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use /dev/bpf

This commit is contained in:
christos 2004-12-01 23:45:12 +00:00
parent 24e1167471
commit 9ab78e153b
1 changed files with 15 additions and 3 deletions
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18
dist/dhcp/common/bpf.c vendored
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@ -47,7 +47,7 @@
#ifndef lint
static char copyright[] =
"$Id: bpf.c,v 1.8 2004/10/22 05:22:39 perry Exp $ Copyright (c) 1995-2002 The Internet Software Consortium. All rights reserved.\n";
"$Id: bpf.c,v 1.9 2004/12/01 23:45:12 christos Exp $ Copyright (c) 1995-2002 The Internet Software Consortium. All rights reserved.\n";
#endif /* not lint */
#include "dhcpd.h"
@ -66,6 +66,7 @@ static char copyright[] =
# endif
# endif
#include <paths.h>
#include <netinet/in_systm.h>
#include "includes/netinet/ip.h"
#include "includes/netinet/udp.h"
@ -98,11 +99,21 @@ int if_register_bpf (info)
struct interface_info *info;
{
int sock;
char filename[50];
int b;
u_int bufsize;
/* Open a BPF device */
#ifdef _PATH_BPF
const char *filename = _PATH_BPF;
sock = open (filename, O_RDWR, 0);
if (sock < 0)
log_fatal ("No bpf devices.%s%s%s",
" Please read the README",
" section for your operating",
" system.");
#else
char filename[50];
int b;
for (b = 0; 1; b++) {
#ifndef NO_SNPRINTF
snprintf(filename, sizeof(filename), BPF_FORMAT, b);
@ -125,6 +136,7 @@ int if_register_bpf (info)
break;
}
}
#endif
/* Set the BPF buffer size to 32k */
bufsize = 32768;