Hi tech@,
I just ran into this while fiddling with some netcat-based plumbing.
When I connect to the specified socket from another shell, the
listening nc dies if it is AF_UNIX:
$ tail -10f /var/log/messages | nc -vkU -l ~/.xlog_socket
nc: getnameinfo: Invalid argument
The attached patch fixes the issue:
$ tail -10f /var/log/messages | \
/usr/obj/usr.bin/nc/nc -vkU -l ~/.xlog_socket
Connection on /home/attila/.xlog_socket received!
Feedback, comments most welcome.
Pax, -A
--
http://haqistan.net/~attila | [email protected] | 0x62A729CF
Index: netcat.c
===================================================================
RCS file: /cvs/src/usr.bin/nc/netcat.c,v
retrieving revision 1.150
diff -u -p -r1.150 netcat.c
--- netcat.c 4 Jan 2016 02:18:31 -0000 1.150
+++ netcat.c 28 May 2016 16:31:27 -0000
@@ -527,8 +527,16 @@ main(int argc, char *argv[])
/* For now, all errnos are fatal */
err(1, "accept");
}
- if (vflag)
- report_connect((struct sockaddr *)&cliaddr, len);
+ if (vflag) {
+ if (family == AF_UNIX)
+ fprintf(stderr,
+ "Connection on %s "
+ "received!\n", host);
+ else
+ report_connect(
+ (struct sockaddr *)&cliaddr,
+ len);
+ }
if ((usetls) &&
(tls_cctx = tls_setup_server(tls_ctx, connfd, host)))
readwrite(connfd, tls_cctx);
