diff options
Diffstat (limited to 'contrib/ipfilter/ipsend/sockraw.c')
-rw-r--r-- | contrib/ipfilter/ipsend/sockraw.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/contrib/ipfilter/ipsend/sockraw.c b/contrib/ipfilter/ipsend/sockraw.c new file mode 100644 index 000000000000..822c146f8cf3 --- /dev/null +++ b/contrib/ipfilter/ipsend/sockraw.c @@ -0,0 +1,89 @@ +/* $NetBSD$ */ + +/* + * (C)opyright 2000 Darren Reed. + * + * See the IPFILTER.LICENCE file for details on licencing. + * + * WARNING: Attempting to use this .c file on HP-UX 11.00 will cause the + * system to crash. + */ +#include <sys/param.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/ioctl.h> + +#include <net/if.h> +#include <netinet/in.h> +#include <netinet/in_systm.h> +#include <netinet/ip.h> +#include <netinet/if_ether.h> +#include <netinet/ip_var.h> +#include <netinet/udp.h> +#include <netinet/udp_var.h> +#include <netinet/tcp.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <stdlib.h> +#include <errno.h> +#include "ipsend.h" + +#if !defined(lint) && defined(LIBC_SCCS) +static char sirix[] = "@(#)sirix.c 1.0 10/9/97 (C)1997 Marc Boucher"; +#endif + + +int initdevice(char *device, int tout) +{ + struct sockaddr s; + struct ifreq ifr; + int fd; + + memset(&ifr, 0, sizeof(ifr)); + strncpy(ifr.ifr_name, device, sizeof ifr.ifr_name); + + if ((fd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0) + { + perror("socket(AF_INET, SOCK_RAW, IPPROTO_RAW)"); + return -1; + } + + if (ioctl(fd, SIOCGIFADDR, &ifr) == -1) + { + perror("ioctl SIOCGIFADDR"); + return -1; + } + + bzero((char *)&s, sizeof(s)); + s.sa_family = AF_INET; + bcopy(&ifr.ifr_addr, s.sa_data, 4); + if (bind(fd, &s, sizeof(s)) == -1) + perror("bind"); + return fd; +} + + +/* + * output an IP packet + */ +int sendip(int fd, char *pkt, int len) +{ + struct ether_header *eh; + struct sockaddr_in sin; + + eh = (struct ether_header *)pkt; + bzero((char *)&sin, sizeof(sin)); + sin.sin_family = AF_INET; + pkt += 14; + len -= 14; + bcopy(pkt + 12, (char *)&sin.sin_addr, 4); + + if (sendto(fd, pkt, len, 0, &sin, sizeof(sin)) == -1) + { + perror("send"); + return -1; + } + + return len; +} |