/* Return the canonical absolute name of a given file.
- Copyright (C) 1996-2009 Free Software Foundation, Inc.
+ Copyright (C) 1996-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software: you can redistribute it and/or modify
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef _LIBC
+# define _GL_USE_STDLIB_ALLOC 1
# include <config.h>
#endif
#if !HAVE_CANONICALIZE_FILE_NAME || !FUNC_REALPATH_WORKS || defined _LIBC
+/* Don't use __attribute__ __nonnull__ in this compilation unit. Otherwise gcc
+ optimizes away the name == NULL test below. */
+#define _GL_ARG_NONNULL(params)
+
/* Specification. */
#include <stdlib.h>
# include <shlib-compat.h>
#else
# define SHLIB_COMPAT(lib, introduced, obsoleted) 0
-# define versioned_symbol(lib, local, symbol, version)
+# define versioned_symbol(lib, local, symbol, version) extern int dummy
# define compat_symbol(lib, local, symbol, version)
# define weak_alias(local, symbol)
# define __canonicalize_file_name canonicalize_file_name
# include "pathmax.h"
# include "malloca.h"
# if HAVE_GETCWD
+# if IN_RELOCWRAPPER
+ /* When building the relocatable program wrapper, use the system's getcwd
+ function, not the gnulib override, otherwise we would get a link error.
+ */
+# undef getcwd
+# endif
# ifdef VMS
/* We want the directory in Unix syntax, not in VMS syntax. */
# define __getcwd(buf, max) getcwd (buf, max, 0)
#if !FUNC_REALPATH_WORKS || defined _LIBC
/* Return the canonical absolute name of file NAME. A canonical name
- does not contain any `.', `..' components nor any repeated path
+ does not contain any ".", ".." components nor any repeated path
separators ('/') or symlinks. All path components must exist. If
RESOLVED is null, the result is malloc'd; otherwise, if the
- canonical name is PATH_MAX chars or more, returns null with `errno'
+ canonical name is PATH_MAX chars or more, returns null with 'errno'
set to ENAMETOOLONG; if the name fits in fewer than PATH_MAX chars,
returns the name in RESOLVED. If the name cannot be resolved and
RESOLVED is non-NULL, it contains the path of the first component
#else
path_max = pathconf (name, _PC_PATH_MAX);
if (path_max <= 0)
- path_max = 1024;
+ path_max = 8192;
#endif
if (resolved == NULL)
{
rpath[0] = '/';
dest = rpath + 1;
- if (DOUBLE_SLASH_IS_DISTINCT_ROOT && name[1] == '/')
- *dest++ = '/';
+ if (DOUBLE_SLASH_IS_DISTINCT_ROOT)
+ {
+ if (name[1] == '/' && name[2] != '/')
+ *dest++ = '/';
+ *dest = '\0';
+ }
}
for (start = end = name; *start; start = end)
if (dest > rpath + 1)
while ((--dest)[-1] != '/');
if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rpath + 1
- && *dest == '/')
+ && *dest == '/' && dest[1] != '/')
dest++;
}
else
if (buf[0] == '/')
{
dest = rpath + 1; /* It's an absolute symlink */
- if (DOUBLE_SLASH_IS_DISTINCT_ROOT && buf[1] == '/')
- *dest++ = '/';
+ if (DOUBLE_SLASH_IS_DISTINCT_ROOT)
+ {
+ if (buf[1] == '/' && buf[2] != '/')
+ *dest++ = '/';
+ *dest = '\0';
+ }
}
else
{
if (dest > rpath + 1)
while ((--dest)[-1] != '/');
if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rpath + 1
- && *dest == '/')
+ && *dest == '/' && dest[1] != '/')
dest++;
}
}
}
if (dest > rpath + 1 && dest[-1] == '/')
--dest;
- if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rpath + 1 && *dest == '/')
+ if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rpath + 1
+ && *dest == '/' && dest[1] != '/')
dest++;
*dest = '\0';