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62605cbfcb
* include/inline-hashtab.h (htab_delete): Likewise. * libio/freopen.c (freopen): Likewise. * libio/freopen64.c (freopen64): Likewise. * locale/programs/ld-collate.c (collate_read): Likewise. * misc/fstab.c (libc_freeres_fn): Likewise. * posix/glob.c (globfree): Likewise.
1521 lines
38 KiB
C
1521 lines
38 KiB
C
/* Copyright (C) 1991-2002, 2003, 2004, 2005, 2006, 2007, 2008
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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||
License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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||
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||
The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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||
Lesser General Public License for more details.
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||
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||
You should have received a copy of the GNU Lesser General Public
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||
License along with the GNU C Library; if not, write to the Free
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||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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||
02111-1307 USA. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <glob.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stddef.h>
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/* Outcomment the following line for production quality code. */
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/* #define NDEBUG 1 */
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||
#include <assert.h>
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||
#include <stdio.h> /* Needed on stupid SunOS for assert. */
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||
#if !defined _LIBC || !defined GLOB_ONLY_P
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||
#if defined HAVE_UNISTD_H || defined _LIBC
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# include <unistd.h>
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# ifndef POSIX
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# ifdef _POSIX_VERSION
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# define POSIX
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# endif
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# endif
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#endif
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#include <pwd.h>
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#include <errno.h>
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#ifndef __set_errno
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# define __set_errno(val) errno = (val)
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#endif
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#if defined HAVE_DIRENT_H || defined __GNU_LIBRARY__
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# include <dirent.h>
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# define NAMLEN(dirent) strlen((dirent)->d_name)
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#else
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# define dirent direct
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# define NAMLEN(dirent) (dirent)->d_namlen
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# ifdef HAVE_SYS_NDIR_H
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# include <sys/ndir.h>
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# endif
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# ifdef HAVE_SYS_DIR_H
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# include <sys/dir.h>
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# endif
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# ifdef HAVE_NDIR_H
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# include <ndir.h>
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# endif
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# ifdef HAVE_VMSDIR_H
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# include "vmsdir.h"
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# endif /* HAVE_VMSDIR_H */
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#endif
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/* In GNU systems, <dirent.h> defines this macro for us. */
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#ifdef _D_NAMLEN
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# undef NAMLEN
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# define NAMLEN(d) _D_NAMLEN(d)
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#endif
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/* When used in the GNU libc the symbol _DIRENT_HAVE_D_TYPE is available
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if the `d_type' member for `struct dirent' is available.
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HAVE_STRUCT_DIRENT_D_TYPE plays the same role in GNULIB. */
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#if defined _DIRENT_HAVE_D_TYPE || defined HAVE_STRUCT_DIRENT_D_TYPE
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/* True if the directory entry D must be of type T. */
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# define DIRENT_MUST_BE(d, t) ((d)->d_type == (t))
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/* True if the directory entry D might be a symbolic link. */
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# define DIRENT_MIGHT_BE_SYMLINK(d) \
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((d)->d_type == DT_UNKNOWN || (d)->d_type == DT_LNK)
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/* True if the directory entry D might be a directory. */
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# define DIRENT_MIGHT_BE_DIR(d) \
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((d)->d_type == DT_DIR || DIRENT_MIGHT_BE_SYMLINK (d))
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#else /* !HAVE_D_TYPE */
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# define DIRENT_MUST_BE(d, t) false
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# define DIRENT_MIGHT_BE_SYMLINK(d) true
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# define DIRENT_MIGHT_BE_DIR(d) true
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#endif /* HAVE_D_TYPE */
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/* If the system has the `struct dirent64' type we use it internally. */
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#if defined _LIBC && !defined COMPILE_GLOB64
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# if defined HAVE_DIRENT_H || defined __GNU_LIBRARY__
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# define CONVERT_D_NAMLEN(d64, d32)
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# else
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# define CONVERT_D_NAMLEN(d64, d32) \
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(d64)->d_namlen = (d32)->d_namlen;
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# endif
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# if (defined POSIX || defined WINDOWS32) && !defined __GNU_LIBRARY__
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# define CONVERT_D_INO(d64, d32)
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# else
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# define CONVERT_D_INO(d64, d32) \
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(d64)->d_ino = (d32)->d_ino;
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# endif
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# ifdef _DIRENT_HAVE_D_TYPE
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# define CONVERT_D_TYPE(d64, d32) \
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(d64)->d_type = (d32)->d_type;
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# else
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# define CONVERT_D_TYPE(d64, d32)
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# endif
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# define CONVERT_DIRENT_DIRENT64(d64, d32) \
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memcpy ((d64)->d_name, (d32)->d_name, NAMLEN (d32) + 1); \
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CONVERT_D_NAMLEN (d64, d32) \
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CONVERT_D_INO (d64, d32) \
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CONVERT_D_TYPE (d64, d32)
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#endif
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#if (defined POSIX || defined WINDOWS32) && !defined __GNU_LIBRARY__
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/* Posix does not require that the d_ino field be present, and some
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systems do not provide it. */
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# define REAL_DIR_ENTRY(dp) 1
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#else
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# define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
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#endif /* POSIX */
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#include <stdlib.h>
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#include <string.h>
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/* NAME_MAX is usually defined in <dirent.h> or <limits.h>. */
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#include <limits.h>
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#ifndef NAME_MAX
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# define NAME_MAX (sizeof (((struct dirent *) 0)->d_name))
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#endif
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#include <alloca.h>
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#ifdef _LIBC
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# undef strdup
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# define strdup(str) __strdup (str)
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# define sysconf(id) __sysconf (id)
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# define closedir(dir) __closedir (dir)
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# define opendir(name) __opendir (name)
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# define readdir(str) __readdir64 (str)
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# define getpwnam_r(name, bufp, buf, len, res) \
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__getpwnam_r (name, bufp, buf, len, res)
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# ifndef __stat64
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# define __stat64(fname, buf) __xstat64 (_STAT_VER, fname, buf)
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# endif
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# define struct_stat64 struct stat64
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#else /* !_LIBC */
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# include "getlogin_r.h"
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# include "mempcpy.h"
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# include "stat-macros.h"
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# include "strdup.h"
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# define __stat64(fname, buf) stat (fname, buf)
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# define struct_stat64 struct stat
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# define __stat(fname, buf) stat (fname, buf)
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# define __alloca alloca
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# define __readdir readdir
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# define __readdir64 readdir64
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# define __glob_pattern_p glob_pattern_p
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#endif /* _LIBC */
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#include <fnmatch.h>
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#ifdef _SC_GETPW_R_SIZE_MAX
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# define GETPW_R_SIZE_MAX() sysconf (_SC_GETPW_R_SIZE_MAX)
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#else
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# define GETPW_R_SIZE_MAX() (-1)
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#endif
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#ifdef _SC_LOGIN_NAME_MAX
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# define GET_LOGIN_NAME_MAX() sysconf (_SC_LOGIN_NAME_MAX)
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#else
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# define GET_LOGIN_NAME_MAX() (-1)
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#endif
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static const char *next_brace_sub (const char *begin, int flags) __THROW;
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#endif /* !defined _LIBC || !defined GLOB_ONLY_P */
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#ifndef attribute_hidden
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# define attribute_hidden
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#endif
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static int glob_in_dir (const char *pattern, const char *directory,
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int flags, int (*errfunc) (const char *, int),
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glob_t *pglob);
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extern int __glob_pattern_type (const char *pattern, int quote)
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attribute_hidden;
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#if !defined _LIBC || !defined GLOB_ONLY_P
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static int prefix_array (const char *prefix, char **array, size_t n) __THROW;
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static int collated_compare (const void *, const void *) __THROW;
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/* Find the end of the sub-pattern in a brace expression. */
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static const char *
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next_brace_sub (const char *cp, int flags)
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{
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unsigned int depth = 0;
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while (*cp != '\0')
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if ((flags & GLOB_NOESCAPE) == 0 && *cp == '\\')
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{
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if (*++cp == '\0')
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break;
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++cp;
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}
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else
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{
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if ((*cp == '}' && depth-- == 0) || (*cp == ',' && depth == 0))
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break;
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if (*cp++ == '{')
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depth++;
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}
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return *cp != '\0' ? cp : NULL;
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}
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#endif /* !defined _LIBC || !defined GLOB_ONLY_P */
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/* Do glob searching for PATTERN, placing results in PGLOB.
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The bits defined above may be set in FLAGS.
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If a directory cannot be opened or read and ERRFUNC is not nil,
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it is called with the pathname that caused the error, and the
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`errno' value from the failing call; if it returns non-zero
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`glob' returns GLOB_ABORTED; if it returns zero, the error is ignored.
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If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
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Otherwise, `glob' returns zero. */
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int
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#ifdef GLOB_ATTRIBUTE
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GLOB_ATTRIBUTE
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#endif
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glob (pattern, flags, errfunc, pglob)
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const char *pattern;
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int flags;
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int (*errfunc) (const char *, int);
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glob_t *pglob;
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{
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const char *filename;
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const char *dirname;
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size_t dirlen;
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int status;
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size_t oldcount;
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int meta;
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int dirname_modified;
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glob_t dirs;
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if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0)
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{
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__set_errno (EINVAL);
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return -1;
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}
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if (!(flags & GLOB_DOOFFS))
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/* Have to do this so `globfree' knows where to start freeing. It
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also makes all the code that uses gl_offs simpler. */
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pglob->gl_offs = 0;
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if (flags & GLOB_BRACE)
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{
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const char *begin;
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if (flags & GLOB_NOESCAPE)
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begin = strchr (pattern, '{');
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else
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{
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begin = pattern;
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while (1)
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{
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if (*begin == '\0')
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{
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begin = NULL;
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break;
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}
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if (*begin == '\\' && begin[1] != '\0')
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++begin;
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else if (*begin == '{')
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break;
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++begin;
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}
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}
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if (begin != NULL)
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{
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/* Allocate working buffer large enough for our work. Note that
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we have at least an opening and closing brace. */
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size_t firstc;
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char *alt_start;
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const char *p;
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const char *next;
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const char *rest;
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size_t rest_len;
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#ifdef __GNUC__
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char onealt[strlen (pattern) - 1];
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#else
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char *onealt = (char *) malloc (strlen (pattern) - 1);
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if (onealt == NULL)
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{
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if (!(flags & GLOB_APPEND))
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{
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pglob->gl_pathc = 0;
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pglob->gl_pathv = NULL;
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}
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return GLOB_NOSPACE;
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}
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#endif
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/* We know the prefix for all sub-patterns. */
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alt_start = mempcpy (onealt, pattern, begin - pattern);
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/* Find the first sub-pattern and at the same time find the
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rest after the closing brace. */
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next = next_brace_sub (begin + 1, flags);
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if (next == NULL)
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{
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/* It is an illegal expression. */
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#ifndef __GNUC__
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free (onealt);
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#endif
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return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
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}
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/* Now find the end of the whole brace expression. */
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rest = next;
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while (*rest != '}')
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{
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rest = next_brace_sub (rest + 1, flags);
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if (rest == NULL)
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{
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/* It is an illegal expression. */
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#ifndef __GNUC__
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free (onealt);
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#endif
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return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
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}
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}
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/* Please note that we now can be sure the brace expression
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is well-formed. */
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rest_len = strlen (++rest) + 1;
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/* We have a brace expression. BEGIN points to the opening {,
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NEXT points past the terminator of the first element, and END
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points past the final }. We will accumulate result names from
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recursive runs for each brace alternative in the buffer using
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GLOB_APPEND. */
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if (!(flags & GLOB_APPEND))
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{
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/* This call is to set a new vector, so clear out the
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vector so we can append to it. */
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pglob->gl_pathc = 0;
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pglob->gl_pathv = NULL;
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}
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firstc = pglob->gl_pathc;
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p = begin + 1;
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while (1)
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{
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int result;
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/* Construct the new glob expression. */
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mempcpy (mempcpy (alt_start, p, next - p), rest, rest_len);
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result = glob (onealt,
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((flags & ~(GLOB_NOCHECK | GLOB_NOMAGIC))
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| GLOB_APPEND), errfunc, pglob);
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|
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/* If we got an error, return it. */
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if (result && result != GLOB_NOMATCH)
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{
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#ifndef __GNUC__
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free (onealt);
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#endif
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if (!(flags & GLOB_APPEND))
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{
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globfree (pglob);
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pglob->gl_pathc = 0;
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}
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return result;
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}
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|
||
if (*next == '}')
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/* We saw the last entry. */
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break;
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p = next + 1;
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next = next_brace_sub (p, flags);
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assert (next != NULL);
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}
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|
||
#ifndef __GNUC__
|
||
free (onealt);
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||
#endif
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|
||
if (pglob->gl_pathc != firstc)
|
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/* We found some entries. */
|
||
return 0;
|
||
else if (!(flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
|
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return GLOB_NOMATCH;
|
||
}
|
||
}
|
||
|
||
/* Find the filename. */
|
||
filename = strrchr (pattern, '/');
|
||
#if defined __MSDOS__ || defined WINDOWS32
|
||
/* The case of "d:pattern". Since `:' is not allowed in
|
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file names, we can safely assume that wherever it
|
||
happens in pattern, it signals the filename part. This
|
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is so we could some day support patterns like "[a-z]:foo". */
|
||
if (filename == NULL)
|
||
filename = strchr (pattern, ':');
|
||
#endif /* __MSDOS__ || WINDOWS32 */
|
||
dirname_modified = 0;
|
||
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
|
||
|| (filename == pattern + 1 && pattern[0] == '\\'
|
||
&& (flags & GLOB_NOESCAPE) == 0))
|
||
{
|
||
/* "/pattern" or "\\/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 orig_flags = flags;
|
||
if (!(flags & GLOB_NOESCAPE) && dirname[dirlen - 1] == '\\')
|
||
{
|
||
/* "pattern\\/". Remove the final backslash if it hasn't
|
||
been quoted. */
|
||
char *p = (char *) &dirname[dirlen - 1];
|
||
|
||
while (p > dirname && p[-1] == '\\') --p;
|
||
if ((&dirname[dirlen] - p) & 1)
|
||
{
|
||
*(char *) &dirname[--dirlen] = '\0';
|
||
flags &= ~(GLOB_NOCHECK | GLOB_NOMAGIC);
|
||
}
|
||
}
|
||
int val = glob (dirname, flags | GLOB_MARK, errfunc, pglob);
|
||
if (val == 0)
|
||
pglob->gl_flags = ((pglob->gl_flags & ~GLOB_MARK)
|
||
| (flags & GLOB_MARK));
|
||
else if (val == GLOB_NOMATCH && flags != orig_flags)
|
||
{
|
||
/* Make sure globfree (&dirs); is a nop. */
|
||
dirs.gl_pathv = NULL;
|
||
flags = orig_flags;
|
||
oldcount = pglob->gl_pathc + pglob->gl_offs;
|
||
goto no_matches;
|
||
}
|
||
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] == '/'
|
||
|| (!(flags & GLOB_NOESCAPE) && dirname[1] == '\\'
|
||
&& (dirname[2] == '\0' || dirname[2] == '/')))
|
||
{
|
||
/* 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;
|
||
dirlen = strlen (dirname);
|
||
}
|
||
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;
|
||
dirlen += home_len - 1;
|
||
}
|
||
dirname_modified = 1;
|
||
}
|
||
# if !defined _AMIGA && !defined WINDOWS32
|
||
else
|
||
{
|
||
char *end_name = strchr (dirname, '/');
|
||
const char *user_name;
|
||
const char *home_dir;
|
||
char *unescape = NULL;
|
||
|
||
if (!(flags & GLOB_NOESCAPE))
|
||
{
|
||
if (end_name == NULL)
|
||
{
|
||
unescape = strchr (dirname, '\\');
|
||
if (unescape)
|
||
end_name = strchr (unescape, '\0');
|
||
}
|
||
else
|
||
unescape = memchr (dirname, '\\', end_name - dirname);
|
||
}
|
||
if (end_name == NULL)
|
||
user_name = dirname + 1;
|
||
else
|
||
{
|
||
char *newp;
|
||
newp = (char *) __alloca (end_name - dirname);
|
||
if (unescape != NULL)
|
||
{
|
||
char *p = mempcpy (newp, dirname + 1,
|
||
unescape - dirname - 1);
|
||
char *q = unescape;
|
||
while (*q != '\0')
|
||
{
|
||
if (*q == '\\')
|
||
{
|
||
if (q[1] == '\0')
|
||
{
|
||
/* "~fo\\o\\" unescape to user_name "foo\\",
|
||
but "~fo\\o\\/" unescape to user_name
|
||
"foo". */
|
||
if (filename == NULL)
|
||
*p++ = '\\';
|
||
break;
|
||
}
|
||
++q;
|
||
}
|
||
*p++ = *q++;
|
||
}
|
||
*p = '\0';
|
||
}
|
||
else
|
||
*((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;
|
||
dirlen = home_len + rest_len;
|
||
dirname_modified = 1;
|
||
}
|
||
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)
|
||
|| (((__builtin_expect (flags & GLOB_ALTDIRFUNC, 0))
|
||
? ((*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;
|
||
|
||
if (flags & GLOB_MARK)
|
||
{
|
||
char *p;
|
||
pglob->gl_pathv[newcount] = malloc (dirlen + 2);
|
||
if (pglob->gl_pathv[newcount] == NULL)
|
||
goto nospace;
|
||
p = mempcpy (pglob->gl_pathv[newcount], dirname, dirlen);
|
||
p[0] = '/';
|
||
p[1] = '\0';
|
||
}
|
||
else
|
||
{
|
||
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;
|
||
}
|
||
|
||
meta = __glob_pattern_type (dirname, !(flags & GLOB_NOESCAPE));
|
||
/* meta is 1 if correct glob pattern containing metacharacters.
|
||
If meta has bit (1 << 2) set, it means there was an unterminated
|
||
[ which we handle the same, using fnmatch. Broken unterminated
|
||
pattern bracket expressions ought to be rare enough that it is
|
||
not worth special casing them, fnmatch will do the right thing. */
|
||
if (meta & 5)
|
||
{
|
||
/* The directory name contains metacharacters, so we
|
||
have to glob for the directory, and then glob for
|
||
the pattern in each directory found. */
|
||
size_t i;
|
||
|
||
if (!(flags & GLOB_NOESCAPE) && dirlen > 0 && dirname[dirlen - 1] == '\\')
|
||
{
|
||
/* "foo\\/bar". Remove the final backslash from dirname
|
||
if it has not been quoted. */
|
||
char *p = (char *) &dirname[dirlen - 1];
|
||
|
||
while (p > dirname && p[-1] == '\\') --p;
|
||
if ((&dirname[dirlen] - p) & 1)
|
||
*(char *) &dirname[--dirlen] = '\0';
|
||
}
|
||
|
||
if (__builtin_expect ((flags & GLOB_ALTDIRFUNC) != 0, 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_NOESCAPE
|
||
| GLOB_ALTDIRFUNC))
|
||
| GLOB_NOSORT | GLOB_ONLYDIR),
|
||
errfunc, &dirs);
|
||
if (status != 0)
|
||
{
|
||
if ((flags & GLOB_NOCHECK) == 0 || status != GLOB_NOMATCH)
|
||
return status;
|
||
goto no_matches;
|
||
}
|
||
|
||
/* 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:
|
||
/* 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;
|
||
int orig_flags = flags;
|
||
|
||
if (meta & 2)
|
||
{
|
||
char *p = strchr (dirname, '\\'), *q;
|
||
/* We need to unescape the dirname string. It is certainly
|
||
allocated by alloca, as otherwise filename would be NULL
|
||
or dirname wouldn't contain backslashes. */
|
||
q = p;
|
||
do
|
||
{
|
||
if (*p == '\\')
|
||
{
|
||
*q = *++p;
|
||
--dirlen;
|
||
}
|
||
else
|
||
*q = *p;
|
||
++q;
|
||
}
|
||
while (*p++ != '\0');
|
||
dirname_modified = 1;
|
||
}
|
||
if (dirname_modified)
|
||
flags &= ~(GLOB_NOCHECK | GLOB_NOMAGIC);
|
||
status = glob_in_dir (filename, dirname, flags, errfunc, pglob);
|
||
if (status != 0)
|
||
{
|
||
if (status == GLOB_NOMATCH && flags != orig_flags
|
||
&& pglob->gl_pathc + pglob->gl_offs == oldcount)
|
||
{
|
||
/* Make sure globfree (&dirs); is a nop. */
|
||
dirs.gl_pathv = NULL;
|
||
flags = orig_flags;
|
||
goto no_matches;
|
||
}
|
||
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 ((__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
|
||
? ((*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)
|
||
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
|
||
int
|
||
__glob_pattern_type (pattern, quote)
|
||
const char *pattern;
|
||
int quote;
|
||
{
|
||
register const char *p;
|
||
int ret = 0;
|
||
|
||
for (p = pattern; *p != '\0'; ++p)
|
||
switch (*p)
|
||
{
|
||
case '?':
|
||
case '*':
|
||
return 1;
|
||
|
||
case '\\':
|
||
if (quote)
|
||
{
|
||
if (p[1] != '\0')
|
||
++p;
|
||
ret |= 2;
|
||
}
|
||
break;
|
||
|
||
case '[':
|
||
ret |= 4;
|
||
break;
|
||
|
||
case ']':
|
||
if (ret & 4)
|
||
return 1;
|
||
break;
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/* 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;
|
||
{
|
||
return __glob_pattern_type (pattern, quote) == 1;
|
||
}
|
||
# 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
|
||
__attribute_noinline__
|
||
link_exists2_p (const char *dir, size_t dirlen, const char *fname,
|
||
glob_t *pglob
|
||
# ifndef _LIBC
|
||
, int flags
|
||
# endif
|
||
)
|
||
{
|
||
size_t fnamelen = strlen (fname);
|
||
char *fullname = (char *) __alloca (dirlen + 1 + fnamelen + 1);
|
||
struct stat st;
|
||
# ifndef _LIBC
|
||
struct_stat64 st64;
|
||
# endif
|
||
|
||
mempcpy (mempcpy (mempcpy (fullname, dir, dirlen), "/", 1),
|
||
fname, fnamelen + 1);
|
||
|
||
# ifdef _LIBC
|
||
return (*pglob->gl_stat) (fullname, &st) == 0;
|
||
# else
|
||
return ((__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
|
||
? (*pglob->gl_stat) (fullname, &st)
|
||
: __stat64 (fullname, &st64)) == 0);
|
||
# endif
|
||
}
|
||
# ifdef _LIBC
|
||
# define link_exists_p(dfd, dirname, dirnamelen, fname, pglob, flags) \
|
||
(__builtin_expect (flags & GLOB_ALTDIRFUNC, 0) \
|
||
? link_exists2_p (dirname, dirnamelen, fname, pglob) \
|
||
: ({ struct stat64 st64; \
|
||
__fxstatat64 (_STAT_VER, dfd, fname, &st64, 0) == 0; }))
|
||
# else
|
||
# define link_exists_p(dfd, dirname, dirnamelen, fname, pglob, flags) \
|
||
link_exists2_p (dirname, dirnamelen, fname, pglob, flags)
|
||
# endif
|
||
#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_type (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)
|
||
{
|
||
/* 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 ((__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
|
||
? (*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
|
||
{
|
||
stream = (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
|
||
? (*pglob->gl_opendir) (directory)
|
||
: opendir (directory));
|
||
if (stream == NULL)
|
||
{
|
||
if (errno != ENOTDIR
|
||
&& ((errfunc != NULL && (*errfunc) (directory, errno))
|
||
|| (flags & GLOB_ERR)))
|
||
return GLOB_ABORTED;
|
||
}
|
||
else
|
||
{
|
||
#ifdef _LIBC
|
||
int dfd = (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
|
||
? -1 : dirfd ((DIR *) stream));
|
||
#endif
|
||
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 (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0))
|
||
{
|
||
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 = (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
|
||
? ((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 (dfd, 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 (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0))
|
||
(*pglob->gl_closedir) (stream);
|
||
else
|
||
closedir (stream);
|
||
__set_errno (save);
|
||
}
|
||
|
||
return result;
|
||
}
|