-/* Copyright (C) 1991-2002,2003,2004,2005 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-/* AIX requires this to be the first thing in the file. */
-#if defined _AIX && !defined __GNUC__
- #pragma alloca
-#endif
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
-/* Enable GNU extensions in glob.h. */
-#ifndef _GNU_SOURCE
-# define _GNU_SOURCE 1
-#endif
+#include <glob.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include <stddef.h>
/* Outcomment the following line for production quality code. */
/* #define NDEBUG 1 */
#include <stdio.h> /* Needed on stupid SunOS for assert. */
-
-/* Comment out all this code if we are using the GNU C Library, and are not
- actually compiling the library itself. This code is part of the GNU C
- Library, but also included in many other GNU distributions. Compiling
- and linking in this code is a waste when using the GNU C library
- (especially if it is a shared library). Rather than having every GNU
- program understand `configure --with-gnu-libc' and omit the object files,
- it is simpler to just do this in the source for each such file. */
-
-#define GLOB_INTERFACE_VERSION 1
-#if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1
-# include <gnu-versions.h>
-# if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
-# define ELIDE_CODE
-# endif
-#endif
-
-#ifndef ELIDE_CODE
#if !defined _LIBC || !defined GLOB_ONLY_P
-
-#if defined STDC_HEADERS || defined __GNU_LIBRARY__
-# include <stddef.h>
-#endif
-
#if defined HAVE_UNISTD_H || defined _LIBC
# include <unistd.h>
# ifndef POSIX
# endif
#endif
-#if !defined _AMIGA && !defined VMS && !defined WINDOWS32
-# include <pwd.h>
-#endif
+#include <pwd.h>
-#if !defined __GNU_LIBRARY__ && !defined STDC_HEADERS
-extern int errno;
+#if defined HAVE_STDINT_H || defined _LIBC
+# include <stdint.h>
+#elif !defined UINTPTR_MAX
+# define UINTPTR_MAX (~((size_t) 0))
#endif
+
+#include <errno.h>
#ifndef __set_errno
# define __set_errno(val) errno = (val)
#endif
-#ifndef NULL
-# define NULL 0
-#endif
-
-
#if defined HAVE_DIRENT_H || defined __GNU_LIBRARY__
# include <dirent.h>
# define NAMLEN(dirent) strlen((dirent)->d_name)
#endif
/* When used in the GNU libc the symbol _DIRENT_HAVE_D_TYPE is available
- if the `d_type' member for `struct dirent' is available. */
-#ifdef _DIRENT_HAVE_D_TYPE
-# define HAVE_D_TYPE 1
-#endif
-
-#if _LIBC
-# define HAVE_DIRENT64 1
-#endif
+ if the `d_type' member for `struct dirent' is available.
+ HAVE_STRUCT_DIRENT_D_TYPE plays the same role in GNULIB. */
+#if defined _DIRENT_HAVE_D_TYPE || defined HAVE_STRUCT_DIRENT_D_TYPE
+/* True if the directory entry D must be of type T. */
+# define DIRENT_MUST_BE(d, t) ((d)->d_type == (t))
+
+/* True if the directory entry D might be a symbolic link. */
+# define DIRENT_MIGHT_BE_SYMLINK(d) \
+ ((d)->d_type == DT_UNKNOWN || (d)->d_type == DT_LNK)
+
+/* True if the directory entry D might be a directory. */
+# define DIRENT_MIGHT_BE_DIR(d) \
+ ((d)->d_type == DT_DIR || DIRENT_MIGHT_BE_SYMLINK (d))
+
+#else /* !HAVE_D_TYPE */
+# define DIRENT_MUST_BE(d, t) false
+# define DIRENT_MIGHT_BE_SYMLINK(d) true
+# define DIRENT_MIGHT_BE_DIR(d) true
+#endif /* HAVE_D_TYPE */
/* If the system has the `struct dirent64' type we use it internally. */
-#if defined HAVE_DIRENT64 && !defined COMPILE_GLOB64
+#if defined _LIBC && !defined COMPILE_GLOB64
# if defined HAVE_DIRENT_H || defined __GNU_LIBRARY__
# define CONVERT_D_NAMLEN(d64, d32)
# else
(d64)->d_ino = (d32)->d_ino;
# endif
-# ifdef HAVE_D_TYPE
+# ifdef _DIRENT_HAVE_D_TYPE
# define CONVERT_D_TYPE(d64, d32) \
(d64)->d_type = (d32)->d_type;
# else
# define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
#endif /* POSIX */
-#if defined STDC_HEADERS || defined __GNU_LIBRARY__
-# include <stdlib.h>
-# include <string.h>
-# define ANSI_STRING
-#else /* No standard headers. */
-
-extern char *getenv ();
-
-# ifdef HAVE_STRING_H
-# include <string.h>
-# define ANSI_STRING
-# else
-# include <strings.h>
-# endif
-# ifdef HAVE_MEMORY_H
-# include <memory.h>
-# endif
-
-extern char *malloc (), *realloc ();
-extern void free ();
-
-extern void qsort ();
-extern void abort (), exit ();
-
-#endif /* Standard headers. */
+#include <stdlib.h>
+#include <string.h>
/* NAME_MAX is usually defined in <dirent.h> or <limits.h>. */
-#if defined HAVE_LIMITS_H || defined __GNU_LIBRARY__
-# include <limits.h>
-#endif
+#include <limits.h>
#ifndef NAME_MAX
# define NAME_MAX (sizeof (((struct dirent *) 0)->d_name))
#endif
-#ifndef ANSI_STRING
-
-# ifndef bzero
-extern void bzero ();
-# endif
-# ifndef bcopy
-extern void bcopy ();
-# endif
-
-# define memcpy(d, s, n) bcopy ((s), (d), (n))
-# define strrchr rindex
-/* memset is only used for zero here, but let's be paranoid. */
-# define memset(s, better_be_zero, n) \
- ((void) ((better_be_zero) == 0 ? (bzero((s), (n)), 0) : (abort(), 0)))
-#endif /* Not ANSI_STRING. */
-
-#if !defined HAVE_STRCOLL && !defined _LIBC
-# define strcoll strcmp
-#endif
-
-#if !defined HAVE_MEMPCPY && __GLIBC__ - 0 == 2 && __GLIBC_MINOR__ >= 1
-# define HAVE_MEMPCPY 1
-# undef mempcpy
-# define mempcpy(Dest, Src, Len) __mempcpy (Dest, Src, Len)
-#endif
-
-#ifndef __GNU_LIBRARY__
-# ifdef __GNUC__
-__inline
-# endif
-# ifndef __SASC
-# ifdef WINDOWS32
-static void *
-# else
-static char *
-# endif
-my_realloc (p, n)
- char *p;
- unsigned int n;
-{
- /* These casts are the for sake of the broken Ultrix compiler,
- which warns of illegal pointer combinations otherwise. */
- if (p == NULL)
- return (char *) malloc (n);
- return (char *) realloc (p, n);
-}
-# define realloc my_realloc
-# endif /* __SASC */
-#endif /* __GNU_LIBRARY__ */
-
-
-#if !defined __alloca && !defined __GNU_LIBRARY__
-
-# ifdef __GNUC__
-# undef alloca
-# define alloca(n) __builtin_alloca (n)
-# else /* Not GCC. */
-# ifdef HAVE_ALLOCA_H
-# include <alloca.h>
-# else /* Not HAVE_ALLOCA_H. */
-# ifndef _AIX
-# ifdef WINDOWS32
-# include <malloc.h>
-# else
-extern char *alloca ();
-# endif /* WINDOWS32 */
-# endif /* Not _AIX. */
-# endif /* sparc or HAVE_ALLOCA_H. */
-# endif /* GCC. */
-
-# define __alloca alloca
-
-#endif
-
-#ifndef __GNU_LIBRARY__
-# define __stat stat
-# ifdef STAT_MACROS_BROKEN
-# undef S_ISDIR
-# endif
-# ifndef S_ISDIR
-# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
-# endif
-#endif
+#include <alloca.h>
#ifdef _LIBC
-# include <alloca.h>
# undef strdup
# define strdup(str) __strdup (str)
# define sysconf(id) __sysconf (id)
# ifndef __stat64
# define __stat64(fname, buf) __xstat64 (_STAT_VER, fname, buf)
# endif
-# define HAVE_STAT64 1
-#endif
-
-#ifndef HAVE_STAT64
-# define __stat64(fname, buf) __stat (fname, buf)
-/* This is the variable name we are using. */
-# define st64 st
-#endif
-
-#if !(defined STDC_HEADERS || defined __GNU_LIBRARY__)
-# undef size_t
-# define size_t unsigned int
-#endif
+# define struct_stat64 struct stat64
+#else /* !_LIBC */
+# include "getlogin_r.h"
+# include "mempcpy.h"
+# include "stat-macros.h"
+# include "strdup.h"
+# define __stat64(fname, buf) stat (fname, buf)
+# define struct_stat64 struct stat
+# define __stat(fname, buf) stat (fname, buf)
+# define __alloca alloca
+# define __readdir readdir
+# define __readdir64 readdir64
+# define __glob_pattern_p glob_pattern_p
+#endif /* _LIBC */
-/* Some system header files erroneously define these.
- We want our own definitions from <fnmatch.h> to take precedence. */
-#ifndef __GNU_LIBRARY__
-# undef FNM_PATHNAME
-# undef FNM_NOESCAPE
-# undef FNM_PERIOD
-#endif
#include <fnmatch.h>
-/* Some system header files erroneously define these.
- We want our own definitions from <glob.h> to take precedence. */
-#ifndef __GNU_LIBRARY__
-# undef GLOB_ERR
-# undef GLOB_MARK
-# undef GLOB_NOSORT
-# undef GLOB_DOOFFS
-# undef GLOB_NOCHECK
-# undef GLOB_APPEND
-# undef GLOB_NOESCAPE
-# undef GLOB_PERIOD
+#ifdef _SC_GETPW_R_SIZE_MAX
+# define GETPW_R_SIZE_MAX() sysconf (_SC_GETPW_R_SIZE_MAX)
+#else
+# define GETPW_R_SIZE_MAX() (-1)
#endif
-#include <glob.h>
-
-#ifdef HAVE_GETLOGIN_R
-extern int getlogin_r (char *, size_t);
+#ifdef _SC_LOGIN_NAME_MAX
+# define GET_LOGIN_NAME_MAX() sysconf (_SC_LOGIN_NAME_MAX)
#else
-extern char *getlogin (void);
+# define GET_LOGIN_NAME_MAX() (-1)
#endif
\f
-static const char *next_brace_sub (const char *begin, int flags) __THROW;
+static const char *next_brace_sub (const char *begin, int flags) __THROWNL;
+
+#endif /* !defined _LIBC || !defined GLOB_ONLY_P */
-#endif /* GLOB_ONLY_P */
+#ifndef attribute_hidden
+# define attribute_hidden
+#endif
static int glob_in_dir (const char *pattern, const char *directory,
int flags, int (*errfunc) (const char *, int),
- glob_t *pglob);
+ glob_t *pglob, size_t alloca_used);
+extern int __glob_pattern_type (const char *pattern, int quote)
+ attribute_hidden;
#if !defined _LIBC || !defined GLOB_ONLY_P
-static int prefix_array (const char *prefix, char **array, size_t n) __THROW;
-static int collated_compare (const __ptr_t, const __ptr_t) __THROW;
+static int prefix_array (const char *prefix, char **array, size_t n) __THROWNL;
+static int collated_compare (const void *, const void *) __THROWNL;
/* Find the end of the sub-pattern in a brace expression. */
static const char *
-next_brace_sub (cp, flags)
- const char *cp;
- int flags;
+next_brace_sub (const char *cp, int flags)
{
- unsigned int depth = 0;
+ size_t depth = 0;
while (*cp != '\0')
if ((flags & GLOB_NOESCAPE) == 0 && *cp == '\\')
{
return *cp != '\0' ? cp : NULL;
}
-#endif /* !GLOB_ONLY_P */
+#endif /* !defined _LIBC || !defined GLOB_ONLY_P */
/* Do glob searching for PATTERN, placing results in PGLOB.
The bits defined above may be set in FLAGS.
glob_t *pglob;
{
const char *filename;
- const char *dirname;
+ char *dirname = NULL;
size_t dirlen;
int status;
size_t oldcount;
+ int meta;
+ int dirname_modified;
+ int malloc_dirname = 0;
+ glob_t dirs;
+ int retval = 0;
+#ifdef _LIBC
+ size_t alloca_used = 0;
+#endif
if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0)
{
return -1;
}
+ /* POSIX requires all slashes to be matched. This means that with
+ a trailing slash we must match only directories. */
+ if (pattern[0] && pattern[strlen (pattern) - 1] == '/')
+ flags |= GLOB_ONLYDIR;
+
if (!(flags & GLOB_DOOFFS))
/* Have to do this so `globfree' knows where to start freeing. It
also makes all the code that uses gl_offs simpler. */
const char *next;
const char *rest;
size_t rest_len;
-#ifdef __GNUC__
- char onealt[strlen (pattern) - 1];
-#else
- char *onealt = (char *) malloc (strlen (pattern) - 1);
- if (onealt == NULL)
+ char *onealt;
+ size_t pattern_len = strlen (pattern) - 1;
+#ifdef _LIBC
+ int alloca_onealt = __libc_use_alloca (alloca_used + pattern_len);
+ if (alloca_onealt)
+ onealt = alloca_account (pattern_len, alloca_used);
+ else
+#endif
{
- if (!(flags & GLOB_APPEND))
+ onealt = (char *) malloc (pattern_len);
+ if (onealt == NULL)
{
- pglob->gl_pathc = 0;
- pglob->gl_pathv = NULL;
+ if (!(flags & GLOB_APPEND))
+ {
+ pglob->gl_pathc = 0;
+ pglob->gl_pathv = NULL;
+ }
+ return GLOB_NOSPACE;
}
- return GLOB_NOSPACE;
}
-#endif
/* We know the prefix for all sub-patterns. */
-#ifdef HAVE_MEMPCPY
alt_start = mempcpy (onealt, pattern, begin - pattern);
-#else
- memcpy (onealt, pattern, begin - pattern);
- alt_start = &onealt[begin - pattern];
-#endif
/* Find the first sub-pattern and at the same time find the
rest after the closing brace. */
if (next == NULL)
{
/* It is an illegal expression. */
-#ifndef __GNUC__
- free (onealt);
+ illegal_brace:
+#ifdef _LIBC
+ if (__glibc_unlikely (!alloca_onealt))
#endif
+ free (onealt);
return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
}
{
rest = next_brace_sub (rest + 1, flags);
if (rest == NULL)
- {
- /* It is an illegal expression. */
-#ifndef __GNUC__
- free (onealt);
-#endif
- return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
- }
+ /* It is an illegal expression. */
+ goto illegal_brace;
}
/* Please note that we now can be sure the brace expression
is well-formed. */
int result;
/* Construct the new glob expression. */
-#ifdef HAVE_MEMPCPY
mempcpy (mempcpy (alt_start, p, next - p), rest, rest_len);
-#else
- memcpy (alt_start, p, next - p);
- memcpy (&alt_start[next - p], rest, rest_len);
-#endif
result = glob (onealt,
((flags & ~(GLOB_NOCHECK | GLOB_NOMAGIC))
/* If we got an error, return it. */
if (result && result != GLOB_NOMATCH)
{
-#ifndef __GNUC__
- free (onealt);
+#ifdef _LIBC
+ if (__glibc_unlikely (!alloca_onealt))
#endif
+ free (onealt);
if (!(flags & GLOB_APPEND))
{
globfree (pglob);
assert (next != NULL);
}
-#ifndef __GNUC__
- free (onealt);
+#ifdef _LIBC
+ if (__glibc_unlikely (!alloca_onealt))
#endif
+ free (onealt);
if (pglob->gl_pathc != firstc)
/* We found some entries. */
}
}
+ if (!(flags & GLOB_APPEND))
+ {
+ pglob->gl_pathc = 0;
+ if (!(flags & GLOB_DOOFFS))
+ pglob->gl_pathv = NULL;
+ else
+ {
+ size_t i;
+
+ 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;
+ }
+ }
+
+ oldcount = pglob->gl_pathc + pglob->gl_offs;
+
/* Find the filename. */
filename = strrchr (pattern, '/');
#if defined __MSDOS__ || defined WINDOWS32
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;
+ dirname = (char *) pattern;
dirlen = strlen (pattern);
/* Set FILENAME to NULL as a special flag. This is ugly but
}
else
{
+ if (__glibc_unlikely (pattern[0] == '\0'))
+ {
+ dirs.gl_pathv = NULL;
+ goto no_matches;
+ }
+
filename = pattern;
#ifdef _AMIGA
- dirname = "";
+ dirname = (char *) "";
#else
- dirname = ".";
+ dirname = (char *) ".";
#endif
dirlen = 0;
}
}
- else if (filename == pattern)
+ else if (filename == pattern
+ || (filename == pattern + 1 && pattern[0] == '\\'
+ && (flags & GLOB_NOESCAPE) == 0))
{
- /* "/pattern". */
- dirname = "/";
+ /* "/pattern" or "\\/pattern". */
+ dirname = (char *) "/";
dirlen = 1;
++filename;
}
++dirlen;
drive_spec = (char *) __alloca (dirlen + 1);
-#ifdef HAVE_MEMPCPY
*((char *) mempcpy (drive_spec, pattern, dirlen)) = '\0';
-#else
- memcpy (drive_spec, pattern, dirlen);
- drive_spec[dirlen] = '\0';
-#endif
/* For now, disallow wildcards in the drive spec, to
prevent infinite recursion in glob. */
if (__glob_pattern_p (drive_spec, !(flags & GLOB_NOESCAPE)))
from "d:/", since "d:" and "d:/" are not the same.*/
}
#endif
- newp = (char *) __alloca (dirlen + 1);
-#ifdef HAVE_MEMPCPY
- *((char *) mempcpy (newp, pattern, dirlen)) = '\0';
-#else
- memcpy (newp, pattern, dirlen);
- newp[dirlen] = '\0';
+#ifdef _LIBC
+ if (__libc_use_alloca (alloca_used + dirlen + 1))
+ newp = alloca_account (dirlen + 1, alloca_used);
+ else
#endif
+ {
+ newp = malloc (dirlen + 1);
+ if (newp == NULL)
+ return GLOB_NOSPACE;
+ malloc_dirname = 1;
+ }
+ *((char *) mempcpy (newp, pattern, dirlen)) = '\0';
dirname = newp;
++filename;
if (filename[0] == '\0'
#if defined __MSDOS__ || defined WINDOWS32
- && dirname[dirlen - 1] != ':'
+ && 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));
- 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;
+ 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;
}
}
- oldcount = pglob->gl_pathc + pglob->gl_offs;
-
#ifndef VMS
if ((flags & (GLOB_TILDE|GLOB_TILDE_CHECK)) && dirname[0] == '~')
{
- if (dirname[1] == '\0' || dirname[1] == '/')
+ 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");
+ char *home_dir = getenv ("HOME");
+ int malloc_home_dir = 0;
# 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 */
+ home_dir = "c:/users/default"; /* poor default */
# else
if (home_dir == NULL || home_dir[0] == '\0')
{
int success;
char *name;
-# if defined HAVE_GETLOGIN_R || defined _LIBC
- size_t buflen = sysconf (_SC_LOGIN_NAME_MAX) + 1;
+ 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);
+ name = alloca_account (buflen, alloca_used);
success = getlogin_r (name, buflen) == 0;
-# else
- success = (name = getlogin ()) != NULL;
-# endif
if (success)
{
struct passwd *p;
# if defined HAVE_GETPWNAM_R || defined _LIBC
- long int pwbuflen = sysconf (_SC_GETPW_R_SIZE_MAX);
+ long int pwbuflen = GETPW_R_SIZE_MAX ();
char *pwtmpbuf;
struct passwd pwbuf;
+ int malloc_pwtmpbuf = 0;
int save = errno;
# ifndef _LIBC
Try a moderate value. */
pwbuflen = 1024;
# endif
- pwtmpbuf = (char *) __alloca (pwbuflen);
+ if (__libc_use_alloca (alloca_used + pwbuflen))
+ pwtmpbuf = alloca_account (pwbuflen, alloca_used);
+ else
+ {
+ pwtmpbuf = malloc (pwbuflen);
+ if (pwtmpbuf == NULL)
+ {
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ malloc_pwtmpbuf = 1;
+ }
while (getpwnam_r (name, &pwbuf, pwtmpbuf, pwbuflen, &p)
!= 0)
p = NULL;
break;
}
-# ifdef _LIBC
- pwtmpbuf = extend_alloca (pwtmpbuf, pwbuflen,
+
+ if (!malloc_pwtmpbuf
+ && __libc_use_alloca (alloca_used
+ + 2 * pwbuflen))
+ pwtmpbuf = extend_alloca_account (pwtmpbuf, pwbuflen,
+ 2 * pwbuflen,
+ alloca_used);
+ else
+ {
+ char *newp = realloc (malloc_pwtmpbuf
+ ? pwtmpbuf : NULL,
2 * pwbuflen);
-# else
- pwbuflen *= 2;
- pwtmpbuf = (char *) __alloca (pwbuflen);
-# endif
+ if (newp == NULL)
+ {
+ if (__glibc_unlikely (malloc_pwtmpbuf))
+ free (pwtmpbuf);
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ pwtmpbuf = newp;
+ pwbuflen = 2 * pwbuflen;
+ malloc_pwtmpbuf = 1;
+ }
__set_errno (save);
}
# else
p = getpwnam (name);
# endif
if (p != NULL)
- home_dir = p->pw_dir;
+ {
+ if (!malloc_pwtmpbuf)
+ home_dir = p->pw_dir;
+ else
+ {
+ size_t home_dir_len = strlen (p->pw_dir) + 1;
+ if (__libc_use_alloca (alloca_used + home_dir_len))
+ home_dir = alloca_account (home_dir_len,
+ alloca_used);
+ else
+ {
+ home_dir = malloc (home_dir_len);
+ if (home_dir == NULL)
+ {
+ free (pwtmpbuf);
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ malloc_home_dir = 1;
+ }
+ memcpy (home_dir, p->pw_dir, home_dir_len);
+
+ free (pwtmpbuf);
+ }
+ }
}
}
if (home_dir == NULL || home_dir[0] == '\0')
{
if (flags & GLOB_TILDE_CHECK)
- return GLOB_NOMATCH;
+ {
+ if (__glibc_unlikely (malloc_home_dir))
+ free (home_dir);
+ retval = GLOB_NOMATCH;
+ goto out;
+ }
else
- home_dir = "~"; /* No luck. */
+ home_dir = (char *) "~"; /* No luck. */
}
# endif /* WINDOWS32 */
# endif
/* Now construct the full directory. */
if (dirname[1] == '\0')
- dirname = home_dir;
+ {
+ 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);
- newp = (char *) __alloca (home_len + dirlen);
-# ifdef HAVE_MEMPCPY
+ int use_alloca = __libc_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);
-# else
- memcpy (newp, home_dir, home_len);
- memcpy (&newp[home_len], &dirname[1], dirlen);
-# endif
+
+ if (__glibc_unlikely (malloc_dirname))
+ free (dirname);
+
dirname = newp;
+ dirlen += home_len - 1;
+ malloc_dirname = !use_alloca;
}
+ dirname_modified = 1;
}
# if !defined _AMIGA && !defined WINDOWS32
else
{
char *end_name = strchr (dirname, '/');
- const char *user_name;
- const char *home_dir;
+ 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;
- newp = (char *) __alloca (end_name - dirname);
-# ifdef HAVE_MEMPCPY
- *((char *) mempcpy (newp, dirname + 1, end_name - dirname))
- = '\0';
-# else
- memcpy (newp, dirname + 1, end_name - dirname);
- newp[end_name - dirname - 1] = '\0';
-# endif
+ if (__libc_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 != '\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;
}
{
struct passwd *p;
# if defined HAVE_GETPWNAM_R || defined _LIBC
- long int buflen = sysconf (_SC_GETPW_R_SIZE_MAX);
+ long int buflen = GETPW_R_SIZE_MAX ();
char *pwtmpbuf;
+ int malloc_pwtmpbuf = 0;
struct passwd pwbuf;
int save = errno;
moderate value. */
buflen = 1024;
# endif
- pwtmpbuf = (char *) __alloca (buflen);
+ if (__libc_use_alloca (alloca_used + buflen))
+ pwtmpbuf = alloca_account (buflen, alloca_used);
+ else
+ {
+ pwtmpbuf = malloc (buflen);
+ if (pwtmpbuf == NULL)
+ {
+ nomem_getpw:
+ if (__glibc_unlikely (malloc_user_name))
+ free (user_name);
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ malloc_pwtmpbuf = 1;
+ }
while (getpwnam_r (user_name, &pwbuf, pwtmpbuf, buflen, &p) != 0)
{
p = NULL;
break;
}
-# ifdef _LIBC
- pwtmpbuf = extend_alloca (pwtmpbuf, buflen, 2 * buflen);
-# else
- buflen *= 2;
- pwtmpbuf = __alloca (buflen);
-# endif
+ if (!malloc_pwtmpbuf
+ && __libc_use_alloca (alloca_used + 2 * buflen))
+ pwtmpbuf = extend_alloca_account (pwtmpbuf, buflen,
+ 2 * buflen, alloca_used);
+ else
+ {
+ char *newp = realloc (malloc_pwtmpbuf ? pwtmpbuf : NULL,
+ 2 * buflen);
+ if (newp == NULL)
+ {
+ if (__glibc_unlikely (malloc_pwtmpbuf))
+ free (pwtmpbuf);
+ goto nomem_getpw;
+ }
+ pwtmpbuf = newp;
+ malloc_pwtmpbuf = 1;
+ }
__set_errno (save);
}
# else
p = getpwnam (user_name);
# endif
+
+ if (__glibc_unlikely (malloc_user_name))
+ free (user_name);
+
+ /* If we found a home directory use this. */
if (p != NULL)
- home_dir = p->pw_dir;
+ {
+ size_t home_len = strlen (p->pw_dir);
+ size_t rest_len = end_name == NULL ? 0 : strlen (end_name);
+
+ if (__glibc_unlikely (malloc_dirname))
+ free (dirname);
+ malloc_dirname = 0;
+
+ if (__libc_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)
+ {
+ if (__glibc_unlikely (malloc_pwtmpbuf))
+ free (pwtmpbuf);
+ retval = GLOB_NOSPACE;
+ goto out;
+ }
+ malloc_dirname = 1;
+ }
+ *((char *) mempcpy (mempcpy (dirname, p->pw_dir, home_len),
+ end_name, rest_len)) = '\0';
+
+ dirlen = home_len + rest_len;
+ dirname_modified = 1;
+
+ if (__glibc_unlikely (malloc_pwtmpbuf))
+ free (pwtmpbuf);
+ }
else
- home_dir = NULL;
+ {
+ if (__glibc_unlikely (malloc_pwtmpbuf))
+ free (pwtmpbuf);
+
+ if (flags & GLOB_TILDE_CHECK)
+ /* We have to regard it as an error if we cannot find the
+ home directory. */
+ return GLOB_NOMATCH;
+ }
}
- /* 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);
-# ifdef HAVE_MEMPCPY
- *((char *) mempcpy (mempcpy (newp, home_dir, home_len),
- end_name, rest_len)) = '\0';
-# else
- memcpy (newp, home_dir, home_len);
- memcpy (&newp[home_len], end_name, rest_len);
- newp[home_len + rest_len] = '\0';
-# endif
- dirname = newp;
- }
- else
- if (flags & GLOB_TILDE_CHECK)
- /* We have to regard it as an error if we cannot find the
- home directory. */
- return GLOB_NOMATCH;
}
# endif /* Not Amiga && not WINDOWS32. */
}
if (filename == NULL)
{
struct stat st;
-#ifdef HAVE_STAT64
- struct stat64 st64;
-#endif
+ struct_stat64 st64;
/* Return the directory if we don't check for error or if it exists. */
if ((flags & GLOB_NOCHECK)
- || (((flags & GLOB_ALTDIRFUNC)
+ || (((__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;
+ size_t 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)
+ if (newcount > UINTPTR_MAX - (1 + 1)
+ || newcount + 1 + 1 > ~((size_t) 0) / sizeof (char *))
{
nospace:
free (pglob->gl_pathv);
pglob->gl_pathc = 0;
return GLOB_NOSPACE;
}
- pglob->gl_pathv = new_gl_pathv;
-#if defined HAVE_STRDUP || defined _LIBC
- pglob->gl_pathv[newcount] = strdup (dirname);
-#else
- {
- size_t len = strlen (dirname) + 1;
- char *dircopy = (char *) malloc (len);
- if (dircopy != NULL)
- pglob->gl_pathv[newcount] = memcpy (dircopy, dirname, len);
- }
-#endif
- if (pglob->gl_pathv[newcount] == NULL)
+ new_gl_pathv
+ = (char **) realloc (pglob->gl_pathv,
+ (newcount + 1 + 1) * sizeof (char *));
+ if (new_gl_pathv == NULL)
goto 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 GLOB_NOMATCH;
}
- if (__glob_pattern_p (dirname, !(flags & GLOB_NOESCAPE)))
+ 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. */
- glob_t dirs;
size_t i;
- if ((flags & GLOB_ALTDIRFUNC) != 0)
+ 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 (__glibc_unlikely ((flags & GLOB_ALTDIRFUNC) != 0))
{
/* Use the alternative access functions also in the recursive
call. */
}
status = glob (dirname,
- ((flags & (GLOB_ERR | GLOB_NOCHECK | GLOB_NOESCAPE
+ ((flags & (GLOB_ERR | GLOB_NOESCAPE
| GLOB_ALTDIRFUNC))
| GLOB_NOSORT | GLOB_ONLYDIR),
errfunc, &dirs);
if (status != 0)
- return status;
+ {
+ 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;
+ size_t old_pathc;
#ifdef SHELL
{
status = glob_in_dir (filename, dirs.gl_pathv[i],
((flags | GLOB_APPEND)
& ~(GLOB_NOCHECK | GLOB_NOMAGIC)),
- errfunc, pglob);
+ errfunc, pglob, alloca_used);
if (status == GLOB_NOMATCH)
/* No matches in this directory. Try the next. */
continue;
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;
+ size_t 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)
+ if (newcount > UINTPTR_MAX - 2
+ || newcount + 2 > ~((size_t) 0) / sizeof (char *))
{
+ nospace2:
globfree (&dirs);
return GLOB_NOSPACE;
}
+
+ new_gl_pathv = (char **) 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);
}
else
{
- int old_pathc = pglob->gl_pathc;
+ size_t old_pathc = pglob->gl_pathc;
+ int orig_flags = flags;
- status = glob_in_dir (filename, dirname, flags, errfunc, pglob);
+ 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,
+ alloca_used);
if (status != 0)
- return status;
+ {
+ 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)
{
/* Append slashes to directory names. */
size_t i;
struct stat st;
-#ifdef HAVE_STAT64
- struct stat64 st64;
-#endif
+ struct_stat64 st64;
for (i = oldcount; i < pglob->gl_pathc + pglob->gl_offs; ++i)
- if (((flags & GLOB_ALTDIRFUNC)
+ 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;
+ size_t len = strlen (pglob->gl_pathv[i]) + 2;
char *new = realloc (pglob->gl_pathv[i], len);
- if (new == NULL)
+ if (new == NULL)
{
globfree (pglob);
pglob->gl_pathc = 0;
if (!(flags & GLOB_NOSORT))
{
/* Sort the vector. */
- qsort ((__ptr_t) &pglob->gl_pathv[oldcount],
+ qsort (&pglob->gl_pathv[oldcount],
pglob->gl_pathc + pglob->gl_offs - oldcount,
sizeof (char *), collated_compare);
}
- return 0;
+ out:
+ if (__glibc_unlikely (malloc_dirname))
+ free (dirname);
+
+ return retval;
}
#if defined _LIBC && !defined glob
libc_hidden_def (glob)
/* Free storage allocated in PGLOB by a previous `glob' call. */
void
globfree (pglob)
- register glob_t *pglob;
+ glob_t *pglob;
{
if (pglob->gl_pathv != NULL)
{
size_t i;
for (i = 0; i < pglob->gl_pathc; ++i)
- if (pglob->gl_pathv[pglob->gl_offs + i] != NULL)
- free ((__ptr_t) pglob->gl_pathv[pglob->gl_offs + i]);
- free ((__ptr_t) pglob->gl_pathv);
+ free (pglob->gl_pathv[pglob->gl_offs + i]);
+ free (pglob->gl_pathv);
pglob->gl_pathv = NULL;
}
}
/* Do a collated comparison of A and B. */
static int
-collated_compare (a, b)
- const __ptr_t a;
- const __ptr_t b;
+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;
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 (dirname, array, n)
- const char *dirname;
- char **array;
- size_t n;
+prefix_array (const char *dirname, char **array, size_t n)
{
- register size_t i;
+ size_t i;
size_t dirlen = strlen (dirname);
#if defined __MSDOS__ || defined WINDOWS32
int sep_char = '/';
if (new == NULL)
{
while (i > 0)
- free ((__ptr_t) array[--i]);
+ free (array[--i]);
return 1;
}
-#ifdef HAVE_MEMPCPY
{
- char *endp = (char *) mempcpy (new, dirname, dirlen);
+ char *endp = mempcpy (new, dirname, dirlen);
*endp++ = DIRSEP_CHAR;
mempcpy (endp, array[i], eltlen);
}
-#else
- memcpy (new, dirname, dirlen);
- new[dirlen] = DIRSEP_CHAR;
- memcpy (&new[dirlen + 1], array[i], eltlen);
-#endif
- free ((__ptr_t) array[i]);
+ free (array[i]);
array[i] = new;
}
/* We must not compile this function twice. */
#if !defined _LIBC || !defined NO_GLOB_PATTERN_P
-/* Return nonzero if PATTERN contains any metacharacters.
- Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
int
-__glob_pattern_p (pattern, quote)
+__glob_pattern_type (pattern, quote)
const char *pattern;
int quote;
{
- register const char *p;
- int open = 0;
+ const char *p;
+ int ret = 0;
for (p = pattern; *p != '\0'; ++p)
switch (*p)
return 1;
case '\\':
- if (quote && p[1] != '\0')
- ++p;
+ if (quote)
+ {
+ if (p[1] != '\0')
+ ++p;
+ ret |= 2;
+ }
break;
case '[':
- open = 1;
+ ret |= 4;
break;
case ']':
- if (open)
+ if (ret & 4)
return 1;
break;
}
- return 0;
+ 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)
allocated with alloca to be recycled. */
#if !defined _LIBC || !defined GLOB_ONLY_P
static int
-link_exists_p (const char *dir, size_t dirlen, const char *fname,
- glob_t *pglob, int flags)
+__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;
- struct stat64 st64;
+# ifndef _LIBC
+ struct_stat64 st64;
+# endif
-# ifdef HAVE_MEMPCPY
mempcpy (mempcpy (mempcpy (fullname, dir, dirlen), "/", 1),
fname, fnamelen + 1);
-# else
- memcpy (fullname, dir, dirlen);
- fullname[dirlen] = '/';
- memcpy (&fullname[dirlen + 1], fname, fnamelen + 1);
-# endif
- return (((flags & GLOB_ALTDIRFUNC)
+# 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
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 (pattern, directory, flags, errfunc, pglob)
- const char *pattern;
- const char *directory;
- int flags;
- int (*errfunc) (const char *, int);
- glob_t *pglob;
+glob_in_dir (const char *pattern, const char *directory, int flags,
+ int (*errfunc) (const char *, int),
+ glob_t *pglob, size_t alloca_used)
{
size_t dirlen = strlen (directory);
- __ptr_t stream = NULL;
- struct globlink
+ void *stream = NULL;
+ struct globnames
{
- struct globlink *next;
- char *name;
+ struct globnames *next;
+ size_t count;
+ char *name[64];
};
- struct globlink *names = NULL;
- size_t nfound;
+#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 cur = 0;
int meta;
int save;
- meta = __glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE));
+ alloca_used += sizeof (init_names);
+
+ 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;
- nfound = 0;
}
- else if (meta == 0 &&
- ((flags & GLOB_NOESCAPE) || strchr (pattern, '\\') == NULL))
+ 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;
-# ifdef HAVE_STAT64
- struct stat64 st64;
-# endif
+ union
+ {
+ struct stat st;
+ struct_stat64 st64;
+ } ust;
size_t patlen = strlen (pattern);
- char *fullname = (char *) __alloca (dirlen + 1 + patlen + 1);
+ int alloca_fullname = __libc_use_alloca (alloca_used
+ + dirlen + 1 + patlen + 1);
+ char *fullname;
+ if (alloca_fullname)
+ fullname = alloca_account (dirlen + 1 + patlen + 1, alloca_used);
+ else
+ {
+ fullname = malloc (dirlen + 1 + patlen + 1);
+ if (fullname == NULL)
+ return GLOB_NOSPACE;
+ }
-# ifdef HAVE_MEMPCPY
mempcpy (mempcpy (mempcpy (fullname, directory, dirlen),
"/", 1),
pattern, patlen + 1);
-# else
- memcpy (fullname, directory, dirlen);
- fullname[dirlen] = '/';
- memcpy (&fullname[dirlen + 1], pattern, patlen + 1);
-# endif
- if (((flags & GLOB_ALTDIRFUNC)
- ? (*pglob->gl_stat) (fullname, &st)
- : __stat64 (fullname, &st64)) == 0)
+ if ((__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
+ ? (*pglob->gl_stat) (fullname, &ust.st)
+ : __stat64 (fullname, &ust.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;
- nfound = 0;
+ if (__glibc_unlikely (!alloca_fullname))
+ free (fullname);
}
else
{
- if (pattern[0] == '\0')
+ stream = (__builtin_expect (flags & GLOB_ALTDIRFUNC, 0)
+ ? (*pglob->gl_opendir) (directory)
+ : opendir (directory));
+ if (stream == NULL)
{
- /* This is a special case for matching directories like in
- "*a/". */
- names = (struct globlink *) __alloca (sizeof (struct globlink));
- names->name = (char *) malloc (1);
- if (names->name == NULL)
- goto memory_error;
- names->name[0] = '\0';
- names->next = NULL;
- nfound = 1;
- meta = 0;
+ if (errno != ENOTDIR
+ && ((errfunc != NULL && (*errfunc) (directory, errno))
+ || (flags & GLOB_ERR)))
+ return GLOB_ABORTED;
}
else
{
- stream = ((flags & GLOB_ALTDIRFUNC)
- ? (*pglob->gl_opendir) (directory)
- : (__ptr_t) opendir (directory));
- if (stream == NULL)
- {
- if (errno != ENOTDIR
- && ((errfunc != NULL && (*errfunc) (directory, errno))
- || (flags & GLOB_ERR)))
- return GLOB_ABORTED;
- nfound = 0;
- meta = 0;
- }
- else
- {
- int fnm_flags = ((!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0)
- | ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)
+#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
+ | FNM_CASEFOLD
#endif
- );
- nfound = 0;
- flags |= GLOB_MAGCHAR;
+ );
+ flags |= GLOB_MAGCHAR;
- while (1)
+ while (1)
+ {
+ const char *name;
+ size_t len;
+#if defined _LIBC && !defined COMPILE_GLOB64
+ struct dirent64 *d;
+ union
{
- const char *name;
- size_t len;
-#if defined HAVE_DIRENT64 && !defined COMPILE_GLOB64
- struct dirent64 *d;
- union
- {
- struct dirent64 d64;
- char room [offsetof (struct dirent64, d_name[0])
- + NAME_MAX + 1];
- }
- d64buf;
+ struct dirent64 d64;
+ char room [offsetof (struct dirent64, d_name[0])
+ + NAME_MAX + 1];
+ }
+ d64buf;
- if (flags & GLOB_ALTDIRFUNC)
+ if (__glibc_unlikely (flags & GLOB_ALTDIRFUNC))
+ {
+ struct dirent *d32 = (*pglob->gl_readdir) (stream);
+ if (d32 != NULL)
{
- struct dirent *d32 = (*pglob->gl_readdir) (stream);
- if (d32 != NULL)
- {
- CONVERT_DIRENT_DIRENT64 (&d64buf.d64, d32);
- d = &d64buf.d64;
- }
- else
- d = NULL;
+ CONVERT_DIRENT_DIRENT64 (&d64buf.d64, d32);
+ d = &d64buf.d64;
}
else
- d = __readdir64 ((DIR *) stream);
+ d = NULL;
+ }
+ else
+ d = __readdir64 (stream);
#else
- struct dirent *d = ((flags & GLOB_ALTDIRFUNC)
- ? ((struct dirent *)
- (*pglob->gl_readdir) (stream))
- : __readdir ((DIR *) stream));
-#endif
- if (d == NULL)
- break;
- if (! REAL_DIR_ENTRY (d))
- continue;
-
-#ifdef HAVE_D_TYPE
- /* If we shall match only directories use the information
- provided by the dirent call if possible. */
- if ((flags & GLOB_ONLYDIR)
- && d->d_type != DT_UNKNOWN
- && d->d_type != DT_DIR
- && d->d_type != DT_LNK)
- continue;
+ 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;
- name = d->d_name;
+ /* 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;
- if (fnmatch (pattern, name, fnm_flags) == 0)
+ 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 the file we found is a symlink we have to
- make sure the target file exists. */
- if (
-#ifdef HAVE_D_TYPE
- (d->d_type != DT_UNKNOWN && d->d_type != DT_LNK) ||
-#endif
- link_exists_p (directory, dirlen, name, pglob,
- flags))
+ if (cur == names->count)
{
- struct globlink *new = (struct globlink *)
- __alloca (sizeof (struct globlink));
- len = NAMLEN (d);
- new->name = (char *) malloc (len + 1);
- if (new->name == NULL)
+ struct globnames *newnames;
+ size_t count = names->count * 2;
+ size_t size = (sizeof (struct globnames)
+ + ((count - INITIAL_COUNT)
+ * sizeof (char *)));
+ if (__libc_use_alloca (alloca_used + size))
+ newnames = names_alloca
+ = alloca_account (size, alloca_used);
+ else if ((newnames = malloc (size))
+ == NULL)
goto memory_error;
-#ifdef HAVE_MEMPCPY
- *((char *) mempcpy ((__ptr_t) new->name, name, len))
- = '\0';
-#else
- memcpy ((__ptr_t) new->name, name, len);
- new->name[len] = '\0';
-#endif
- new->next = names;
- names = new;
- ++nfound;
+ 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;
}
}
}
{
size_t len = strlen (pattern);
nfound = 1;
- names = (struct globlink *) __alloca (sizeof (struct globlink));
- names->next = NULL;
- names->name = (char *) malloc (len + 1);
- if (names->name == NULL)
+ names->name[cur] = (char *) malloc (len + 1);
+ if (names->name[cur] == NULL)
goto memory_error;
-#ifdef HAVE_MEMPCPY
- *((char *) mempcpy (names->name, pattern, len)) = '\0';
-#else
- memcpy (names->name, pattern, len);
- names->name[len] = '\0';
-#endif
+ *((char *) mempcpy (names->name[cur++], pattern, len)) = '\0';
}
+ int result = GLOB_NOMATCH;
if (nfound != 0)
{
- char **new_gl_pathv;
+ result = 0;
+
+ if (pglob->gl_pathc > UINTPTR_MAX - pglob->gl_offs
+ || pglob->gl_pathc + pglob->gl_offs > UINTPTR_MAX - nfound
+ || pglob->gl_pathc + pglob->gl_offs + nfound > UINTPTR_MAX - 1
+ || (pglob->gl_pathc + pglob->gl_offs + nfound + 1
+ > UINTPTR_MAX / sizeof (char *)))
+ goto memory_error;
+ 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)
- goto memory_error;
- pglob->gl_pathv = new_gl_pathv;
+ {
+ 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);
+ }
- for (; names != NULL; names = names->next)
- pglob->gl_pathv[pglob->gl_offs + pglob->gl_pathc++] = names->name;
- pglob->gl_pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
+ pglob->gl_pathv = new_gl_pathv;
+
+ pglob->gl_pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
- pglob->gl_flags = flags;
+ pglob->gl_flags = flags;
+ }
}
- save = errno;
if (stream != NULL)
{
- if (flags & GLOB_ALTDIRFUNC)
+ save = errno;
+ if (__glibc_unlikely (flags & GLOB_ALTDIRFUNC))
(*pglob->gl_closedir) (stream);
else
- closedir ((DIR *) stream);
+ closedir (stream);
+ __set_errno (save);
}
- __set_errno (save);
-
- return nfound == 0 ? GLOB_NOMATCH : 0;
- memory_error:
- {
- int save = errno;
- if (flags & GLOB_ALTDIRFUNC)
- (*pglob->gl_closedir) (stream);
- else
- closedir ((DIR *) stream);
- __set_errno (save);
- }
- while (names != NULL)
- {
- if (names->name != NULL)
- free ((__ptr_t) names->name);
- names = names->next;
- }
- return GLOB_NOSPACE;
+ return result;
}
-
-#endif /* Not ELIDE_CODE. */