forked from acouzens/open5gs
76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
/*
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* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
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*
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* This file is part of Open5GS.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "ogs-core.h"
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#define PATH_SEPARATOR '/'
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/* Remove trailing separators that don't affect the meaning of PATH. */
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static void path_canonicalize(char *dir)
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{
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/* At some point this could eliminate redundant components. For
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* now, it just makes sure there is no trailing slash. */
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size_t len = strlen (dir);
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size_t orig_len = len;
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ogs_assert(dir);
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while ((len > 0) && (dir[len - 1] == PATH_SEPARATOR))
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len--;
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if (len != orig_len)
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dir[len] = 0;
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}
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/* Remove one component off the end of PATH. */
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void ogs_path_remove_last_component(char *dir, const char *path)
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{
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int i;
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int len = 0;
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ogs_assert(dir);
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ogs_assert(path);
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strcpy(dir, path);
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path_canonicalize (dir);
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for (i = (strlen(dir) - 1); i >= 0; i--) {
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if (path[i] == PATH_SEPARATOR)
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break;
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}
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len = (i < 0) ? 0 : i;
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dir[len] = 0;
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}
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bool ogs_path_is_absolute(const char *filename)
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{
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ogs_assert(filename);
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if (OGS_IS_DIR_SEPARATOR(filename[0]))
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return true;
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#if defined(_WIN32)
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if (isalpha(filename[0]) &&
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filename[1] == ':' && OGS_IS_DIR_SEPARATOR(filename[2]))
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return true;
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#endif
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return false;
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}
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