1 /*
2 * Copyright (C) 2009 Dan Carpenter.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see http://www.gnu.org/copyleft/gpl.txt
16 */
17
18 #include <string.h>
19 #include <fcntl.h>
20 #include <unistd.h>
21 #include "parse.h"
22 #include "smatch.h"
23
open_data_file(const char * filename)24 int open_data_file(const char *filename)
25 {
26 char buf[256];
27 int fd;
28
29 fd = open(filename, O_RDONLY);
30 if (fd >= 0)
31 return fd;
32 if (!data_dir)
33 return -1;
34 snprintf(buf, 256, "%s/%s", data_dir, filename);
35 return open(buf, O_RDONLY);
36 }
37
open_schema_file(const char * schema)38 int open_schema_file(const char *schema)
39 {
40 char buf[256];
41 int fd;
42
43 fd = open_data_file(schema);
44 if (fd >= 0)
45 return fd;
46 snprintf(buf, 256, "%s/smatch_data/%s", bin_dir, schema);
47 return open(buf, O_RDONLY);
48 }
49
get_tokens_file(const char * filename)50 struct token *get_tokens_file(const char *filename)
51 {
52 int fd;
53 struct token *token;
54
55 if (option_no_data)
56 return NULL;
57 fd = open_data_file(filename);
58 if (fd < 0)
59 return NULL;
60 token = tokenize(filename, fd, NULL, NULL);
61 close(fd);
62 return token;
63 }
64