1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include <fcntl.h>
4 #include <stdint.h>
5 #include <stdio.h>
6 #include <string.h>
7 #include <sys/stat.h>
8 #include <sys/types.h>
9 #include <unistd.h>
10
11 /*
12 * Get the file size of a given file
13 *
14 * @params fname name of the file relative to the __TEST_DATA_DIR__ directory
15 *
16 * @return On success file size in bytes is returned. On failure -1 is returned.
17 */
test_get_file_size(const char * fname)18 int test_get_file_size(const char *fname)
19 {
20 char path[strlen(__TEST_DATA_DIR__) + strlen(fname) + 2];
21 sprintf(path, "%s/%s", __TEST_DATA_DIR__, fname);
22
23 struct stat st;
24 if (stat(path, &st) == -1)
25 return -1;
26 return st.st_size;
27 }
28
29 /*
30 * Read a file and write its contents into a buffer
31 *
32 * @params fname name of the file relative to the __TEST_DATA_DIR__ directory
33 * @params buf buffer to write file contents into
34 * @params size size of buf
35 *
36 * @return On success number of bytes read is returned. On failure -1 is returned.
37 */
test_read_file(const char * fname,uint8_t * buf,size_t size)38 int test_read_file(const char *fname, uint8_t *buf, size_t size)
39 {
40 char path[strlen(__TEST_DATA_DIR__) + strlen(fname) + 2];
41 sprintf(path, "%s/%s", __TEST_DATA_DIR__, fname);
42
43 int f = open(path, O_RDONLY);
44 if (f == -1)
45 return -1;
46
47 int read_size = read(f, buf, size);
48
49 close(f);
50 return read_size;
51 }
52