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) && !defined(WIN32)
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 (WIN32)) && !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__
178 /* These casts are the for sake of the broken Ultrix compiler,
179 which warns of illegal pointer combinations otherwise. */
181 return (char *) malloc (n);
182 return (char *) realloc (p, n);
184 #define realloc my_realloc
186 #endif /* __GNU_LIBRARY__ */
189 #if !defined(__alloca) && !defined(__GNU_LIBRARY__)
193 #define alloca(n) __builtin_alloca (n)
197 #else /* Not HAVE_ALLOCA_H. */
202 extern char *alloca ();
204 #endif /* Not _AIX. */
205 #endif /* sparc or HAVE_ALLOCA_H. */
208 #define __alloca alloca
212 #ifndef __GNU_LIBRARY__
214 #ifdef STAT_MACROS_BROKEN
218 #define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
224 #define size_t unsigned int
227 /* Some system header files erroneously define these.
228 We want our own definitions from <fnmatch.h> to take precedence. */
234 /* Some system header files erroneously define these.
235 We want our own definitions from <glob.h> to take precedence. */
246 static int glob_pattern_p __P ((const char *pattern, int quote));
247 static int glob_in_dir __P ((const char *pattern, const char *directory,
249 int (*errfunc) __P ((const char *, int)),
251 static int prefix_array __P ((const char *prefix, char **array, size_t n));
252 static int collated_compare __P ((const __ptr_t, const __ptr_t));
254 /* Do glob searching for PATTERN, placing results in PGLOB.
255 The bits defined above may be set in FLAGS.
256 If a directory cannot be opened or read and ERRFUNC is not nil,
257 it is called with the pathname that caused the error, and the
258 `errno' value from the failing call; if it returns non-zero
259 `glob' returns GLOB_ABEND; if it returns zero, the error is ignored.
260 If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
261 Otherwise, `glob' returns zero. */
263 glob (pattern, flags, errfunc, pglob)
266 int (*errfunc) __P ((const char *, int));
269 const char *filename;
275 if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0)
281 if (flags & GLOB_BRACE)
283 const char *begin = strchr (pattern, '{');
288 const char *p, *end, *next;
289 unsigned int depth = 0;
291 /* Find the end of the brace expression, by counting braces.
292 While we're at it, notice the first comma at top brace level. */
300 if (depth == 0 && next == NULL)
311 return glob (pattern, flags &~ GLOB_BRACE, errfunc, pglob);
315 restlen = strlen (end) + 1;
319 /* We have a brace expression. BEGIN points to the opening {,
320 NEXT points past the terminator of the first element, and END
321 points past the final }. We will accumulate result names from
322 recursive runs for each brace alternative in the buffer using
325 if (!(flags & GLOB_APPEND))
327 /* This call is to set a new vector, so clear out the
328 vector so we can append to it. */
330 pglob->gl_pathv = NULL;
332 firstc = pglob->gl_pathc;
334 /* In this loop P points to the beginning of the current element
335 and NEXT points past its terminator. */
339 /* Construct a whole name that is one of the brace
340 alternatives in a temporary buffer. */
342 size_t bufsz = (begin - pattern) + (next - 1 - p) + restlen;
346 char *onealt = malloc (bufsz);
349 if (!(flags & GLOB_APPEND))
354 memcpy (onealt, pattern, begin - pattern);
355 memcpy (&onealt[begin - pattern], p, next - 1 - p);
356 memcpy (&onealt[(begin - pattern) + (next - 1 - p)],
358 result = glob (onealt,
359 ((flags & ~(GLOB_NOCHECK|GLOB_NOMAGIC)) |
360 GLOB_APPEND), errfunc, pglob);
365 /* If we got an error, return it. */
366 if (result && result != GLOB_NOMATCH)
368 if (!(flags & GLOB_APPEND))
373 /* Advance past this alternative and process the next. */
382 /* Found the next alternative. Loop to glob it. */
392 /* End of the brace expression. Break out of the loop. */
398 if (pglob->gl_pathc == firstc &&
399 !(flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
404 /* Find the filename. */
405 filename = strrchr (pattern, '/');
406 if (filename == NULL)
410 dirname = (char *) "";
412 dirname = (char *) ".";
416 else if (filename == pattern)
419 dirname = (char *) "/";
425 dirlen = filename - pattern;
426 dirname = (char *) __alloca (dirlen + 1);
427 memcpy (dirname, pattern, dirlen);
428 dirname[dirlen] = '\0';
432 if (filename[0] == '\0' && dirlen > 1)
433 /* "pattern/". Expand "pattern", appending slashes. */
435 int val = glob (dirname, flags | GLOB_MARK, errfunc, pglob);
437 pglob->gl_flags = (pglob->gl_flags & ~GLOB_MARK) | (flags & GLOB_MARK);
441 if (!(flags & GLOB_APPEND))
444 pglob->gl_pathv = NULL;
447 oldcount = pglob->gl_pathc;
450 if ((flags & GLOB_TILDE) && dirname[0] == '~')
452 if (dirname[1] == '\0')
454 /* Look up home directory. */
455 dirname = getenv ("HOME");
457 if (dirname == NULL || dirname[0] == '\0')
461 if (dirname == NULL || dirname[0] == '\0')
462 dirname = "c:/users/default"; /* poor default */
464 if (dirname == NULL || dirname[0] == '\0')
466 extern char *getlogin __P ((void));
467 char *name = getlogin ();
470 struct passwd *p = getpwnam (name);
475 if (dirname == NULL || dirname[0] == '\0')
476 dirname = (char *) "~"; /* No luck. */
483 if (dirname == NULL || dirname[0] == '\0')
487 if (dirname == NULL || dirname[0] == '\0')
488 dirname = "c:/users/default"; /* poor default */
490 /* Look up specific user's home directory. */
491 struct passwd *p = getpwnam (dirname + 1);
498 #endif /* Not VMS. */
500 if (glob_pattern_p (dirname, !(flags & GLOB_NOESCAPE)))
502 /* The directory name contains metacharacters, so we
503 have to glob for the directory, and then glob for
504 the pattern in each directory found. */
508 status = glob (dirname,
509 ((flags & (GLOB_ERR | GLOB_NOCHECK | GLOB_NOESCAPE)) |
515 /* We have successfully globbed the preceding directory name.
516 For each name we found, call glob_in_dir on it and FILENAME,
517 appending the results to PGLOB. */
518 for (i = 0; i < dirs.gl_pathc; ++i)
524 /* Make globbing interruptible in the bash shell. */
525 extern int interrupt_state;
536 oldcount = pglob->gl_pathc;
537 status = glob_in_dir (filename, dirs.gl_pathv[i],
538 (flags | GLOB_APPEND) & ~GLOB_NOCHECK,
540 if (status == GLOB_NOMATCH)
541 /* No matches in this directory. Try the next. */
551 /* Stick the directory on the front of each name. */
552 if (prefix_array (dirs.gl_pathv[i],
553 &pglob->gl_pathv[oldcount],
554 pglob->gl_pathc - oldcount))
562 flags |= GLOB_MAGCHAR;
564 if (pglob->gl_pathc == oldcount)
566 if (flags & GLOB_NOCHECK)
568 size_t len = strlen (pattern) + 1;
569 char *patcopy = (char *) malloc (len);
572 memcpy (patcopy, pattern, len);
575 = (char **) realloc (pglob->gl_pathv,
577 ((flags & GLOB_DOOFFS) ?
578 pglob->gl_offs : 0) +
581 if (pglob->gl_pathv == NULL)
587 if (flags & GLOB_DOOFFS)
588 while (pglob->gl_pathc < pglob->gl_offs)
589 pglob->gl_pathv[pglob->gl_pathc++] = NULL;
591 pglob->gl_pathv[pglob->gl_pathc++] = patcopy;
592 pglob->gl_pathv[pglob->gl_pathc] = NULL;
593 pglob->gl_flags = flags;
600 status = glob_in_dir (filename, dirname, flags, errfunc, pglob);
606 /* Stick the directory on the front of each name. */
607 if (prefix_array (dirname,
608 &pglob->gl_pathv[oldcount],
609 pglob->gl_pathc - oldcount))
617 if (flags & GLOB_MARK)
619 /* Append slashes to directory names. */
622 for (i = oldcount; i < pglob->gl_pathc; ++i)
623 if (((flags & GLOB_ALTDIRFUNC) ?
624 (*pglob->gl_stat) (pglob->gl_pathv[i], &st) :
625 __stat (pglob->gl_pathv[i], &st)) == 0 &&
626 S_ISDIR (st.st_mode))
628 size_t len = strlen (pglob->gl_pathv[i]) + 2;
629 char *new = realloc (pglob->gl_pathv[i], len);
635 strcpy (&new[len - 2], "/");
636 pglob->gl_pathv[i] = new;
640 if (!(flags & GLOB_NOSORT))
641 /* Sort the vector. */
642 qsort ((__ptr_t) &pglob->gl_pathv[oldcount],
643 pglob->gl_pathc - oldcount,
644 sizeof (char *), collated_compare);
650 /* Free storage allocated in PGLOB by a previous `glob' call. */
653 register glob_t *pglob;
655 if (pglob->gl_pathv != NULL)
658 for (i = 0; i < pglob->gl_pathc; ++i)
659 if (pglob->gl_pathv[i] != NULL)
660 free ((__ptr_t) pglob->gl_pathv[i]);
661 free ((__ptr_t) pglob->gl_pathv);
666 /* Do a collated comparison of A and B. */
668 collated_compare (a, b)
672 const char *const s1 = *(const char *const * const) a;
673 const char *const s2 = *(const char *const * const) b;
681 return strcoll (s1, s2);
685 /* Prepend DIRNAME to each of N members of ARRAY, replacing ARRAY's
686 elements in place. Return nonzero if out of memory, zero if successful.
687 A slash is inserted between DIRNAME and each elt of ARRAY,
688 unless DIRNAME is just "/". Each old element of ARRAY is freed. */
690 prefix_array (dirname, array, n)
696 size_t dirlen = strlen (dirname);
698 if (dirlen == 1 && dirname[0] == '/')
699 /* DIRNAME is just "/", so normal prepending would get us "//foo".
700 We want "/foo" instead, so don't prepend any chars from DIRNAME. */
703 for (i = 0; i < n; ++i)
705 size_t eltlen = strlen (array[i]) + 1;
706 char *new = (char *) malloc (dirlen + 1 + eltlen);
710 free ((__ptr_t) array[--i]);
714 memcpy (new, dirname, dirlen);
716 memcpy (&new[dirlen + 1], array[i], eltlen);
717 free ((__ptr_t) array[i]);
725 /* Return nonzero if PATTERN contains any metacharacters.
726 Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
728 glob_pattern_p (pattern, quote)
732 register const char *p;
735 for (p = pattern; *p != '\0'; ++p)
743 if (quote && p[1] != '\0')
761 /* Like `glob', but PATTERN is a final pathname component,
762 and matches are searched for in DIRECTORY.
763 The GLOB_NOSORT bit in FLAGS is ignored. No sorting is ever done.
764 The GLOB_APPEND flag is assumed to be set (always appends). */
766 glob_in_dir (pattern, directory, flags, errfunc, pglob)
768 const char *directory;
770 int (*errfunc) __P ((const char *, int));
777 struct globlink *next;
780 struct globlink *names = NULL;
783 if (!glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE)))
786 flags |= GLOB_NOCHECK;
790 flags |= GLOB_MAGCHAR;
792 stream = ((flags & GLOB_ALTDIRFUNC) ?
793 (*pglob->gl_opendir) (directory) :
794 (__ptr_t) opendir (directory));
797 if ((errfunc != NULL && (*errfunc) (directory, errno)) ||
806 struct dirent *d = ((flags & GLOB_ALTDIRFUNC) ?
807 (*pglob->gl_readdir) (stream) :
808 readdir ((DIR *) stream));
811 if (! REAL_DIR_ENTRY (d))
816 if (fnmatch (pattern, name,
817 (!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0) |
818 ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)
825 = (struct globlink *) __alloca (sizeof (struct globlink));
828 = (char *) malloc (len + 1);
829 if (new->name == NULL)
831 memcpy ((__ptr_t) new->name, name, len);
832 new->name[len] = '\0';
840 if (nfound == 0 && (flags & GLOB_NOMAGIC) &&
841 ! glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE)))
842 flags |= GLOB_NOCHECK;
844 if (nfound == 0 && (flags & GLOB_NOCHECK))
846 size_t len = strlen (pattern);
848 names = (struct globlink *) __alloca (sizeof (struct globlink));
850 names->name = (char *) malloc (len + 1);
851 if (names->name == NULL)
853 memcpy (names->name, pattern, len);
854 names->name[len] = '\0';
858 = (char **) realloc (pglob->gl_pathv,
860 ((flags & GLOB_DOOFFS) ? pglob->gl_offs : 0) +
863 if (pglob->gl_pathv == NULL)
866 if (flags & GLOB_DOOFFS)
867 while (pglob->gl_pathc < pglob->gl_offs)
868 pglob->gl_pathv[pglob->gl_pathc++] = NULL;
870 for (; names != NULL; names = names->next)
871 pglob->gl_pathv[pglob->gl_pathc++] = names->name;
872 pglob->gl_pathv[pglob->gl_pathc] = NULL;
874 pglob->gl_flags = flags;
879 if (flags & GLOB_ALTDIRFUNC)
880 (*pglob->gl_closedir) (stream);
882 closedir ((DIR *) stream);
885 return nfound == 0 ? GLOB_NOMATCH : 0;
890 if (flags & GLOB_ALTDIRFUNC)
891 (*pglob->gl_closedir) (stream);
893 closedir ((DIR *) stream);
896 while (names != NULL)
898 if (names->name != NULL)
899 free ((__ptr_t) names->name);
905 #endif /* Not ELIDE_CODE. */