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Diffstat (limited to 'src/basic/ether-addr-util.c')
| -rw-r--r-- | src/basic/ether-addr-util.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/src/basic/ether-addr-util.c b/src/basic/ether-addr-util.c deleted file mode 100644 index 5697e8d132..0000000000 --- a/src/basic/ether-addr-util.c +++ /dev/null @@ -1,125 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2014 Tom Gundersen - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <net/ethernet.h> -#include <stdio.h> -#include <sys/types.h> - -#include "ether-addr-util.h" -#include "macro.h" -#include "string-util.h" - -char* ether_addr_to_string(const struct ether_addr *addr, char buffer[ETHER_ADDR_TO_STRING_MAX]) { - assert(addr); - assert(buffer); - - /* Like ether_ntoa() but uses %02x instead of %x to print - * ethernet addresses, which makes them look less funny. Also, - * doesn't use a static buffer. */ - - sprintf(buffer, "%02x:%02x:%02x:%02x:%02x:%02x", - addr->ether_addr_octet[0], - addr->ether_addr_octet[1], - addr->ether_addr_octet[2], - addr->ether_addr_octet[3], - addr->ether_addr_octet[4], - addr->ether_addr_octet[5]); - - return buffer; -} - -bool ether_addr_equal(const struct ether_addr *a, const struct ether_addr *b) { - assert(a); - assert(b); - - return a->ether_addr_octet[0] == b->ether_addr_octet[0] && - a->ether_addr_octet[1] == b->ether_addr_octet[1] && - a->ether_addr_octet[2] == b->ether_addr_octet[2] && - a->ether_addr_octet[3] == b->ether_addr_octet[3] && - a->ether_addr_octet[4] == b->ether_addr_octet[4] && - a->ether_addr_octet[5] == b->ether_addr_octet[5]; -} - -int ether_addr_from_string(const char *s, struct ether_addr *ret, size_t *offset) { - size_t pos = 0, n, field; - char sep = '\0'; - const char *hex = HEXDIGITS, *hexoff; - size_t x; - bool touched; - -#define parse_fields(v) \ - for (field = 0; field < ELEMENTSOF(v); field++) { \ - touched = false; \ - for (n = 0; n < (2 * sizeof(v[0])); n++) { \ - if (s[pos] == '\0') \ - break; \ - hexoff = strchr(hex, s[pos]); \ - if (hexoff == NULL) \ - break; \ - assert(hexoff >= hex); \ - x = hexoff - hex; \ - if (x >= 16) \ - x -= 6; /* A-F */ \ - assert(x < 16); \ - touched = true; \ - v[field] <<= 4; \ - v[field] += x; \ - pos++; \ - } \ - if (!touched) \ - return -EINVAL; \ - if (field < (ELEMENTSOF(v)-1)) { \ - if (s[pos] != sep) \ - return -EINVAL; \ - else \ - pos++; \ - } \ - } - - assert(s); - assert(ret); - - sep = s[strspn(s, hex)]; - if (sep == '\n') - return -EINVAL; - if (strchr(":.-", sep) == NULL) - return -EINVAL; - - if (sep == '.') { - uint16_t shorts[3] = { 0 }; - - parse_fields(shorts); - - for (n = 0; n < ELEMENTSOF(shorts); n++) { - ret->ether_addr_octet[2*n] = ((shorts[n] & (uint16_t)0xff00) >> 8); - ret->ether_addr_octet[2*n + 1] = (shorts[n] & (uint16_t)0x00ff); - } - } else { - struct ether_addr out = { .ether_addr_octet = { 0 } }; - - parse_fields(out.ether_addr_octet); - - for (n = 0; n < ELEMENTSOF(out.ether_addr_octet); n++) - ret->ether_addr_octet[n] = out.ether_addr_octet[n]; - } - - if (offset) - *offset = pos; - return 0; -} |