specify client-side port: Only support --cport

Remove support for short-option -e

Signed-off-by: Kevin Constantine <kevin.constantine@gmail.com>

src/iperf_api.c

@@ -584,7 +584,7 @@ iperf_parse_arguments(struct iperf_test *test, int argc, char **argv)
         {"reverse", no_argument, NULL, 'R'},
         {"window", required_argument, NULL, 'w'},
         {"bind", required_argument, NULL, 'B'},
-        {"cport", required_argument, NULL, 'e'},
+        {"cport", required_argument, NULL, OPT_CLIENT_PORT},
         {"set-mss", required_argument, NULL, 'M'},
         {"no-delay", no_argument, NULL, 'N'},
         {"version4", no_argument, NULL, '4'},
@@ -625,7 +625,7 @@ iperf_parse_arguments(struct iperf_test *test, int argc, char **argv)
 
     blksize = 0;
     server_flag = client_flag = rate_flag = duration_flag = 0;
-    while ((flag = getopt_long(argc, argv, "p:f:i:DVJvsc:ub:t:n:k:l:P:Rw:B:e:M:N46S:L:ZO:F:A:T:C:dI:h", longopts, NULL)) != -1) {
+    while ((flag = getopt_long(argc, argv, "p:f:i:DVJvsc:ub:t:n:k:l:P:Rw:B:M:N46S:L:ZO:F:A:T:C:dI:h", longopts, NULL)) != -1) {
         switch (flag) {
             case 'p':
                 test->server_port = atoi(optarg);
@@ -746,7 +746,7 @@ iperf_parse_arguments(struct iperf_test *test, int argc, char **argv)
             case 'B':
                 test->bind_address = strdup(optarg);
                 break;
-            case 'e':
+            case OPT_CLIENT_PORT:
                 test->bind_port = atoi(optarg);
                 break;
             case 'M':

src/iperf_api.h

@@ -30,6 +30,7 @@ struct iperf_stream;
 #define OPT_LOGFILE 2
 #define OPT_GET_SERVER_OUTPUT 3
 #define OPT_UDP_COUNTERS_64BIT 4
+#define OPT_CLIENT_PORT 5
 
 /* states */
 #define TEST_START 1

src/locale.c

@@ -108,7 +108,7 @@ const char usage_longstr[] = "Usage: iperf [-s|-c host] [options]\n"
                            "  -k, --blockcount #[KMG]   number of blocks (packets) to transmit (instead of -t or -n)\n"
                            "  -l, --len       #[KMG]    length of buffer to read or write\n"
 			   "                            (default %d KB for TCP, %d KB for UDP)\n"
-                           "  -e, --cport     <host>    bind to a specific client port (default: ephemeral port)\n"
+                           "  --cport         <port>    bind to a specific client port (default: ephemeral port)\n"
                            "  -P, --parallel  #         number of parallel client streams to run\n"
                            "  -R, --reverse             run in reverse mode (server sends, client receives)\n"
                            "  -w, --window    #[KMG]    TCP window size (socket buffer size)\n"