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util: add qemu_ether_ntoa 

This adds a helper to format ethernet MAC address.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
This commit is contained in:
Alexey Kardashevskiy 2014-03-11 10:42:26 +11:00 committed by Amit Shah
parent db237e33c0
commit 4297c8ee6f
2 changed files with 16 additions and 0 deletions
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2
include/qemu-common.h
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@ -472,4 +472,6 @@ size_t buffer_find_nonzero_offset(const void *buf, size_t len);
*/
int parse_debug_env(const char *name, int max, int initial);
const char *qemu_ether_ntoa(const MACAddr *mac);
#endif

14
util/cutils.c
View File

@ -27,6 +27,7 @@
#include "qemu/sockets.h"
#include "qemu/iov.h"
#include "net/net.h"
void strpadcpy(char *buf, int buf_size, const char *str, char pad)
{
@ -530,3 +531,16 @@ int parse_debug_env(const char *name, int max, int initial)
}
return debug;
}
/*
* Helper to print ethernet mac address
*/
const char *qemu_ether_ntoa(const MACAddr *mac)
{
static char ret[18];
snprintf(ret, sizeof(ret), "%02x:%02x:%02x:%02x:%02x:%02x",
mac->a[0], mac->a[1], mac->a[2], mac->a[3], mac->a[4], mac->a[5]);
return ret;
}