Make UDP networking more-or-less work again.

2 files changed, 7 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index 0f700764..7160c86b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2016-03-14         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* io.c (socketopen): For SOCK_DGRAM, set read_len to sizeof
+	remote_addr. Makes UDP more or less work again. 
+	Thanks to Juergen Kahrs for the fix.
+
 2016-03-10         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* builtin.c (do_system): Further improvements. Catch core dump
diff --git a/io.c b/io.c
index d700d87a..d4435684 100644
--- a/io.c
+++ b/io.c
@@ -1525,7 +1525,7 @@ socketopen(int family, int type, const char *localpname,
 #ifdef MSG_PEEK
 					char buf[10];
 					struct sockaddr_storage remote_addr;
-					socklen_t read_len = 0;
+					socklen_t read_len = sizeof(remote_addr);
 
 					if (recvfrom(socket_fd, buf, 1, MSG_PEEK,
 						(struct sockaddr *) & remote_addr,