Index: rwhod.c
===================================================================
RCS file: /mnt/ncvs/src/usr.sbin/rwhod/rwhod.c,v
retrieving revision 1.14
retrieving revision 1.15
diff -u -r1.14 -r1.15
--- rwhod.c	2000/07/12 00:47:33	1.14
+++ rwhod.c	2000/12/22 21:30:15	1.15
@@ -56,6 +56,7 @@
 #include <net/if_dl.h>
 #include <net/route.h>
 #include <netinet/in.h>
+#include <arpa/inet.h>
 #include <protocols/rwhod.h>
 
 #include <ctype.h>
@@ -277,17 +278,22 @@
 			continue;
 		}
 		if (from.sin_port != sp->s_port && !insecure_mode) {
-			syslog(LOG_WARNING, "%d: bad from port",
-				ntohs(from.sin_port));
+			syslog(LOG_WARNING, "%d: bad source port from %s",
+			    ntohs(from.sin_port), inet_ntoa(from.sin_addr));
 			continue;
 		}
+		if (cc < WHDRSIZE) {
+			syslog(LOG_WARNING, "short packet from %s",
+			    inet_ntoa(from.sin_addr));
+			continue;
+		}
 		if (wd.wd_vers != WHODVERSION)
 			continue;
 		if (wd.wd_type != WHODTYPE_STATUS)
 			continue;
 		if (!verify(wd.wd_hostname, sizeof wd.wd_hostname)) {
-			syslog(LOG_WARNING, "malformed host name from %x",
-				from.sin_addr);
+			syslog(LOG_WARNING, "malformed host name from %s",
+			    inet_ntoa(from.sin_addr));
 			continue;
 		}
 		(void) snprintf(path, sizeof path, "whod.%s", wd.wd_hostname);