This is a rebase of posix/glob.c from upstream (gnulib->glibc->rhel).
Relevent upstream commits:
7c477b57a31487eda516db02b9e04f22d1a6e6af posix/glob.c: update from gnulib
(This is the master commit to which we're syncing)
gnulib commit 98f034a0c2ba8917c96f363de1a8d66244e411da
(This is the gnulib commit to which glibc upstream sync'd)
Additional glibc upstream commits of note:
84f7ce84474c1648ce96884f1c91ca7b97ca3fc2 posix: Add glob64 with 64-bit time_t support
(just posix/glob.c and sysdeps/gnu/glob64-lstat-compat.c)
9a7ab0769b295cbf5232140401742a8f34bda3de hurd: Fix glob lstat compatibility
4883360415f1ed772ba44decc501d59deb17bdf0 posix: Sync glob code with gnulib
04986243d1af37ac0177ed2f9db0a066ebd2b212 Remove internal usage of extensible stat functions
ddc650e9b3dc916eab417ce9f79e67337b05035c Fix use-after-free in glob when expanding ~user (bug 25414)
diff -rup a/posix/glob-lstat-compat.c b/posix/glob-lstat-compat.c
--- a/posix/glob-lstat-compat.c 2018-08-01 01:10:47.000000000 -0400
+++ b/posix/glob-lstat-compat.c 2022-05-02 22:49:06.504676711 -0400
@@ -28,7 +28,8 @@
# define GLOB_ATTRIBUTE attribute_compat_text_section
/* Avoid calling gl_lstat with GLOB_ALTDIRFUNC. */
-# define GLOB_NO_LSTAT
+# define GLOB_LSTAT gl_stat
+# define GLOB_LSTAT64 __stat64
# include <posix/glob.c>
diff -rup a/posix/glob.c b/posix/glob.c
--- a/posix/glob.c 2022-05-03 14:37:52.959042051 -0400
+++ b/posix/glob.c 2022-05-02 22:49:18.655134696 -0400
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2018 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2022 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
@@ -13,11 +13,22 @@
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _LIBC
+
+/* Don't use __attribute__ __nonnull__ in this compilation unit. Otherwise gcc
+ optimizes away the pattern == NULL test below. */
+# define _GL_ARG_NONNULL(params)
+
+# include <libc-config.h>
+
+#endif
#include <glob.h>
#include <errno.h>
+#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdbool.h>
@@ -26,7 +37,7 @@
#include <assert.h>
#include <unistd.h>
-#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+#if defined _WIN32 && ! defined __CYGWIN__
# define WINDOWS32
#endif
@@ -46,30 +57,38 @@
# define sysconf(id) __sysconf (id)
# define closedir(dir) __closedir (dir)
# define opendir(name) __opendir (name)
+# undef dirfd
+# define dirfd(str) __dirfd (str)
# define readdir(str) __readdir64 (str)
# define getpwnam_r(name, bufp, buf, len, res) \
__getpwnam_r (name, bufp, buf, len, res)
-# ifndef __lstat64
-# define __lstat64(fname, buf) __lxstat64 (_STAT_VER, fname, buf)
+# define FLEXIBLE_ARRAY_MEMBER
+# ifndef struct_stat
+# define struct_stat struct stat
# endif
-# ifndef __stat64
-# define __stat64(fname, buf) __xstat64 (_STAT_VER, fname, buf)
+# ifndef struct_stat64
+# define struct_stat64 struct stat64
+# endif
+# ifndef GLOB_LSTAT
+# define GLOB_LSTAT gl_lstat
+# endif
+# ifndef GLOB_FSTATAT64
+# define GLOB_FSTATAT64 __fstatat64
# endif
-# define struct_stat64 struct stat64
-# define FLEXIBLE_ARRAY_MEMBER
# include <shlib-compat.h>
#else /* !_LIBC */
# define __glob glob
# define __getlogin_r(buf, len) getlogin_r (buf, len)
-# define __lstat64(fname, buf) lstat (fname, buf)
-# define __stat64(fname, buf) stat (fname, buf)
# define __fxstatat64(_, d, f, st, flag) fstatat (d, f, st, flag)
-# define struct_stat64 struct stat
# ifndef __MVS__
# define __alloca alloca
# endif
# define __readdir readdir
# define COMPILE_GLOB64
+# define struct_stat struct stat
+# define struct_stat64 struct stat
+# define GLOB_LSTAT gl_lstat
+# define GLOB_FSTATAT64 fstatat
#endif /* _LIBC */
#include <fnmatch.h>
@@ -80,7 +99,9 @@
static const char *next_brace_sub (const char *begin, int flags) __THROWNL;
-typedef uint_fast8_t dirent_type;
+/* The type of ((struct dirent *) 0)->d_type is 'unsigned char' on most
+ platforms, but 'unsigned int' in the mingw from mingw.org. */
+typedef uint_fast32_t dirent_type;
#if !defined _LIBC && !defined HAVE_STRUCT_DIRENT_D_TYPE
/* Any distinct values will do here.
@@ -119,9 +140,9 @@ readdir_result_type (struct readdir_resu
/* Construct an initializer for a struct readdir_result object from a
struct dirent *. No copy of the name is made. */
#define READDIR_RESULT_INITIALIZER(source) \
- { \
- source->d_name, \
- D_TYPE_TO_RESULT (source) \
+ { \
+ source->d_name, \
+ D_TYPE_TO_RESULT (source) \
}
/* Call gl_readdir on STREAM. This macro can be overridden to reduce
@@ -186,22 +207,15 @@ glob_lstat (glob_t *pglob, int flags, co
{
/* Use on glob-lstat-compat.c to provide a compat symbol which does not
use lstat / gl_lstat. */
-#ifdef GLOB_NO_LSTAT
-# define GL_LSTAT gl_stat
-# define LSTAT64 __stat64
-#else
-# define GL_LSTAT gl_lstat
-# define LSTAT64 __lstat64
-#endif
-
union
{
- struct stat st;
+ struct_stat st;
struct_stat64 st64;
} ust;
return (__glibc_unlikely (flags & GLOB_ALTDIRFUNC)
- ? pglob->GL_LSTAT (fullname, &ust.st)
- : LSTAT64 (fullname, &ust.st64));
+ ? pglob->GLOB_LSTAT (fullname, &ust.st)
+ : GLOB_FSTATAT64 (AT_FDCWD, fullname, &ust.st64,
+ AT_SYMLINK_NOFOLLOW));
}
/* Set *R = A + B. Return true if the answer is mathematically
@@ -211,7 +225,7 @@ glob_lstat (glob_t *pglob, int flags, co
static bool
size_add_wrapv (size_t a, size_t b, size_t *r)
{
-#if 5 <= __GNUC__ && !defined __ICC
+#if 7 <= __GNUC__ && !defined __ICC
return __builtin_add_overflow (a, b, r);
#else
*r = a + b;
@@ -228,8 +242,8 @@ glob_use_alloca (size_t alloca_used, siz
}
static int glob_in_dir (const char *pattern, const char *directory,
- int flags, int (*errfunc) (const char *, int),
- glob_t *pglob, size_t alloca_used);
+ int flags, int (*errfunc) (const char *, int),
+ glob_t *pglob, size_t alloca_used);
static int prefix_array (const char *prefix, char **array, size_t n) __THROWNL;
static int collated_compare (const void *, const void *) __THROWNL;
@@ -239,11 +253,12 @@ static int collated_compare (const void
static bool
is_dir (char const *filename, int flags, glob_t const *pglob)
{
- struct stat st;
+ struct_stat st;
struct_stat64 st64;
return (__glibc_unlikely (flags & GLOB_ALTDIRFUNC)
? pglob->gl_stat (filename, &st) == 0 && S_ISDIR (st.st_mode)
- : __stat64 (filename, &st64) == 0 && S_ISDIR (st64.st_mode));
+ : (GLOB_FSTATAT64 (AT_FDCWD, filename, &st64, 0) == 0
+ && S_ISDIR (st64.st_mode)));
}
/* Find the end of the sub-pattern in a brace expression. */
@@ -254,17 +269,17 @@ next_brace_sub (const char *cp, int flag
while (*cp != '\0')
if ((flags & GLOB_NOESCAPE) == 0 && *cp == '\\')
{
- if (*++cp == '\0')
- break;
- ++cp;
+ if (*++cp == '\0')
+ break;
+ ++cp;
}
else
{
- if ((*cp == '}' && depth-- == 0) || (*cp == ',' && depth == 0))
- break;
+ if ((*cp == '}' && depth-- == 0) || (*cp == ',' && depth == 0))
+ break;
- if (*cp++ == '{')
- depth++;
+ if (*cp++ == '{')
+ depth++;
}
return *cp != '\0' ? cp : NULL;
@@ -285,7 +300,7 @@ next_brace_sub (const char *cp, int flag
int
GLOB_ATTRIBUTE
__glob (const char *pattern, int flags, int (*errfunc) (const char *, int),
- glob_t *pglob)
+ glob_t *pglob)
{
const char *filename;
char *dirname = NULL;
@@ -319,22 +334,22 @@ __glob (const char *pattern, int flags,
{
pglob->gl_pathc = 0;
if (!(flags & GLOB_DOOFFS))
- pglob->gl_pathv = NULL;
+ pglob->gl_pathv = NULL;
else
- {
- size_t i;
+ {
+ size_t i;
- if (pglob->gl_offs >= ~((size_t) 0) / sizeof (char *))
- return GLOB_NOSPACE;
+ if (pglob->gl_offs >= ~((size_t) 0) / sizeof (char *))
+ return GLOB_NOSPACE;
- 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;
- }
+ 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;
+ }
}
if (flags & GLOB_BRACE)
@@ -342,129 +357,129 @@ __glob (const char *pattern, int flags,
const char *begin;
if (flags & GLOB_NOESCAPE)
- begin = strchr (pattern, '{');
+ 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;
- }
- }
+ {
+ 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;
- char *onealt;
- size_t pattern_len = strlen (pattern) - 1;
- int alloca_onealt = glob_use_alloca (alloca_used, pattern_len);
- if (alloca_onealt)
- onealt = alloca_account (pattern_len, alloca_used);
- else
- {
- onealt = malloc (pattern_len);
- if (onealt == NULL)
- return GLOB_NOSPACE;
- }
-
- /* 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 invalid expression. */
- illegal_brace:
- if (__glibc_unlikely (!alloca_onealt))
- free (onealt);
- flags &= ~GLOB_BRACE;
- goto no_brace;
- }
-
- /* 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. */
- goto illegal_brace;
- }
- /* 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. */
- 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)
- {
- if (__glibc_unlikely (!alloca_onealt))
- free (onealt);
- 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);
- }
-
- if (__glibc_unlikely (!alloca_onealt))
- free (onealt);
-
- if (pglob->gl_pathc != firstc)
- /* We found some entries. */
- return 0;
- else if (!(flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
- return GLOB_NOMATCH;
- }
+ {
+ /* 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;
+ char *onealt;
+ size_t pattern_len = strlen (pattern) - 1;
+ int alloca_onealt = glob_use_alloca (alloca_used, pattern_len);
+ if (alloca_onealt)
+ onealt = alloca_account (pattern_len, alloca_used);
+ else
+ {
+ onealt = malloc (pattern_len);
+ if (onealt == NULL)
+ return GLOB_NOSPACE;
+ }
+
+ /* 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 invalid expression. */
+ illegal_brace:
+ if (__glibc_unlikely (!alloca_onealt))
+ free (onealt);
+ flags &= ~GLOB_BRACE;
+ goto no_brace;
+ }
+
+ /* 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. */
+ goto illegal_brace;
+ }
+ /* 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. */
+ 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)
+ {
+ if (__glibc_unlikely (!alloca_onealt))
+ free (onealt);
+ 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);
+ }
+
+ if (__glibc_unlikely (!alloca_onealt))
+ free (onealt);
+
+ if (pglob->gl_pathc != firstc)
+ /* We found some entries. */
+ return 0;
+ else if (!(flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
+ return GLOB_NOMATCH;
+ }
}
no_brace:
@@ -486,33 +501,33 @@ __glob (const char *pattern, int flags,
if (filename == NULL)
{
/* This can mean two things: a simple name or "~name". The latter
- case is nothing but a notation for a directory. */
+ case is nothing but a notation for a directory. */
if ((flags & (GLOB_TILDE|GLOB_TILDE_CHECK)) && pattern[0] == '~')
- {
- dirname = (char *) 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;
- }
+ {
+ dirname = (char *) 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
- {
- if (__glibc_unlikely (pattern[0] == '\0'))
- {
- dirs.gl_pathv = NULL;
- goto no_matches;
- }
-
- filename = pattern;
- dirname = (char *) ".";
- dirlen = 0;
- }
+ {
+ if (__glibc_unlikely (pattern[0] == '\0'))
+ {
+ dirs.gl_pathv = NULL;
+ goto no_matches;
+ }
+
+ filename = pattern;
+ dirname = (char *) ".";
+ dirlen = 0;
+ }
}
else if (filename == pattern
- || (filename == pattern + 1 && pattern[0] == '\\'
- && (flags & GLOB_NOESCAPE) == 0))
+ || (filename == pattern + 1 && pattern[0] == '\\'
+ && (flags & GLOB_NOESCAPE) == 0))
{
/* "/pattern" or "\\/pattern". */
dirname = (char *) "/";
@@ -525,32 +540,32 @@ __glob (const char *pattern, int flags,
dirlen = filename - pattern;
#if defined __MSDOS__ || defined WINDOWS32
if (*filename == ':'
- || (filename > pattern + 1 && filename[-1] == ':'))
- {
- char *drive_spec;
-
- ++dirlen;
- drive_spec = __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.*/
- }
+ || (filename > pattern + 1 && filename[-1] == ':'))
+ {
+ char *drive_spec;
+
+ ++dirlen;
+ drive_spec = __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
if (glob_use_alloca (alloca_used, dirlen + 1))
- newp = alloca_account (dirlen + 1, alloca_used);
+ newp = alloca_account (dirlen + 1, alloca_used);
else
- {
- newp = malloc (dirlen + 1);
- if (newp == NULL)
- return GLOB_NOSPACE;
- malloc_dirname = 1;
- }
+ {
+ newp = malloc (dirlen + 1);
+ if (newp == NULL)
+ return GLOB_NOSPACE;
+ malloc_dirname = 1;
+ }
*((char *) mempcpy (newp, pattern, dirlen)) = '\0';
dirname = newp;
++filename;
@@ -566,363 +581,383 @@ __glob (const char *pattern, int flags,
if (filename[0] == '\0' && dirlen > 1 && !drive_root)
/* "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;
- }
- retval = val;
- goto out;
- }
+ {
+ 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;
+ }
+ retval = val;
+ goto out;
+ }
}
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. */
- char *home_dir = getenv ("HOME");
- int malloc_home_dir = 0;
- if (home_dir == NULL || home_dir[0] == '\0')
- {
+ || (!(flags & GLOB_NOESCAPE) && dirname[1] == '\\'
+ && (dirname[2] == '\0' || dirname[2] == '/')))
+ {
+ /* Look up home directory. */
+ char *home_dir = getenv ("HOME");
+ int malloc_home_dir = 0;
+ if (home_dir == NULL || home_dir[0] == '\0')
+ {
#ifdef WINDOWS32
- /* Windows NT defines HOMEDRIVE and HOMEPATH. But give
- preference to HOME, because the user can change HOME. */
- const char *home_drive = getenv ("HOMEDRIVE");
- const char *home_path = getenv ("HOMEPATH");
-
- if (home_drive != NULL && home_path != NULL)
- {
- size_t home_drive_len = strlen (home_drive);
- size_t home_path_len = strlen (home_path);
- char *mem = alloca (home_drive_len + home_path_len + 1);
-
- memcpy (mem, home_drive, home_drive_len);
- memcpy (mem + home_drive_len, home_path, home_path_len + 1);
- home_dir = mem;
- }
- else
- home_dir = "c:/users/default"; /* poor default */
+ /* Windows NT defines HOMEDRIVE and HOMEPATH. But give
+ preference to HOME, because the user can change HOME. */
+ const char *home_drive = getenv ("HOMEDRIVE");
+ const char *home_path = getenv ("HOMEPATH");
+
+ if (home_drive != NULL && home_path != NULL)
+ {
+ size_t home_drive_len = strlen (home_drive);
+ size_t home_path_len = strlen (home_path);
+ char *mem = alloca (home_drive_len + home_path_len + 1);
+
+ memcpy (mem, home_drive, home_drive_len);
+ memcpy (mem + home_drive_len, home_path, home_path_len + 1);
+ home_dir = mem;
+ }
+ else
+ home_dir = "c:/users/default"; /* poor default */
#else
- int err;
- struct passwd *p;
- struct passwd pwbuf;
- struct scratch_buffer s;
- scratch_buffer_init (&s);
- while (true)
- {
- p = NULL;
- err = __getlogin_r (s.data, s.length);
- if (err == 0)
- {
+ int err;
+ struct passwd *p;
+ struct passwd pwbuf;
+ struct scratch_buffer s;
+ scratch_buffer_init (&s);
+ while (true)
+ {
+ p = NULL;
+ err = __getlogin_r (s.data, s.length);
+ if (err == 0)
+ {
# if defined HAVE_GETPWNAM_R || defined _LIBC
- size_t ssize = strlen (s.data) + 1;
- char *sdata = s.data;
- err = getpwnam_r (sdata, &pwbuf, sdata + ssize,
- s.length - ssize, &p);
+ size_t ssize = strlen (s.data) + 1;
+ char *sdata = s.data;
+ err = getpwnam_r (sdata, &pwbuf, sdata + ssize,
+ s.length - ssize, &p);
# else
- p = getpwnam (s.data);
- if (p == NULL)
- err = errno;
+ p = getpwnam (s.data);
+ if (p == NULL)
+ err = errno;
# endif
- }
- if (err != ERANGE)
- break;
- if (!scratch_buffer_grow (&s))
- {
- retval = GLOB_NOSPACE;
- goto out;
- }
- }
- if (err == 0)
- {
- home_dir = strdup (p->pw_dir);
- malloc_home_dir = 1;
- }
- scratch_buffer_free (&s);
- if (err == 0 && home_dir == NULL)
- {
- retval = GLOB_NOSPACE;
- goto out;
- }
+ }
+ if (err != ERANGE)
+ break;
+ if (!scratch_buffer_grow (&s))
+ {
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ }
+ if (err == 0)
+ {
+ home_dir = strdup (p->pw_dir);
+ malloc_home_dir = 1;
+ }
+ scratch_buffer_free (&s);
+ if (err == 0 && home_dir == NULL)
+ {
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
#endif /* WINDOWS32 */
- }
- if (home_dir == NULL || home_dir[0] == '\0')
- {
- if (__glibc_unlikely (malloc_home_dir))
- free (home_dir);
- if (flags & GLOB_TILDE_CHECK)
- {
- retval = GLOB_NOMATCH;
- goto out;
- }
- else
- {
- home_dir = (char *) "~"; /* No luck. */
- malloc_home_dir = 0;
- }
- }
- /* Now construct the full directory. */
- if (dirname[1] == '\0')
- {
- if (__glibc_unlikely (malloc_dirname))
- free (dirname);
-
- dirname = home_dir;
- dirlen = strlen (dirname);
- malloc_dirname = malloc_home_dir;
- }
- else
- {
- char *newp;
- size_t home_len = strlen (home_dir);
- int use_alloca = glob_use_alloca (alloca_used, home_len + dirlen);
- if (use_alloca)
- newp = alloca_account (home_len + dirlen, alloca_used);
- else
- {
- newp = malloc (home_len + dirlen);
- if (newp == NULL)
- {
- if (__glibc_unlikely (malloc_home_dir))
- free (home_dir);
- retval = GLOB_NOSPACE;
- goto out;
- }
- }
-
- mempcpy (mempcpy (newp, home_dir, home_len),
- &dirname[1], dirlen);
-
- if (__glibc_unlikely (malloc_dirname))
- free (dirname);
-
- dirname = newp;
- dirlen += home_len - 1;
- malloc_dirname = !use_alloca;
-
- if (__glibc_unlikely (malloc_home_dir))
- free (home_dir);
- }
- dirname_modified = 1;
- }
+ }
+ if (home_dir == NULL || home_dir[0] == '\0')
+ {
+ if (__glibc_unlikely (malloc_home_dir))
+ free (home_dir);
+ if (flags & GLOB_TILDE_CHECK)
+ {
+ retval = GLOB_NOMATCH;
+ goto out;
+ }
+ else
+ {
+ home_dir = (char *) "~"; /* No luck. */
+ malloc_home_dir = 0;
+ }
+ }
+ /* Now construct the full directory. */
+ if (dirname[1] == '\0')
+ {
+ if (__glibc_unlikely (malloc_dirname))
+ free (dirname);
+
+ dirname = home_dir;
+ dirlen = strlen (dirname);
+ malloc_dirname = malloc_home_dir;
+ }
+ else
+ {
+ char *newp;
+ size_t home_len = strlen (home_dir);
+ int use_alloca = glob_use_alloca (alloca_used, home_len + dirlen);
+ if (use_alloca)
+ newp = alloca_account (home_len + dirlen, alloca_used);
+ else
+ {
+ newp = malloc (home_len + dirlen);
+ if (newp == NULL)
+ {
+ if (__glibc_unlikely (malloc_home_dir))
+ free (home_dir);
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ }
+
+ mempcpy (mempcpy (newp, home_dir, home_len),
+ &dirname[1], dirlen);
+
+ if (__glibc_unlikely (malloc_dirname))
+ free (dirname);
+
+ dirname = newp;
+ dirlen += home_len - 1;
+ malloc_dirname = !use_alloca;
+
+ if (__glibc_unlikely (malloc_home_dir))
+ free (home_dir);
+ }
+ dirname_modified = 1;
+ }
else
- {
+ {
#ifndef WINDOWS32
- char *end_name = strchr (dirname, '/');
- char *user_name;
- int malloc_user_name = 0;
- 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;
- if (glob_use_alloca (alloca_used, end_name - dirname))
- newp = alloca_account (end_name - dirname, alloca_used);
- else
- {
- newp = malloc (end_name - dirname);
- if (newp == NULL)
- {
- retval = GLOB_NOSPACE;
- goto out;
- }
- malloc_user_name = 1;
- }
- if (unescape != NULL)
- {
- char *p = mempcpy (newp, dirname + 1,
- unescape - dirname - 1);
- char *q = unescape;
- while (q != end_name)
- {
- if (*q == '\\')
- {
- if (q + 1 == end_name)
- {
- /* "~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 - 1))
- = '\0';
- user_name = newp;
- }
-
- /* Look up specific user's home directory. */
- {
- struct passwd *p;
- struct scratch_buffer pwtmpbuf;
- scratch_buffer_init (&pwtmpbuf);
+ /* Recognize ~user as a shorthand for the specified user's home
+ directory. */
+ char *end_name = strchr (dirname, '/');
+ char *user_name;
+ int malloc_user_name = 0;
+ 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;
+ if (glob_use_alloca (alloca_used, end_name - dirname))
+ newp = alloca_account (end_name - dirname, alloca_used);
+ else
+ {
+ newp = malloc (end_name - dirname);
+ if (newp == NULL)
+ {
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ malloc_user_name = 1;
+ }
+ if (unescape != NULL)
+ {
+ char *p = mempcpy (newp, dirname + 1,
+ unescape - dirname - 1);
+ char *q = unescape;
+ while (q != end_name)
+ {
+ if (*q == '\\')
+ {
+ if (q + 1 == end_name)
+ {
+ /* "~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 - 1))
+ = '\0';
+ user_name = newp;
+ }
+
+ /* Look up specific user's home directory. */
+ {
+ struct passwd *p;
+ struct scratch_buffer pwtmpbuf;
+ scratch_buffer_init (&pwtmpbuf);
# if defined HAVE_GETPWNAM_R || defined _LIBC
- struct passwd pwbuf;
+ struct passwd pwbuf;
- while (getpwnam_r (user_name, &pwbuf,
- pwtmpbuf.data, pwtmpbuf.length, &p)
- == ERANGE)
- {
- if (!scratch_buffer_grow (&pwtmpbuf))
- {
- retval = GLOB_NOSPACE;
- goto out;
- }
- }
+ while (getpwnam_r (user_name, &pwbuf,
+ pwtmpbuf.data, pwtmpbuf.length, &p)
+ == ERANGE)
+ {
+ if (!scratch_buffer_grow (&pwtmpbuf))
+ {
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ }
# else
- p = getpwnam (user_name);
+ p = getpwnam (user_name);
# endif
- if (__glibc_unlikely (malloc_user_name))
- free (user_name);
+ if (__glibc_unlikely (malloc_user_name))
+ free (user_name);
- /* If we found a home directory use this. */
- if (p != NULL)
- {
- size_t home_len = strlen (p->pw_dir);
- size_t rest_len = end_name == NULL ? 0 : strlen (end_name);
- char *d, *newp;
- bool use_alloca = glob_use_alloca (alloca_used,
- home_len + rest_len + 1);
-
- if (use_alloca)
- newp = alloca_account (home_len + rest_len + 1, alloca_used);
- else
- {
- newp = malloc (home_len + rest_len + 1);
- if (newp == NULL)
- {
- scratch_buffer_free (&pwtmpbuf);
- retval = GLOB_NOSPACE;
- goto out;
- }
- }
- d = mempcpy (newp, p->pw_dir, home_len);
- if (end_name != NULL)
- d = mempcpy (d, end_name, rest_len);
- *d = '\0';
-
- if (__glibc_unlikely (malloc_dirname))
- free (dirname);
- dirname = newp;
- malloc_dirname = !use_alloca;
-
- 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. */
- retval = GLOB_NOMATCH;
- goto out;
- }
- }
- scratch_buffer_free (&pwtmpbuf);
- }
-#endif /* !WINDOWS32 */
- }
+ /* If we found a home directory use this. */
+ if (p != NULL)
+ {
+ size_t home_len = strlen (p->pw_dir);
+ size_t rest_len = end_name == NULL ? 0 : strlen (end_name);
+ /* dirname contains end_name; we can't free it now. */
+ char *prev_dirname =
+ (__glibc_unlikely (malloc_dirname) ? dirname : NULL);
+ char *d;
+
+ malloc_dirname = 0;
+
+ if (glob_use_alloca (alloca_used, home_len + rest_len + 1))
+ dirname = alloca_account (home_len + rest_len + 1,
+ alloca_used);
+ else
+ {
+ dirname = malloc (home_len + rest_len + 1);
+ if (dirname == NULL)
+ {
+ free (prev_dirname);
+ scratch_buffer_free (&pwtmpbuf);
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ malloc_dirname = 1;
+ }
+ d = mempcpy (dirname, p->pw_dir, home_len);
+ if (end_name != NULL)
+ d = mempcpy (d, end_name, rest_len);
+ *d = '\0';
+
+ free (prev_dirname);
+
+ 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. */
+ retval = GLOB_NOMATCH;
+ goto out;
+ }
+ }
+ scratch_buffer_free (&pwtmpbuf);
+ }
+#else /* WINDOWS32 */
+ /* On native Windows, access to a user's home directory
+ (via GetUserProfileDirectory) or to a user's environment
+ variables (via ExpandEnvironmentStringsForUser) requires
+ the credentials of the user. Therefore we cannot support
+ the ~user syntax on this platform.
+ Handling ~user specially (and treat it like plain ~) if
+ user is getenv ("USERNAME") would not be a good idea,
+ since it would make people think that ~user is supported
+ in general. */
+ if (flags & GLOB_TILDE_CHECK)
+ {
+ retval = GLOB_NOMATCH;
+ goto out;
+ }
+#endif /* WINDOWS32 */
+ }
}
/* Now test whether we looked for "~" or "~NAME". In this case we
can give the answer now. */
if (filename == NULL)
{
- size_t newcount = pglob->gl_pathc + pglob->gl_offs;
- char **new_gl_pathv;
+ size_t newcount = pglob->gl_pathc + pglob->gl_offs;
+ char **new_gl_pathv;
+
+ if (newcount > SIZE_MAX / sizeof (char *) - 2)
+ {
+ nospace:
+ free (pglob->gl_pathv);
+ pglob->gl_pathv = NULL;
+ pglob->gl_pathc = 0;
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
- if (newcount > SIZE_MAX / sizeof (char *) - 2)
- {
- nospace:
- free (pglob->gl_pathv);
- pglob->gl_pathv = NULL;
- pglob->gl_pathc = 0;
- retval = GLOB_NOSPACE;
- goto out;
- }
-
- new_gl_pathv = realloc (pglob->gl_pathv,
- (newcount + 2) * sizeof (char *));
- if (new_gl_pathv == NULL)
- goto nospace;
- pglob->gl_pathv = new_gl_pathv;
-
- if (flags & GLOB_MARK && is_dir (dirname, flags, pglob))
- {
- 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';
- if (__glibc_unlikely (malloc_dirname))
- free (dirname);
- }
- else
- {
- if (__glibc_unlikely (malloc_dirname))
- pglob->gl_pathv[newcount] = dirname;
- 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;
+ new_gl_pathv = realloc (pglob->gl_pathv,
+ (newcount + 2) * sizeof (char *));
+ if (new_gl_pathv == NULL)
+ goto nospace;
+ pglob->gl_pathv = new_gl_pathv;
+
+ if (flags & GLOB_MARK && is_dir (dirname, flags, pglob))
+ {
+ 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';
+ if (__glibc_unlikely (malloc_dirname))
+ free (dirname);
+ }
+ else
+ {
+ if (__glibc_unlikely (malloc_dirname))
+ pglob->gl_pathv[newcount] = dirname;
+ 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;
+ return 0;
}
meta = __glob_pattern_type (dirname, !(flags & GLOB_NOESCAPE));
@@ -934,135 +969,135 @@ __glob (const char *pattern, int flags,
if (meta & (GLOBPAT_SPECIAL | GLOBPAT_BRACKET))
{
/* The directory name contains metacharacters, so we
- have to glob for the directory, and then glob for
- the pattern in each directory found. */
+ 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';
- }
+ {
+ /* "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 (__glibc_unlikely ((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;
- }
+ {
+ /* 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);
+ ((flags & (GLOB_ERR | GLOB_NOESCAPE | GLOB_ALTDIRFUNC))
+ | GLOB_NOSORT | GLOB_ONLYDIR),
+ errfunc, &dirs);
if (status != 0)
- {
- if ((flags & GLOB_NOCHECK) == 0 || status != GLOB_NOMATCH)
- {
- retval = status;
- goto out;
- }
- goto no_matches;
- }
+ {
+ if ((flags & GLOB_NOCHECK) == 0 || status != GLOB_NOMATCH)
+ {
+ retval = status;
+ goto out;
+ }
+ 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 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)
- {
- size_t old_pathc;
+ {
+ size_t old_pathc;
- old_pathc = pglob->gl_pathc;
- status = glob_in_dir (filename, dirs.gl_pathv[i],
- ((flags | GLOB_APPEND)
- & ~(GLOB_NOCHECK | GLOB_NOMAGIC)),
- errfunc, pglob, alloca_used);
- if (status == GLOB_NOMATCH)
- /* No matches in this directory. Try the next. */
- continue;
-
- if (status != 0)
- {
- globfree (&dirs);
- globfree (pglob);
- pglob->gl_pathc = 0;
- retval = status;
- goto out;
- }
-
- /* 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;
- retval = GLOB_NOSPACE;
- goto out;
- }
- }
+ old_pathc = pglob->gl_pathc;
+ status = glob_in_dir (filename, dirs.gl_pathv[i],
+ ((flags | GLOB_APPEND)
+ & ~(GLOB_NOCHECK | GLOB_NOMAGIC)),
+ errfunc, pglob, alloca_used);
+ if (status == GLOB_NOMATCH)
+ /* No matches in this directory. Try the next. */
+ continue;
+
+ if (status != 0)
+ {
+ globfree (&dirs);
+ globfree (pglob);
+ pglob->gl_pathc = 0;
+ retval = status;
+ goto out;
+ }
+
+ /* 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;
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ }
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. */
+ 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)
- {
- size_t newcount = pglob->gl_pathc + pglob->gl_offs;
- char **new_gl_pathv;
-
- if (newcount > SIZE_MAX / sizeof (char *) - 2)
- {
- nospace2:
- globfree (&dirs);
- retval = GLOB_NOSPACE;
- goto out;
- }
-
- new_gl_pathv = realloc (pglob->gl_pathv,
- (newcount + 2) * sizeof (char *));
- if (new_gl_pathv == NULL)
- goto nospace2;
- 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;
- retval = GLOB_NOSPACE;
- goto out;
- }
-
- ++pglob->gl_pathc;
- ++newcount;
-
- pglob->gl_pathv[newcount] = NULL;
- pglob->gl_flags = flags;
- }
- else
- {
- globfree (&dirs);
- retval = GLOB_NOMATCH;
- goto out;
- }
- }
+ {
+ no_matches:
+ /* No matches. */
+ if (flags & GLOB_NOCHECK)
+ {
+ size_t newcount = pglob->gl_pathc + pglob->gl_offs;
+ char **new_gl_pathv;
+
+ if (newcount > SIZE_MAX / sizeof (char *) - 2)
+ {
+ nospace2:
+ globfree (&dirs);
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+
+ new_gl_pathv = realloc (pglob->gl_pathv,
+ (newcount + 2) * sizeof (char *));
+ if (new_gl_pathv == NULL)
+ goto nospace2;
+ 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;
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+
+ ++pglob->gl_pathc;
+ ++newcount;
+
+ pglob->gl_pathv[newcount] = NULL;
+ pglob->gl_flags = flags;
+ }
+ else
+ {
+ globfree (&dirs);
+ retval = GLOB_NOMATCH;
+ goto out;
+ }
+ }
globfree (&dirs);
}
@@ -1072,57 +1107,57 @@ __glob (const char *pattern, int flags,
int orig_flags = flags;
if (meta & GLOBPAT_BACKSLASH)
- {
- 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;
- }
+ {
+ 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);
+ flags &= ~(GLOB_NOCHECK | GLOB_NOMAGIC);
status = glob_in_dir (filename, dirname, flags, errfunc, pglob,
- alloca_used);
+ alloca_used);
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;
- }
- retval = status;
- goto out;
- }
+ {
+ 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;
+ }
+ retval = status;
+ goto out;
+ }
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;
- retval = GLOB_NOSPACE;
- goto out;
- }
- }
+ {
+ /* 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;
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ }
}
if (flags & GLOB_MARK)
@@ -1131,28 +1166,28 @@ __glob (const char *pattern, int flags,
size_t i;
for (i = oldcount; i < pglob->gl_pathc + pglob->gl_offs; ++i)
- if (is_dir (pglob->gl_pathv[i], flags, pglob))
- {
- 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;
- retval = GLOB_NOSPACE;
- goto out;
- }
- strcpy (&new[len - 2], "/");
- pglob->gl_pathv[i] = new;
- }
+ if (is_dir (pglob->gl_pathv[i], flags, pglob))
+ {
+ 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;
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ 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);
+ pglob->gl_pathc + pglob->gl_offs - oldcount,
+ sizeof (char *), collated_compare);
}
out:
@@ -1204,14 +1239,14 @@ prefix_array (const char *dirname, char
if (dirlen > 1)
{
if (dirname[dirlen - 1] == '/' && dirname[dirlen - 2] == ':')
- /* DIRNAME is "d:/". Don't prepend the slash from DIRNAME. */
- --dirlen;
+ /* DIRNAME is "d:/". Don't prepend the slash from DIRNAME. */
+ --dirlen;
else if (dirname[dirlen - 1] == ':')
- {
- /* DIRNAME is "d:". Use ':' instead of '/'. */
- --dirlen;
- dirsep_char = ':';
- }
+ {
+ /* DIRNAME is "d:". Use ':' instead of '/'. */
+ --dirlen;
+ dirsep_char = ':';
+ }
}
#endif
@@ -1220,16 +1255,16 @@ prefix_array (const char *dirname, char
size_t eltlen = strlen (array[i]) + 1;
char *new = malloc (dirlen + 1 + eltlen);
if (new == NULL)
- {
- while (i > 0)
- free (array[--i]);
- return 1;
- }
+ {
+ while (i > 0)
+ free (array[--i]);
+ return 1;
+ }
{
- char *endp = mempcpy (new, dirname, dirlen);
- *endp++ = dirsep_char;
- mempcpy (endp, array[i], eltlen);
+ char *endp = mempcpy (new, dirname, dirlen);
+ *endp++ = dirsep_char;
+ mempcpy (endp, array[i], eltlen);
}
free (array[i]);
array[i] = new;
@@ -1244,11 +1279,13 @@ prefix_array (const char *dirname, char
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 alloca_used)
+ int (*errfunc) (const char *, int),
+ glob_t *pglob, size_t alloca_used)
{
size_t dirlen = strlen (directory);
void *stream = NULL;
+ struct scratch_buffer s;
+ scratch_buffer_init (&s);
# define GLOBNAMES_MEMBERS(nnames) \
struct globnames *next; size_t count; char *name[nnames];
struct globnames { GLOBNAMES_MEMBERS (FLEXIBLE_ARRAY_MEMBER) };
@@ -1273,8 +1310,8 @@ glob_in_dir (const char *pattern, const
if (meta == GLOBPAT_NONE && (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. */
+ characters and we must not return an error therefore the
+ result will always contain exactly one name. */
flags |= GLOB_NOCHECK;
}
else if (meta == GLOBPAT_NONE)
@@ -1288,102 +1325,127 @@ glob_in_dir (const char *pattern, const
if (alloca_fullname)
fullname = alloca_account (fullsize, alloca_used);
else
- {
- fullname = malloc (fullsize);
- if (fullname == NULL)
- return GLOB_NOSPACE;
- }
+ {
+ fullname = malloc (fullsize);
+ if (fullname == NULL)
+ return GLOB_NOSPACE;
+ }
mempcpy (mempcpy (mempcpy (fullname, directory, dirlen),
- "/", 1),
- pattern, patlen + 1);
+ "/", 1),
+ pattern, patlen + 1);
if (glob_lstat (pglob, flags, fullname) == 0
- || errno == EOVERFLOW)
- /* We found this file to be existing. Now tell the rest
- of the function to copy this name into the result. */
- flags |= GLOB_NOCHECK;
+ || errno == EOVERFLOW)
+ /* We found this file to be existing. Now tell the rest
+ of the function to copy this name into the result. */
+ flags |= GLOB_NOCHECK;
if (__glibc_unlikely (!alloca_fullname))
- free (fullname);
+ free (fullname);
}
else
{
stream = (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
- ? (*pglob->gl_opendir) (directory)
- : opendir (directory));
+ ? (*pglob->gl_opendir) (directory)
+ : opendir (directory));
if (stream == NULL)
- {
- if (errno != ENOTDIR
- && ((errfunc != NULL && (*errfunc) (directory, errno))
- || (flags & GLOB_ERR)))
- return GLOB_ABORTED;
- }
+ {
+ if (errno != ENOTDIR
+ && ((errfunc != NULL && (*errfunc) (directory, errno))
+ || (flags & GLOB_ERR)))
+ return GLOB_ABORTED;
+ }
else
- {
- int fnm_flags = ((!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0)
- | ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0));
- flags |= GLOB_MAGCHAR;
-
- while (1)
- {
- struct readdir_result d;
- {
- if (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0))
- d = convert_dirent (GL_READDIR (pglob, stream));
- else
- {
+ {
+ int dfd = dirfd (stream);
+ int fnm_flags = ((!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0)
+ | ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0));
+ flags |= GLOB_MAGCHAR;
+
+ while (1)
+ {
+ struct readdir_result d;
+ {
+ if (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0))
+ d = convert_dirent (GL_READDIR (pglob, stream));
+ else
+ {
#ifdef COMPILE_GLOB64
- d = convert_dirent (__readdir (stream));
+ d = convert_dirent (__readdir (stream));
#else
- d = convert_dirent64 (__readdir64 (stream));
+ d = convert_dirent64 (__readdir64 (stream));
#endif
- }
- }
- if (d.name == NULL)
- break;
-
- /* If we shall match only directories use the information
- provided by the dirent call if possible. */
- if (flags & GLOB_ONLYDIR)
- switch (readdir_result_type (d))
- {
- case DT_DIR: case DT_LNK: case DT_UNKNOWN: break;
- default: continue;
- }
-
- if (fnmatch (pattern, d.name, fnm_flags) == 0)
- {
- if (cur == names->count)
- {
- struct globnames *newnames;
- size_t count = names->count * 2;
- size_t nameoff = offsetof (struct globnames, name);
- size_t size = FLEXSIZEOF (struct globnames, name,
- count * sizeof (char *));
- if ((SIZE_MAX - nameoff) / 2 / sizeof (char *)
- < names->count)
- goto memory_error;
- if (glob_use_alloca (alloca_used, size))
- newnames = names_alloca
- = alloca_account (size, alloca_used);
- else if ((newnames = malloc (size))
- == NULL)
- goto memory_error;
- newnames->count = count;
- newnames->next = names;
- names = newnames;
- cur = 0;
- }
- names->name[cur] = strdup (d.name);
- if (names->name[cur] == NULL)
- goto memory_error;
- ++cur;
- ++nfound;
- if (SIZE_MAX - pglob->gl_offs <= nfound)
- goto memory_error;
- }
- }
- }
+ }
+ }
+ if (d.name == NULL)
+ break;
+
+ /* If we shall match only directories use the information
+ provided by the dirent call if possible. */
+ if (flags & GLOB_ONLYDIR)
+ switch (readdir_result_type (d))
+ {
+ default: continue;
+ case DT_DIR: break;
+ case DT_LNK: case DT_UNKNOWN:
+ /* The filesystem was too lazy to give us a hint,
+ so we have to do it the hard way. */
+ if (__glibc_unlikely (dfd < 0 || flags & GLOB_ALTDIRFUNC))
+ {
+ size_t namelen = strlen (d.name);
+ size_t need = dirlen + 1 + namelen + 1;
+ if (s.length < need
+ && !scratch_buffer_set_array_size (&s, need, 1))
+ goto memory_error;
+ char *p = mempcpy (s.data, directory, dirlen);
+ *p = '/';
+ p += p[-1] != '/';
+ memcpy (p, d.name, namelen + 1);
+ if (! is_dir (s.data, flags, pglob))
+ continue;
+ }
+ else
+ {
+ struct_stat64 st64;
+ if (! (GLOB_FSTATAT64 (dfd, d.name, &st64, 0) == 0
+ && S_ISDIR (st64.st_mode)))
+ continue;
+ }
+ }
+
+ if (fnmatch (pattern, d.name, fnm_flags) == 0)
+ {
+ if (cur == names->count)
+ {
+ struct globnames *newnames;
+ size_t count = names->count * 2;
+ size_t nameoff = offsetof (struct globnames, name);
+ size_t size = FLEXSIZEOF (struct globnames, name,
+ count * sizeof (char *));
+ if ((SIZE_MAX - nameoff) / 2 / sizeof (char *)
+ < names->count)
+ goto memory_error;
+ if (glob_use_alloca (alloca_used, size))
+ newnames = names_alloca
+ = alloca_account (size, alloca_used);
+ else if ((newnames = malloc (size))
+ == NULL)
+ goto memory_error;
+ newnames->count = count;
+ newnames->next = names;
+ names = newnames;
+ cur = 0;
+ }
+ names->name[cur] = strdup (d.name);
+ if (names->name[cur] == NULL)
+ goto memory_error;
+ ++cur;
+ ++nfound;
+ if (SIZE_MAX - pglob->gl_offs <= nfound)
+ goto memory_error;
+ }
+ }
+ }
}
if (nfound == 0 && (flags & GLOB_NOCHECK))
@@ -1392,7 +1454,7 @@ glob_in_dir (const char *pattern, const
nfound = 1;
names->name[cur] = malloc (len + 1);
if (names->name[cur] == NULL)
- goto memory_error;
+ goto memory_error;
*((char *) mempcpy (names->name[cur++], pattern, len)) = '\0';
}
@@ -1403,82 +1465,83 @@ glob_in_dir (const char *pattern, const
result = 0;
if (SIZE_MAX / sizeof (char *) - pglob->gl_pathc
- < pglob->gl_offs + nfound + 1)
- goto memory_error;
+ < pglob->gl_offs + nfound + 1)
+ goto memory_error;
new_gl_pathv
- = realloc (pglob->gl_pathv,
- (pglob->gl_pathc + pglob->gl_offs + nfound + 1)
- * sizeof (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;
- }
+ {
+ 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);
- }
+ {
+ 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 = new_gl_pathv;
- pglob->gl_pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
+ pglob->gl_pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
- pglob->gl_flags = flags;
- }
+ pglob->gl_flags = flags;
+ }
}
if (stream != NULL)
{
save = errno;
if (__glibc_unlikely (flags & GLOB_ALTDIRFUNC))
- (*pglob->gl_closedir) (stream);
+ (*pglob->gl_closedir) (stream);
else
- closedir (stream);
+ closedir (stream);
__set_errno (save);
}
+ scratch_buffer_free (&s);
return result;
}
diff -rup a/sysdeps/gnu/glob-lstat-compat.c b/sysdeps/gnu/glob-lstat-compat.c
--- a/sysdeps/gnu/glob-lstat-compat.c 2018-08-01 01:10:47.000000000 -0400
+++ b/sysdeps/gnu/glob-lstat-compat.c 2022-05-02 17:51:04.167557574 -0400
@@ -29,7 +29,8 @@
#define GLOB_ATTRIBUTE attribute_compat_text_section
/* Avoid calling gl_lstat with GLOB_ALTDIRFUNC. */
-#define GLOB_NO_LSTAT
+#define GLOB_LSTAT gl_stat
+#define GLOB_LSTAT64 __stat64
#include <posix/glob.c>
diff -rup a/sysdeps/unix/sysv/linux/glob-lstat-compat.c b/sysdeps/unix/sysv/linux/glob-lstat-compat.c
--- a/sysdeps/unix/sysv/linux/glob-lstat-compat.c 2018-08-01 01:10:47.000000000 -0400
+++ b/sysdeps/unix/sysv/linux/glob-lstat-compat.c 2022-05-02 23:05:45.197297341 -0400
@@ -30,7 +30,12 @@
#define GLOB_ATTRIBUTE attribute_compat_text_section
/* Avoid calling gl_lstat with GLOB_ALTDIRFUNC. */
-#define GLOB_NO_LSTAT
+# define COMPILE_GLOB64 1
+# define struct_stat struct stat
+# define struct_stat64 struct stat64
+# define GLOB_LSTAT gl_stat
+# define GLOB_STAT64 __stat64
+# define GLOB_LSTAT64 __stat64
#include <posix/glob.c>