KVM: Update headers (except HIOR mess)
[qemu.git] / net / util.c
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the 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 OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "net/util.h"
26 #include <errno.h>
27 #include <stdlib.h>
28
29 int net_parse_macaddr(uint8_t *macaddr, const char *p)
30 {
31 int i;
32 char *last_char;
33 long int offset;
34
35 errno = 0;
36 offset = strtol(p, &last_char, 0);
37 if (errno == 0 && *last_char == '\0' &&
38 offset >= 0 && offset <= 0xFFFFFF) {
39 macaddr[3] = (offset & 0xFF0000) >> 16;
40 macaddr[4] = (offset & 0xFF00) >> 8;
41 macaddr[5] = offset & 0xFF;
42 return 0;
43 }
44
45 for (i = 0; i < 6; i++) {
46 macaddr[i] = strtol(p, (char **)&p, 16);
47 if (i == 5) {
48 if (*p != '\0') {
49 return -1;
50 }
51 } else {
52 if (*p != ':' && *p != '-') {
53 return -1;
54 }
55 p++;
56 }
57 }
58
59 return 0;
60 }