Consistify string lengths for arguments to warning().

src/iperf_client_api.c

@@ -402,7 +402,7 @@ iperf_connect(struct iperf_test *test)
             test->ctrl_sck_mss = opt;
         }
         else {
-            char str[128];
+            char str[WARN_STR_LEN];
             snprintf(str, sizeof(str),
                      "Ignoring nonsense TCP MSS %d", opt);
             warning(str);
@@ -449,7 +449,7 @@ iperf_connect(struct iperf_test *test)
 	 */
 	if (test->ctrl_sck_mss > 0 &&
 	    test->settings->blksize > test->ctrl_sck_mss) {
-	    char str[128];
+	    char str[WARN_STR_LEN];
 	    snprintf(str, sizeof(str),
 		     "UDP block size %d exceeds TCP MSS %d, may result in fragmentation / drops", test->settings->blksize, test->ctrl_sck_mss);
 	    warning(str);

src/iperf_udp.c

@@ -317,7 +317,7 @@ iperf_udp_buffercheck(struct iperf_test *test, int s)
 	return -1;
     }
     if (test->settings->blksize > sndbuf_actual) {
-	char str[80];
+	char str[WARN_STR_LEN];
 	snprintf(str, sizeof(str),
 		 "Block size %d > sending socket buffer size %d",
 		 test->settings->blksize, sndbuf_actual);
@@ -339,7 +339,7 @@ iperf_udp_buffercheck(struct iperf_test *test, int s)
 	return -1;
     }
     if (test->settings->blksize > rcvbuf_actual) {
-	char str[80];
+	char str[WARN_STR_LEN];
 	snprintf(str, sizeof(str),
 		 "Block size %d > receiving socket buffer size %d",
 		 test->settings->blksize, rcvbuf_actual);