]>
git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/blob - lib/net_utils.c
1 #include <linux/string.h>
2 #include <linux/if_ether.h>
3 #include <linux/ctype.h>
4 #include <linux/kernel.h>
6 bool mac_pton(const char *s
, u8
*mac
)
10 /* XX:XX:XX:XX:XX:XX */
11 if (strlen(s
) < 3 * ETH_ALEN
- 1)
14 /* Don't dirty result unless string is valid MAC. */
15 for (i
= 0; i
< ETH_ALEN
; i
++) {
16 if (!isxdigit(s
[i
* 3]) || !isxdigit(s
[i
* 3 + 1]))
18 if (i
!= ETH_ALEN
- 1 && s
[i
* 3 + 2] != ':')
21 for (i
= 0; i
< ETH_ALEN
; i
++) {
22 mac
[i
] = (hex_to_bin(s
[i
* 3]) << 4) | hex_to_bin(s
[i
* 3 + 1]);
26 EXPORT_SYMBOL(mac_pton
);