1 /*
2 * Copyright (c) 2017 Cyril Hrubis <chrubis@suse.cz>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (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
12 * the 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, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #ifndef LTP_AIODIO_COMMON_CHECKZERO
20 #define LTP_AIODIO_COMMON_CHECKZERO
21
check_zero(char * buf,int size)22 static char *check_zero(char *buf, int size)
23 {
24 char *p;
25
26 p = buf;
27
28 while (size > 0) {
29 if (*buf != 0) {
30 fprintf(stderr, "non zero buffer at buf[%u] => 0x%02x,%02x,%02x,%02x\n",
31 (unsigned int)(buf - p),
32 (unsigned int)buf[0],
33 size > 1 ? (unsigned int)buf[1] : 0,
34 size > 2 ? (unsigned int)buf[2] : 0,
35 size > 3 ? (unsigned int)buf[3] : 0);
36 return buf;
37 }
38 buf++;
39 size--;
40 }
41
42 return NULL;
43 }
44
45 #endif /* LTP_AIODIO_COMMON_CHECKZERO */
46