mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-17 10:26:15 +00:00
Code Issues Releases Activity

Add -t to set IP TTL.

Browse Source
This commit is contained in:
Bruce M Simpson 2007-03-01 18:36:16 +00:00
parent a404ab168e
commit df7babd689
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=167149
1 changed files with 19 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
tools/regression/netinet/ipbroadcast/ipbroadcast.c
View File

@ -56,6 +56,7 @@ __FBSDID("$FreeBSD$");
#define DEFAULT_PORT 6698
#define DEFAULT_PAYLOAD_SIZE 24
#define DEFAULT_TTL 1
#define MY_CMSG_SIZE CMSG_SPACE(sizeof(struct in_addr))
static char *progname = NULL;
@ -65,7 +66,7 @@ usage(void)
{
fprintf(stderr,
"usage: %s [-1] [-b] [-B] [-d] [-l len] [-p port] [-r] [-s srcaddr] \n"
"usage: %s [-1] [-b] [-B] [-d] [-l len] [-p port] [-r] [-s srcaddr] [-t ttl]\n"
" <dest>\n",
progname);
fprintf(stderr, "IPv4 broadcast test program. Sends a %d byte UDP "
@ -77,10 +78,11 @@ usage(void)
#if 0
fprintf(stderr, "-r: Fill datagram with random bytes\n");
#endif
fprintf(stderr, "-s: Set IP_SENDSRCADDR to <srcaddr>\n");
fprintf(stderr, "-l: Set payload size to <len>\n");
fprintf(stderr, "-p: Set source and destination port (default: %d)\n",
DEFAULT_PORT);
fprintf(stderr, "-s: Set IP_SENDSRCADDR to <srcaddr>\n");
fprintf(stderr, "-t: Set IP_TTL to <ttl>\n");
exit(EXIT_FAILURE);
}
@ -110,6 +112,7 @@ main(int argc, char *argv[])
int s;
socklen_t soptlen;
int soptval;
int ttl;
dobind = 0;
dobroadcast = 0;
@ -120,12 +123,13 @@ main(int argc, char *argv[])
dstaddr.s_addr = INADDR_ANY;
srcaddr_s = NULL;
portno = DEFAULT_PORT;
ttl = DEFAULT_TTL;
buf = NULL;
buflen = DEFAULT_PAYLOAD_SIZE;
progname = basename(argv[0]);
while ((ch = getopt(argc, argv, "1bBdl:p:rs:")) != -1) {
while ((ch = getopt(argc, argv, "1bBdl:p:rs:t:")) != -1) {
switch (ch) {
case '1':
doonesbcast = 1;
@ -151,6 +155,9 @@ main(int argc, char *argv[])
case 's':
srcaddr_s = optarg;
break;
case 't':
ttl = atoi(optarg);
break;
default:
usage();
break;
@ -193,6 +200,15 @@ main(int argc, char *argv[])
}
}
soptval = ttl;
soptlen = sizeof(soptval);
ret = setsockopt(s, IPPROTO_IP, IP_TTL, &soptval, soptlen);
if (ret == -1) {
perror("setsockopt IPPROTO_IP IP_TTL");
close(s);
exit(EXIT_FAILURE);
}
if (doonesbcast) {
soptval = 1;
soptlen = sizeof(soptval);