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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /posix/glob.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
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-rw-r--r--posix/glob.c1351
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diff --git a/posix/glob.c b/posix/glob.c
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+++ b/posix/glob.c
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+/* Copyright (C) 1991-2002,2003,2004,2005,2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <glob.h>
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stddef.h>
+
+/* Outcomment the following line for production quality code. */
+/* #define NDEBUG 1 */
+#include <assert.h>
+
+#include <stdio.h> /* Needed on stupid SunOS for assert. */
+
+#if !defined _LIBC || !defined GLOB_ONLY_P
+#if defined HAVE_UNISTD_H || defined _LIBC
+# include <unistd.h>
+# ifndef POSIX
+# ifdef _POSIX_VERSION
+# define POSIX
+# endif
+# endif
+#endif
+
+#include <pwd.h>
+
+#include <errno.h>
+#ifndef __set_errno
+# define __set_errno(val) errno = (val)
+#endif
+
+#if defined HAVE_DIRENT_H || defined __GNU_LIBRARY__
+# include <dirent.h>
+# define NAMLEN(dirent) strlen((dirent)->d_name)
+#else
+# define dirent direct
+# define NAMLEN(dirent) (dirent)->d_namlen
+# ifdef HAVE_SYS_NDIR_H
+# include <sys/ndir.h>
+# endif
+# ifdef HAVE_SYS_DIR_H
+# include <sys/dir.h>
+# endif
+# ifdef HAVE_NDIR_H
+# include <ndir.h>
+# endif
+# ifdef HAVE_VMSDIR_H
+# include "vmsdir.h"
+# endif /* HAVE_VMSDIR_H */
+#endif
+
+
+/* In GNU systems, <dirent.h> defines this macro for us. */
+#ifdef _D_NAMLEN
+# undef NAMLEN
+# define NAMLEN(d) _D_NAMLEN(d)
+#endif
+
+/* When used in the GNU libc the symbol _DIRENT_HAVE_D_TYPE is available
+ if the `d_type' member for `struct dirent' is available.
+ HAVE_STRUCT_DIRENT_D_TYPE plays the same role in GNULIB. */
+#if defined _DIRENT_HAVE_D_TYPE || defined HAVE_STRUCT_DIRENT_D_TYPE
+/* True if the directory entry D must be of type T. */
+# define DIRENT_MUST_BE(d, t) ((d)->d_type == (t))
+
+/* True if the directory entry D might be a symbolic link. */
+# define DIRENT_MIGHT_BE_SYMLINK(d) \
+ ((d)->d_type == DT_UNKNOWN || (d)->d_type == DT_LNK)
+
+/* True if the directory entry D might be a directory. */
+# define DIRENT_MIGHT_BE_DIR(d) \
+ ((d)->d_type == DT_DIR || DIRENT_MIGHT_BE_SYMLINK (d))
+
+#else /* !HAVE_D_TYPE */
+# define DIRENT_MUST_BE(d, t) false
+# define DIRENT_MIGHT_BE_SYMLINK(d) true
+# define DIRENT_MIGHT_BE_DIR(d) true
+#endif /* HAVE_D_TYPE */
+
+/* If the system has the `struct dirent64' type we use it internally. */
+#if defined _LIBC && !defined COMPILE_GLOB64
+# if defined HAVE_DIRENT_H || defined __GNU_LIBRARY__
+# define CONVERT_D_NAMLEN(d64, d32)
+# else
+# define CONVERT_D_NAMLEN(d64, d32) \
+ (d64)->d_namlen = (d32)->d_namlen;
+# endif
+
+# if (defined POSIX || defined WINDOWS32) && !defined __GNU_LIBRARY__
+# define CONVERT_D_INO(d64, d32)
+# else
+# define CONVERT_D_INO(d64, d32) \
+ (d64)->d_ino = (d32)->d_ino;
+# endif
+
+# ifdef _DIRENT_HAVE_D_TYPE
+# define CONVERT_D_TYPE(d64, d32) \
+ (d64)->d_type = (d32)->d_type;
+# else
+# define CONVERT_D_TYPE(d64, d32)
+# endif
+
+# define CONVERT_DIRENT_DIRENT64(d64, d32) \
+ memcpy ((d64)->d_name, (d32)->d_name, NAMLEN (d32) + 1); \
+ CONVERT_D_NAMLEN (d64, d32) \
+ CONVERT_D_INO (d64, d32) \
+ CONVERT_D_TYPE (d64, d32)
+#endif
+
+
+#if (defined POSIX || defined WINDOWS32) && !defined __GNU_LIBRARY__
+/* Posix does not require that the d_ino field be present, and some
+ systems do not provide it. */
+# define REAL_DIR_ENTRY(dp) 1
+#else
+# define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
+#endif /* POSIX */
+
+#include <stdlib.h>
+#include <string.h>
+
+/* NAME_MAX is usually defined in <dirent.h> or <limits.h>. */
+#include <limits.h>
+#ifndef NAME_MAX
+# define NAME_MAX (sizeof (((struct dirent *) 0)->d_name))
+#endif
+
+#include <alloca.h>
+
+#ifdef _LIBC
+# undef strdup
+# define strdup(str) __strdup (str)
+# define sysconf(id) __sysconf (id)
+# define closedir(dir) __closedir (dir)
+# define opendir(name) __opendir (name)
+# define readdir(str) __readdir64 (str)
+# define getpwnam_r(name, bufp, buf, len, res) \
+ __getpwnam_r (name, bufp, buf, len, res)
+# ifndef __stat64
+# define __stat64(fname, buf) __xstat64 (_STAT_VER, fname, buf)
+# endif
+# define struct_stat64 struct stat64
+#else /* !_LIBC */
+# include "getlogin_r.h"
+# include "mempcpy.h"
+# include "stat-macros.h"
+# include "strdup.h"
+# define __stat64(fname, buf) stat (fname, buf)
+# define struct_stat64 struct stat
+# define __stat(fname, buf) stat (fname, buf)
+# define __alloca alloca
+# define __readdir readdir
+# define __readdir64 readdir64
+# define __glob_pattern_p glob_pattern_p
+#endif /* _LIBC */
+
+#include <fnmatch.h>
+
+#ifdef _SC_GETPW_R_SIZE_MAX
+# define GETPW_R_SIZE_MAX() sysconf (_SC_GETPW_R_SIZE_MAX)
+#else
+# define GETPW_R_SIZE_MAX() (-1)
+#endif
+#ifdef _SC_LOGIN_NAME_MAX
+# define GET_LOGIN_NAME_MAX() sysconf (_SC_LOGIN_NAME_MAX)
+#else
+# define GET_LOGIN_NAME_MAX() (-1)
+#endif
+
+static const char *next_brace_sub (const char *begin, int flags) __THROW;
+
+#endif /* !defined _LIBC || !defined GLOB_ONLY_P */
+
+static int glob_in_dir (const char *pattern, const char *directory,
+ int flags, int (*errfunc) (const char *, int),
+ glob_t *pglob);
+
+#if !defined _LIBC || !defined GLOB_ONLY_P
+static int prefix_array (const char *prefix, char **array, size_t n) __THROW;
+static int collated_compare (const void *, const void *) __THROW;
+
+
+/* Find the end of the sub-pattern in a brace expression. */
+static const char *
+next_brace_sub (const char *cp, int flags)
+{
+ unsigned int depth = 0;
+ while (*cp != '\0')
+ if ((flags & GLOB_NOESCAPE) == 0 && *cp == '\\')
+ {
+ if (*++cp == '\0')
+ break;
+ ++cp;
+ }
+ else
+ {
+ if ((*cp == '}' && depth-- == 0) || (*cp == ',' && depth == 0))
+ break;
+
+ if (*cp++ == '{')
+ depth++;
+ }
+
+ return *cp != '\0' ? cp : NULL;
+}
+
+#endif /* !defined _LIBC || !defined GLOB_ONLY_P */
+
+/* Do glob searching for PATTERN, placing results in PGLOB.
+ The bits defined above may be set in FLAGS.
+ If a directory cannot be opened or read and ERRFUNC is not nil,
+ it is called with the pathname that caused the error, and the
+ `errno' value from the failing call; if it returns non-zero
+ `glob' returns GLOB_ABORTED; if it returns zero, the error is ignored.
+ If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
+ Otherwise, `glob' returns zero. */
+int
+#ifdef GLOB_ATTRIBUTE
+GLOB_ATTRIBUTE
+#endif
+glob (pattern, flags, errfunc, pglob)
+ const char *pattern;
+ int flags;
+ int (*errfunc) (const char *, int);
+ glob_t *pglob;
+{
+ const char *filename;
+ const char *dirname;
+ size_t dirlen;
+ int status;
+ size_t oldcount;
+
+ if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ if (!(flags & GLOB_DOOFFS))
+ /* Have to do this so `globfree' knows where to start freeing. It
+ also makes all the code that uses gl_offs simpler. */
+ pglob->gl_offs = 0;
+
+ if (flags & GLOB_BRACE)
+ {
+ const char *begin;
+
+ if (flags & GLOB_NOESCAPE)
+ begin = strchr (pattern, '{');
+ else
+ {
+ begin = pattern;
+ while (1)
+ {
+ if (*begin == '\0')
+ {
+ begin = NULL;
+ break;
+ }
+
+ if (*begin == '\\' && begin[1] != '\0')
+ ++begin;
+ else if (*begin == '{')
+ break;
+
+ ++begin;
+ }
+ }
+
+ if (begin != NULL)
+ {
+ /* Allocate working buffer large enough for our work. Note that
+ we have at least an opening and closing brace. */
+ size_t firstc;
+ char *alt_start;
+ const char *p;
+ const char *next;
+ const char *rest;
+ size_t rest_len;
+#ifdef __GNUC__
+ char onealt[strlen (pattern) - 1];
+#else
+ char *onealt = (char *) malloc (strlen (pattern) - 1);
+ if (onealt == NULL)
+ {
+ if (!(flags & GLOB_APPEND))
+ {
+ pglob->gl_pathc = 0;
+ pglob->gl_pathv = NULL;
+ }
+ return GLOB_NOSPACE;
+ }
+#endif
+
+ /* We know the prefix for all sub-patterns. */
+ alt_start = mempcpy (onealt, pattern, begin - pattern);
+
+ /* Find the first sub-pattern and at the same time find the
+ rest after the closing brace. */
+ next = next_brace_sub (begin + 1, flags);
+ if (next == NULL)
+ {
+ /* It is an illegal expression. */
+#ifndef __GNUC__
+ free (onealt);
+#endif
+ return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
+ }
+
+ /* Now find the end of the whole brace expression. */
+ rest = next;
+ while (*rest != '}')
+ {
+ rest = next_brace_sub (rest + 1, flags);
+ if (rest == NULL)
+ {
+ /* It is an illegal expression. */
+#ifndef __GNUC__
+ free (onealt);
+#endif
+ return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
+ }
+ }
+ /* Please note that we now can be sure the brace expression
+ is well-formed. */
+ rest_len = strlen (++rest) + 1;
+
+ /* We have a brace expression. BEGIN points to the opening {,
+ NEXT points past the terminator of the first element, and END
+ points past the final }. We will accumulate result names from
+ recursive runs for each brace alternative in the buffer using
+ GLOB_APPEND. */
+
+ if (!(flags & GLOB_APPEND))
+ {
+ /* This call is to set a new vector, so clear out the
+ vector so we can append to it. */
+ pglob->gl_pathc = 0;
+ pglob->gl_pathv = NULL;
+ }
+ firstc = pglob->gl_pathc;
+
+ p = begin + 1;
+ while (1)
+ {
+ int result;
+
+ /* Construct the new glob expression. */
+ mempcpy (mempcpy (alt_start, p, next - p), rest, rest_len);
+
+ result = glob (onealt,
+ ((flags & ~(GLOB_NOCHECK | GLOB_NOMAGIC))
+ | GLOB_APPEND), errfunc, pglob);
+
+ /* If we got an error, return it. */
+ if (result && result != GLOB_NOMATCH)
+ {
+#ifndef __GNUC__
+ free (onealt);
+#endif
+ if (!(flags & GLOB_APPEND))
+ {
+ globfree (pglob);
+ pglob->gl_pathc = 0;
+ }
+ return result;
+ }
+
+ if (*next == '}')
+ /* We saw the last entry. */
+ break;
+
+ p = next + 1;
+ next = next_brace_sub (p, flags);
+ assert (next != NULL);
+ }
+
+#ifndef __GNUC__
+ free (onealt);
+#endif
+
+ if (pglob->gl_pathc != firstc)
+ /* We found some entries. */
+ return 0;
+ else if (!(flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
+ return GLOB_NOMATCH;
+ }
+ }
+
+ /* Find the filename. */
+ filename = strrchr (pattern, '/');
+#if defined __MSDOS__ || defined WINDOWS32
+ /* The case of "d:pattern". Since `:' is not allowed in
+ file names, we can safely assume that wherever it
+ happens in pattern, it signals the filename part. This
+ is so we could some day support patterns like "[a-z]:foo". */
+ if (filename == NULL)
+ filename = strchr (pattern, ':');
+#endif /* __MSDOS__ || WINDOWS32 */
+ if (filename == NULL)
+ {
+ /* This can mean two things: a simple name or "~name". The latter
+ case is nothing but a notation for a directory. */
+ if ((flags & (GLOB_TILDE|GLOB_TILDE_CHECK)) && pattern[0] == '~')
+ {
+ dirname = pattern;
+ dirlen = strlen (pattern);
+
+ /* Set FILENAME to NULL as a special flag. This is ugly but
+ other solutions would require much more code. We test for
+ this special case below. */
+ filename = NULL;
+ }
+ else
+ {
+ filename = pattern;
+#ifdef _AMIGA
+ dirname = "";
+#else
+ dirname = ".";
+#endif
+ dirlen = 0;
+ }
+ }
+ else if (filename == pattern)
+ {
+ /* "/pattern". */
+ dirname = "/";
+ dirlen = 1;
+ ++filename;
+ }
+ else
+ {
+ char *newp;
+ dirlen = filename - pattern;
+#if defined __MSDOS__ || defined WINDOWS32
+ if (*filename == ':'
+ || (filename > pattern + 1 && filename[-1] == ':'))
+ {
+ char *drive_spec;
+
+ ++dirlen;
+ drive_spec = (char *) __alloca (dirlen + 1);
+ *((char *) mempcpy (drive_spec, pattern, dirlen)) = '\0';
+ /* For now, disallow wildcards in the drive spec, to
+ prevent infinite recursion in glob. */
+ if (__glob_pattern_p (drive_spec, !(flags & GLOB_NOESCAPE)))
+ return GLOB_NOMATCH;
+ /* If this is "d:pattern", we need to copy `:' to DIRNAME
+ as well. If it's "d:/pattern", don't remove the slash
+ from "d:/", since "d:" and "d:/" are not the same.*/
+ }
+#endif
+ newp = (char *) __alloca (dirlen + 1);
+ *((char *) mempcpy (newp, pattern, dirlen)) = '\0';
+ dirname = newp;
+ ++filename;
+
+ if (filename[0] == '\0'
+#if defined __MSDOS__ || defined WINDOWS32
+ && dirname[dirlen - 1] != ':'
+ && (dirlen < 3 || dirname[dirlen - 2] != ':'
+ || dirname[dirlen - 1] != '/')
+#endif
+ && dirlen > 1)
+ /* "pattern/". Expand "pattern", appending slashes. */
+ {
+ int val = glob (dirname, flags | GLOB_MARK, errfunc, pglob);
+ if (val == 0)
+ pglob->gl_flags = ((pglob->gl_flags & ~GLOB_MARK)
+ | (flags & GLOB_MARK));
+ return val;
+ }
+ }
+
+ if (!(flags & GLOB_APPEND))
+ {
+ pglob->gl_pathc = 0;
+ if (!(flags & GLOB_DOOFFS))
+ pglob->gl_pathv = NULL;
+ else
+ {
+ size_t i;
+ pglob->gl_pathv = (char **) malloc ((pglob->gl_offs + 1)
+ * sizeof (char *));
+ if (pglob->gl_pathv == NULL)
+ return GLOB_NOSPACE;
+
+ for (i = 0; i <= pglob->gl_offs; ++i)
+ pglob->gl_pathv[i] = NULL;
+ }
+ }
+
+ oldcount = pglob->gl_pathc + pglob->gl_offs;
+
+#ifndef VMS
+ if ((flags & (GLOB_TILDE|GLOB_TILDE_CHECK)) && dirname[0] == '~')
+ {
+ if (dirname[1] == '\0' || dirname[1] == '/')
+ {
+ /* Look up home directory. */
+ const char *home_dir = getenv ("HOME");
+# ifdef _AMIGA
+ if (home_dir == NULL || home_dir[0] == '\0')
+ home_dir = "SYS:";
+# else
+# ifdef WINDOWS32
+ if (home_dir == NULL || home_dir[0] == '\0')
+ home_dir = "c:/users/default"; /* poor default */
+# else
+ if (home_dir == NULL || home_dir[0] == '\0')
+ {
+ int success;
+ char *name;
+ size_t buflen = GET_LOGIN_NAME_MAX () + 1;
+
+ if (buflen == 0)
+ /* `sysconf' does not support _SC_LOGIN_NAME_MAX. Try
+ a moderate value. */
+ buflen = 20;
+ name = (char *) __alloca (buflen);
+
+ success = getlogin_r (name, buflen) == 0;
+ if (success)
+ {
+ struct passwd *p;
+# if defined HAVE_GETPWNAM_R || defined _LIBC
+ long int pwbuflen = GETPW_R_SIZE_MAX ();
+ char *pwtmpbuf;
+ struct passwd pwbuf;
+ int save = errno;
+
+# ifndef _LIBC
+ if (pwbuflen == -1)
+ /* `sysconf' does not support _SC_GETPW_R_SIZE_MAX.
+ Try a moderate value. */
+ pwbuflen = 1024;
+# endif
+ pwtmpbuf = (char *) __alloca (pwbuflen);
+
+ while (getpwnam_r (name, &pwbuf, pwtmpbuf, pwbuflen, &p)
+ != 0)
+ {
+ if (errno != ERANGE)
+ {
+ p = NULL;
+ break;
+ }
+# ifdef _LIBC
+ pwtmpbuf = extend_alloca (pwtmpbuf, pwbuflen,
+ 2 * pwbuflen);
+# else
+ pwbuflen *= 2;
+ pwtmpbuf = (char *) __alloca (pwbuflen);
+# endif
+ __set_errno (save);
+ }
+# else
+ p = getpwnam (name);
+# endif
+ if (p != NULL)
+ home_dir = p->pw_dir;
+ }
+ }
+ if (home_dir == NULL || home_dir[0] == '\0')
+ {
+ if (flags & GLOB_TILDE_CHECK)
+ return GLOB_NOMATCH;
+ else
+ home_dir = "~"; /* No luck. */
+ }
+# endif /* WINDOWS32 */
+# endif
+ /* Now construct the full directory. */
+ if (dirname[1] == '\0')
+ dirname = home_dir;
+ else
+ {
+ char *newp;
+ size_t home_len = strlen (home_dir);
+ newp = (char *) __alloca (home_len + dirlen);
+ mempcpy (mempcpy (newp, home_dir, home_len),
+ &dirname[1], dirlen);
+ dirname = newp;
+ }
+ }
+# if !defined _AMIGA && !defined WINDOWS32
+ else
+ {
+ char *end_name = strchr (dirname, '/');
+ const char *user_name;
+ const char *home_dir;
+
+ if (end_name == NULL)
+ user_name = dirname + 1;
+ else
+ {
+ char *newp;
+ newp = (char *) __alloca (end_name - dirname);
+ *((char *) mempcpy (newp, dirname + 1, end_name - dirname))
+ = '\0';
+ user_name = newp;
+ }
+
+ /* Look up specific user's home directory. */
+ {
+ struct passwd *p;
+# if defined HAVE_GETPWNAM_R || defined _LIBC
+ long int buflen = GETPW_R_SIZE_MAX ();
+ char *pwtmpbuf;
+ struct passwd pwbuf;
+ int save = errno;
+
+# ifndef _LIBC
+ if (buflen == -1)
+ /* `sysconf' does not support _SC_GETPW_R_SIZE_MAX. Try a
+ moderate value. */
+ buflen = 1024;
+# endif
+ pwtmpbuf = (char *) __alloca (buflen);
+
+ while (getpwnam_r (user_name, &pwbuf, pwtmpbuf, buflen, &p) != 0)
+ {
+ if (errno != ERANGE)
+ {
+ p = NULL;
+ break;
+ }
+# ifdef _LIBC
+ pwtmpbuf = extend_alloca (pwtmpbuf, buflen, 2 * buflen);
+# else
+ buflen *= 2;
+ pwtmpbuf = __alloca (buflen);
+# endif
+ __set_errno (save);
+ }
+# else
+ p = getpwnam (user_name);
+# endif
+ if (p != NULL)
+ home_dir = p->pw_dir;
+ else
+ home_dir = NULL;
+ }
+ /* If we found a home directory use this. */
+ if (home_dir != NULL)
+ {
+ char *newp;
+ size_t home_len = strlen (home_dir);
+ size_t rest_len = end_name == NULL ? 0 : strlen (end_name);
+ newp = (char *) __alloca (home_len + rest_len + 1);
+ *((char *) mempcpy (mempcpy (newp, home_dir, home_len),
+ end_name, rest_len)) = '\0';
+ dirname = newp;
+ }
+ else
+ if (flags & GLOB_TILDE_CHECK)
+ /* We have to regard it as an error if we cannot find the
+ home directory. */
+ return GLOB_NOMATCH;
+ }
+# endif /* Not Amiga && not WINDOWS32. */
+ }
+#endif /* Not VMS. */
+
+ /* Now test whether we looked for "~" or "~NAME". In this case we
+ can give the answer now. */
+ if (filename == NULL)
+ {
+ struct stat st;
+ struct_stat64 st64;
+
+ /* Return the directory if we don't check for error or if it exists. */
+ if ((flags & GLOB_NOCHECK)
+ || (((flags & GLOB_ALTDIRFUNC)
+ ? ((*pglob->gl_stat) (dirname, &st) == 0
+ && S_ISDIR (st.st_mode))
+ : (__stat64 (dirname, &st64) == 0 && S_ISDIR (st64.st_mode)))))
+ {
+ int newcount = pglob->gl_pathc + pglob->gl_offs;
+ char **new_gl_pathv;
+
+ new_gl_pathv
+ = (char **) realloc (pglob->gl_pathv,
+ (newcount + 1 + 1) * sizeof (char *));
+ if (new_gl_pathv == NULL)
+ {
+ nospace:
+ free (pglob->gl_pathv);
+ pglob->gl_pathv = NULL;
+ pglob->gl_pathc = 0;
+ return GLOB_NOSPACE;
+ }
+ pglob->gl_pathv = new_gl_pathv;
+
+ pglob->gl_pathv[newcount] = strdup (dirname);
+ if (pglob->gl_pathv[newcount] == NULL)
+ goto nospace;
+ pglob->gl_pathv[++newcount] = NULL;
+ ++pglob->gl_pathc;
+ pglob->gl_flags = flags;
+
+ return 0;
+ }
+
+ /* Not found. */
+ return GLOB_NOMATCH;
+ }
+
+ if (__glob_pattern_p (dirname, !(flags & GLOB_NOESCAPE)))
+ {
+ /* The directory name contains metacharacters, so we
+ have to glob for the directory, and then glob for
+ the pattern in each directory found. */
+ glob_t dirs;
+ size_t i;
+
+ if ((flags & GLOB_ALTDIRFUNC) != 0)
+ {
+ /* Use the alternative access functions also in the recursive
+ call. */
+ dirs.gl_opendir = pglob->gl_opendir;
+ dirs.gl_readdir = pglob->gl_readdir;
+ dirs.gl_closedir = pglob->gl_closedir;
+ dirs.gl_stat = pglob->gl_stat;
+ dirs.gl_lstat = pglob->gl_lstat;
+ }
+
+ status = glob (dirname,
+ ((flags & (GLOB_ERR | GLOB_NOCHECK | GLOB_NOESCAPE
+ | GLOB_ALTDIRFUNC))
+ | GLOB_NOSORT | GLOB_ONLYDIR),
+ errfunc, &dirs);
+ if (status != 0)
+ return status;
+
+ /* We have successfully globbed the preceding directory name.
+ For each name we found, call glob_in_dir on it and FILENAME,
+ appending the results to PGLOB. */
+ for (i = 0; i < dirs.gl_pathc; ++i)
+ {
+ int old_pathc;
+
+#ifdef SHELL
+ {
+ /* Make globbing interruptible in the bash shell. */
+ extern int interrupt_state;
+
+ if (interrupt_state)
+ {
+ globfree (&dirs);
+ return GLOB_ABORTED;
+ }
+ }
+#endif /* SHELL. */
+
+ old_pathc = pglob->gl_pathc;
+ status = glob_in_dir (filename, dirs.gl_pathv[i],
+ ((flags | GLOB_APPEND)
+ & ~(GLOB_NOCHECK | GLOB_NOMAGIC)),
+ errfunc, pglob);
+ if (status == GLOB_NOMATCH)
+ /* No matches in this directory. Try the next. */
+ continue;
+
+ if (status != 0)
+ {
+ globfree (&dirs);
+ globfree (pglob);
+ pglob->gl_pathc = 0;
+ return status;
+ }
+
+ /* Stick the directory on the front of each name. */
+ if (prefix_array (dirs.gl_pathv[i],
+ &pglob->gl_pathv[old_pathc + pglob->gl_offs],
+ pglob->gl_pathc - old_pathc))
+ {
+ globfree (&dirs);
+ globfree (pglob);
+ pglob->gl_pathc = 0;
+ return GLOB_NOSPACE;
+ }
+ }
+
+ flags |= GLOB_MAGCHAR;
+
+ /* We have ignored the GLOB_NOCHECK flag in the `glob_in_dir' calls.
+ But if we have not found any matching entry and the GLOB_NOCHECK
+ flag was set we must return the input pattern itself. */
+ if (pglob->gl_pathc + pglob->gl_offs == oldcount)
+ {
+ /* No matches. */
+ if (flags & GLOB_NOCHECK)
+ {
+ int newcount = pglob->gl_pathc + pglob->gl_offs;
+ char **new_gl_pathv;
+
+ new_gl_pathv = (char **) realloc (pglob->gl_pathv,
+ (newcount + 2)
+ * sizeof (char *));
+ if (new_gl_pathv == NULL)
+ {
+ globfree (&dirs);
+ return GLOB_NOSPACE;
+ }
+ pglob->gl_pathv = new_gl_pathv;
+
+ pglob->gl_pathv[newcount] = __strdup (pattern);
+ if (pglob->gl_pathv[newcount] == NULL)
+ {
+ globfree (&dirs);
+ globfree (pglob);
+ pglob->gl_pathc = 0;
+ return GLOB_NOSPACE;
+ }
+
+ ++pglob->gl_pathc;
+ ++newcount;
+
+ pglob->gl_pathv[newcount] = NULL;
+ pglob->gl_flags = flags;
+ }
+ else
+ {
+ globfree (&dirs);
+ return GLOB_NOMATCH;
+ }
+ }
+
+ globfree (&dirs);
+ }
+ else
+ {
+ int old_pathc = pglob->gl_pathc;
+
+ status = glob_in_dir (filename, dirname, flags, errfunc, pglob);
+ if (status != 0)
+ return status;
+
+ if (dirlen > 0)
+ {
+ /* Stick the directory on the front of each name. */
+ if (prefix_array (dirname,
+ &pglob->gl_pathv[old_pathc + pglob->gl_offs],
+ pglob->gl_pathc - old_pathc))
+ {
+ globfree (pglob);
+ pglob->gl_pathc = 0;
+ return GLOB_NOSPACE;
+ }
+ }
+ }
+
+ if (flags & GLOB_MARK)
+ {
+ /* Append slashes to directory names. */
+ size_t i;
+ struct stat st;
+ struct_stat64 st64;
+
+ for (i = oldcount; i < pglob->gl_pathc + pglob->gl_offs; ++i)
+ if (((flags & GLOB_ALTDIRFUNC)
+ ? ((*pglob->gl_stat) (pglob->gl_pathv[i], &st) == 0
+ && S_ISDIR (st.st_mode))
+ : (__stat64 (pglob->gl_pathv[i], &st64) == 0
+ && S_ISDIR (st64.st_mode))))
+ {
+ size_t len = strlen (pglob->gl_pathv[i]) + 2;
+ char *new = realloc (pglob->gl_pathv[i], len);
+ if (new == NULL)
+ {
+ globfree (pglob);
+ pglob->gl_pathc = 0;
+ return GLOB_NOSPACE;
+ }
+ strcpy (&new[len - 2], "/");
+ pglob->gl_pathv[i] = new;
+ }
+ }
+
+ if (!(flags & GLOB_NOSORT))
+ {
+ /* Sort the vector. */
+ qsort (&pglob->gl_pathv[oldcount],
+ pglob->gl_pathc + pglob->gl_offs - oldcount,
+ sizeof (char *), collated_compare);
+ }
+
+ return 0;
+}
+#if defined _LIBC && !defined glob
+libc_hidden_def (glob)
+#endif
+
+
+#if !defined _LIBC || !defined GLOB_ONLY_P
+
+/* Free storage allocated in PGLOB by a previous `glob' call. */
+void
+globfree (pglob)
+ register glob_t *pglob;
+{
+ if (pglob->gl_pathv != NULL)
+ {
+ size_t i;
+ for (i = 0; i < pglob->gl_pathc; ++i)
+ if (pglob->gl_pathv[pglob->gl_offs + i] != NULL)
+ free (pglob->gl_pathv[pglob->gl_offs + i]);
+ free (pglob->gl_pathv);
+ pglob->gl_pathv = NULL;
+ }
+}
+#if defined _LIBC && !defined globfree
+libc_hidden_def (globfree)
+#endif
+
+
+/* Do a collated comparison of A and B. */
+static int
+collated_compare (const void *a, const void *b)
+{
+ const char *const s1 = *(const char *const * const) a;
+ const char *const s2 = *(const char *const * const) b;
+
+ if (s1 == s2)
+ return 0;
+ if (s1 == NULL)
+ return 1;
+ if (s2 == NULL)
+ return -1;
+ return strcoll (s1, s2);
+}
+
+
+/* Prepend DIRNAME to each of N members of ARRAY, replacing ARRAY's
+ elements in place. Return nonzero if out of memory, zero if successful.
+ A slash is inserted between DIRNAME and each elt of ARRAY,
+ unless DIRNAME is just "/". Each old element of ARRAY is freed. */
+static int
+prefix_array (const char *dirname, char **array, size_t n)
+{
+ register size_t i;
+ size_t dirlen = strlen (dirname);
+#if defined __MSDOS__ || defined WINDOWS32
+ int sep_char = '/';
+# define DIRSEP_CHAR sep_char
+#else
+# define DIRSEP_CHAR '/'
+#endif
+
+ if (dirlen == 1 && dirname[0] == '/')
+ /* DIRNAME is just "/", so normal prepending would get us "//foo".
+ We want "/foo" instead, so don't prepend any chars from DIRNAME. */
+ dirlen = 0;
+#if defined __MSDOS__ || defined WINDOWS32
+ else if (dirlen > 1)
+ {
+ if (dirname[dirlen - 1] == '/' && dirname[dirlen - 2] == ':')
+ /* DIRNAME is "d:/". Don't prepend the slash from DIRNAME. */
+ --dirlen;
+ else if (dirname[dirlen - 1] == ':')
+ {
+ /* DIRNAME is "d:". Use `:' instead of `/'. */
+ --dirlen;
+ sep_char = ':';
+ }
+ }
+#endif
+
+ for (i = 0; i < n; ++i)
+ {
+ size_t eltlen = strlen (array[i]) + 1;
+ char *new = (char *) malloc (dirlen + 1 + eltlen);
+ if (new == NULL)
+ {
+ while (i > 0)
+ free (array[--i]);
+ return 1;
+ }
+
+ {
+ char *endp = mempcpy (new, dirname, dirlen);
+ *endp++ = DIRSEP_CHAR;
+ mempcpy (endp, array[i], eltlen);
+ }
+ free (array[i]);
+ array[i] = new;
+ }
+
+ return 0;
+}
+
+
+/* We must not compile this function twice. */
+#if !defined _LIBC || !defined NO_GLOB_PATTERN_P
+/* Return nonzero if PATTERN contains any metacharacters.
+ Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
+int
+__glob_pattern_p (pattern, quote)
+ const char *pattern;
+ int quote;
+{
+ register const char *p;
+ int open = 0;
+
+ for (p = pattern; *p != '\0'; ++p)
+ switch (*p)
+ {
+ case '?':
+ case '*':
+ return 1;
+
+ case '\\':
+ if (quote && p[1] != '\0')
+ ++p;
+ break;
+
+ case '[':
+ open = 1;
+ break;
+
+ case ']':
+ if (open)
+ return 1;
+ break;
+ }
+
+ return 0;
+}
+# ifdef _LIBC
+weak_alias (__glob_pattern_p, glob_pattern_p)
+# endif
+#endif
+
+#endif /* !GLOB_ONLY_P */
+
+
+/* We put this in a separate function mainly to allow the memory
+ allocated with alloca to be recycled. */
+#if !defined _LIBC || !defined GLOB_ONLY_P
+static int
+link_exists_p (const char *dir, size_t dirlen, const char *fname,
+ glob_t *pglob, int flags)
+{
+ size_t fnamelen = strlen (fname);
+ char *fullname = (char *) __alloca (dirlen + 1 + fnamelen + 1);
+ struct stat st;
+ struct_stat64 st64;
+
+ mempcpy (mempcpy (mempcpy (fullname, dir, dirlen), "/", 1),
+ fname, fnamelen + 1);
+
+ return (((flags & GLOB_ALTDIRFUNC)
+ ? (*pglob->gl_stat) (fullname, &st)
+ : __stat64 (fullname, &st64)) == 0);
+}
+#endif
+
+
+/* Like `glob', but PATTERN is a final pathname component,
+ and matches are searched for in DIRECTORY.
+ The GLOB_NOSORT bit in FLAGS is ignored. No sorting is ever done.
+ The GLOB_APPEND flag is assumed to be set (always appends). */
+static int
+glob_in_dir (const char *pattern, const char *directory, int flags,
+ int (*errfunc) (const char *, int),
+ glob_t *pglob)
+{
+ size_t dirlen = strlen (directory);
+ void *stream = NULL;
+ struct globnames
+ {
+ struct globnames *next;
+ size_t count;
+ char *name[64];
+ };
+#define INITIAL_COUNT sizeof (init_names.name) / sizeof (init_names.name[0])
+ struct globnames init_names;
+ struct globnames *names = &init_names;
+ struct globnames *names_alloca = &init_names;
+ size_t nfound = 0;
+ size_t allocasize = sizeof (init_names);
+ size_t cur = 0;
+ int meta;
+ int save;
+
+ init_names.next = NULL;
+ init_names.count = INITIAL_COUNT;
+
+ meta = __glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE));
+ if (meta == 0 && (flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
+ {
+ /* We need not do any tests. The PATTERN contains no meta
+ characters and we must not return an error therefore the
+ result will always contain exactly one name. */
+ flags |= GLOB_NOCHECK;
+ }
+ else if (meta == 0 &&
+ ((flags & GLOB_NOESCAPE) || strchr (pattern, '\\') == NULL))
+ {
+ /* Since we use the normal file functions we can also use stat()
+ to verify the file is there. */
+ struct stat st;
+ struct_stat64 st64;
+ size_t patlen = strlen (pattern);
+ char *fullname = (char *) __alloca (dirlen + 1 + patlen + 1);
+
+ mempcpy (mempcpy (mempcpy (fullname, directory, dirlen),
+ "/", 1),
+ pattern, patlen + 1);
+ if (((flags & GLOB_ALTDIRFUNC)
+ ? (*pglob->gl_stat) (fullname, &st)
+ : __stat64 (fullname, &st64)) == 0)
+ /* We found this file to be existing. Now tell the rest
+ of the function to copy this name into the result. */
+ flags |= GLOB_NOCHECK;
+ }
+ else
+ {
+ if (pattern[0] == '\0')
+ {
+ /* This is a special case for matching directories like in
+ "*a/". */
+ names->name[cur] = (char *) malloc (1);
+ if (names->name[cur] == NULL)
+ goto memory_error;
+ *names->name[cur++] = '\0';
+ nfound = 1;
+ meta = 0;
+ }
+ else
+ {
+ stream = ((flags & GLOB_ALTDIRFUNC)
+ ? (*pglob->gl_opendir) (directory)
+ : opendir (directory));
+ if (stream == NULL)
+ {
+ if (errno != ENOTDIR
+ && ((errfunc != NULL && (*errfunc) (directory, errno))
+ || (flags & GLOB_ERR)))
+ return GLOB_ABORTED;
+ meta = 0;
+ }
+ else
+ {
+ int fnm_flags = ((!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0)
+ | ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)
+#if defined _AMIGA || defined VMS
+ | FNM_CASEFOLD
+#endif
+ );
+ flags |= GLOB_MAGCHAR;
+
+ while (1)
+ {
+ const char *name;
+ size_t len;
+#if defined _LIBC && !defined COMPILE_GLOB64
+ struct dirent64 *d;
+ union
+ {
+ struct dirent64 d64;
+ char room [offsetof (struct dirent64, d_name[0])
+ + NAME_MAX + 1];
+ }
+ d64buf;
+
+ if (flags & GLOB_ALTDIRFUNC)
+ {
+ struct dirent *d32 = (*pglob->gl_readdir) (stream);
+ if (d32 != NULL)
+ {
+ CONVERT_DIRENT_DIRENT64 (&d64buf.d64, d32);
+ d = &d64buf.d64;
+ }
+ else
+ d = NULL;
+ }
+ else
+ d = __readdir64 (stream);
+#else
+ struct dirent *d = ((flags & GLOB_ALTDIRFUNC)
+ ? ((struct dirent *)
+ (*pglob->gl_readdir) (stream))
+ : __readdir (stream));
+#endif
+ if (d == NULL)
+ break;
+ if (! REAL_DIR_ENTRY (d))
+ continue;
+
+ /* If we shall match only directories use the information
+ provided by the dirent call if possible. */
+ if ((flags & GLOB_ONLYDIR) && !DIRENT_MIGHT_BE_DIR (d))
+ continue;
+
+ name = d->d_name;
+
+ if (fnmatch (pattern, name, fnm_flags) == 0)
+ {
+ /* If the file we found is a symlink we have to
+ make sure the target file exists. */
+ if (!DIRENT_MIGHT_BE_SYMLINK (d)
+ || link_exists_p (directory, dirlen, name, pglob,
+ flags))
+ {
+ if (cur == names->count)
+ {
+ struct globnames *newnames;
+ size_t count = names->count * 2;
+ size_t size = (sizeof (struct globnames)
+ + ((count - INITIAL_COUNT)
+ * sizeof (char *)));
+ allocasize += size;
+ if (__libc_use_alloca (allocasize))
+ newnames = names_alloca = __alloca (size);
+ else if ((newnames = malloc (size))
+ == NULL)
+ goto memory_error;
+ newnames->count = count;
+ newnames->next = names;
+ names = newnames;
+ cur = 0;
+ }
+ len = NAMLEN (d);
+ names->name[cur] = (char *) malloc (len + 1);
+ if (names->name[cur] == NULL)
+ goto memory_error;
+ *((char *) mempcpy (names->name[cur++], name, len))
+ = '\0';
+ ++nfound;
+ }
+ }
+ }
+ }
+ }
+ }
+
+ if (nfound == 0 && (flags & GLOB_NOCHECK))
+ {
+ size_t len = strlen (pattern);
+ nfound = 1;
+ names->name[cur] = (char *) malloc (len + 1);
+ if (names->name[cur] == NULL)
+ goto memory_error;
+ *((char *) mempcpy (names->name[cur++], pattern, len)) = '\0';
+ }
+
+ int result = GLOB_NOMATCH;
+ if (nfound != 0)
+ {
+ result = 0;
+
+ char **new_gl_pathv;
+ new_gl_pathv
+ = (char **) realloc (pglob->gl_pathv,
+ (pglob->gl_pathc + pglob->gl_offs + nfound + 1)
+ * sizeof (char *));
+ if (new_gl_pathv == NULL)
+ {
+ memory_error:
+ while (1)
+ {
+ struct globnames *old = names;
+ for (size_t i = 0; i < cur; ++i)
+ free (names->name[i]);
+ names = names->next;
+ /* NB: we will not leak memory here if we exit without
+ freeing the current block assigned to OLD. At least
+ the very first block is always allocated on the stack
+ and this is the block assigned to OLD here. */
+ if (names == NULL)
+ {
+ assert (old == &init_names);
+ break;
+ }
+ cur = names->count;
+ if (old == names_alloca)
+ names_alloca = names;
+ else
+ free (old);
+ }
+ result = GLOB_NOSPACE;
+ }
+ else
+ {
+ while (1)
+ {
+ struct globnames *old = names;
+ for (size_t i = 0; i < cur; ++i)
+ new_gl_pathv[pglob->gl_offs + pglob->gl_pathc++]
+ = names->name[i];
+ names = names->next;
+ /* NB: we will not leak memory here if we exit without
+ freeing the current block assigned to OLD. At least
+ the very first block is always allocated on the stack
+ and this is the block assigned to OLD here. */
+ if (names == NULL)
+ {
+ assert (old == &init_names);
+ break;
+ }
+ cur = names->count;
+ if (old == names_alloca)
+ names_alloca = names;
+ else
+ free (old);
+ }
+
+ pglob->gl_pathv = new_gl_pathv;
+
+ pglob->gl_pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
+
+ pglob->gl_flags = flags;
+ }
+ }
+
+ if (stream != NULL)
+ {
+ save = errno;
+ if (flags & GLOB_ALTDIRFUNC)
+ (*pglob->gl_closedir) (stream);
+ else
+ closedir (stream);
+ __set_errno (save);
+ }
+
+ return result;
+}