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/*
* Copyright (c) 1997, 98, 2000, 01
* Motoyuki Kasahara
*
* 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 2, 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.
*/
/*
* This program requires the following Autoconf macros:
* AC_C_CONST
* AC_TYPE_SIZE_T
* AC_HEADER_STDC
* AC_CHECK_HEADERS(string.h, memory.h, unistd.h, limits.h)
* AC_CHECK_FUNCS(strchr, memcpy, getcwd)
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <sys/types.h>
#include <syslog.h>
#if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
#include <string.h>
#if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
#include <memory.h>
#endif /* not STDC_HEADERS and HAVE_MEMORY_H */
#else /* not STDC_HEADERS and not HAVE_STRING_H */
#include <strings.h>
#endif /* not STDC_HEADERS and not HAVE_STRING_H */
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifndef HAVE_STRCHR
#define strchr index
#define strrchr rindex
#endif /* HAVE_STRCHR */
#ifndef HAVE_MEMCPY
#define memcpy(d, s, n) bcopy((s), (d), (n))
#ifdef __STDC__
void *memchr(const void *, int, size_t);
int memcmp(const void *, const void *, size_t);
void *memmove(void *, const void *, size_t);
void *memset(void *, int, size_t);
#else /* not __STDC__ */
char *memchr();
int memcmp();
char *memmove();
char *memset();
#endif /* not __STDC__ */
#endif
#ifndef HAVE_GETCWD
#define getcwd(d,n) getwd(d)
#endif
/*
* The maximum length of a file name.
*/
#ifndef PATH_MAX
#ifdef MAXPATHLEN
#define PATH_MAX MAXPATHLEN
#else /* not MAXPATHLEN */
#define PATH_MAX 1024
#endif /* not MAXPATHLEN */
#endif /* not PATH_MAX */
#ifdef USE_FAKELOG
#include "fakelog.h"
#endif
/*
* Canonicalize `path_name'.
* Convert a path name to an absolute path.
* Return 0 upon success, -1 otherwise.
*/
int
canonicalize_file_name(path_name)
char *path_name;
{
char cwd[PATH_MAX + 1];
char tmp_path_name[PATH_MAX + 1];
size_t path_name_length;
if (*path_name != '/') {
/*
* `path_name' is an relative path. Convert to an absolute
* path.
*/
if (getcwd(cwd, PATH_MAX + 1) == NULL)
return -1;
if (PATH_MAX < strlen(cwd) + 1 + strlen(path_name))
return -1;
sprintf(tmp_path_name, "%s/%s", cwd, path_name);
strcpy(path_name, tmp_path_name);
}
/*
* Unless `path_name' is "/", eliminate `/' in the tail of the
* path name.
*/
path_name_length = strlen(path_name);
if (1 < path_name_length && *(path_name + path_name_length - 1) == '/')
*(path_name + path_name_length - 1) = '\0';
return 0;
}
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