | /* Return a new array which is the concatenation of each string in ARRAY | |
452 | to DIR. This function expects you to pass in an allocated ARRAY, and | |
453 | it takes care of free()ing that array. Thus, you might think of this | |
454 | function as side-effecting ARRAY. */ | |
455 | static char ** | |
456 | glob_dir_to_array (dir, array) | |
457 | char *dir, **array; | |
458 | { | |
459 | register unsigned int i, l; | |
460 | int add_slash; | |
461 | char **result; | |
462 | ||
463 | l = strlen (dir); | |
464 | if (l == 0) | |
465 | return (array); | |
466 | ||
467 | add_slash = dir[l - 1] != '/'; | |
468 | ||
469 | i = 0; | |
470 | while (array[i] != NULL) | |
471 | ++i; | |
472 | ||
473 | result = (char **) malloc ((i + 1) * sizeof (char *)); | |
474 | if (result == NULL) | |
475 | return (NULL); | |
476 | ||
477 | for (i = 0; array[i] != NULL; i++) | |
478 | { | |
479 | result[i] = (char *) malloc (l + (add_slash ? 1 : 0) | |
480 | + strlen (array[i]) + 1); | |
481 | if (result[i] == NULL) | |
482 | return (NULL); | |
28ef6c31 | 483 | |
ccc6cda3 JA |
484 | strcpy (result[i], dir); |
485 | if (add_slash) | |
28ef6c31 | 486 | result[i][l] = '/'; |
ccc6cda3 | 487 | strcpy (result[i] + l + add_slash, array[i]); |
726f6388 JA |
488 | } |
489 | result[i] = NULL; | |
490 | ||
491 | /* Free the input array. */ | |
492 | for (i = 0; array[i] != NULL; i++) | |
493 | free (array[i]); | |
494 | free ((char *) array); | |
495 | ||
496 | return (result); | |
497 | } | |
498 | \f | |
499 | /* Do globbing on PATHNAME. Return an array of pathnames that match, | |
500 | marking the end of the array with a null-pointer as an element. | |
501 | If no pathnames match, then the array is empty (first element is null). | |
502 | If there isn't enough memory, then return NULL. | |
503 | If a file system error occurs, return -1; `errno' has the error code. */ | |
504 | char ** | |
505 | glob_filename (pathname) | |
506 | char *pathname; | |
507 | { | |
508 | char **result; | |
509 | unsigned int result_size; | |
510 | char *directory_name, *filename; | |
511 | unsigned int directory_len; | |
512 | ||
513 | result = (char **) malloc (sizeof (char *)); | |
514 | result_size = 1; | |
515 | if (result == NULL) | |
516 | return (NULL); | |
517 | ||
518 | result[0] = NULL; | |
519 | ||
520 | /* Find the filename. */ | |
521 | filename = strrchr (pathname, '/'); | |
522 | if (filename == NULL) | |
523 | { | |
524 | filename = pathname; | |
525 | directory_name = ""; | |
526 | directory_len = 0; | |
527 | } | |
528 | else | |
529 | { | |
530 | directory_len = (filename - pathname) + 1; | |
531 | directory_name = (char *) alloca (directory_len + 1); | |
532 | ||
533 | bcopy (pathname, directory_name, directory_len); | |
534 | directory_name[directory_len] = '\0'; | |
535 | ++filename; | |
536 | } | |
537 | ||
538 | /* If directory_name contains globbing characters, then we | |
539 | have to expand the previous levels. Just recurse. */ | |
540 | if (glob_pattern_p (directory_name)) | |
541 | { | |
542 | char **directories; | |
543 | register unsigned int i; | |
544 | ||
545 | if (directory_name[directory_len - 1] == '/') | |
546 | directory_name[directory_len - 1] = '\0'; | |
547 | ||
548 | directories = glob_filename (directory_name); | |
549 | ||
550 | if (directories == NULL) | |
551 | goto memory_error; | |
552 | else if (directories == (char **)&glob_error_return) | |
553 | { | |
ccc6cda3 | 554 | free ((char *) result); |
726f6388 JA |
555 | return ((char **) &glob_error_return); |
556 | } | |
557 | else if (*directories == NULL) | |
558 | { | |
559 | free ((char *) directories); | |
560 | free ((char *) result); | |
561 | return ((char **) &glob_error_return); | |
562 | } | |
563 | ||
564 | /* We have successfully globbed the preceding directory name. | |
565 | For each name in DIRECTORIES, call glob_vector on it and | |
566 | FILENAME. Concatenate the results together. */ | |
567 | for (i = 0; directories[i] != NULL; ++i) | |
568 | { | |
569 | char **temp_results; | |
570 | ||
571 | /* Scan directory even on a NULL pathname. That way, `*h/' | |
572 | returns only directories ending in `h', instead of all | |
573 | files ending in `h' with a `/' appended. */ | |
574 | temp_results = glob_vector (filename, directories[i]); | |
575 | ||
576 | /* Handle error cases. */ | |
577 | if (temp_results == NULL) | |
578 | goto memory_error; | |
579 | else if (temp_results == (char **)&glob_error_return) | |
580 | /* This filename is probably not a directory. Ignore it. */ | |
581 | ; | |
582 | else | |
583 | { | |
584 | char **array; | |
585 | register unsigned int l; | |
586 | ||
587 | array = glob_dir_to_array (directories[i], temp_results); | |
588 | l = 0; | |
589 | while (array[l] != NULL) | |
590 | ++l; | |
591 | ||
592 | result = | |
593 | (char **)realloc (result, (result_size + l) * sizeof (char *)); | |
594 | ||
595 | if (result == NULL) | |
596 | goto memory_error; | |
597 | ||
598 | for (l = 0; array[l] != NULL; ++l) | |
599 | result[result_size++ - 1] = array[l]; | |
600 | ||
601 | result[result_size - 1] = NULL; | |
602 | ||
603 | /* Note that the elements of ARRAY are not freed. */ | |
604 | free ((char *) array); | |
605 | } | |
606 | } | |
607 | /* Free the directories. */ | |
608 | for (i = 0; directories[i]; i++) | |
609 | free (directories[i]); | |
610 | ||
611 | free ((char *) directories); | |
612 | ||
613 | return (result); | |
614 | } | |
615 | ||
616 | /* If there is only a directory name, return it. */ | |
617 | if (*filename == '\0') | |
618 | { | |
619 | result = (char **) realloc ((char *) result, 2 * sizeof (char *)); | |
620 | if (result == NULL) | |
621 | return (NULL); | |
622 | result[0] = (char *) malloc (directory_len + 1); | |
623 | if (result[0] == NULL) | |
624 | goto memory_error; | |
625 | bcopy (directory_name, result[0], directory_len + 1); | |
626 | result[1] = NULL; | |
627 | return (result); | |
628 | } | |
629 | else | |
630 | { | |
631 | char **temp_results; | |
632 | ||
633 | /* There are no unquoted globbing characters in DIRECTORY_NAME. | |
634 | Dequote it before we try to open the directory since there may | |
635 | be quoted globbing characters which should be treated verbatim. */ | |
636 | if (directory_len > 0) | |
637 | dequote_pathname (directory_name); | |
638 | ||
639 | /* We allocated a small array called RESULT, which we won't be using. | |
640 | Free that memory now. */ | |
641 | free (result); | |
642 | ||
643 | /* Just return what glob_vector () returns appended to the | |
644 | directory name. */ | |
645 | temp_results = | |
646 | glob_vector (filename, (directory_len == 0 ? "." : directory_name)); | |
647 | ||
648 | if (temp_results == NULL || temp_results == (char **)&glob_error_return) | |
649 | return (temp_results); | |
650 | ||
651 | return (glob_dir_to_array (directory_name, temp_results)); | |
652 | } | |
653 | ||
654 | /* We get to memory_error if the program has run out of memory, or | |
655 | if this is the shell, and we have been interrupted. */ | |
656 | memory_error: | |
657 | if (result != NULL) | |
658 | { | |
659 | register unsigned int i; | |
660 | for (i = 0; result[i] != NULL; ++i) | |
661 | free (result[i]); | |
662 | free ((char *) result); | |
663 | } | |
664 | #if defined (SHELL) | |
665 | if (interrupt_state) | |
666 | throw_to_top_level (); | |
667 | #endif /* SHELL */ | |
668 | return (NULL); | |
669 | } | |
670 | \f | |
671 | #if defined (TEST) | |
672 | ||
673 | main (argc, argv) | |
674 | int argc; | |
675 | char **argv; | |
676 | { | |
677 | unsigned int i; | |
678 | ||
679 | for (i = 1; i < argc; ++i) | |
680 | { | |
681 | char **value = glob_filename (argv[i]); | |
682 | if (value == NULL) | |
683 | puts ("Out of memory."); | |
684 | else if (value == &glob_error_return) | |
685 | perror (argv[i]); | |
686 | else | |
687 | for (i = 0; value[i] != NULL; i++) | |
688 | puts (value[i]); | |
689 | } | |
690 | ||
691 | exit (0); | |
692 | } | |
693 | #endif /* TEST. */ |