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introduce setsockopt_reuseaddr(int fd), setsockopt_broadcast(int fd),

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use them where appropriate. 200 bytes saved
This commit is contained in:
Denis Vlasenko
2006-11-22 23:22:06 +00:00
parent b40bdb383a
commit 48237b0c88
16 changed files with 40 additions and 42 deletions
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7
networking/udhcp/arpping.c
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@@ -44,9 +44,7 @@ struct arpMsg {
/* FIXME: match response against chaddr */
int arpping(uint32_t yiaddr, uint32_t ip, uint8_t *mac, char *interface)
{
int timeout = 2;
int optval = 1;
int s; /* socket */
int rv = 1; /* return value */
struct sockaddr addr; /* for interface name */
@@ -56,12 +54,13 @@ int arpping(uint32_t yiaddr, uint32_t ip, uint8_t *mac, char *interface)
time_t prevTime;
if ((s = socket(PF_PACKET, SOCK_PACKET, htons(ETH_P_ARP))) == -1) {
s = socket(PF_PACKET, SOCK_PACKET, htons(ETH_P_ARP));
if (s == -1) {
bb_perror_msg(bb_msg_can_not_create_raw_socket);
return -1;
}
if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, &optval, sizeof(optval)) == -1) {
if (setsockopt_broadcast(s) == -1) {
bb_perror_msg("cannot setsocketopt on raw socket");
close(s);
return -1;