diff options
| author | Gilbert Ramirez <gram@alumni.rice.edu> | 2000-01-14 14:21:50 +0000 |
|---|---|---|
| committer | Gilbert Ramirez <gram@alumni.rice.edu> | 2000-01-14 14:21:50 +0000 |
| commit | b65829c8084c878bce0ff942beeb87357581c564 (patch) | |
| tree | 23bc35142585f4c8de8eeb5621e39adf6bcac4a7 /tethereal.c | |
| parent | e0468c2e16f2a2982e5aa73e8ddf2017641c8be5 (diff) | |
Check for existence of cf.iface before calling capture(). Change
usage statement accordingly.
svn path=/trunk/; revision=1474
Diffstat (limited to 'tethereal.c')
| -rw-r--r-- | tethereal.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/tethereal.c b/tethereal.c index f591fc4ca9..8111580f29 100644 --- a/tethereal.c +++ b/tethereal.c @@ -1,6 +1,6 @@ /* tethereal.c * - * $Id: tethereal.c,v 1.1 2000/01/14 06:45:52 guy Exp $ + * $Id: tethereal.c,v 1.2 2000/01/14 14:21:50 gram Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs <gerald@zing.org> @@ -132,7 +132,7 @@ print_usage(void) { VERSION, comp_info_str); fprintf(stderr, "t%s [-v] [-h] [-n]\n", PACKAGE); - fprintf(stderr, " [-r infile] [-t <time stamp format>]\n"); + fprintf(stderr, " [-r infile] [-t <time stamp format>] -i iface\n"); } int @@ -369,6 +369,11 @@ main(int argc, char *argv[]) cf_name[0] = '\0'; #ifdef HAVE_LIBPCAP } else { + if (!cf.iface) { + print_usage(); + fprintf(stderr, "\nPlease specify an interface with the -i option.\n"); + exit(1); + } capture(); #endif } |