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
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
99 /* In GNU systems, <dirent.h> defines this macro for us. */
102 #define NAMLEN(d) _D_NAMLEN(d)
106 #if defined (POSIX) && !defined (__GNU_LIBRARY__)
107 /* Posix does not require that the d_ino field be present, and some
108 systems do not provide it. */
109 #define REAL_DIR_ENTRY(dp) 1
111 #define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
114 #if (defined (STDC_HEADERS) || defined (__GNU_LIBRARY__))
118 #else /* No standard headers. */
120 extern char *getenv ();
132 extern char *malloc (), *realloc ();
135 extern void qsort ();
136 extern void abort (), exit ();
138 #endif /* Standard headers. */
143 extern void bzero ();
146 extern void bcopy ();
149 #define memcpy(d, s, n) bcopy ((s), (d), (n))
150 #define strrchr rindex
151 /* memset is only used for zero here, but let's be paranoid. */
152 #define memset(s, better_be_zero, n) \
153 ((void) ((better_be_zero) == 0 ? (bzero((s), (n)), 0) : (abort(), 0)))
154 #endif /* Not ANSI_STRING. */
157 #define strcoll strcmp
161 #ifndef __GNU_LIBRARY__
171 /* These casts are the for sake of the broken Ultrix compiler,
172 which warns of illegal pointer combinations otherwise. */
174 return (char *) malloc (n);
175 return (char *) realloc (p, n);
177 #define realloc my_realloc
179 #endif /* __GNU_LIBRARY__ */
182 #if !defined(__alloca) && !defined(__GNU_LIBRARY__)
186 #define alloca(n) __builtin_alloca (n)
188 #if defined (sparc) || defined (HAVE_ALLOCA_H)
190 #else /* Not sparc or HAVE_ALLOCA_H. */
192 extern char *alloca ();
193 #endif /* Not _AIX. */
194 #endif /* sparc or HAVE_ALLOCA_H. */
197 #define __alloca alloca
201 #ifndef __GNU_LIBRARY__
203 #ifdef STAT_MACROS_BROKEN
207 #define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
213 #define size_t unsigned int
216 /* Some system header files erroneously define these.
217 We want our own definitions from <fnmatch.h> to take precedence. */
223 /* Some system header files erroneously define these.
224 We want our own definitions from <glob.h> to take precedence. */
235 static int glob_pattern_p __P ((const char *pattern, int quote));
236 static int glob_in_dir __P ((const char *pattern, const char *directory,
238 int (*errfunc) __P ((const char *, int)),
240 static int prefix_array __P ((const char *prefix, char **array, size_t n));
241 static int collated_compare __P ((const __ptr_t, const __ptr_t));
243 /* Do glob searching for PATTERN, placing results in PGLOB.
244 The bits defined above may be set in FLAGS.
245 If a directory cannot be opened or read and ERRFUNC is not nil,
246 it is called with the pathname that caused the error, and the
247 `errno' value from the failing call; if it returns non-zero
248 `glob' returns GLOB_ABEND; if it returns zero, the error is ignored.
249 If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
250 Otherwise, `glob' returns zero. */
252 glob (pattern, flags, errfunc, pglob)
255 int (*errfunc) __P ((const char *, int));
258 const char *filename;
264 if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0)
270 if (flags & GLOB_BRACE)
272 const char *begin = strchr (pattern, '{');
277 const char *p, *end, *next;
278 unsigned int depth = 0;
280 /* Find the end of the brace expression, by counting braces.
281 While we're at it, notice the first comma at top brace level. */
289 if (depth == 0 && next == NULL)
300 return glob (pattern, flags &~ GLOB_BRACE, errfunc, pglob);
304 restlen = strlen (end) + 1;
308 /* We have a brace expression. BEGIN points to the opening {,
309 NEXT points past the terminator of the first element, and END
310 points past the final }. We will accumulate result names from
311 recursive runs for each brace alternative in the buffer using
314 if (!(flags & GLOB_APPEND))
316 /* This call is to set a new vector, so clear out the
317 vector so we can append to it. */
319 pglob->gl_pathv = NULL;
321 firstc = pglob->gl_pathc;
323 /* In this loop P points to the beginning of the current element
324 and NEXT points past its terminator. */
328 /* Construct a whole name that is one of the brace
329 alternatives in a temporary buffer. */
331 size_t bufsz = (begin - pattern) + (next - 1 - p) + restlen;
335 char *onealt = malloc (bufsz);
338 if (!(flags & GLOB_APPEND))
343 memcpy (onealt, pattern, begin - pattern);
344 memcpy (&onealt[begin - pattern], p, next - 1 - p);
345 memcpy (&onealt[(begin - pattern) + (next - 1 - p)],
347 result = glob (onealt,
348 ((flags & ~(GLOB_NOCHECK|GLOB_NOMAGIC)) |
349 GLOB_APPEND), errfunc, pglob);
354 /* If we got an error, return it. */
355 if (result && result != GLOB_NOMATCH)
357 if (!(flags & GLOB_APPEND))
362 /* Advance past this alternative and process the next. */
371 /* Found the next alternative. Loop to glob it. */
381 /* End of the brace expression. Break out of the loop. */
387 if (pglob->gl_pathc == firstc &&
388 !(flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
393 /* Find the filename. */
394 filename = strrchr (pattern, '/');
395 if (filename == NULL)
399 dirname = (char *) "";
401 dirname = (char *) ".";
405 else if (filename == pattern)
408 dirname = (char *) "/";
414 dirlen = filename - pattern;
415 dirname = (char *) __alloca (dirlen + 1);
416 memcpy (dirname, pattern, dirlen);
417 dirname[dirlen] = '\0';
421 if (filename[0] == '\0' && dirlen > 1)
422 /* "pattern/". Expand "pattern", appending slashes. */
424 int val = glob (dirname, flags | GLOB_MARK, errfunc, pglob);
426 pglob->gl_flags = (pglob->gl_flags & ~GLOB_MARK) | (flags & GLOB_MARK);
430 if (!(flags & GLOB_APPEND))
433 pglob->gl_pathv = NULL;
436 oldcount = pglob->gl_pathc;
438 if ((flags & GLOB_TILDE) && dirname[0] == '~')
440 if (dirname[1] == '\0')
442 /* Look up home directory. */
443 dirname = getenv ("HOME");
445 if (dirname == NULL || dirname[0] == '\0')
448 if (dirname == NULL || dirname[0] == '\0')
450 extern char *getlogin __P ((void));
451 char *name = getlogin ();
454 struct passwd *p = getpwnam (name);
459 if (dirname == NULL || dirname[0] == '\0')
460 dirname = (char *) "~"; /* No luck. */
466 if (dirname == NULL || dirname[0] == '\0')
469 /* Look up specific user's home directory. */
470 struct passwd *p = getpwnam (dirname + 1);
477 if (glob_pattern_p (dirname, !(flags & GLOB_NOESCAPE)))
479 /* The directory name contains metacharacters, so we
480 have to glob for the directory, and then glob for
481 the pattern in each directory found. */
485 status = glob (dirname,
486 ((flags & (GLOB_ERR | GLOB_NOCHECK | GLOB_NOESCAPE)) |
492 /* We have successfully globbed the preceding directory name.
493 For each name we found, call glob_in_dir on it and FILENAME,
494 appending the results to PGLOB. */
495 for (i = 0; i < dirs.gl_pathc; ++i)
501 /* Make globbing interruptible in the bash shell. */
502 extern int interrupt_state;
513 oldcount = pglob->gl_pathc;
514 status = glob_in_dir (filename, dirs.gl_pathv[i],
515 (flags | GLOB_APPEND) & ~GLOB_NOCHECK,
517 if (status == GLOB_NOMATCH)
518 /* No matches in this directory. Try the next. */
528 /* Stick the directory on the front of each name. */
529 if (prefix_array (dirs.gl_pathv[i],
530 &pglob->gl_pathv[oldcount],
531 pglob->gl_pathc - oldcount))
539 flags |= GLOB_MAGCHAR;
541 if (pglob->gl_pathc == oldcount)
543 if (flags & GLOB_NOCHECK)
545 size_t len = strlen (pattern) + 1;
546 char *patcopy = (char *) malloc (len);
549 memcpy (patcopy, pattern, len);
552 = (char **) realloc (pglob->gl_pathv,
554 ((flags & GLOB_DOOFFS) ?
555 pglob->gl_offs : 0) +
558 if (pglob->gl_pathv == NULL)
564 if (flags & GLOB_DOOFFS)
565 while (pglob->gl_pathc < pglob->gl_offs)
566 pglob->gl_pathv[pglob->gl_pathc++] = NULL;
568 pglob->gl_pathv[pglob->gl_pathc++] = patcopy;
569 pglob->gl_pathv[pglob->gl_pathc] = NULL;
570 pglob->gl_flags = flags;
577 status = glob_in_dir (filename, dirname, flags, errfunc, pglob);
583 /* Stick the directory on the front of each name. */
584 if (prefix_array (dirname,
585 &pglob->gl_pathv[oldcount],
586 pglob->gl_pathc - oldcount))
594 if (flags & GLOB_MARK)
596 /* Append slashes to directory names. */
599 for (i = oldcount; i < pglob->gl_pathc; ++i)
600 if (((flags & GLOB_ALTDIRFUNC) ?
601 (*pglob->gl_stat) (pglob->gl_pathv[i], &st) :
602 __stat (pglob->gl_pathv[i], &st)) == 0 &&
603 S_ISDIR (st.st_mode))
605 size_t len = strlen (pglob->gl_pathv[i]) + 2;
606 char *new = realloc (pglob->gl_pathv[i], len);
612 strcpy (&new[len - 2], "/");
613 pglob->gl_pathv[i] = new;
617 if (!(flags & GLOB_NOSORT))
618 /* Sort the vector. */
619 qsort ((__ptr_t) &pglob->gl_pathv[oldcount],
620 pglob->gl_pathc - oldcount,
621 sizeof (char *), collated_compare);
627 /* Free storage allocated in PGLOB by a previous `glob' call. */
630 register glob_t *pglob;
632 if (pglob->gl_pathv != NULL)
635 for (i = 0; i < pglob->gl_pathc; ++i)
636 if (pglob->gl_pathv[i] != NULL)
637 free ((__ptr_t) pglob->gl_pathv[i]);
638 free ((__ptr_t) pglob->gl_pathv);
643 /* Do a collated comparison of A and B. */
645 collated_compare (a, b)
649 const char *const s1 = *(const char *const * const) a;
650 const char *const s2 = *(const char *const * const) b;
658 return strcoll (s1, s2);
662 /* Prepend DIRNAME to each of N members of ARRAY, replacing ARRAY's
663 elements in place. Return nonzero if out of memory, zero if successful.
664 A slash is inserted between DIRNAME and each elt of ARRAY,
665 unless DIRNAME is just "/". Each old element of ARRAY is freed. */
667 prefix_array (dirname, array, n)
673 size_t dirlen = strlen (dirname);
675 if (dirlen == 1 && dirname[0] == '/')
676 /* DIRNAME is just "/", so normal prepending would get us "//foo".
677 We want "/foo" instead, so don't prepend any chars from DIRNAME. */
680 for (i = 0; i < n; ++i)
682 size_t eltlen = strlen (array[i]) + 1;
683 char *new = (char *) malloc (dirlen + 1 + eltlen);
687 free ((__ptr_t) array[--i]);
691 memcpy (new, dirname, dirlen);
693 memcpy (&new[dirlen + 1], array[i], eltlen);
694 free ((__ptr_t) array[i]);
702 /* Return nonzero if PATTERN contains any metacharacters.
703 Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
705 glob_pattern_p (pattern, quote)
709 register const char *p;
712 for (p = pattern; *p != '\0'; ++p)
720 if (quote && p[1] != '\0')
738 /* Like `glob', but PATTERN is a final pathname component,
739 and matches are searched for in DIRECTORY.
740 The GLOB_NOSORT bit in FLAGS is ignored. No sorting is ever done.
741 The GLOB_APPEND flag is assumed to be set (always appends). */
743 glob_in_dir (pattern, directory, flags, errfunc, pglob)
745 const char *directory;
747 int (*errfunc) __P ((const char *, int));
754 struct globlink *next;
757 struct globlink *names = NULL;
760 if (!glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE)))
763 flags |= GLOB_NOCHECK;
767 flags |= GLOB_MAGCHAR;
769 stream = ((flags & GLOB_ALTDIRFUNC) ?
770 (*pglob->gl_opendir) (directory) :
771 (__ptr_t) opendir (directory));
774 if ((errfunc != NULL && (*errfunc) (directory, errno)) ||
783 struct dirent *d = ((flags & GLOB_ALTDIRFUNC) ?
784 (*pglob->gl_readdir) (stream) :
785 readdir ((DIR *) stream));
788 if (! REAL_DIR_ENTRY (d))
793 if (fnmatch (pattern, name,
794 (!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0) |
795 ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)
802 = (struct globlink *) __alloca (sizeof (struct globlink));
805 = (char *) malloc (len + 1);
806 if (new->name == NULL)
808 memcpy ((__ptr_t) new->name, name, len);
809 new->name[len] = '\0';
817 if (nfound == 0 && (flags & GLOB_NOMAGIC) &&
818 ! glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE)))
819 flags |= GLOB_NOCHECK;
821 if (nfound == 0 && (flags & GLOB_NOCHECK))
823 size_t len = strlen (pattern);
825 names = (struct globlink *) __alloca (sizeof (struct globlink));
827 names->name = (char *) malloc (len + 1);
828 if (names->name == NULL)
830 memcpy (names->name, pattern, len);
831 names->name[len] = '\0';
835 = (char **) realloc (pglob->gl_pathv,
837 ((flags & GLOB_DOOFFS) ? pglob->gl_offs : 0) +
840 if (pglob->gl_pathv == NULL)
843 if (flags & GLOB_DOOFFS)
844 while (pglob->gl_pathc < pglob->gl_offs)
845 pglob->gl_pathv[pglob->gl_pathc++] = NULL;
847 for (; names != NULL; names = names->next)
848 pglob->gl_pathv[pglob->gl_pathc++] = names->name;
849 pglob->gl_pathv[pglob->gl_pathc] = NULL;
851 pglob->gl_flags = flags;
856 if (flags & GLOB_ALTDIRFUNC)
857 (*pglob->gl_closedir) (stream);
859 closedir ((DIR *) stream);
862 return nfound == 0 ? GLOB_NOMATCH : 0;
867 if (flags & GLOB_ALTDIRFUNC)
868 (*pglob->gl_closedir) (stream);
870 closedir ((DIR *) stream);
873 while (names != NULL)
875 if (names->name != NULL)
876 free ((__ptr_t) names->name);
882 #endif /* Not ELIDE_CODE. */