1 /* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
3 This library is free software; you can redistribute it and/or
4 modify it under the terms of the GNU Library General Public License as
5 published by the Free Software Foundation; either version 2 of the
6 License, or (at your option) any later version.
8 This library is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 Library General Public License for more details.
13 You should have received a copy of the GNU Library General Public
14 License along with this library; see the file COPYING.LIB. If
15 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
16 Cambridge, MA 02139, USA. */
18 /* AIX requires this to be the first thing in the file. */
19 #if defined (_AIX) && !defined (__GNUC__)
27 /* Enable GNU extensions in glob.h. */
33 #include <sys/types.h>
37 /* Comment out all this code if we are using the GNU C Library, and are not
38 actually compiling the library itself. This code is part of the GNU C
39 Library, but also included in many other GNU distributions. Compiling
40 and linking in this code is a waste when using the GNU C library
41 (especially if it is a shared library). Rather than having every GNU
42 program understand `configure --with-gnu-libc' and omit the object files,
43 it is simpler to just do this in the source for each such file. */
45 #define GLOB_INTERFACE_VERSION 1
46 #if !defined (_LIBC) && defined (__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1
47 #include <gnu-versions.h>
48 #if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
68 #if !defined (_AMIGA) && !defined (VMS)
72 #if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS)
81 #if defined (HAVE_DIRENT_H) || defined (__GNU_LIBRARY__)
83 # define NAMLEN(dirent) strlen((dirent)->d_name)
85 # define dirent direct
86 # define NAMLEN(dirent) (dirent)->d_namlen
87 # ifdef HAVE_SYS_NDIR_H
88 # include <sys/ndir.h>
90 # ifdef HAVE_SYS_DIR_H
98 # endif /* HAVE_VMSDIR_H */
102 /* In GNU systems, <dirent.h> defines this macro for us. */
105 #define NAMLEN(d) _D_NAMLEN(d)
109 #if defined (POSIX) && !defined (__GNU_LIBRARY__)
110 /* Posix does not require that the d_ino field be present, and some
111 systems do not provide it. */
112 #define REAL_DIR_ENTRY(dp) 1
114 #define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
117 #if (defined (STDC_HEADERS) || defined (__GNU_LIBRARY__))
121 #else /* No standard headers. */
123 extern char *getenv ();
135 extern char *malloc (), *realloc ();
138 extern void qsort ();
139 extern void abort (), exit ();
141 #endif /* Standard headers. */
146 extern void bzero ();
149 extern void bcopy ();
152 #define memcpy(d, s, n) bcopy ((s), (d), (n))
153 #define strrchr rindex
154 /* memset is only used for zero here, but let's be paranoid. */
155 #define memset(s, better_be_zero, n) \
156 ((void) ((better_be_zero) == 0 ? (bzero((s), (n)), 0) : (abort(), 0)))
157 #endif /* Not ANSI_STRING. */
160 #define strcoll strcmp
164 #ifndef __GNU_LIBRARY__
174 /* These casts are the for sake of the broken Ultrix compiler,
175 which warns of illegal pointer combinations otherwise. */
177 return (char *) malloc (n);
178 return (char *) realloc (p, n);
180 #define realloc my_realloc
182 #endif /* __GNU_LIBRARY__ */
185 #if !defined(__alloca) && !defined(__GNU_LIBRARY__)
189 #define alloca(n) __builtin_alloca (n)
191 #if defined (sparc) || defined (HAVE_ALLOCA_H)
193 #else /* Not sparc or HAVE_ALLOCA_H. */
195 extern char *alloca ();
196 #endif /* Not _AIX. */
197 #endif /* sparc or HAVE_ALLOCA_H. */
200 #define __alloca alloca
204 #ifndef __GNU_LIBRARY__
206 #ifdef STAT_MACROS_BROKEN
210 #define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
216 #define size_t unsigned int
219 /* Some system header files erroneously define these.
220 We want our own definitions from <fnmatch.h> to take precedence. */
226 /* Some system header files erroneously define these.
227 We want our own definitions from <glob.h> to take precedence. */
238 static int glob_pattern_p __P ((const char *pattern, int quote));
239 static int glob_in_dir __P ((const char *pattern, const char *directory,
241 int (*errfunc) __P ((const char *, int)),
243 static int prefix_array __P ((const char *prefix, char **array, size_t n));
244 static int collated_compare __P ((const __ptr_t, const __ptr_t));
246 /* Do glob searching for PATTERN, placing results in PGLOB.
247 The bits defined above may be set in FLAGS.
248 If a directory cannot be opened or read and ERRFUNC is not nil,
249 it is called with the pathname that caused the error, and the
250 `errno' value from the failing call; if it returns non-zero
251 `glob' returns GLOB_ABEND; if it returns zero, the error is ignored.
252 If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
253 Otherwise, `glob' returns zero. */
255 glob (pattern, flags, errfunc, pglob)
258 int (*errfunc) __P ((const char *, int));
261 const char *filename;
267 if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0)
273 if (flags & GLOB_BRACE)
275 const char *begin = strchr (pattern, '{');
280 const char *p, *end, *next;
281 unsigned int depth = 0;
283 /* Find the end of the brace expression, by counting braces.
284 While we're at it, notice the first comma at top brace level. */
292 if (depth == 0 && next == NULL)
303 return glob (pattern, flags &~ GLOB_BRACE, errfunc, pglob);
307 restlen = strlen (end) + 1;
311 /* We have a brace expression. BEGIN points to the opening {,
312 NEXT points past the terminator of the first element, and END
313 points past the final }. We will accumulate result names from
314 recursive runs for each brace alternative in the buffer using
317 if (!(flags & GLOB_APPEND))
319 /* This call is to set a new vector, so clear out the
320 vector so we can append to it. */
322 pglob->gl_pathv = NULL;
324 firstc = pglob->gl_pathc;
326 /* In this loop P points to the beginning of the current element
327 and NEXT points past its terminator. */
331 /* Construct a whole name that is one of the brace
332 alternatives in a temporary buffer. */
334 size_t bufsz = (begin - pattern) + (next - 1 - p) + restlen;
338 char *onealt = malloc (bufsz);
341 if (!(flags & GLOB_APPEND))
346 memcpy (onealt, pattern, begin - pattern);
347 memcpy (&onealt[begin - pattern], p, next - 1 - p);
348 memcpy (&onealt[(begin - pattern) + (next - 1 - p)],
350 result = glob (onealt,
351 ((flags & ~(GLOB_NOCHECK|GLOB_NOMAGIC)) |
352 GLOB_APPEND), errfunc, pglob);
357 /* If we got an error, return it. */
358 if (result && result != GLOB_NOMATCH)
360 if (!(flags & GLOB_APPEND))
365 /* Advance past this alternative and process the next. */
374 /* Found the next alternative. Loop to glob it. */
384 /* End of the brace expression. Break out of the loop. */
390 if (pglob->gl_pathc == firstc &&
391 !(flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
396 /* Find the filename. */
397 filename = strrchr (pattern, '/');
398 if (filename == NULL)
402 dirname = (char *) "";
404 dirname = (char *) ".";
408 else if (filename == pattern)
411 dirname = (char *) "/";
417 dirlen = filename - pattern;
418 dirname = (char *) __alloca (dirlen + 1);
419 memcpy (dirname, pattern, dirlen);
420 dirname[dirlen] = '\0';
424 if (filename[0] == '\0' && dirlen > 1)
425 /* "pattern/". Expand "pattern", appending slashes. */
427 int val = glob (dirname, flags | GLOB_MARK, errfunc, pglob);
429 pglob->gl_flags = (pglob->gl_flags & ~GLOB_MARK) | (flags & GLOB_MARK);
433 if (!(flags & GLOB_APPEND))
436 pglob->gl_pathv = NULL;
439 oldcount = pglob->gl_pathc;
442 if ((flags & GLOB_TILDE) && dirname[0] == '~')
444 if (dirname[1] == '\0')
446 /* Look up home directory. */
447 dirname = getenv ("HOME");
449 if (dirname == NULL || dirname[0] == '\0')
452 if (dirname == NULL || dirname[0] == '\0')
454 extern char *getlogin __P ((void));
455 char *name = getlogin ();
458 struct passwd *p = getpwnam (name);
463 if (dirname == NULL || dirname[0] == '\0')
464 dirname = (char *) "~"; /* No luck. */
470 if (dirname == NULL || dirname[0] == '\0')
473 /* Look up specific user's home directory. */
474 struct passwd *p = getpwnam (dirname + 1);
480 #endif /* Not VMS. */
482 if (glob_pattern_p (dirname, !(flags & GLOB_NOESCAPE)))
484 /* The directory name contains metacharacters, so we
485 have to glob for the directory, and then glob for
486 the pattern in each directory found. */
490 status = glob (dirname,
491 ((flags & (GLOB_ERR | GLOB_NOCHECK | GLOB_NOESCAPE)) |
497 /* We have successfully globbed the preceding directory name.
498 For each name we found, call glob_in_dir on it and FILENAME,
499 appending the results to PGLOB. */
500 for (i = 0; i < dirs.gl_pathc; ++i)
506 /* Make globbing interruptible in the bash shell. */
507 extern int interrupt_state;
518 oldcount = pglob->gl_pathc;
519 status = glob_in_dir (filename, dirs.gl_pathv[i],
520 (flags | GLOB_APPEND) & ~GLOB_NOCHECK,
522 if (status == GLOB_NOMATCH)
523 /* No matches in this directory. Try the next. */
533 /* Stick the directory on the front of each name. */
534 if (prefix_array (dirs.gl_pathv[i],
535 &pglob->gl_pathv[oldcount],
536 pglob->gl_pathc - oldcount))
544 flags |= GLOB_MAGCHAR;
546 if (pglob->gl_pathc == oldcount)
548 if (flags & GLOB_NOCHECK)
550 size_t len = strlen (pattern) + 1;
551 char *patcopy = (char *) malloc (len);
554 memcpy (patcopy, pattern, len);
557 = (char **) realloc (pglob->gl_pathv,
559 ((flags & GLOB_DOOFFS) ?
560 pglob->gl_offs : 0) +
563 if (pglob->gl_pathv == NULL)
569 if (flags & GLOB_DOOFFS)
570 while (pglob->gl_pathc < pglob->gl_offs)
571 pglob->gl_pathv[pglob->gl_pathc++] = NULL;
573 pglob->gl_pathv[pglob->gl_pathc++] = patcopy;
574 pglob->gl_pathv[pglob->gl_pathc] = NULL;
575 pglob->gl_flags = flags;
582 status = glob_in_dir (filename, dirname, flags, errfunc, pglob);
588 /* Stick the directory on the front of each name. */
589 if (prefix_array (dirname,
590 &pglob->gl_pathv[oldcount],
591 pglob->gl_pathc - oldcount))
599 if (flags & GLOB_MARK)
601 /* Append slashes to directory names. */
604 for (i = oldcount; i < pglob->gl_pathc; ++i)
605 if (((flags & GLOB_ALTDIRFUNC) ?
606 (*pglob->gl_stat) (pglob->gl_pathv[i], &st) :
607 __stat (pglob->gl_pathv[i], &st)) == 0 &&
608 S_ISDIR (st.st_mode))
610 size_t len = strlen (pglob->gl_pathv[i]) + 2;
611 char *new = realloc (pglob->gl_pathv[i], len);
617 strcpy (&new[len - 2], "/");
618 pglob->gl_pathv[i] = new;
622 if (!(flags & GLOB_NOSORT))
623 /* Sort the vector. */
624 qsort ((__ptr_t) &pglob->gl_pathv[oldcount],
625 pglob->gl_pathc - oldcount,
626 sizeof (char *), collated_compare);
632 /* Free storage allocated in PGLOB by a previous `glob' call. */
635 register glob_t *pglob;
637 if (pglob->gl_pathv != NULL)
640 for (i = 0; i < pglob->gl_pathc; ++i)
641 if (pglob->gl_pathv[i] != NULL)
642 free ((__ptr_t) pglob->gl_pathv[i]);
643 free ((__ptr_t) pglob->gl_pathv);
648 /* Do a collated comparison of A and B. */
650 collated_compare (a, b)
654 const char *const s1 = *(const char *const * const) a;
655 const char *const s2 = *(const char *const * const) b;
663 return strcoll (s1, s2);
667 /* Prepend DIRNAME to each of N members of ARRAY, replacing ARRAY's
668 elements in place. Return nonzero if out of memory, zero if successful.
669 A slash is inserted between DIRNAME and each elt of ARRAY,
670 unless DIRNAME is just "/". Each old element of ARRAY is freed. */
672 prefix_array (dirname, array, n)
678 size_t dirlen = strlen (dirname);
680 if (dirlen == 1 && dirname[0] == '/')
681 /* DIRNAME is just "/", so normal prepending would get us "//foo".
682 We want "/foo" instead, so don't prepend any chars from DIRNAME. */
685 for (i = 0; i < n; ++i)
687 size_t eltlen = strlen (array[i]) + 1;
688 char *new = (char *) malloc (dirlen + 1 + eltlen);
692 free ((__ptr_t) array[--i]);
696 memcpy (new, dirname, dirlen);
698 memcpy (&new[dirlen + 1], array[i], eltlen);
699 free ((__ptr_t) array[i]);
707 /* Return nonzero if PATTERN contains any metacharacters.
708 Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
710 glob_pattern_p (pattern, quote)
714 register const char *p;
717 for (p = pattern; *p != '\0'; ++p)
725 if (quote && p[1] != '\0')
743 /* Like `glob', but PATTERN is a final pathname component,
744 and matches are searched for in DIRECTORY.
745 The GLOB_NOSORT bit in FLAGS is ignored. No sorting is ever done.
746 The GLOB_APPEND flag is assumed to be set (always appends). */
748 glob_in_dir (pattern, directory, flags, errfunc, pglob)
750 const char *directory;
752 int (*errfunc) __P ((const char *, int));
759 struct globlink *next;
762 struct globlink *names = NULL;
765 if (!glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE)))
768 flags |= GLOB_NOCHECK;
772 flags |= GLOB_MAGCHAR;
774 stream = ((flags & GLOB_ALTDIRFUNC) ?
775 (*pglob->gl_opendir) (directory) :
776 (__ptr_t) opendir (directory));
779 if ((errfunc != NULL && (*errfunc) (directory, errno)) ||
788 struct dirent *d = ((flags & GLOB_ALTDIRFUNC) ?
789 (*pglob->gl_readdir) (stream) :
790 readdir ((DIR *) stream));
793 if (! REAL_DIR_ENTRY (d))
798 if (fnmatch (pattern, name,
799 (!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0) |
800 ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)
807 = (struct globlink *) __alloca (sizeof (struct globlink));
810 = (char *) malloc (len + 1);
811 if (new->name == NULL)
813 memcpy ((__ptr_t) new->name, name, len);
814 new->name[len] = '\0';
822 if (nfound == 0 && (flags & GLOB_NOMAGIC) &&
823 ! glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE)))
824 flags |= GLOB_NOCHECK;
826 if (nfound == 0 && (flags & GLOB_NOCHECK))
828 size_t len = strlen (pattern);
830 names = (struct globlink *) __alloca (sizeof (struct globlink));
832 names->name = (char *) malloc (len + 1);
833 if (names->name == NULL)
835 memcpy (names->name, pattern, len);
836 names->name[len] = '\0';
840 = (char **) realloc (pglob->gl_pathv,
842 ((flags & GLOB_DOOFFS) ? pglob->gl_offs : 0) +
845 if (pglob->gl_pathv == NULL)
848 if (flags & GLOB_DOOFFS)
849 while (pglob->gl_pathc < pglob->gl_offs)
850 pglob->gl_pathv[pglob->gl_pathc++] = NULL;
852 for (; names != NULL; names = names->next)
853 pglob->gl_pathv[pglob->gl_pathc++] = names->name;
854 pglob->gl_pathv[pglob->gl_pathc] = NULL;
856 pglob->gl_flags = flags;
861 if (flags & GLOB_ALTDIRFUNC)
862 (*pglob->gl_closedir) (stream);
864 closedir ((DIR *) stream);
867 return nfound == 0 ? GLOB_NOMATCH : 0;
872 if (flags & GLOB_ALTDIRFUNC)
873 (*pglob->gl_closedir) (stream);
875 closedir ((DIR *) stream);
878 while (names != NULL)
880 if (names->name != NULL)
881 free ((__ptr_t) names->name);
887 #endif /* Not ELIDE_CODE. */