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Fix MAC address parsing

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This commit is contained in:
Joseph C. Lehner 2016-01-25 14:18:46 +01:00
parent 4d69e844c4
commit 6e5156e137
1 changed files with 5 additions and 6 deletions
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11
nmrp.c
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@ -246,12 +246,13 @@ static int sock_bind_to_intf(int sock, const char *name)
static int mac_parse(const char *str, uint8_t *hwaddr) static int mac_parse(const char *str, uint8_t *hwaddr)
{ {
unsigned i, data[6]; int i;
unsigned data[6];
i = sscanf(str, "%02x:%02x:%02x:%02x:%02x:%02x", sscanf(str, "%02x:%02x:%02x:%02x:%02x:%02x%n",
data, data + 1, data + 2, data + 3, data + 4, data + 5); data, data + 1, data + 2, data + 3, data + 4, data + 5, &i);
if (i == 6) { if (i == strlen(str)) {
for (i = 0; i != 6; ++i) { for (i = 0; i != 6; ++i) {
if (data[i] > 255) { if (data[i] > 255) {
break; break;
@ -264,8 +265,6 @@ static int mac_parse(const char *str, uint8_t *hwaddr)
return 1; return 1;
} }
} }
fprintf(stderr, "Invalid MAC address.\n");
return 0; return 0;
} }