--- /dev/null
+/* -*- buffer-read-only: t -*- vi: set ro: */
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* Return the canonical absolute name of a given file.
+ Copyright (C) 1996-2010 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
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _LIBC
+# 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 <alloca.h>
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+#if HAVE_SYS_PARAM_H || defined _LIBC
+# include <sys/param.h>
+#endif
+#include <sys/stat.h>
+#include <errno.h>
+#include <stddef.h>
+
+#ifdef _LIBC
+# include <shlib-compat.h>
+#else
+# define SHLIB_COMPAT(lib, introduced, obsoleted) 0
+# 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
+# define __realpath realpath
+# 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)
+# else
+# define __getcwd getcwd
+# endif
+# else
+# define __getcwd(buf, max) getwd (buf)
+# endif
+# define __readlink readlink
+# define __set_errno(e) errno = (e)
+/* Use the system functions, not the gnulib overrides in this file. */
+# undef malloc
+# ifndef MAXSYMLINKS
+# ifdef SYMLOOP_MAX
+# define MAXSYMLINKS SYMLOOP_MAX
+# else
+# define MAXSYMLINKS 20
+# endif
+# endif
+#endif
+
+#ifndef DOUBLE_SLASH_IS_DISTINCT_ROOT
+# define DOUBLE_SLASH_IS_DISTINCT_ROOT 0
+#endif
+
+#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
+ 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'
+ 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
+ that cannot be resolved. If the path can be resolved, RESOLVED
+ holds the same value as the value returned. */
+
+char *
+__realpath (const char *name, char *resolved)
+{
+ char *rpath, *dest, *extra_buf = NULL;
+ const char *start, *end, *rpath_limit;
+ long int path_max;
+ int num_links = 0;
+
+ if (name == NULL)
+ {
+ /* As per Single Unix Specification V2 we must return an error if
+ either parameter is a null pointer. We extend this to allow
+ the RESOLVED parameter to be NULL in case the we are expected to
+ allocate the room for the return value. */
+ __set_errno (EINVAL);
+ return NULL;
+ }
+
+ if (name[0] == '\0')
+ {
+ /* As per Single Unix Specification V2 we must return an error if
+ the name argument points to an empty string. */
+ __set_errno (ENOENT);
+ return NULL;
+ }
+
+#ifdef PATH_MAX
+ path_max = PATH_MAX;
+#else
+ path_max = pathconf (name, _PC_PATH_MAX);
+ if (path_max <= 0)
+ path_max = 1024;
+#endif
+
+ if (resolved == NULL)
+ {
+ rpath = malloc (path_max);
+ if (rpath == NULL)
+ {
+ /* It's easier to set errno to ENOMEM than to rely on the
+ 'malloc-posix' gnulib module. */
+ errno = ENOMEM;
+ return NULL;
+ }
+ }
+ else
+ rpath = resolved;
+ rpath_limit = rpath + path_max;
+
+ if (name[0] != '/')
+ {
+ if (!__getcwd (rpath, path_max))
+ {
+ rpath[0] = '\0';
+ goto error;
+ }
+ dest = strchr (rpath, '\0');
+ }
+ else
+ {
+ rpath[0] = '/';
+ dest = rpath + 1;
+ if (DOUBLE_SLASH_IS_DISTINCT_ROOT && name[1] == '/')
+ *dest++ = '/';
+ }
+
+ for (start = end = name; *start; start = end)
+ {
+#ifdef _LIBC
+ struct stat64 st;
+#else
+ struct stat st;
+#endif
+ int n;
+
+ /* Skip sequence of multiple path-separators. */
+ while (*start == '/')
+ ++start;
+
+ /* Find end of path component. */
+ for (end = start; *end && *end != '/'; ++end)
+ /* Nothing. */;
+
+ if (end - start == 0)
+ break;
+ else if (end - start == 1 && start[0] == '.')
+ /* nothing */;
+ else if (end - start == 2 && start[0] == '.' && start[1] == '.')
+ {
+ /* Back up to previous component, ignore if at root already. */
+ if (dest > rpath + 1)
+ while ((--dest)[-1] != '/');
+ if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rpath + 1
+ && *dest == '/')
+ dest++;
+ }
+ else
+ {
+ size_t new_size;
+
+ if (dest[-1] != '/')
+ *dest++ = '/';
+
+ if (dest + (end - start) >= rpath_limit)
+ {
+ ptrdiff_t dest_offset = dest - rpath;
+ char *new_rpath;
+
+ if (resolved)
+ {
+ __set_errno (ENAMETOOLONG);
+ if (dest > rpath + 1)
+ dest--;
+ *dest = '\0';
+ goto error;
+ }
+ new_size = rpath_limit - rpath;
+ if (end - start + 1 > path_max)
+ new_size += end - start + 1;
+ else
+ new_size += path_max;
+ new_rpath = (char *) realloc (rpath, new_size);
+ if (new_rpath == NULL)
+ {
+ /* It's easier to set errno to ENOMEM than to rely on the
+ 'realloc-posix' gnulib module. */
+ errno = ENOMEM;
+ goto error;
+ }
+ rpath = new_rpath;
+ rpath_limit = rpath + new_size;
+
+ dest = rpath + dest_offset;
+ }
+
+#ifdef _LIBC
+ dest = __mempcpy (dest, start, end - start);
+#else
+ memcpy (dest, start, end - start);
+ dest += end - start;
+#endif
+ *dest = '\0';
+
+#ifdef _LIBC
+ if (__lxstat64 (_STAT_VER, rpath, &st) < 0)
+#else
+ if (lstat (rpath, &st) < 0)
+#endif
+ goto error;
+
+ if (S_ISLNK (st.st_mode))
+ {
+ char *buf;
+ size_t len;
+
+ if (++num_links > MAXSYMLINKS)
+ {
+ __set_errno (ELOOP);
+ goto error;
+ }
+
+ buf = malloca (path_max);
+ if (!buf)
+ {
+ errno = ENOMEM;
+ goto error;
+ }
+
+ n = __readlink (rpath, buf, path_max - 1);
+ if (n < 0)
+ {
+ int saved_errno = errno;
+ freea (buf);
+ errno = saved_errno;
+ goto error;
+ }
+ buf[n] = '\0';
+
+ if (!extra_buf)
+ {
+ extra_buf = malloca (path_max);
+ if (!extra_buf)
+ {
+ freea (buf);
+ errno = ENOMEM;
+ goto error;
+ }
+ }
+
+ len = strlen (end);
+ if ((long int) (n + len) >= path_max)
+ {
+ freea (buf);
+ __set_errno (ENAMETOOLONG);
+ goto error;
+ }
+
+ /* Careful here, end may be a pointer into extra_buf... */
+ memmove (&extra_buf[n], end, len + 1);
+ name = end = memcpy (extra_buf, buf, n);
+
+ if (buf[0] == '/')
+ {
+ dest = rpath + 1; /* It's an absolute symlink */
+ if (DOUBLE_SLASH_IS_DISTINCT_ROOT && buf[1] == '/')
+ *dest++ = '/';
+ }
+ else
+ {
+ /* Back up to previous component, ignore if at root
+ already: */
+ if (dest > rpath + 1)
+ while ((--dest)[-1] != '/');
+ if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rpath + 1
+ && *dest == '/')
+ dest++;
+ }
+ }
+ else if (!S_ISDIR (st.st_mode) && *end != '\0')
+ {
+ __set_errno (ENOTDIR);
+ goto error;
+ }
+ }
+ }
+ if (dest > rpath + 1 && dest[-1] == '/')
+ --dest;
+ if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rpath + 1 && *dest == '/')
+ dest++;
+ *dest = '\0';
+
+ if (extra_buf)
+ freea (extra_buf);
+
+ return rpath;
+
+error:
+ {
+ int saved_errno = errno;
+ if (extra_buf)
+ freea (extra_buf);
+ if (resolved == NULL)
+ free (rpath);
+ errno = saved_errno;
+ }
+ return NULL;
+}
+versioned_symbol (libc, __realpath, realpath, GLIBC_2_3);
+#endif /* !FUNC_REALPATH_WORKS || defined _LIBC */
+
+
+#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3)
+char *
+attribute_compat_text_section
+__old_realpath (const char *name, char *resolved)
+{
+ if (resolved == NULL)
+ {
+ __set_errno (EINVAL);
+ return NULL;
+ }
+
+ return __realpath (name, resolved);
+}
+compat_symbol (libc, __old_realpath, realpath, GLIBC_2_0);
+#endif
+
+
+char *
+__canonicalize_file_name (const char *name)
+{
+ return __realpath (name, NULL);
+}
+weak_alias (__canonicalize_file_name, canonicalize_file_name)
+
+#else
+
+/* This declaration is solely to ensure that after preprocessing
+ this file is never empty. */
+typedef int dummy;
+
+#endif
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