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Do more checking of command-line arguments
author
Alan T. DeKok
<aland@freeradius.org>
Sat, 7 Aug 2010 20:30:52 +0000
(22:30 +0200)
committer
Alan T. DeKok
<aland@freeradius.org>
Mon, 9 Aug 2010 12:06:24 +0000
(14:06 +0200)
src/main/radsniff.c
patch
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diff --git
a/src/main/radsniff.c
b/src/main/radsniff.c
index
c9a0cd8
..
b7bb8fa
100644
(file)
--- a/
src/main/radsniff.c
+++ b/
src/main/radsniff.c
@@
-161,7
+161,7
@@
static void sort(RADIUS_PACKET *packet)
}
#define USEC 1000000
}
#define USEC 1000000
-static void tv_sub(
struct timeval *end,
struct timeval *start,
+static void tv_sub(
const struct timeval *end, const
struct timeval *start,
struct timeval *elapsed)
{
elapsed->tv_sec = end->tv_sec - start->tv_sec;
struct timeval *elapsed)
{
elapsed->tv_sec = end->tv_sec - start->tv_sec;
@@
-425,19
+425,23
@@
int main(int argc, char *argv[])
/* Open the device so we can spy */
if (filename) {
descr = pcap_open_offline(filename, errbuf);
/* Open the device so we can spy */
if (filename) {
descr = pcap_open_offline(filename, errbuf);
+ } else if (!dev) {
+ fprintf(stderr, "radsniff: No filename or device was specified.\n");
+ exit(1);
+
} else {
descr = pcap_open_live(dev, SNAPLEN, 1, 0, errbuf);
}
if (descr == NULL)
{
} else {
descr = pcap_open_live(dev, SNAPLEN, 1, 0, errbuf);
}
if (descr == NULL)
{
-
printf(
"radsniff: pcap_open_live failed (%s)\n", errbuf);
+
fprintf(stderr,
"radsniff: pcap_open_live failed (%s)\n", errbuf);
exit(1);
}
/* Apply the rules */
if( pcap_compile(descr, &fp, pcap_filter, 0, netp) == -1)
{
exit(1);
}
/* Apply the rules */
if( pcap_compile(descr, &fp, pcap_filter, 0, netp) == -1)
{
-
printf(
"radsniff: pcap_compile failed\n");
+
fprintf(stderr,
"radsniff: pcap_compile failed\n");
exit(1);
}
if (pcap_setfilter(descr, &fp) == -1)
exit(1);
}
if (pcap_setfilter(descr, &fp) == -1)