65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/*
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* Copyright (C) 2011 Marcin Kościelnicki <koriakin@0x04.net>
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "util.h"
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#include <string.h>
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FILE *find_in_path(const char *name, const char *path, char **pfullname) {
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if (!path)
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return 0;
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while (path) {
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const char *npath = strchr(path, ':');
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size_t plen;
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if (npath) {
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plen = npath - path;
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npath++;
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} else {
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plen = strlen(path);
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}
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if (plen) {
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/* also look for .gz compressed xml: */
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const char *exts[] = { "", ".gz" };
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for (int i = 0; i < ARRAY_SIZE(exts); i++) {
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char *fullname;
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int ret = asprintf(&fullname, "%.*s/%s%s", (int)plen, path, name, exts[i]);
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if (ret < 0)
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return NULL;
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FILE *file = fopen(fullname, "r");
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if (file) {
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if (pfullname)
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*pfullname = fullname;
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else
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free(fullname);
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return file;
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}
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free(fullname);
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}
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}
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path = npath;
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}
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return 0;
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}
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