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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/socket.c
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@ -93,7 +93,6 @@ int listen_socket(uint32_t ip, int port, char *inf)
struct ifreq interface;
int fd;
struct sockaddr_in addr;
int n = 1;
DEBUG("Opening listen socket on 0x%08x:%d %s", ip, port, inf);
fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
@ -107,17 +106,17 @@ int listen_socket(uint32_t ip, int port, char *inf)
addr.sin_port = htons(port);
addr.sin_addr.s_addr = ip;
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &n, sizeof(n)) == -1) {
if (setsockopt_reuseaddr(fd) == -1) {
close(fd);
return -1;
}
if (setsockopt(fd, SOL_SOCKET, SO_BROADCAST, (char *) &n, sizeof(n)) == -1) {
if (setsockopt_broadcast(fd) == -1) {
close(fd);
return -1;
}
strncpy(interface.ifr_name, inf, IFNAMSIZ);
if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE,(char *)&interface, sizeof(interface)) < 0) {
if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, (char *)&interface, sizeof(interface)) < 0) {
close(fd);
return -1;
}