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import of dnsmasq-2.17.tar.gz

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This commit is contained in:
Simon Kelley
2004-11-14 16:43:54 +00:00
parent fd9fa4811d
commit 26128d2747
15 changed files with 548 additions and 354 deletions
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9
src/dhcp.c
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@@ -47,6 +47,8 @@ void dhcp_init(struct daemon *daemon)
daemon->dhcpfd = fd;
if ((fd = socket (AF_INET, SOCK_RAW, IPPROTO_ICMP)) == -1 ||
(flags = fcntl(fd, F_GETFL, 0)) == -1 ||
fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1 ||
setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &oneopt, sizeof(oneopt)) ||
setsockopt(fd, SOL_SOCKET, SO_DONTROUTE, &zeroopt, sizeof(zeroopt)) == -1)
die("cannot create ICMP raw socket: %s.", NULL);
@@ -73,8 +75,6 @@ void dhcp_init(struct daemon *daemon)
socket receive buffer size to one to avoid that. (zero is
rejected as non-sensical by some BSD kernels) */
if ((fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETHERTYPE_IP))) == -1 ||
(flags = fcntl(fd, F_GETFL, 0)) == -1 ||
fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1 ||
setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &oneopt, sizeof(oneopt)) == -1)
die("cannot create DHCP packet socket: %s. "
"Is CONFIG_PACKET enabled in your kernel?", NULL);
@@ -358,8 +358,7 @@ void dhcp_packet(struct daemon *daemon, time_t now)
iov[0].iov_len = sizeof(struct ether_header);
iov[1].iov_base = (char *)rawpacket;
iov[1].iov_len = ntohs(rawpacket->ip.ip_len);
while (writev(daemon->dhcp_raw_fd, iov, 2) == -1 &&
errno == EINTR);
while (writev(daemon->dhcp_raw_fd, iov, 2) == -1 && retry_send());
#else
struct sockaddr_ll dest;
@@ -370,7 +369,7 @@ void dhcp_packet(struct daemon *daemon, time_t now)
memcpy(dest.sll_addr, hwdest, ETHER_ADDR_LEN);
while (sendto(daemon->dhcp_raw_fd, rawpacket, ntohs(rawpacket->ip.ip_len),
0, (struct sockaddr *)&dest, sizeof(dest)) == -1 &&
errno == EINTR);
retry_send());
#endif
}
}