1 /* Copyright (C) 1991-2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010
2 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
27 #include <sys/types.h>
31 /* Outcomment the following line for production quality code. */
32 /* #define NDEBUG 1 */
35 #include <stdio.h> /* Needed on stupid SunOS for assert. */
37 #if !defined _LIBC || !defined GLOB_ONLY_P
38 #if defined HAVE_UNISTD_H || defined _LIBC
41 # ifdef _POSIX_VERSION
51 # define __set_errno(val) errno = (val)
54 #if defined HAVE_DIRENT_H || defined __GNU_LIBRARY__
56 # define NAMLEN(dirent) strlen((dirent)->d_name)
58 # define dirent direct
59 # define NAMLEN(dirent) (dirent)->d_namlen
60 # ifdef HAVE_SYS_NDIR_H
61 # include <sys/ndir.h>
63 # ifdef HAVE_SYS_DIR_H
71 # endif /* HAVE_VMSDIR_H */
75 /* In GNU systems, <dirent.h> defines this macro for us. */
78 # define NAMLEN(d) _D_NAMLEN(d)
81 /* When used in the GNU libc the symbol _DIRENT_HAVE_D_TYPE is available
82 if the `d_type' member for `struct dirent' is available.
83 HAVE_STRUCT_DIRENT_D_TYPE plays the same role in GNULIB. */
84 #if defined _DIRENT_HAVE_D_TYPE || defined HAVE_STRUCT_DIRENT_D_TYPE
85 /* True if the directory entry D must be of type T. */
86 # define DIRENT_MUST_BE(d, t) ((d)->d_type == (t))
88 /* True if the directory entry D might be a symbolic link. */
89 # define DIRENT_MIGHT_BE_SYMLINK(d) \
90 ((d)->d_type == DT_UNKNOWN || (d)->d_type == DT_LNK)
92 /* True if the directory entry D might be a directory. */
93 # define DIRENT_MIGHT_BE_DIR(d) \
94 ((d)->d_type == DT_DIR || DIRENT_MIGHT_BE_SYMLINK (d))
96 #else /* !HAVE_D_TYPE */
97 # define DIRENT_MUST_BE(d, t) false
98 # define DIRENT_MIGHT_BE_SYMLINK(d) true
99 # define DIRENT_MIGHT_BE_DIR(d) true
100 #endif /* HAVE_D_TYPE */
102 /* If the system has the `struct dirent64' type we use it internally. */
103 #if defined _LIBC && !defined COMPILE_GLOB64
104 # if defined HAVE_DIRENT_H || defined __GNU_LIBRARY__
105 # define CONVERT_D_NAMLEN(d64, d32)
107 # define CONVERT_D_NAMLEN(d64, d32) \
108 (d64)->d_namlen = (d32)->d_namlen;
111 # if (defined POSIX || defined WINDOWS32) && !defined __GNU_LIBRARY__
112 # define CONVERT_D_INO(d64, d32)
114 # define CONVERT_D_INO(d64, d32) \
115 (d64)->d_ino = (d32)->d_ino;
118 # ifdef _DIRENT_HAVE_D_TYPE
119 # define CONVERT_D_TYPE(d64, d32) \
120 (d64)->d_type = (d32)->d_type;
122 # define CONVERT_D_TYPE(d64, d32)
125 # define CONVERT_DIRENT_DIRENT64(d64, d32) \
126 memcpy ((d64)->d_name, (d32)->d_name, NAMLEN (d32) + 1); \
127 CONVERT_D_NAMLEN (d64, d32) \
128 CONVERT_D_INO (d64, d32) \
129 CONVERT_D_TYPE (d64, d32)
133 #if (defined POSIX || defined WINDOWS32) && !defined __GNU_LIBRARY__
134 /* Posix does not require that the d_ino field be present, and some
135 systems do not provide it. */
136 # define REAL_DIR_ENTRY(dp) 1
138 # define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
144 /* NAME_MAX is usually defined in <dirent.h> or <limits.h>. */
147 # define NAME_MAX (sizeof (((struct dirent *) 0)->d_name))
154 # define strdup(str) __strdup (str)
155 # define sysconf(id) __sysconf (id)
156 # define closedir(dir) __closedir (dir)
157 # define opendir(name) __opendir (name)
158 # define readdir(str) __readdir64 (str)
159 # define getpwnam_r(name, bufp, buf, len, res) \
160 __getpwnam_r (name, bufp, buf, len, res)
162 # define __stat64(fname, buf) __xstat64 (_STAT_VER, fname, buf)
164 # define struct_stat64 struct stat64
166 # include "getlogin_r.h"
167 # include "mempcpy.h"
168 # include "stat-macros.h"
170 # define __stat64(fname, buf) stat (fname, buf)
171 # define struct_stat64 struct stat
172 # define __stat(fname, buf) stat (fname, buf)
173 # define __alloca alloca
174 # define __readdir readdir
175 # define __readdir64 readdir64
176 # define __glob_pattern_p glob_pattern_p
181 #ifdef _SC_GETPW_R_SIZE_MAX
182 # define GETPW_R_SIZE_MAX() sysconf (_SC_GETPW_R_SIZE_MAX)
184 # define GETPW_R_SIZE_MAX() (-1)
186 #ifdef _SC_LOGIN_NAME_MAX
187 # define GET_LOGIN_NAME_MAX() sysconf (_SC_LOGIN_NAME_MAX)
189 # define GET_LOGIN_NAME_MAX() (-1)
192 static const char *next_brace_sub (const char *begin, int flags) __THROW;
194 #endif /* !defined _LIBC || !defined GLOB_ONLY_P */
196 #ifndef attribute_hidden
197 # define attribute_hidden
200 static int glob_in_dir (const char *pattern, const char *directory,
201 int flags, int (*errfunc) (const char *, int),
203 extern int __glob_pattern_type (const char *pattern, int quote)
206 #if !defined _LIBC || !defined GLOB_ONLY_P
207 static int prefix_array (const char *prefix, char **array, size_t n) __THROW;
208 static int collated_compare (const void *, const void *) __THROW;
211 /* Find the end of the sub-pattern in a brace expression. */
213 next_brace_sub (const char *cp, int flags)
215 unsigned int depth = 0;
217 if ((flags & GLOB_NOESCAPE) == 0 && *cp == '\\')
225 if ((*cp == '}' && depth-- == 0) || (*cp == ',' && depth == 0))
232 return *cp != '\0' ? cp : NULL;
235 #endif /* !defined _LIBC || !defined GLOB_ONLY_P */
237 /* Do glob searching for PATTERN, placing results in PGLOB.
238 The bits defined above may be set in FLAGS.
239 If a directory cannot be opened or read and ERRFUNC is not nil,
240 it is called with the pathname that caused the error, and the
241 `errno' value from the failing call; if it returns non-zero
242 `glob' returns GLOB_ABORTED; if it returns zero, the error is ignored.
243 If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
244 Otherwise, `glob' returns zero. */
246 #ifdef GLOB_ATTRIBUTE
249 glob (pattern, flags, errfunc, pglob)
252 int (*errfunc) (const char *, int);
255 const char *filename;
261 int dirname_modified;
264 if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0)
266 __set_errno (EINVAL);
270 if (!(flags & GLOB_DOOFFS))
271 /* Have to do this so `globfree' knows where to start freeing. It
272 also makes all the code that uses gl_offs simpler. */
275 if (flags & GLOB_BRACE)
279 if (flags & GLOB_NOESCAPE)
280 begin = strchr (pattern, '{');
292 if (*begin == '\\' && begin[1] != '\0')
294 else if (*begin == '{')
303 /* Allocate working buffer large enough for our work. Note that
304 we have at least an opening and closing brace. */
312 char onealt[strlen (pattern) - 1];
314 char *onealt = (char *) malloc (strlen (pattern) - 1);
317 if (!(flags & GLOB_APPEND))
320 pglob->gl_pathv = NULL;
326 /* We know the prefix for all sub-patterns. */
327 alt_start = mempcpy (onealt, pattern, begin - pattern);
329 /* Find the first sub-pattern and at the same time find the
330 rest after the closing brace. */
331 next = next_brace_sub (begin + 1, flags);
334 /* It is an illegal expression. */
338 return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
341 /* Now find the end of the whole brace expression. */
345 rest = next_brace_sub (rest + 1, flags);
348 /* It is an illegal expression. */
352 return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
355 /* Please note that we now can be sure the brace expression
357 rest_len = strlen (++rest) + 1;
359 /* We have a brace expression. BEGIN points to the opening {,
360 NEXT points past the terminator of the first element, and END
361 points past the final }. We will accumulate result names from
362 recursive runs for each brace alternative in the buffer using
365 if (!(flags & GLOB_APPEND))
367 /* This call is to set a new vector, so clear out the
368 vector so we can append to it. */
370 pglob->gl_pathv = NULL;
372 firstc = pglob->gl_pathc;
379 /* Construct the new glob expression. */
380 mempcpy (mempcpy (alt_start, p, next - p), rest, rest_len);
382 result = glob (onealt,
383 ((flags & ~(GLOB_NOCHECK | GLOB_NOMAGIC))
384 | GLOB_APPEND), errfunc, pglob);
386 /* If we got an error, return it. */
387 if (result && result != GLOB_NOMATCH)
392 if (!(flags & GLOB_APPEND))
401 /* We saw the last entry. */
405 next = next_brace_sub (p, flags);
406 assert (next != NULL);
413 if (pglob->gl_pathc != firstc)
414 /* We found some entries. */
416 else if (!(flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
421 if (!(flags & GLOB_APPEND))
424 if (!(flags & GLOB_DOOFFS))
425 pglob->gl_pathv = NULL;
429 pglob->gl_pathv = (char **) malloc ((pglob->gl_offs + 1)
431 if (pglob->gl_pathv == NULL)
434 for (i = 0; i <= pglob->gl_offs; ++i)
435 pglob->gl_pathv[i] = NULL;
439 oldcount = pglob->gl_pathc + pglob->gl_offs;
441 /* Find the filename. */
442 filename = strrchr (pattern, '/');
443 #if defined __MSDOS__ || defined WINDOWS32
444 /* The case of "d:pattern". Since `:' is not allowed in
445 file names, we can safely assume that wherever it
446 happens in pattern, it signals the filename part. This
447 is so we could some day support patterns like "[a-z]:foo". */
448 if (filename == NULL)
449 filename = strchr (pattern, ':');
450 #endif /* __MSDOS__ || WINDOWS32 */
451 dirname_modified = 0;
452 if (filename == NULL)
454 /* This can mean two things: a simple name or "~name". The latter
455 case is nothing but a notation for a directory. */
456 if ((flags & (GLOB_TILDE|GLOB_TILDE_CHECK)) && pattern[0] == '~')
459 dirlen = strlen (pattern);
461 /* Set FILENAME to NULL as a special flag. This is ugly but
462 other solutions would require much more code. We test for
463 this special case below. */
468 if (__builtin_expect (pattern[0] == '\0', 0))
470 dirs.gl_pathv = NULL;
483 else if (filename == pattern
484 || (filename == pattern + 1 && pattern[0] == '\\'
485 && (flags & GLOB_NOESCAPE) == 0))
487 /* "/pattern" or "\\/pattern". */
495 dirlen = filename - pattern;
496 #if defined __MSDOS__ || defined WINDOWS32
498 || (filename > pattern + 1 && filename[-1] == ':'))
503 drive_spec = (char *) __alloca (dirlen + 1);
504 *((char *) mempcpy (drive_spec, pattern, dirlen)) = '\0';
505 /* For now, disallow wildcards in the drive spec, to
506 prevent infinite recursion in glob. */
507 if (__glob_pattern_p (drive_spec, !(flags & GLOB_NOESCAPE)))
509 /* If this is "d:pattern", we need to copy `:' to DIRNAME
510 as well. If it's "d:/pattern", don't remove the slash
511 from "d:/", since "d:" and "d:/" are not the same.*/
514 newp = (char *) __alloca (dirlen + 1);
515 *((char *) mempcpy (newp, pattern, dirlen)) = '\0';
519 if (filename[0] == '\0'
520 #if defined __MSDOS__ || defined WINDOWS32
521 && dirname[dirlen - 1] != ':'
522 && (dirlen < 3 || dirname[dirlen - 2] != ':'
523 || dirname[dirlen - 1] != '/')
526 /* "pattern/". Expand "pattern", appending slashes. */
528 int orig_flags = flags;
529 if (!(flags & GLOB_NOESCAPE) && dirname[dirlen - 1] == '\\')
531 /* "pattern\\/". Remove the final backslash if it hasn't
533 char *p = (char *) &dirname[dirlen - 1];
535 while (p > dirname && p[-1] == '\\') --p;
536 if ((&dirname[dirlen] - p) & 1)
538 *(char *) &dirname[--dirlen] = '\0';
539 flags &= ~(GLOB_NOCHECK | GLOB_NOMAGIC);
542 int val = glob (dirname, flags | GLOB_MARK, errfunc, pglob);
544 pglob->gl_flags = ((pglob->gl_flags & ~GLOB_MARK)
545 | (flags & GLOB_MARK));
546 else if (val == GLOB_NOMATCH && flags != orig_flags)
548 /* Make sure globfree (&dirs); is a nop. */
549 dirs.gl_pathv = NULL;
551 oldcount = pglob->gl_pathc + pglob->gl_offs;
559 if ((flags & (GLOB_TILDE|GLOB_TILDE_CHECK)) && dirname[0] == '~')
561 if (dirname[1] == '\0' || dirname[1] == '/'
562 || (!(flags & GLOB_NOESCAPE) && dirname[1] == '\\'
563 && (dirname[2] == '\0' || dirname[2] == '/')))
565 /* Look up home directory. */
566 const char *home_dir = getenv ("HOME");
568 if (home_dir == NULL || home_dir[0] == '\0')
572 if (home_dir == NULL || home_dir[0] == '\0')
573 home_dir = "c:/users/default"; /* poor default */
575 if (home_dir == NULL || home_dir[0] == '\0')
579 size_t buflen = GET_LOGIN_NAME_MAX () + 1;
582 /* `sysconf' does not support _SC_LOGIN_NAME_MAX. Try
585 name = (char *) __alloca (buflen);
587 success = getlogin_r (name, buflen) == 0;
591 # if defined HAVE_GETPWNAM_R || defined _LIBC
592 long int pwbuflen = GETPW_R_SIZE_MAX ();
599 /* `sysconf' does not support _SC_GETPW_R_SIZE_MAX.
600 Try a moderate value. */
603 pwtmpbuf = (char *) __alloca (pwbuflen);
605 while (getpwnam_r (name, &pwbuf, pwtmpbuf, pwbuflen, &p)
614 pwtmpbuf = extend_alloca (pwtmpbuf, pwbuflen,
618 pwtmpbuf = (char *) __alloca (pwbuflen);
626 home_dir = p->pw_dir;
629 if (home_dir == NULL || home_dir[0] == '\0')
631 if (flags & GLOB_TILDE_CHECK)
634 home_dir = "~"; /* No luck. */
636 # endif /* WINDOWS32 */
638 /* Now construct the full directory. */
639 if (dirname[1] == '\0')
642 dirlen = strlen (dirname);
647 size_t home_len = strlen (home_dir);
648 newp = (char *) __alloca (home_len + dirlen);
649 mempcpy (mempcpy (newp, home_dir, home_len),
650 &dirname[1], dirlen);
652 dirlen += home_len - 1;
654 dirname_modified = 1;
656 # if !defined _AMIGA && !defined WINDOWS32
659 char *end_name = strchr (dirname, '/');
660 const char *user_name;
661 const char *home_dir;
662 char *unescape = NULL;
664 if (!(flags & GLOB_NOESCAPE))
666 if (end_name == NULL)
668 unescape = strchr (dirname, '\\');
670 end_name = strchr (unescape, '\0');
673 unescape = memchr (dirname, '\\', end_name - dirname);
675 if (end_name == NULL)
676 user_name = dirname + 1;
680 newp = (char *) __alloca (end_name - dirname);
681 if (unescape != NULL)
683 char *p = mempcpy (newp, dirname + 1,
684 unescape - dirname - 1);
692 /* "~fo\\o\\" unescape to user_name "foo\\",
693 but "~fo\\o\\/" unescape to user_name
695 if (filename == NULL)
706 *((char *) mempcpy (newp, dirname + 1, end_name - dirname))
711 /* Look up specific user's home directory. */
714 # if defined HAVE_GETPWNAM_R || defined _LIBC
715 long int buflen = GETPW_R_SIZE_MAX ();
722 /* `sysconf' does not support _SC_GETPW_R_SIZE_MAX. Try a
726 pwtmpbuf = (char *) __alloca (buflen);
728 while (getpwnam_r (user_name, &pwbuf, pwtmpbuf, buflen, &p) != 0)
736 pwtmpbuf = extend_alloca (pwtmpbuf, buflen, 2 * buflen);
739 pwtmpbuf = __alloca (buflen);
744 p = getpwnam (user_name);
747 home_dir = p->pw_dir;
751 /* If we found a home directory use this. */
752 if (home_dir != NULL)
755 size_t home_len = strlen (home_dir);
756 size_t rest_len = end_name == NULL ? 0 : strlen (end_name);
757 newp = (char *) __alloca (home_len + rest_len + 1);
758 *((char *) mempcpy (mempcpy (newp, home_dir, home_len),
759 end_name, rest_len)) = '\0';
761 dirlen = home_len + rest_len;
762 dirname_modified = 1;
765 if (flags & GLOB_TILDE_CHECK)
766 /* We have to regard it as an error if we cannot find the
770 # endif /* Not Amiga && not WINDOWS32. */
772 #endif /* Not VMS. */
774 /* Now test whether we looked for "~" or "~NAME". In this case we
775 can give the answer now. */
776 if (filename == NULL)
781 /* Return the directory if we don't check for error or if it exists. */
782 if ((flags & GLOB_NOCHECK)
783 || (((__builtin_expect (flags & GLOB_ALTDIRFUNC, 0))
784 ? ((*pglob->gl_stat) (dirname, &st) == 0
785 && S_ISDIR (st.st_mode))
786 : (__stat64 (dirname, &st64) == 0 && S_ISDIR (st64.st_mode)))))
788 int newcount = pglob->gl_pathc + pglob->gl_offs;
792 = (char **) realloc (pglob->gl_pathv,
793 (newcount + 1 + 1) * sizeof (char *));
794 if (new_gl_pathv == NULL)
797 free (pglob->gl_pathv);
798 pglob->gl_pathv = NULL;
802 pglob->gl_pathv = new_gl_pathv;
804 if (flags & GLOB_MARK)
807 pglob->gl_pathv[newcount] = malloc (dirlen + 2);
808 if (pglob->gl_pathv[newcount] == NULL)
810 p = mempcpy (pglob->gl_pathv[newcount], dirname, dirlen);
816 pglob->gl_pathv[newcount] = strdup (dirname);
817 if (pglob->gl_pathv[newcount] == NULL)
820 pglob->gl_pathv[++newcount] = NULL;
822 pglob->gl_flags = flags;
831 meta = __glob_pattern_type (dirname, !(flags & GLOB_NOESCAPE));
832 /* meta is 1 if correct glob pattern containing metacharacters.
833 If meta has bit (1 << 2) set, it means there was an unterminated
834 [ which we handle the same, using fnmatch. Broken unterminated
835 pattern bracket expressions ought to be rare enough that it is
836 not worth special casing them, fnmatch will do the right thing. */
839 /* The directory name contains metacharacters, so we
840 have to glob for the directory, and then glob for
841 the pattern in each directory found. */
844 if (!(flags & GLOB_NOESCAPE) && dirlen > 0 && dirname[dirlen - 1] == '\\')
846 /* "foo\\/bar". Remove the final backslash from dirname
847 if it has not been quoted. */
848 char *p = (char *) &dirname[dirlen - 1];
850 while (p > dirname && p[-1] == '\\') --p;
851 if ((&dirname[dirlen] - p) & 1)
852 *(char *) &dirname[--dirlen] = '\0';
855 if (__builtin_expect ((flags & GLOB_ALTDIRFUNC) != 0, 0))
857 /* Use the alternative access functions also in the recursive
859 dirs.gl_opendir = pglob->gl_opendir;
860 dirs.gl_readdir = pglob->gl_readdir;
861 dirs.gl_closedir = pglob->gl_closedir;
862 dirs.gl_stat = pglob->gl_stat;
863 dirs.gl_lstat = pglob->gl_lstat;
866 status = glob (dirname,
867 ((flags & (GLOB_ERR | GLOB_NOESCAPE
869 | GLOB_NOSORT | GLOB_ONLYDIR),
873 if ((flags & GLOB_NOCHECK) == 0 || status != GLOB_NOMATCH)
878 /* We have successfully globbed the preceding directory name.
879 For each name we found, call glob_in_dir on it and FILENAME,
880 appending the results to PGLOB. */
881 for (i = 0; i < dirs.gl_pathc; ++i)
887 /* Make globbing interruptible in the bash shell. */
888 extern int interrupt_state;
898 old_pathc = pglob->gl_pathc;
899 status = glob_in_dir (filename, dirs.gl_pathv[i],
900 ((flags | GLOB_APPEND)
901 & ~(GLOB_NOCHECK | GLOB_NOMAGIC)),
903 if (status == GLOB_NOMATCH)
904 /* No matches in this directory. Try the next. */
915 /* Stick the directory on the front of each name. */
916 if (prefix_array (dirs.gl_pathv[i],
917 &pglob->gl_pathv[old_pathc + pglob->gl_offs],
918 pglob->gl_pathc - old_pathc))
927 flags |= GLOB_MAGCHAR;
929 /* We have ignored the GLOB_NOCHECK flag in the `glob_in_dir' calls.
930 But if we have not found any matching entry and the GLOB_NOCHECK
931 flag was set we must return the input pattern itself. */
932 if (pglob->gl_pathc + pglob->gl_offs == oldcount)
936 if (flags & GLOB_NOCHECK)
938 int newcount = pglob->gl_pathc + pglob->gl_offs;
941 new_gl_pathv = (char **) realloc (pglob->gl_pathv,
944 if (new_gl_pathv == NULL)
949 pglob->gl_pathv = new_gl_pathv;
951 pglob->gl_pathv[newcount] = __strdup (pattern);
952 if (pglob->gl_pathv[newcount] == NULL)
963 pglob->gl_pathv[newcount] = NULL;
964 pglob->gl_flags = flags;
977 int old_pathc = pglob->gl_pathc;
978 int orig_flags = flags;
982 char *p = strchr (dirname, '\\'), *q;
983 /* We need to unescape the dirname string. It is certainly
984 allocated by alloca, as otherwise filename would be NULL
985 or dirname wouldn't contain backslashes. */
998 while (*p++ != '\0');
999 dirname_modified = 1;
1001 if (dirname_modified)
1002 flags &= ~(GLOB_NOCHECK | GLOB_NOMAGIC);
1003 status = glob_in_dir (filename, dirname, flags, errfunc, pglob);
1006 if (status == GLOB_NOMATCH && flags != orig_flags
1007 && pglob->gl_pathc + pglob->gl_offs == oldcount)
1009 /* Make sure globfree (&dirs); is a nop. */
1010 dirs.gl_pathv = NULL;
1019 /* Stick the directory on the front of each name. */
1020 if (prefix_array (dirname,
1021 &pglob->gl_pathv[old_pathc + pglob->gl_offs],
1022 pglob->gl_pathc - old_pathc))
1025 pglob->gl_pathc = 0;
1026 return GLOB_NOSPACE;
1031 if (flags & GLOB_MARK)
1033 /* Append slashes to directory names. */
1038 for (i = oldcount; i < pglob->gl_pathc + pglob->gl_offs; ++i)
1039 if ((__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
1040 ? ((*pglob->gl_stat) (pglob->gl_pathv[i], &st) == 0
1041 && S_ISDIR (st.st_mode))
1042 : (__stat64 (pglob->gl_pathv[i], &st64) == 0
1043 && S_ISDIR (st64.st_mode))))
1045 size_t len = strlen (pglob->gl_pathv[i]) + 2;
1046 char *new = realloc (pglob->gl_pathv[i], len);
1050 pglob->gl_pathc = 0;
1051 return GLOB_NOSPACE;
1053 strcpy (&new[len - 2], "/");
1054 pglob->gl_pathv[i] = new;
1058 if (!(flags & GLOB_NOSORT))
1060 /* Sort the vector. */
1061 qsort (&pglob->gl_pathv[oldcount],
1062 pglob->gl_pathc + pglob->gl_offs - oldcount,
1063 sizeof (char *), collated_compare);
1068 #if defined _LIBC && !defined glob
1069 libc_hidden_def (glob)
1073 #if !defined _LIBC || !defined GLOB_ONLY_P
1075 /* Free storage allocated in PGLOB by a previous `glob' call. */
1078 register glob_t *pglob;
1080 if (pglob->gl_pathv != NULL)
1083 for (i = 0; i < pglob->gl_pathc; ++i)
1084 free (pglob->gl_pathv[pglob->gl_offs + i]);
1085 free (pglob->gl_pathv);
1086 pglob->gl_pathv = NULL;
1089 #if defined _LIBC && !defined globfree
1090 libc_hidden_def (globfree)
1094 /* Do a collated comparison of A and B. */
1096 collated_compare (const void *a, const void *b)
1098 const char *const s1 = *(const char *const * const) a;
1099 const char *const s2 = *(const char *const * const) b;
1107 return strcoll (s1, s2);
1111 /* Prepend DIRNAME to each of N members of ARRAY, replacing ARRAY's
1112 elements in place. Return nonzero if out of memory, zero if successful.
1113 A slash is inserted between DIRNAME and each elt of ARRAY,
1114 unless DIRNAME is just "/". Each old element of ARRAY is freed. */
1116 prefix_array (const char *dirname, char **array, size_t n)
1119 size_t dirlen = strlen (dirname);
1120 #if defined __MSDOS__ || defined WINDOWS32
1122 # define DIRSEP_CHAR sep_char
1124 # define DIRSEP_CHAR '/'
1127 if (dirlen == 1 && dirname[0] == '/')
1128 /* DIRNAME is just "/", so normal prepending would get us "//foo".
1129 We want "/foo" instead, so don't prepend any chars from DIRNAME. */
1131 #if defined __MSDOS__ || defined WINDOWS32
1132 else if (dirlen > 1)
1134 if (dirname[dirlen - 1] == '/' && dirname[dirlen - 2] == ':')
1135 /* DIRNAME is "d:/". Don't prepend the slash from DIRNAME. */
1137 else if (dirname[dirlen - 1] == ':')
1139 /* DIRNAME is "d:". Use `:' instead of `/'. */
1146 for (i = 0; i < n; ++i)
1148 size_t eltlen = strlen (array[i]) + 1;
1149 char *new = (char *) malloc (dirlen + 1 + eltlen);
1158 char *endp = mempcpy (new, dirname, dirlen);
1159 *endp++ = DIRSEP_CHAR;
1160 mempcpy (endp, array[i], eltlen);
1170 /* We must not compile this function twice. */
1171 #if !defined _LIBC || !defined NO_GLOB_PATTERN_P
1173 __glob_pattern_type (pattern, quote)
1174 const char *pattern;
1177 register const char *p;
1180 for (p = pattern; *p != '\0'; ++p)
1209 /* Return nonzero if PATTERN contains any metacharacters.
1210 Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
1212 __glob_pattern_p (pattern, quote)
1213 const char *pattern;
1216 return __glob_pattern_type (pattern, quote) == 1;
1219 weak_alias (__glob_pattern_p, glob_pattern_p)
1223 #endif /* !GLOB_ONLY_P */
1226 /* We put this in a separate function mainly to allow the memory
1227 allocated with alloca to be recycled. */
1228 #if !defined _LIBC || !defined GLOB_ONLY_P
1230 __attribute_noinline__
1231 link_exists2_p (const char *dir, size_t dirlen, const char *fname,
1238 size_t fnamelen = strlen (fname);
1239 char *fullname = (char *) __alloca (dirlen + 1 + fnamelen + 1);
1245 mempcpy (mempcpy (mempcpy (fullname, dir, dirlen), "/", 1),
1246 fname, fnamelen + 1);
1249 return (*pglob->gl_stat) (fullname, &st) == 0;
1251 return ((__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
1252 ? (*pglob->gl_stat) (fullname, &st)
1253 : __stat64 (fullname, &st64)) == 0);
1257 # define link_exists_p(dfd, dirname, dirnamelen, fname, pglob, flags) \
1258 (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0) \
1259 ? link_exists2_p (dirname, dirnamelen, fname, pglob) \
1260 : ({ struct stat64 st64; \
1261 __fxstatat64 (_STAT_VER, dfd, fname, &st64, 0) == 0; }))
1263 # define link_exists_p(dfd, dirname, dirnamelen, fname, pglob, flags) \
1264 link_exists2_p (dirname, dirnamelen, fname, pglob, flags)
1269 /* Like `glob', but PATTERN is a final pathname component,
1270 and matches are searched for in DIRECTORY.
1271 The GLOB_NOSORT bit in FLAGS is ignored. No sorting is ever done.
1272 The GLOB_APPEND flag is assumed to be set (always appends). */
1274 glob_in_dir (const char *pattern, const char *directory, int flags,
1275 int (*errfunc) (const char *, int),
1278 size_t dirlen = strlen (directory);
1279 void *stream = NULL;
1282 struct globnames *next;
1286 #define INITIAL_COUNT sizeof (init_names.name) / sizeof (init_names.name[0])
1287 struct globnames init_names;
1288 struct globnames *names = &init_names;
1289 struct globnames *names_alloca = &init_names;
1291 size_t allocasize = sizeof (init_names);
1296 init_names.next = NULL;
1297 init_names.count = INITIAL_COUNT;
1299 meta = __glob_pattern_type (pattern, !(flags & GLOB_NOESCAPE));
1300 if (meta == 0 && (flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
1302 /* We need not do any tests. The PATTERN contains no meta
1303 characters and we must not return an error therefore the
1304 result will always contain exactly one name. */
1305 flags |= GLOB_NOCHECK;
1309 /* Since we use the normal file functions we can also use stat()
1310 to verify the file is there. */
1313 size_t patlen = strlen (pattern);
1314 char *fullname = (char *) __alloca (dirlen + 1 + patlen + 1);
1316 mempcpy (mempcpy (mempcpy (fullname, directory, dirlen),
1318 pattern, patlen + 1);
1319 if ((__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
1320 ? (*pglob->gl_stat) (fullname, &st)
1321 : __stat64 (fullname, &st64)) == 0)
1322 /* We found this file to be existing. Now tell the rest
1323 of the function to copy this name into the result. */
1324 flags |= GLOB_NOCHECK;
1328 stream = (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
1329 ? (*pglob->gl_opendir) (directory)
1330 : opendir (directory));
1333 if (errno != ENOTDIR
1334 && ((errfunc != NULL && (*errfunc) (directory, errno))
1335 || (flags & GLOB_ERR)))
1336 return GLOB_ABORTED;
1341 int dfd = (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
1342 ? -1 : dirfd ((DIR *) stream));
1344 int fnm_flags = ((!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0)
1345 | ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)
1346 #if defined _AMIGA || defined VMS
1350 flags |= GLOB_MAGCHAR;
1356 #if defined _LIBC && !defined COMPILE_GLOB64
1360 struct dirent64 d64;
1361 char room [offsetof (struct dirent64, d_name[0])
1366 if (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0))
1368 struct dirent *d32 = (*pglob->gl_readdir) (stream);
1371 CONVERT_DIRENT_DIRENT64 (&d64buf.d64, d32);
1378 d = __readdir64 (stream);
1380 struct dirent *d = (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
1381 ? ((struct dirent *)
1382 (*pglob->gl_readdir) (stream))
1383 : __readdir (stream));
1387 if (! REAL_DIR_ENTRY (d))
1390 /* If we shall match only directories use the information
1391 provided by the dirent call if possible. */
1392 if ((flags & GLOB_ONLYDIR) && !DIRENT_MIGHT_BE_DIR (d))
1397 if (fnmatch (pattern, name, fnm_flags) == 0)
1399 /* If the file we found is a symlink we have to
1400 make sure the target file exists. */
1401 if (!DIRENT_MIGHT_BE_SYMLINK (d)
1402 || link_exists_p (dfd, directory, dirlen, name, pglob,
1405 if (cur == names->count)
1407 struct globnames *newnames;
1408 size_t count = names->count * 2;
1409 size_t size = (sizeof (struct globnames)
1410 + ((count - INITIAL_COUNT)
1411 * sizeof (char *)));
1413 if (__libc_use_alloca (allocasize))
1414 newnames = names_alloca = __alloca (size);
1415 else if ((newnames = malloc (size))
1418 newnames->count = count;
1419 newnames->next = names;
1424 names->name[cur] = (char *) malloc (len + 1);
1425 if (names->name[cur] == NULL)
1427 *((char *) mempcpy (names->name[cur++], name, len))
1436 if (nfound == 0 && (flags & GLOB_NOCHECK))
1438 size_t len = strlen (pattern);
1440 names->name[cur] = (char *) malloc (len + 1);
1441 if (names->name[cur] == NULL)
1443 *((char *) mempcpy (names->name[cur++], pattern, len)) = '\0';
1446 int result = GLOB_NOMATCH;
1451 char **new_gl_pathv;
1453 = (char **) realloc (pglob->gl_pathv,
1454 (pglob->gl_pathc + pglob->gl_offs + nfound + 1)
1456 if (new_gl_pathv == NULL)
1461 struct globnames *old = names;
1462 for (size_t i = 0; i < cur; ++i)
1463 free (names->name[i]);
1464 names = names->next;
1465 /* NB: we will not leak memory here if we exit without
1466 freeing the current block assigned to OLD. At least
1467 the very first block is always allocated on the stack
1468 and this is the block assigned to OLD here. */
1471 assert (old == &init_names);
1475 if (old == names_alloca)
1476 names_alloca = names;
1480 result = GLOB_NOSPACE;
1486 struct globnames *old = names;
1487 for (size_t i = 0; i < cur; ++i)
1488 new_gl_pathv[pglob->gl_offs + pglob->gl_pathc++]
1490 names = names->next;
1491 /* NB: we will not leak memory here if we exit without
1492 freeing the current block assigned to OLD. At least
1493 the very first block is always allocated on the stack
1494 and this is the block assigned to OLD here. */
1497 assert (old == &init_names);
1501 if (old == names_alloca)
1502 names_alloca = names;
1507 pglob->gl_pathv = new_gl_pathv;
1509 pglob->gl_pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
1511 pglob->gl_flags = flags;
1518 if (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0))
1519 (*pglob->gl_closedir) (stream);