dd4d201ab1
This isn't quite symmetrical to in_addr_from_string() because it also returns an offset indicating how much of the string was consumed by the matched pattern. This offset reporting is needed for either of the following use cases: * verifying the lack of trailing garbage after such an address * parsing subsequent data from the same string
40 lines
1.5 KiB
C
40 lines
1.5 KiB
C
#pragma once
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/***
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This file is part of systemd.
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Copyright 2014 Tom Gundersen
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <net/ethernet.h>
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#include <stdbool.h>
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#define ETHER_ADDR_FORMAT_STR "%02X%02X%02X%02X%02X%02X"
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#define ETHER_ADDR_FORMAT_VAL(x) (x).ether_addr_octet[0], (x).ether_addr_octet[1], (x).ether_addr_octet[2], (x).ether_addr_octet[3], (x).ether_addr_octet[4], (x).ether_addr_octet[5]
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#define ETHER_ADDR_TO_STRING_MAX (3*6)
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char* ether_addr_to_string(const struct ether_addr *addr, char buffer[ETHER_ADDR_TO_STRING_MAX]);
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bool ether_addr_equal(const struct ether_addr *a, const struct ether_addr *b);
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#define ETHER_ADDR_NULL ((const struct ether_addr){})
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static inline bool ether_addr_is_null(const struct ether_addr *addr) {
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return ether_addr_equal(addr, ÐER_ADDR_NULL);
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}
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int ether_addr_from_string(const char *s, struct ether_addr *ret, size_t *offset);
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