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-rw-r--r--src/libbasic/ether-addr-util.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/src/libbasic/ether-addr-util.c b/src/libbasic/ether-addr-util.c
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+++ b/src/libbasic/ether-addr-util.c
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+/***
+ 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"
+
+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;
+}