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
70 #if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS)
79 #if defined (HAVE_DIRENT_H) || defined (__GNU_LIBRARY__)
81 # define NAMLEN(dirent) strlen((dirent)->d_name)
83 # define dirent direct
84 # define NAMLEN(dirent) (dirent)->d_namlen
85 # ifdef HAVE_SYS_NDIR_H
86 # include <sys/ndir.h>
88 # ifdef HAVE_SYS_DIR_H
97 /* In GNU systems, <dirent.h> defines this macro for us. */
100 #define NAMLEN(d) _D_NAMLEN(d)
104 #if defined (POSIX) && !defined (__GNU_LIBRARY__)
105 /* Posix does not require that the d_ino field be present, and some
106 systems do not provide it. */
107 #define REAL_DIR_ENTRY(dp) 1
109 #define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
112 #if (defined (STDC_HEADERS) || defined (__GNU_LIBRARY__))
116 #else /* No standard headers. */
118 extern char *getenv ();
130 extern char *malloc (), *realloc ();
133 extern void qsort ();
134 extern void abort (), exit ();
136 #endif /* Standard headers. */
141 extern void bzero ();
144 extern void bcopy ();
147 #define memcpy(d, s, n) bcopy ((s), (d), (n))
148 #define strrchr rindex
149 /* memset is only used for zero here, but let's be paranoid. */
150 #define memset(s, better_be_zero, n) \
151 ((void) ((better_be_zero) == 0 ? (bzero((s), (n)), 0) : (abort(), 0)))
152 #endif /* Not ANSI_STRING. */
155 #define strcoll strcmp
159 #ifndef __GNU_LIBRARY__
168 /* These casts are the for sake of the broken Ultrix compiler,
169 which warns of illegal pointer combinations otherwise. */
171 return (char *) malloc (n
);
172 return (char *) realloc (p
, n
);
174 #define realloc my_realloc
178 #if !defined(__alloca) && !defined(__GNU_LIBRARY__)
182 #define alloca(n) __builtin_alloca (n)
184 #if defined (sparc) || defined (HAVE_ALLOCA_H)
186 #else /* Not sparc or HAVE_ALLOCA_H. */
188 extern char *alloca ();
189 #endif /* Not _AIX. */
190 #endif /* sparc or HAVE_ALLOCA_H. */
193 #define __alloca alloca
197 #ifndef __GNU_LIBRARY__
199 #ifdef STAT_MACROS_BROKEN
203 #define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
209 #define size_t unsigned int
212 /* Some system header files erroneously define these.
213 We want our own definitions from <fnmatch.h> to take precedence. */
219 /* Some system header files erroneously define these.
220 We want our own definitions from <glob.h> to take precedence. */
231 static int glob_pattern_p
__P ((const char *pattern
, int quote
));
232 static int glob_in_dir
__P ((const char *pattern
, const char *directory
,
234 int (*errfunc
) __P ((const char *, int)),
236 static int prefix_array
__P ((const char *prefix
, char **array
, size_t n
));
237 static int collated_compare
__P ((const __ptr_t
, const __ptr_t
));
239 /* Do glob searching for PATTERN, placing results in PGLOB.
240 The bits defined above may be set in FLAGS.
241 If a directory cannot be opened or read and ERRFUNC is not nil,
242 it is called with the pathname that caused the error, and the
243 `errno' value from the failing call; if it returns non-zero
244 `glob' returns GLOB_ABEND; if it returns zero, the error is ignored.
245 If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
246 Otherwise, `glob' returns zero. */
248 glob (pattern
, flags
, errfunc
, pglob
)
251 int (*errfunc
) __P ((const char *, int));
254 const char *filename
;
260 if (pattern
== NULL
|| pglob
== NULL
|| (flags
& ~__GLOB_FLAGS
) != 0)
266 if (flags
& GLOB_BRACE
)
268 const char *begin
= strchr (pattern
, '{');
273 const char *p
, *end
, *next
;
274 unsigned int depth
= 0;
276 /* Find the end of the brace expression, by counting braces.
277 While we're at it, notice the first comma at top brace level. */
285 if (depth
== 0 && next
== NULL
)
296 return glob (pattern
, flags
&~ GLOB_BRACE
, errfunc
, pglob
);
300 restlen
= strlen (end
) + 1;
304 /* We have a brace expression. BEGIN points to the opening {,
305 NEXT points past the terminator of the first element, and END
306 points past the final }. We will accumulate result names from
307 recursive runs for each brace alternative in the buffer using
310 if (!(flags
& GLOB_APPEND
))
312 /* This call is to set a new vector, so clear out the
313 vector so we can append to it. */
315 pglob
->gl_pathv
= NULL
;
317 firstc
= pglob
->gl_pathc
;
319 /* In this loop P points to the beginning of the current element
320 and NEXT points past its terminator. */
324 /* Construct a whole name that is one of the brace
325 alternatives in a temporary buffer. */
327 size_t bufsz
= (begin
- pattern
) + (next
- 1 - p
) + restlen
;
331 char *onealt
= malloc (bufsz
);
334 if (!(flags
& GLOB_APPEND
))
339 memcpy (onealt
, pattern
, begin
- pattern
);
340 memcpy (&onealt
[begin
- pattern
], p
, next
- 1 - p
);
341 memcpy (&onealt
[(begin
- pattern
) + (next
- 1 - p
)],
343 result
= glob (onealt
,
344 ((flags
& ~(GLOB_NOCHECK
|GLOB_NOMAGIC
)) |
345 GLOB_APPEND
), errfunc
, pglob
);
350 /* If we got an error, return it. */
351 if (result
&& result
!= GLOB_NOMATCH
)
353 if (!(flags
& GLOB_APPEND
))
358 /* Advance past this alternative and process the next. */
367 /* Found the next alternative. Loop to glob it. */
377 /* End of the brace expression. Break out of the loop. */
383 if (pglob
->gl_pathc
== firstc
&&
384 !(flags
& (GLOB_NOCHECK
|GLOB_NOMAGIC
)))
389 /* Find the filename. */
390 filename
= strrchr (pattern
, '/');
391 if (filename
== NULL
)
394 dirname
= (char *) ".";
397 else if (filename
== pattern
)
400 dirname
= (char *) "/";
406 dirlen
= filename
- pattern
;
407 dirname
= (char *) __alloca (dirlen
+ 1);
408 memcpy (dirname
, pattern
, dirlen
);
409 dirname
[dirlen
] = '\0';
413 if (filename
[0] == '\0' && dirlen
> 1)
414 /* "pattern/". Expand "pattern", appending slashes. */
416 int val
= glob (dirname
, flags
| GLOB_MARK
, errfunc
, pglob
);
418 pglob
->gl_flags
= (pglob
->gl_flags
& ~GLOB_MARK
) | (flags
& GLOB_MARK
);
422 if (!(flags
& GLOB_APPEND
))
425 pglob
->gl_pathv
= NULL
;
428 oldcount
= pglob
->gl_pathc
;
430 if ((flags
& GLOB_TILDE
) && dirname
[0] == '~')
432 if (dirname
[1] == '\0')
434 /* Look up home directory. */
435 dirname
= getenv ("HOME");
436 if (dirname
== NULL
|| dirname
[0] == '\0')
438 extern char *getlogin
__P ((void));
439 char *name
= getlogin ();
442 struct passwd
*p
= getpwnam (name
);
447 if (dirname
== NULL
|| dirname
[0] == '\0')
448 dirname
= (char *) "~"; /* No luck. */
452 /* Look up specific user's home directory. */
453 struct passwd
*p
= getpwnam (dirname
+ 1);
459 if (glob_pattern_p (dirname
, !(flags
& GLOB_NOESCAPE
)))
461 /* The directory name contains metacharacters, so we
462 have to glob for the directory, and then glob for
463 the pattern in each directory found. */
467 status
= glob (dirname
,
468 ((flags
& (GLOB_ERR
| GLOB_NOCHECK
| GLOB_NOESCAPE
)) |
474 /* We have successfully globbed the preceding directory name.
475 For each name we found, call glob_in_dir on it and FILENAME,
476 appending the results to PGLOB. */
477 for (i
= 0; i
< dirs
.gl_pathc
; ++i
)
483 /* Make globbing interruptible in the bash shell. */
484 extern int interrupt_state
;
495 oldcount
= pglob
->gl_pathc
;
496 status
= glob_in_dir (filename
, dirs
.gl_pathv
[i
],
497 (flags
| GLOB_APPEND
) & ~GLOB_NOCHECK
,
499 if (status
== GLOB_NOMATCH
)
500 /* No matches in this directory. Try the next. */
510 /* Stick the directory on the front of each name. */
511 if (prefix_array (dirs
.gl_pathv
[i
],
512 &pglob
->gl_pathv
[oldcount
],
513 pglob
->gl_pathc
- oldcount
))
521 flags
|= GLOB_MAGCHAR
;
523 if (pglob
->gl_pathc
== oldcount
)
525 if (flags
& GLOB_NOCHECK
)
527 size_t len
= strlen (pattern
) + 1;
528 char *patcopy
= (char *) malloc (len
);
531 memcpy (patcopy
, pattern
, len
);
534 = (char **) realloc (pglob
->gl_pathv
,
536 ((flags
& GLOB_DOOFFS
) ?
537 pglob
->gl_offs
: 0) +
540 if (pglob
->gl_pathv
== NULL
)
546 if (flags
& GLOB_DOOFFS
)
547 while (pglob
->gl_pathc
< pglob
->gl_offs
)
548 pglob
->gl_pathv
[pglob
->gl_pathc
++] = NULL
;
550 pglob
->gl_pathv
[pglob
->gl_pathc
++] = patcopy
;
551 pglob
->gl_pathv
[pglob
->gl_pathc
] = NULL
;
552 pglob
->gl_flags
= flags
;
559 status
= glob_in_dir (filename
, dirname
, flags
, errfunc
, pglob
);
565 /* Stick the directory on the front of each name. */
566 if (prefix_array (dirname
,
567 &pglob
->gl_pathv
[oldcount
],
568 pglob
->gl_pathc
- oldcount
))
576 if (flags
& GLOB_MARK
)
578 /* Append slashes to directory names. */
581 for (i
= oldcount
; i
< pglob
->gl_pathc
; ++i
)
582 if (((flags
& GLOB_ALTDIRFUNC
) ?
583 (*pglob
->gl_stat
) (pglob
->gl_pathv
[i
], &st
) :
584 __stat (pglob
->gl_pathv
[i
], &st
)) == 0 &&
585 S_ISDIR (st
.st_mode
))
587 size_t len
= strlen (pglob
->gl_pathv
[i
]) + 2;
588 char *new = realloc (pglob
->gl_pathv
[i
], len
);
594 strcpy (&new[len
- 2], "/");
595 pglob
->gl_pathv
[i
] = new;
599 if (!(flags
& GLOB_NOSORT
))
600 /* Sort the vector. */
601 qsort ((__ptr_t
) &pglob
->gl_pathv
[oldcount
],
602 pglob
->gl_pathc
- oldcount
,
603 sizeof (char *), collated_compare
);
609 /* Free storage allocated in PGLOB by a previous `glob' call. */
612 register glob_t
*pglob
;
614 if (pglob
->gl_pathv
!= NULL
)
617 for (i
= 0; i
< pglob
->gl_pathc
; ++i
)
618 if (pglob
->gl_pathv
[i
] != NULL
)
619 free ((__ptr_t
) pglob
->gl_pathv
[i
]);
620 free ((__ptr_t
) pglob
->gl_pathv
);
625 /* Do a collated comparison of A and B. */
627 collated_compare (a
, b
)
631 const char *const s1
= *(const char *const * const) a
;
632 const char *const s2
= *(const char *const * const) b
;
640 return strcoll (s1
, s2
);
644 /* Prepend DIRNAME to each of N members of ARRAY, replacing ARRAY's
645 elements in place. Return nonzero if out of memory, zero if successful.
646 A slash is inserted between DIRNAME and each elt of ARRAY,
647 unless DIRNAME is just "/". Each old element of ARRAY is freed. */
649 prefix_array (dirname
, array
, n
)
655 size_t dirlen
= strlen (dirname
);
657 if (dirlen
== 1 && dirname
[0] == '/')
658 /* DIRNAME is just "/", so normal prepending would get us "//foo".
659 We want "/foo" instead, so don't prepend any chars from DIRNAME. */
662 for (i
= 0; i
< n
; ++i
)
664 size_t eltlen
= strlen (array
[i
]) + 1;
665 char *new = (char *) malloc (dirlen
+ 1 + eltlen
);
669 free ((__ptr_t
) array
[--i
]);
673 memcpy (new, dirname
, dirlen
);
675 memcpy (&new[dirlen
+ 1], array
[i
], eltlen
);
676 free ((__ptr_t
) array
[i
]);
684 /* Return nonzero if PATTERN contains any metacharacters.
685 Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
687 glob_pattern_p (pattern
, quote
)
691 register const char *p
;
694 for (p
= pattern
; *p
!= '\0'; ++p
)
702 if (quote
&& p
[1] != '\0')
720 /* Like `glob', but PATTERN is a final pathname component,
721 and matches are searched for in DIRECTORY.
722 The GLOB_NOSORT bit in FLAGS is ignored. No sorting is ever done.
723 The GLOB_APPEND flag is assumed to be set (always appends). */
725 glob_in_dir (pattern
, directory
, flags
, errfunc
, pglob
)
727 const char *directory
;
729 int (*errfunc
) __P ((const char *, int));
736 struct globlink
*next
;
739 struct globlink
*names
= NULL
;
742 if (!glob_pattern_p (pattern
, !(flags
& GLOB_NOESCAPE
)))
745 flags
|= GLOB_NOCHECK
;
749 flags
|= GLOB_MAGCHAR
;
751 stream
= ((flags
& GLOB_ALTDIRFUNC
) ?
752 (*pglob
->gl_opendir
) (directory
) :
753 (__ptr_t
) opendir (directory
));
756 if ((errfunc
!= NULL
&& (*errfunc
) (directory
, errno
)) ||
765 struct dirent
*d
= ((flags
& GLOB_ALTDIRFUNC
) ?
766 (*pglob
->gl_readdir
) (stream
) :
767 readdir ((DIR *) stream
));
770 if (! REAL_DIR_ENTRY (d
))
775 if (fnmatch (pattern
, name
,
776 (!(flags
& GLOB_PERIOD
) ? FNM_PERIOD
: 0) |
777 ((flags
& GLOB_NOESCAPE
) ? FNM_NOESCAPE
: 0)) == 0)
780 = (struct globlink
*) __alloca (sizeof (struct globlink
));
783 = (char *) malloc (len
+ 1);
784 if (new->name
== NULL
)
786 memcpy ((__ptr_t
) new->name
, name
, len
);
787 new->name
[len
] = '\0';
795 if (nfound
== 0 && (flags
& GLOB_NOMAGIC
) &&
796 ! glob_pattern_p (pattern
, !(flags
& GLOB_NOESCAPE
)))
797 flags
|= GLOB_NOCHECK
;
799 if (nfound
== 0 && (flags
& GLOB_NOCHECK
))
801 size_t len
= strlen (pattern
);
803 names
= (struct globlink
*) __alloca (sizeof (struct globlink
));
805 names
->name
= (char *) malloc (len
+ 1);
806 if (names
->name
== NULL
)
808 memcpy (names
->name
, pattern
, len
);
809 names
->name
[len
] = '\0';
813 = (char **) realloc (pglob
->gl_pathv
,
815 ((flags
& GLOB_DOOFFS
) ? pglob
->gl_offs
: 0) +
818 if (pglob
->gl_pathv
== NULL
)
821 if (flags
& GLOB_DOOFFS
)
822 while (pglob
->gl_pathc
< pglob
->gl_offs
)
823 pglob
->gl_pathv
[pglob
->gl_pathc
++] = NULL
;
825 for (; names
!= NULL
; names
= names
->next
)
826 pglob
->gl_pathv
[pglob
->gl_pathc
++] = names
->name
;
827 pglob
->gl_pathv
[pglob
->gl_pathc
] = NULL
;
829 pglob
->gl_flags
= flags
;
834 if (flags
& GLOB_ALTDIRFUNC
)
835 (*pglob
->gl_closedir
) (stream
);
837 closedir ((DIR *) stream
);
840 return nfound
== 0 ? GLOB_NOMATCH
: 0;
845 if (flags
& GLOB_ALTDIRFUNC
)
846 (*pglob
->gl_closedir
) (stream
);
848 closedir ((DIR *) stream
);
851 while (names
!= NULL
)
853 if (names
->name
!= NULL
)
854 free ((__ptr_t
) names
->name
);
860 #endif /* Not ELIDE_CODE. */