diff options
Diffstat (limited to 'contrib/ipfilter/ipsend/resend.c')
| -rw-r--r-- | contrib/ipfilter/ipsend/resend.c | 41 |
1 files changed, 16 insertions, 25 deletions
diff --git a/contrib/ipfilter/ipsend/resend.c b/contrib/ipfilter/ipsend/resend.c index 646da1a..07220df 100644 --- a/contrib/ipfilter/ipsend/resend.c +++ b/contrib/ipfilter/ipsend/resend.c @@ -1,21 +1,16 @@ +/* $NetBSD$ */ + /* * resend.c (C) 1995-1998 Darren Reed * - * This was written to test what size TCP fragments would get through - * various TCP/IP packet filters, as used in IP firewalls. In certain - * conditions, enough of the TCP header is missing for unpredictable - * results unless the filter is aware that this can happen. - * * See the IPFILTER.LICENCE file for details on licencing. + * */ -#if defined(__sgi) && (IRIX > 602) -# include <sys/ptimers.h> +#if !defined(lint) +static const char sccsid[] = "@(#)resend.c 1.3 1/11/96 (C)1995 Darren Reed"; +static const char rcsid[] = "@(#)Id: resend.c,v 2.8 2004/01/08 13:34:31 darrenr Exp"; #endif -#include <stdio.h> -#include <netdb.h> -#include <string.h> -#include <stdlib.h> -#include <unistd.h> +#include <sys/param.h> #include <sys/types.h> #include <sys/time.h> #include <sys/socket.h> @@ -24,9 +19,6 @@ #include <arpa/inet.h> #include <netinet/in_systm.h> #include <netinet/ip.h> -#include <netinet/tcp.h> -#include <netinet/udp.h> -#include <netinet/ip_icmp.h> #ifndef linux # include <netinet/ip_var.h> # include <netinet/if_ether.h> @@ -34,14 +26,13 @@ # include <net/if_var.h> # endif #endif +#include <stdio.h> +#include <netdb.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> #include "ipsend.h" -#if !defined(lint) -static const char sccsid[] = "@(#)resend.c 1.3 1/11/96 (C)1995 Darren Reed"; -static const char rcsid[] = "@(#)$Id: resend.c,v 2.1.4.5 2002/12/06 11:40:36 darrenr Exp $"; -#endif - - extern int opts; static u_char pbuf[65536]; /* 1 big packet */ @@ -54,7 +45,7 @@ ip_t *ip; tcphdr_t *t; int i, j; - t = (tcphdr_t *)((char *)ip + (ip->ip_hl << 2)); + t = (tcphdr_t *)((char *)ip + (IP_HL(ip) << 2)); if (ip->ip_tos) printf("tos %#x ", ip->ip_tos); if (ip->ip_off & 0x3fff) @@ -88,13 +79,13 @@ char *datain; ether_header_t *eh; char dhost[6]; ip_t *ip; - int fd, wfd = initdevice(dev, 0, 5), len, i; + int fd, wfd = initdevice(dev, 5), len, i; if (datain) fd = (*r->r_open)(datain); else fd = (*r->r_open)("-"); - + if (fd < 0) exit(-1); @@ -130,7 +121,7 @@ char *datain; sizeof(dhost)); if (!ip->ip_sum) ip->ip_sum = chksum((u_short *)ip, - ip->ip_hl << 2); + IP_HL(ip) << 2); bcopy(ip, (char *)(eh + 1), len); len += sizeof(*eh); printpacket(ip); |
