76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
|
/*
|
||
|
* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
|
||
|
*
|
||
|
* This file is part of Open5GS.
|
||
|
*
|
||
|
* This program is free software: you can redistribute it and/or modify
|
||
|
* it under the terms of the GNU Affero 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 <https://www.gnu.org/licenses/>.
|
||
|
*/
|
||
|
|
||
|
#include "ogs-core.h"
|
||
|
|
||
|
#define PATH_SEPARATOR '/'
|
||
|
|
||
|
/* Remove trailing separators that don't affect the meaning of PATH. */
|
||
|
static void path_canonicalize(char *dir)
|
||
|
{
|
||
|
/* At some point this could eliminate redundant components. For
|
||
|
* now, it just makes sure there is no trailing slash. */
|
||
|
size_t len = strlen (dir);
|
||
|
size_t orig_len = len;
|
||
|
|
||
|
ogs_assert(dir);
|
||
|
|
||
|
while ((len > 0) && (dir[len - 1] == PATH_SEPARATOR))
|
||
|
len--;
|
||
|
|
||
|
if (len != orig_len)
|
||
|
dir[len] = 0;
|
||
|
}
|
||
|
|
||
|
/* Remove one component off the end of PATH. */
|
||
|
void ogs_path_remove_last_component(char *dir, const char *path)
|
||
|
{
|
||
|
int i;
|
||
|
int len = 0;
|
||
|
|
||
|
ogs_assert(dir);
|
||
|
ogs_assert(path);
|
||
|
|
||
|
strcpy(dir, path);
|
||
|
path_canonicalize (dir);
|
||
|
for (i = (strlen(dir) - 1); i >= 0; i--) {
|
||
|
if (path[i] == PATH_SEPARATOR)
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
len = (i < 0) ? 0 : i;
|
||
|
dir[len] = 0;
|
||
|
}
|
||
|
|
||
|
bool ogs_path_is_absolute(const char *filename)
|
||
|
{
|
||
|
ogs_assert(filename);
|
||
|
|
||
|
if (OGS_IS_DIR_SEPARATOR(filename[0]))
|
||
|
return true;
|
||
|
|
||
|
#if defined(_WIN32)
|
||
|
if (isalpha(filename[0]) &&
|
||
|
filename[1] == ':' && OGS_IS_DIR_SEPARATOR(filename[2]))
|
||
|
return true;
|
||
|
#endif
|
||
|
|
||
|
return false;
|
||
|
}
|