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Fixed a segvbug.
[icmp-dn.git]
/
idnlookup.c
diff --git
a/idnlookup.c
b/idnlookup.c
index
27b26fd
..
2c49f87
100644
(file)
--- a/
idnlookup.c
+++ b/
idnlookup.c
@@
-136,14
+136,19
@@
int main(int argc, char **argv)
struct pollfd pfd;
struct timeval tvb, tvc;
struct sockaddr_storage name;
struct pollfd pfd;
struct timeval tvb, tvc;
struct sockaddr_storage name;
- int timeout, elapsed;
+ int timeout, dispttl;
+ int elapsed;
timeout = 3000;
timeout = 3000;
- while((c = getopt(argc, argv, "ht:")) != -1) {
+ dispttl = 0;
+ while((c = getopt(argc, argv, "hTt:")) != -1) {
switch(c) {
case 't':
timeout = atoi(optarg);
break;
switch(c) {
case 't':
timeout = atoi(optarg);
break;
+ case 'T':
+ dispttl = 1;
+ break;
case 'h':
case '?':
case ':':
case 'h':
case '?':
case ':':
@@
-159,7
+164,6
@@
int main(int argc, char **argv)
}
memset(&aihint, 0, sizeof(aihint));
}
memset(&aihint, 0, sizeof(aihint));
- aihint.ai_family = PF_INET; /* Only IPv4 for now. */
aihint.ai_socktype = SOCK_RAW;
aihint.ai_protocol = IPPROTO_ICMP;
ret = getaddrinfo(argv[optind], NULL, &aihint, &ai);
aihint.ai_socktype = SOCK_RAW;
aihint.ai_protocol = IPPROTO_ICMP;
ret = getaddrinfo(argv[optind], NULL, &aihint, &ai);
@@
-191,7
+195,7
@@
int main(int argc, char **argv)
pfd.events = POLLIN;
gettimeofday(&tvc, NULL);
elapsed = ((tvc.tv_sec - tvb.tv_sec) * 1000) + ((tvc.tv_usec - tvb.tv_usec) / 1000);
pfd.events = POLLIN;
gettimeofday(&tvc, NULL);
elapsed = ((tvc.tv_sec - tvb.tv_sec) * 1000) + ((tvc.tv_usec - tvb.tv_usec) / 1000);
- if(elapsed > timeout) {
+ if(elapsed >
=
timeout) {
fprintf(stderr, "idnlookup: timeout\n");
exit(1);
}
fprintf(stderr, "idnlookup: timeout\n");
exit(1);
}
@@
-236,6
+240,8
@@
int main(int argc, char **argv)
}
}
}
}
+ if(dispttl)
+ printf("%i\n", ntohl(rep.ttl));
printdn(stdout, buf + sizeof(iphdr) + sizeof(rep), ret - sizeof(iphdr) - sizeof(rep));
close(s);
printdn(stdout, buf + sizeof(iphdr) + sizeof(rep), ret - sizeof(iphdr) - sizeof(rep));
close(s);