efeb8bffe3
Convert ipfilter userland function declarations from K&R to ANSI. This syncs our function declarations with NetBSD hg commit 75edcd7552a0 (apply our changes). Though not copied from NetBSD, this change was partially inspired by NetBSD's work and inspired by style(9). Reviewed by: glebius (for #network) MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D33595
91 lines
1.7 KiB
C
91 lines
1.7 KiB
C
/* $FreeBSD$ */
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/*
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* (C)opyright 2000 Darren Reed.
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*
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* See the IPFILTER.LICENCE file for details on licencing.
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*
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* WARNING: Attempting to use this .c file on HP-UX 11.00 will cause the
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* system to crash.
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*/
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/if_ether.h>
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#include <netinet/ip_var.h>
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#include <netinet/udp.h>
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#include <netinet/udp_var.h>
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#include <netinet/tcp.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <errno.h>
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#include "ipsend.h"
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#if !defined(lint) && defined(LIBC_SCCS)
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static char sirix[] = "@(#)sirix.c 1.0 10/9/97 (C)1997 Marc Boucher";
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#endif
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int
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initdevice(char *device, int tout)
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{
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struct sockaddr s;
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struct ifreq ifr;
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int fd;
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memset(&ifr, 0, sizeof(ifr));
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strncpy(ifr.ifr_name, device, sizeof ifr.ifr_name);
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if ((fd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0)
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{
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perror("socket(AF_INET, SOCK_RAW, IPPROTO_RAW)");
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return -1;
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}
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if (ioctl(fd, SIOCGIFADDR, &ifr) == -1)
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{
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perror("ioctl SIOCGIFADDR");
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return -1;
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}
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bzero((char *)&s, sizeof(s));
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s.sa_family = AF_INET;
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bcopy(&ifr.ifr_addr, s.sa_data, 4);
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if (bind(fd, &s, sizeof(s)) == -1)
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perror("bind");
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return fd;
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}
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/*
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* output an IP packet
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*/
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int sendip(int fd, char *pkt, int len)
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{
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struct ether_header *eh;
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struct sockaddr_in sin;
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eh = (struct ether_header *)pkt;
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bzero((char *)&sin, sizeof(sin));
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sin.sin_family = AF_INET;
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pkt += 14;
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len -= 14;
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bcopy(pkt + 12, (char *)&sin.sin_addr, 4);
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if (sendto(fd, pkt, len, 0, &sin, sizeof(sin)) == -1)
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{
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perror("send");
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return -1;
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}
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return len;
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}
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