-- fix some unitialized errors pointed out by valgrind

src/agents/store/mail.c

@@ -23,6 +23,7 @@ SetDocProp(StoreClient *client, StoreObject *doc, char *pname, char *value)
 		info.type = STORE_PROP_NONE;
 		info.name = pname;
 		info.value = value;
+		info.table = STORE_PROPTABLE_NONE;
 		StorePropertyFixup(&info);
 		StoreObjectSetProperty(client, doc, &info);
 	}

src/libs/connio/unix-ip.c

@@ -119,6 +119,7 @@ get_ifi_info(int family, int doaliases)
   len = 100 * sizeof(struct ifreq); /* initial buffer size guess */
   for ( ; ; ) {
     buf = malloc(len);
+    memset(buf, 0, len);
     ifc.ifc_len = len;
     ifc.ifc_buf = buf;
     if (ioctl(sockfd, SIOCGIFCONF, &ifc) < 0) {

src/libs/xpl/mem.c

@@ -105,6 +105,7 @@ void XplSignalCatcher(XplShutdownFunc XplShutdownFunction)
     ApplicationXplShutdownFunction = XplShutdownFunction;
 
     sigemptyset(&act.sa_mask);
+    sigemptyset(&signalSet);
 
     for (i=0; _XplSignalList[i] != 0; i++) {
         sigaddset(&signalSet, _XplSignalList[i]);