1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
Summary: Allow use of broadcast addresses.
Contributor: NetBSD
Merged by: Decklin Foster <decklin@red-bean.com>
Index: netcat-1.10/netcat.c
===================================================================
--- netcat-1.10.orig/netcat.c
+++ netcat-1.10/netcat.c
@@ -166,6 +166,7 @@ unsigned char * stage = NULL; /* hexdump
/* global cmd flags: */
USHORT o_alla = 0;
+USHORT o_allowbroad = 0;
unsigned int o_interval = 0;
USHORT o_listen = 0;
USHORT o_nflag = 0;
@@ -641,6 +642,13 @@ newskt:
rr = setsockopt (nnetfd, SOL_SOCKET, SO_REUSEADDR, &x, sizeof (x));
if (rr == -1)
holler ("nnetfd reuseaddr failed"); /* ??? */
+#ifdef SO_BROADCAST
+ if (o_allowbroad) {
+ rr = setsockopt (nnetfd, SOL_SOCKET, SO_BROADCAST, &x, sizeof (x));
+ if (rr == -1)
+ holler ("nnetfd reuseaddr failed"); /* ??? */
+ }
+#endif
#ifdef SO_REUSEPORT /* doesnt exist everywhere... */
rr = setsockopt (nnetfd, SOL_SOCKET, SO_REUSEPORT, &x, sizeof (x));
if (rr == -1)
@@ -1431,12 +1439,14 @@ main (argc, argv)
/* If your shitbox doesn't have getopt, step into the nineties already. */
/* optarg, optind = next-argv-component [i.e. flag arg]; optopt = last-char */
- while ((x = getopt (argc, argv, "ae:g:G:hi:lno:p:rs:tuvw:z")) != EOF) {
+ while ((x = getopt (argc, argv, "abe:g:G:hi:lno:p:rs:tuvw:z")) != EOF) {
/* Debug (("in go: x now %c, optarg %x optind %d", x, optarg, optind)) */
switch (x) {
case 'a':
bail ("all-A-records NIY");
o_alla++; break;
+ case 'b':
+ o_allowbroad++; break;
#ifdef GAPING_SECURITY_HOLE
case 'e': /* prog to exec */
pr00gie = optarg;
@@ -1692,6 +1702,7 @@ options:");
-e prog program to exec after connect [dangerous!!]");
#endif
holler ("\
+ -b allow broadcasts\n\
-g gateway source-routing hop point[s], up to 8\n\
-G num source-routing pointer: 4, 8, 12, ...\n\
-h this cruft\n\
|
