7b89a0420956ccf407688c95a743f47c1940fd5e
[mesa.git] / src / freedreno / rnn / path.c
1 /*
2 * Copyright (C) 2011 Marcin Koƛcielnicki <koriakin@0x04.net>
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25 #include "util.h"
26 #include <string.h>
27
28 FILE *find_in_path(const char *name, const char *path, char **pfullname) {
29 if (!path)
30 return 0;
31 while (path) {
32 const char *npath = strchr(path, ':');
33 size_t plen;
34 if (npath) {
35 plen = npath - path;
36 npath++;
37 } else {
38 plen = strlen(path);
39 }
40 if (plen) {
41 char *fullname = malloc(strlen(name) + plen + 2);
42 strncpy(fullname, path, plen);
43 fullname[plen] = '/';
44 fullname[plen+1] = 0;
45 strcat(fullname, name);
46 FILE *file = fopen(fullname, "r");
47 if (file) {
48 if (pfullname)
49 *pfullname = fullname;
50 else
51 free(fullname);
52 return file;
53 }
54 free(fullname);
55 }
56 path = npath;
57 }
58 return 0;
59 }