[Tc2-checkins] [CSET 1.22] udp: shorthand for 0.0.0.0

[<mr...@mr...>]

# This is a BitKeeper generated diff -Nru style patch.
#
# ChangeSet
#   2004/12/12 15:02:32+01:00 mr...@fo... =

#   udp: shorthand for 0.0.0.0
# =

# BitKeeper/etc/logging_ok
#   2004/12/12 15:02:32+01:00 mr...@fo... +1 -0
#   Logging to lo...@op... accepted
# =

# src/multicast/mc.c
#   2004/12/12 15:02:28+01:00 mr...@fo... +7 -3
#   empty hostname as INADDR_ANY
# =

diff -Nru a/src/multicast/mc.c b/src/multicast/mc.c
--- a/src/multicast/mc.c	2004-12-12 15:02:59 +01:00
+++ b/src/multicast/mc.c	2004-12-12 15:02:59 +01:00
@@ -139,8 +139,13 @@
 	}
     }
 =

-    if(!(hn =3D gethostbyname(url)))
-	return NULL;
+    if(*url){
+	if(!(hn =3D gethostbyname(url)))
+	    return NULL;
+	addr =3D *(uint32_t *) hn->h_addr;
+    } else {
+	addr =3D htonl(INADDR_ANY);
+    }
 =

     if((sock =3D socket(PF_INET, SOCK_DGRAM, 0)) < 0)
 	return NULL;
@@ -151,7 +156,6 @@
     sa.sin_family =3D AF_INET;
     sa.sin_port =3D htons(port);
 =

-    addr =3D *(uint32_t *) hn->h_addr;
     if(IN_MULTICAST(ntohl(addr))){
 	struct ip_mreq mrq;
 	uint32_t ifaddr =3D htonl(INADDR_ANY);