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| author | Denis Vlasenko | 2006-11-22 23:22:06 +0000 |
|---|---|---|
| committer | Denis Vlasenko | 2006-11-22 23:22:06 +0000 |
| commit | 48237b0c88343154d58854020c3a9c8b07c61b10 (patch) | |
| tree | b36bc84f22dd797b45c8d665e50e2f6c690e1370 /networking/udhcp/arpping.c | |
| parent | b40bdb383a6b7a7f0fd36d0b1cc24deb42cd5f0d (diff) | |
| download | busybox-48237b0c88343154d58854020c3a9c8b07c61b10.zip busybox-48237b0c88343154d58854020c3a9c8b07c61b10.tar.gz | |
introduce setsockopt_reuseaddr(int fd), setsockopt_broadcast(int fd),
use them where appropriate. 200 bytes saved
Diffstat (limited to 'networking/udhcp/arpping.c')
| -rw-r--r-- | networking/udhcp/arpping.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/networking/udhcp/arpping.c b/networking/udhcp/arpping.c index 471e36d..9c8b9c5 100644 --- a/networking/udhcp/arpping.c +++ b/networking/udhcp/arpping.c @@ -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; |