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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728// SPDX-License-Identifier: GPL-2.0#include <linux/string.h>#include <linux/if_ether.h>#include <linux/ctype.h>#include <linux/export.h>#include <linux/hex.h>
bool mac_pton(const char *s, u8 *mac){ int i;
if (strnlen(s, MAC_ADDR_STR_LEN) < MAC_ADDR_STR_LEN) return false;
/* Don't dirty result unless string is valid MAC. */ for (i = 0; i < ETH_ALEN; i++) { if (!isxdigit(s[i * 3]) || !isxdigit(s[i * 3 + 1])) return false; if (i != ETH_ALEN - 1 && s[i * 3 + 2] != ':') return false; } for (i = 0; i < ETH_ALEN; i++) { mac[i] = (hex_to_bin(s[i * 3]) << 4) | hex_to_bin(s[i * 3 + 1]); } return true;}EXPORT_SYMBOL(mac_pton);