1 /* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 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 not,
15 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 Boston, MA 02111-1307, 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>
36 /* Outcomment the following line for production quality code. */
37 /* #define NDEBUG 1 */
41 /* Comment out all this code if we are using the GNU C Library, and are not
42 actually compiling the library itself. This code is part of the GNU C
43 Library, but also included in many other GNU distributions. Compiling
44 and linking in this code is a waste when using the GNU C library
45 (especially if it is a shared library). Rather than having every GNU
46 program understand `configure --with-gnu-libc' and omit the object files,
47 it is simpler to just do this in the source for each such file. */
49 #define GLOB_INTERFACE_VERSION 1
50 #if !defined (_LIBC) && defined (__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1
51 #include <gnu-versions.h>
52 #if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
59 #if defined(STDC_HEADERS) || defined(__GNU_LIBRARY__)
63 #if defined HAVE_UNISTD_H || defined _LIBC
72 #if !defined (_AMIGA) && !defined (VMS) && !defined(WIN32)
76 #if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS)
80 #define __set_errno(val) errno = (val)
88 #if defined (HAVE_DIRENT_H) || defined (__GNU_LIBRARY__)
90 # define NAMLEN(dirent) strlen((dirent)->d_name)
92 # define dirent direct
93 # define NAMLEN(dirent) (dirent)->d_namlen
94 # ifdef HAVE_SYS_NDIR_H
95 # include <sys/ndir.h>
97 # ifdef HAVE_SYS_DIR_H
103 # ifdef HAVE_VMSDIR_H
105 # endif /* HAVE_VMSDIR_H */
109 /* In GNU systems, <dirent.h> defines this macro for us. */
112 #define NAMLEN(d) _D_NAMLEN(d)
116 #if (defined (POSIX) || defined (WIN32)) && !defined (__GNU_LIBRARY__)
117 /* Posix does not require that the d_ino field be present, and some
118 systems do not provide it. */
119 #define REAL_DIR_ENTRY(dp) 1
121 #define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
124 #if (defined (STDC_HEADERS) || defined (__GNU_LIBRARY__))
128 #else /* No standard headers. */
130 extern char *getenv ();
142 extern char *malloc (), *realloc ();
145 extern void qsort ();
146 extern void abort (), exit ();
148 #endif /* Standard headers. */
153 extern void bzero ();
156 extern void bcopy ();
159 #define memcpy(d, s, n) bcopy ((s), (d), (n))
160 #define strrchr rindex
161 /* memset is only used for zero here, but let's be paranoid. */
162 #define memset(s, better_be_zero, n) \
163 ((void) ((better_be_zero) == 0 ? (bzero((s), (n)), 0) : (abort(), 0)))
164 #endif /* Not ANSI_STRING. */
166 #if !defined HAVE_STRCOLL && !defined _LIBC
167 #define strcoll strcmp
171 #ifndef __GNU_LIBRARY__
185 /* These casts are the for sake of the broken Ultrix compiler,
186 which warns of illegal pointer combinations otherwise. */
188 return (char *) malloc (n);
189 return (char *) realloc (p, n);
191 #define realloc my_realloc
193 #endif /* __GNU_LIBRARY__ */
196 #if !defined(__alloca) && !defined(__GNU_LIBRARY__)
200 #define alloca(n) __builtin_alloca (n)
204 #else /* Not HAVE_ALLOCA_H. */
209 extern char *alloca ();
211 #endif /* Not _AIX. */
212 #endif /* sparc or HAVE_ALLOCA_H. */
215 #define __alloca alloca
219 #ifndef __GNU_LIBRARY__
221 #ifdef STAT_MACROS_BROKEN
225 #define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
229 #if !(defined (STDC_HEADERS) || defined (__GNU_LIBRARY__))
231 #define size_t unsigned int
234 /* Some system header files erroneously define these.
235 We want our own definitions from <fnmatch.h> to take precedence. */
241 /* Some system header files erroneously define these.
242 We want our own definitions from <glob.h> to take precedence. */
253 static int glob_in_dir __P ((const char *pattern, const char *directory,
255 int (*errfunc) __P ((const char *, int)),
257 static int prefix_array __P ((const char *prefix, char **array, size_t n));
258 static int collated_compare __P ((const __ptr_t, const __ptr_t));
261 /* Find the end of the sub-pattern in a brace expression. We define
262 this as an inline function if the compiler permits. */
264 #if __GNUC__ - 0 >= 2
268 next_brace_sub (const char *begin)
270 unsigned int depth = 0;
271 const char *cp = begin;
277 if (*cp != ',' && *cp != '}' && *cp != '\0')
287 while (*cp != '\0' && (*cp != '}' || depth > 0))
294 /* An incorrectly terminated brace expression. */
305 /* Do glob searching for PATTERN, placing results in PGLOB.
306 The bits defined above may be set in FLAGS.
307 If a directory cannot be opened or read and ERRFUNC is not nil,
308 it is called with the pathname that caused the error, and the
309 `errno' value from the failing call; if it returns non-zero
310 `glob' returns GLOB_ABEND; if it returns zero, the error is ignored.
311 If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
312 Otherwise, `glob' returns zero. */
314 glob (pattern, flags, errfunc, pglob)
317 int (*errfunc) __P ((const char *, int));
320 const char *filename;
326 if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0)
328 __set_errno (EINVAL);
332 if (flags & GLOB_BRACE)
334 const char *begin = strchr (pattern, '{');
337 /* Allocate working buffer large enough for our work. Note that
338 we have at least an opening and closing brace. */
346 char onealt[strlen (pattern) - 1];
348 char *onealt = (char *) malloc (strlen (pattern) - 1);
351 if (!(flags & GLOB_APPEND))
357 /* We know the prefix for all sub-patterns. */
358 memcpy (onealt, pattern, begin - pattern);
359 alt_start = &onealt[begin - pattern];
361 /* Find the first sub-pattern and at the same time find the
362 rest after the closing brace. */
363 next = next_brace_sub (begin + 1);
366 /* It is an illegal expression. */
370 return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
373 /* Now find the end of the whole brace expression. */
377 rest = next_brace_sub (rest + 1);
380 /* It is an illegal expression. */
384 return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
387 /* Please note that we now can be sure the brace expression
389 rest_len = strlen (++rest) + 1;
391 /* We have a brace expression. BEGIN points to the opening {,
392 NEXT points past the terminator of the first element, and END
393 points past the final }. We will accumulate result names from
394 recursive runs for each brace alternative in the buffer using
397 if (!(flags & GLOB_APPEND))
399 /* This call is to set a new vector, so clear out the
400 vector so we can append to it. */
402 pglob->gl_pathv = NULL;
404 firstc = pglob->gl_pathc;
411 /* Construct the new glob expression. */
412 memcpy (alt_start, p, next - p);
413 memcpy (&alt_start[next - p], rest, rest_len);
415 result = glob (onealt,
416 ((flags & ~(GLOB_NOCHECK|GLOB_NOMAGIC))
417 | GLOB_APPEND), errfunc, pglob);
419 /* If we got an error, return it. */
420 if (result && result != GLOB_NOMATCH)
425 if (!(flags & GLOB_APPEND))
431 /* We saw the last entry. */
435 next = next_brace_sub (p);
436 assert (next != NULL);
443 if (pglob->gl_pathc != firstc)
444 /* We found some entries. */
446 else if (!(flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
451 /* Find the filename. */
452 filename = strrchr (pattern, '/');
453 if (filename == NULL)
457 dirname = (char *) "";
459 dirname = (char *) ".";
463 else if (filename == pattern)
466 dirname = (char *) "/";
472 dirlen = filename - pattern;
473 dirname = (char *) __alloca (dirlen + 1);
474 memcpy (dirname, pattern, dirlen);
475 dirname[dirlen] = '\0';
479 if (filename[0] == '\0' && dirlen > 1)
480 /* "pattern/". Expand "pattern", appending slashes. */
482 int val = glob (dirname, flags | GLOB_MARK, errfunc, pglob);
484 pglob->gl_flags = (pglob->gl_flags & ~GLOB_MARK) | (flags & GLOB_MARK);
488 if (!(flags & GLOB_APPEND))
491 pglob->gl_pathv = NULL;
494 oldcount = pglob->gl_pathc;
497 if ((flags & GLOB_TILDE) && dirname[0] == '~')
499 if (dirname[1] == '\0' || dirname[1] == '/')
501 /* Look up home directory. */
502 char *home_dir = getenv ("HOME");
504 if (home_dir == NULL || home_dir[0] == '\0')
508 if (home_dir == NULL || home_dir[0] == '\0')
509 home_dir = "c:/users/default"; /* poor default */
511 if (home_dir == NULL || home_dir[0] == '\0')
513 extern char *getlogin __P ((void));
514 extern int getlogin_r __P ((char *, size_t));
517 #if defined HAVE_GETLOGIN_R || defined _LIBC
518 size_t buflen = sysconf (_SC_LOGIN_NAME_MAX) + 1;
522 /* `sysconf' does not support _SC_LOGIN_NAME_MAX. Try
525 name = __alloca (buflen);
527 success = getlogin_r (name, buflen) >= 0;
530 success = (name = getlogin ()) != NULL;
534 #if defined HAVE_GETPWNAM_R || defined _LIBC
535 size_t pwbuflen = sysconf (_SC_GETPW_R_SIZE_MAX);
537 struct passwd pwbuf, *p;
539 pwtmpbuf = __alloca (pwbuflen);
541 success = (__getpwnam_r (name, &pwbuf, pwtmpbuf,
544 struct passwd *p = getpwnam (name);
548 home_dir = p->pw_dir;
551 if (home_dir == NULL || home_dir[0] == '\0')
552 home_dir = (char *) "~"; /* No luck. */
555 /* Now construct the full directory. */
556 if (dirname[1] == '\0')
561 size_t home_len = strlen (home_dir);
562 newp = __alloca (home_len + dirlen);
563 memcpy (newp, home_dir, home_len);
564 memcpy (&newp[home_len], &dirname[1], dirlen);
568 #if !defined _AMIGA && !defined WIN32
571 char *end_name = strchr (dirname, '/');
575 if (end_name == NULL)
576 user_name = dirname + 1;
579 user_name = __alloca (end_name - dirname);
580 memcpy (user_name, dirname + 1, end_name - dirname);
581 user_name[end_name - dirname - 1] = '\0';
584 /* Look up specific user's home directory. */
586 #if defined HAVE_GETPWNAM_R || defined _LIBC
587 size_t buflen = sysconf (_SC_GETPW_R_SIZE_MAX);
588 char *pwtmpbuf = __alloca (buflen);
589 struct passwd pwbuf, *p;
590 if (__getpwnam_r (user_name, &pwbuf, pwtmpbuf, buflen, &p) >= 0)
591 home_dir = p->pw_dir;
595 struct passwd *p = getpwnam (user_name);
597 home_dir = p->pw_dir;
602 /* If we found a home directory use this. */
603 if (home_dir != NULL)
606 size_t home_len = strlen (home_dir);
607 size_t rest_len = end_name == NULL ? 0 : strlen (end_name);
608 newp = __alloca (home_len + rest_len + 1);
609 memcpy (newp, home_dir, home_len);
610 memcpy (&newp[home_len], end_name, rest_len);
611 newp[home_len + rest_len] = '\0';
615 #endif /* Not Amiga && not Win32. */
617 #endif /* Not VMS. */
619 if (__glob_pattern_p (dirname, !(flags & GLOB_NOESCAPE)))
621 /* The directory name contains metacharacters, so we
622 have to glob for the directory, and then glob for
623 the pattern in each directory found. */
627 status = glob (dirname,
628 ((flags & (GLOB_ERR | GLOB_NOCHECK | GLOB_NOESCAPE)) |
634 /* We have successfully globbed the preceding directory name.
635 For each name we found, call glob_in_dir on it and FILENAME,
636 appending the results to PGLOB. */
637 for (i = 0; i < dirs.gl_pathc; ++i)
643 /* Make globbing interruptible in the bash shell. */
644 extern int interrupt_state;
655 oldcount = pglob->gl_pathc;
656 status = glob_in_dir (filename, dirs.gl_pathv[i],
657 (flags | GLOB_APPEND) & ~GLOB_NOCHECK,
659 if (status == GLOB_NOMATCH)
660 /* No matches in this directory. Try the next. */
670 /* Stick the directory on the front of each name. */
671 if (prefix_array (dirs.gl_pathv[i],
672 &pglob->gl_pathv[oldcount],
673 pglob->gl_pathc - oldcount))
681 flags |= GLOB_MAGCHAR;
683 if (pglob->gl_pathc == oldcount)
685 if (flags & GLOB_NOCHECK)
687 size_t len = strlen (pattern) + 1;
688 char *patcopy = (char *) malloc (len);
691 memcpy (patcopy, pattern, len);
694 = (char **) realloc (pglob->gl_pathv,
696 ((flags & GLOB_DOOFFS) ?
697 pglob->gl_offs : 0) +
700 if (pglob->gl_pathv == NULL)
706 if (flags & GLOB_DOOFFS)
707 while (pglob->gl_pathc < pglob->gl_offs)
708 pglob->gl_pathv[pglob->gl_pathc++] = NULL;
710 pglob->gl_pathv[pglob->gl_pathc++] = patcopy;
711 pglob->gl_pathv[pglob->gl_pathc] = NULL;
712 pglob->gl_flags = flags;
719 status = glob_in_dir (filename, dirname, flags, errfunc, pglob);
725 /* Stick the directory on the front of each name. */
726 if (prefix_array (dirname,
727 &pglob->gl_pathv[oldcount],
728 pglob->gl_pathc - oldcount))
736 if (flags & GLOB_MARK)
738 /* Append slashes to directory names. */
741 for (i = oldcount; i < pglob->gl_pathc; ++i)
742 if (((flags & GLOB_ALTDIRFUNC) ?
743 (*pglob->gl_stat) (pglob->gl_pathv[i], &st) :
744 __stat (pglob->gl_pathv[i], &st)) == 0 &&
745 S_ISDIR (st.st_mode))
747 size_t len = strlen (pglob->gl_pathv[i]) + 2;
748 char *new = realloc (pglob->gl_pathv[i], len);
754 strcpy (&new[len - 2], "/");
755 pglob->gl_pathv[i] = new;
759 if (!(flags & GLOB_NOSORT))
760 /* Sort the vector. */
761 qsort ((__ptr_t) &pglob->gl_pathv[oldcount],
762 pglob->gl_pathc - oldcount,
763 sizeof (char *), collated_compare);
769 /* Free storage allocated in PGLOB by a previous `glob' call. */
772 register glob_t *pglob;
774 if (pglob->gl_pathv != NULL)
777 for (i = 0; i < pglob->gl_pathc; ++i)
778 if (pglob->gl_pathv[i] != NULL)
779 free ((__ptr_t) pglob->gl_pathv[i]);
780 free ((__ptr_t) pglob->gl_pathv);
785 /* Do a collated comparison of A and B. */
787 collated_compare (a, b)
791 const char *const s1 = *(const char *const * const) a;
792 const char *const s2 = *(const char *const * const) b;
800 return strcoll (s1, s2);
804 /* Prepend DIRNAME to each of N members of ARRAY, replacing ARRAY's
805 elements in place. Return nonzero if out of memory, zero if successful.
806 A slash is inserted between DIRNAME and each elt of ARRAY,
807 unless DIRNAME is just "/". Each old element of ARRAY is freed. */
809 prefix_array (dirname, array, n)
815 size_t dirlen = strlen (dirname);
817 if (dirlen == 1 && dirname[0] == '/')
818 /* DIRNAME is just "/", so normal prepending would get us "//foo".
819 We want "/foo" instead, so don't prepend any chars from DIRNAME. */
822 for (i = 0; i < n; ++i)
824 size_t eltlen = strlen (array[i]) + 1;
825 char *new = (char *) malloc (dirlen + 1 + eltlen);
829 free ((__ptr_t) array[--i]);
833 memcpy (new, dirname, dirlen);
835 memcpy (&new[dirlen + 1], array[i], eltlen);
836 free ((__ptr_t) array[i]);
844 /* Return nonzero if PATTERN contains any metacharacters.
845 Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
847 __glob_pattern_p (pattern, quote)
851 register const char *p;
854 for (p = pattern; *p != '\0'; ++p)
862 if (quote && p[1] != '\0')
879 weak_alias (__glob_pattern_p, glob_pattern_p)
883 /* Like `glob', but PATTERN is a final pathname component,
884 and matches are searched for in DIRECTORY.
885 The GLOB_NOSORT bit in FLAGS is ignored. No sorting is ever done.
886 The GLOB_APPEND flag is assumed to be set (always appends). */
888 glob_in_dir (pattern, directory, flags, errfunc, pglob)
890 const char *directory;
892 int (*errfunc) __P ((const char *, int));
899 struct globlink *next;
902 struct globlink *names = NULL;
905 if (!__glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE)))
908 flags |= GLOB_NOCHECK;
912 flags |= GLOB_MAGCHAR;
914 stream = ((flags & GLOB_ALTDIRFUNC) ?
915 (*pglob->gl_opendir) (directory) :
916 (__ptr_t) opendir (directory));
919 if ((errfunc != NULL && (*errfunc) (directory, errno)) ||
928 struct dirent *d = ((flags & GLOB_ALTDIRFUNC) ?
929 (*pglob->gl_readdir) (stream) :
930 readdir ((DIR *) stream));
933 if (! REAL_DIR_ENTRY (d))
938 if (fnmatch (pattern, name,
939 (!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0) |
940 ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)
947 = (struct globlink *) __alloca (sizeof (struct globlink));
950 = (char *) malloc (len + 1);
951 if (new->name == NULL)
953 memcpy ((__ptr_t) new->name, name, len);
954 new->name[len] = '\0';
962 if (nfound == 0 && (flags & GLOB_NOMAGIC) &&
963 ! __glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE)))
964 flags |= GLOB_NOCHECK;
966 if (nfound == 0 && (flags & GLOB_NOCHECK))
968 size_t len = strlen (pattern);
970 names = (struct globlink *) __alloca (sizeof (struct globlink));
972 names->name = (char *) malloc (len + 1);
973 if (names->name == NULL)
975 memcpy (names->name, pattern, len);
976 names->name[len] = '\0';
980 = (char **) realloc (pglob->gl_pathv,
982 ((flags & GLOB_DOOFFS) ? pglob->gl_offs : 0) +
985 if (pglob->gl_pathv == NULL)
988 if (flags & GLOB_DOOFFS)
989 while (pglob->gl_pathc < pglob->gl_offs)
990 pglob->gl_pathv[pglob->gl_pathc++] = NULL;
992 for (; names != NULL; names = names->next)
993 pglob->gl_pathv[pglob->gl_pathc++] = names->name;
994 pglob->gl_pathv[pglob->gl_pathc] = NULL;
996 pglob->gl_flags = flags;
1001 if (flags & GLOB_ALTDIRFUNC)
1002 (*pglob->gl_closedir) (stream);
1004 closedir ((DIR *) stream);
1007 return nfound == 0 ? GLOB_NOMATCH : 0;
1012 if (flags & GLOB_ALTDIRFUNC)
1013 (*pglob->gl_closedir) (stream);
1015 closedir ((DIR *) stream);
1018 while (names != NULL)
1020 if (names->name != NULL)
1021 free ((__ptr_t) names->name);
1022 names = names->next;
1024 return GLOB_NOSPACE;
1027 #endif /* Not ELIDE_CODE. */