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Add some sanity checking for the "-i" argument. 

svn path=/trunk/; revision=9573
This commit is contained in:
Guy Harris 2004-01-06 02:58:20 +00:00
parent c5632f3648
commit 5887d3d5f9
1 changed files with 5 additions and 3 deletions
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8
text2pcap.c
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@ -6,7 +6,7 @@
*
* (c) Copyright 2001 Ashok Narayanan <ashokn@cisco.com>
*
* $Id: text2pcap.c,v 1.28 2004/01/05 19:31:44 ulfl Exp $
* $Id: text2pcap.c,v 1.29 2004/01/06 02:58:20 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
@ -125,7 +125,7 @@ static unsigned long hdr_ethernet_proto = 0;
/* Dummy IP header */
static int hdr_ip = FALSE;
static unsigned long hdr_ip_proto = 0;
static long hdr_ip_proto = 0;
/* Dummy UDP header */
static int hdr_udp = FALSE;
@ -1077,7 +1077,9 @@ parse_options (int argc, char *argv[])
case 'i':
hdr_ip = TRUE;
if (sscanf(optarg, "%ld", &hdr_ip_proto) < 1) {
hdr_ip_proto = strtol(optarg, &p, 10);
if (p == optarg || *p != '\0' || hdr_ip_proto < 0 ||
hdr_ip_proto > 255) {
fprintf(stderr, "Bad argument for '-i': %s\n", optarg);
help(argv[0]);
}