X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/7aa420ce9f2c55049b061c7df836ccc990303ebf..c223bc0c14861540d5c08d4f187c0433261c17cc:/icmp.c?ds=inline diff --git a/icmp.c b/icmp.c index 853d665..6db1a2c 100644 --- a/icmp.c +++ b/icmp.c @@ -1,6 +1,6 @@ // L2TPNS: icmp -char const *cvs_id_icmp = "$Id: icmp.c,v 1.3 2004-06-28 02:43:13 fred_nerk Exp $"; +char const *cvs_id_icmp = "$Id: icmp.c,v 1.5 2004-11-16 07:54:32 bodea Exp $"; #include #include @@ -17,7 +17,7 @@ char const *cvs_id_icmp = "$Id: icmp.c,v 1.3 2004-06-28 02:43:13 fred_nerk Exp $ #include "l2tpns.h" -__u16 _checksum(unsigned char *addr, int count); +static __u16 _checksum(unsigned char *addr, int count); void host_unreachable(ipt destination, u16 id, ipt source, char *packet, int packet_len) { @@ -28,8 +28,9 @@ void host_unreachable(ipt destination, u16 id, ipt source, char *packet, int pac int len = 0, on = 1, icmp_socket; struct sockaddr_in whereto = {0}; - if (!(icmp_socket = socket(AF_INET, SOCK_RAW, IPPROTO_RAW))) + if ((icmp_socket = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0) return; + setsockopt(icmp_socket, IPPROTO_IP, IP_HDRINCL, (char *)&on, sizeof(on)); whereto.sin_addr.s_addr = destination; @@ -67,7 +68,7 @@ void host_unreachable(ipt destination, u16 id, ipt source, char *packet, int pac close(icmp_socket); } -__u16 _checksum(unsigned char *addr, int count) +static __u16 _checksum(unsigned char *addr, int count) { register long sum = 0;