diff options
Diffstat (limited to 'contrib/ipfilter/ipsend/arp.c')
-rw-r--r-- | contrib/ipfilter/ipsend/arp.c | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/contrib/ipfilter/ipsend/arp.c b/contrib/ipfilter/ipsend/arp.c deleted file mode 100644 index 58a1523..0000000 --- a/contrib/ipfilter/ipsend/arp.c +++ /dev/null @@ -1,141 +0,0 @@ -/* $FreeBSD$ */ - -/* - * arp.c (C) 1995-1998 Darren Reed - * - * See the IPFILTER.LICENCE file for details on licencing. - */ -#if !defined(lint) -static const char sccsid[] = "@(#)arp.c 1.4 1/11/96 (C)1995 Darren Reed"; -static const char rcsid[] = "@(#)$Id$"; -#endif -#include <sys/types.h> -#include <sys/socket.h> -#if !defined(ultrix) && !defined(hpux) && !defined(__hpux) && !defined(__osf__) && !defined(_AIX51) -# include <sys/sockio.h> -#endif -#include <sys/ioctl.h> -#include <netinet/in_systm.h> -#include <netinet/in.h> -#include <net/if.h> -#include <netinet/if_ether.h> -#ifndef ultrix -# include <net/if_arp.h> -#endif -#include <netinet/in.h> -#include <netinet/ip.h> -#include <netinet/ip_var.h> -#include <netinet/tcp.h> -#include <stdio.h> -#include <errno.h> -#include <netdb.h> -#include "ipsend.h" -#include "iplang/iplang.h" - - -/* - * lookup host and return - * its IP address in address - * (4 bytes) - */ -int resolve(host, address) - char *host, *address; -{ - struct hostent *hp; - u_long add; - - add = inet_addr(host); - if (add == -1) - { - if (!(hp = gethostbyname(host))) - { - fprintf(stderr, "unknown host: %s\n", host); - return -1; - } - bcopy((char *)hp->h_addr, (char *)address, 4); - return 0; - } - bcopy((char*)&add, address, 4); - return 0; -} - -/* - * ARP for the MAC address corresponding - * to the IP address. This taken from - * some BSD program, I cant remember which. - */ -int arp(ip, ether) - char *ip; - char *ether; -{ - static int sfd = -1; - static char ethersave[6], ipsave[4]; - struct arpreq ar; - struct sockaddr_in *sin, san; - struct hostent *hp; - int fd; - -#ifdef IPSEND - if (arp_getipv4(ip, ether) == 0) - return 0; -#endif - if (!bcmp(ipsave, ip, 4)) { - bcopy(ethersave, ether, 6); - return 0; - } - fd = -1; - bzero((char *)&ar, sizeof(ar)); - sin = (struct sockaddr_in *)&ar.arp_pa; - sin->sin_family = AF_INET; - bcopy(ip, (char *)&sin->sin_addr.s_addr, 4); -#ifndef hpux - if ((hp = gethostbyaddr(ip, 4, AF_INET))) -# if SOLARIS && (SOLARIS2 >= 10) - if (!(ether_hostton(hp->h_name, (struct ether_addr *)ether))) -# else - if (!(ether_hostton(hp->h_name, ether))) -# endif - goto savearp; -#endif - - if (sfd == -1) - if ((sfd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) - { - perror("arp: socket"); - return -1; - } -tryagain: - if (ioctl(sfd, SIOCGARP, (caddr_t)&ar) == -1) - { - if (fd == -1) - { - bzero((char *)&san, sizeof(san)); - san.sin_family = AF_INET; - san.sin_port = htons(1); - bcopy(ip, &san.sin_addr.s_addr, 4); - fd = socket(AF_INET, SOCK_DGRAM, 0); - (void) sendto(fd, ip, 4, 0, - (struct sockaddr *)&san, sizeof(san)); - sleep(1); - (void) close(fd); - goto tryagain; - } - fprintf(stderr, "(%s):", inet_ntoa(sin->sin_addr)); - if (errno != ENXIO) - perror("SIOCGARP"); - return -1; - } - - if ((ar.arp_ha.sa_data[0] == 0) && (ar.arp_ha.sa_data[1] == 0) && - (ar.arp_ha.sa_data[2] == 0) && (ar.arp_ha.sa_data[3] == 0) && - (ar.arp_ha.sa_data[4] == 0) && (ar.arp_ha.sa_data[5] == 0)) { - fprintf(stderr, "(%s):", inet_ntoa(sin->sin_addr)); - return -1; - } - - bcopy(ar.arp_ha.sa_data, ether, 6); -savearp: - bcopy(ether, ethersave, 6); - bcopy(ip, ipsave, 4); - return 0; -} |