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. */