ongrep

commit 750825ffa859ef12d05e404b2d896594da580a0c
parent a0a50afd5a9bef5d711d7fcb04155e0d99ded3cd
Author: Jordan Ritter <jpr5@darkridge.com>
Date:   Sun, 10 Aug 2003 01:17:22 +0000

added in interface type 105 (DLT_IEEE802_11) support (I *think* I got it
right..)

Diffstat:
M
configure.in
 | 
12
++++++++++++
M
ngrep.c
 | 
6
++++++
M
ngrep.h
 | 
1
+

3 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/configure.in b/configure.in
@@ -152,6 +152,18 @@ AC_DEFINE(HAVE_LOOP)
 echo yes,
 echo no)
 
+AC_MSG_CHECKING(for DLT_IEEE802_11 in bpf.h)
+AC_EGREP_HEADER(yes, 
+[
+#include <net/bpf.h> 
+#ifdef DLT_IEEE802_11
+yes
+#endif	 
+],
+AC_DEFINE(HAVE_802_11)
+echo yes,
+echo no)
+
 
 dnl
 dnl OS-specific options
diff --git a/ngrep.c b/ngrep.c
@@ -408,6 +408,12 @@ int main(int argc, char **argv) {
             break;
 #endif
 
+#ifdef HAVE_802_11
+        case DLT_IEEE802_11:
+            link_offset = IEEE80211HDR_SIZE;
+            break;
+#endif
+
         default:
             fprintf(stderr, "fatal: unsupported interface type %d\n", pcap_datalink(pd));
             clean_exit(-1);
diff --git a/ngrep.h b/ngrep.h
@@ -18,6 +18,7 @@
 #define LOOPHDR_SIZE 4
 #define FDDIHDR_SIZE 21
 #define ISDNHDR_SIZE 16
+#define IEEE80211HDR_SIZE 24
 
 #ifndef IP_OFFMASK
 #define IP_OFFMASK 0x1fff