forked from acouzens/open5gs
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Copyright (C) 2019-2020 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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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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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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