Fix for bug #16855

.bzrignore

@@ -1275,3 +1275,5 @@ zlib/*.ds?
 zlib/*.vcproj
 scripts/mysql_upgrade
 include/openssl
+mysql-test/r/bdb.log
+mysql-test/r/im_client_port.log

client/mysql.cc

@@ -653,7 +653,7 @@ static struct my_option my_long_options[] =
    "Base name of shared memory.", (gptr*) &shared_memory_base_name, (gptr*) &shared_memory_base_name, 
    0, GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
 #endif
-  {"socket", 'S', "Socket file to use for connection.",
+  {"socket", 'S', "Socket file to use for connection. (This will override --port unless --protocol=TCP is specified.)",
    (gptr*) &opt_mysql_unix_port, (gptr*) &opt_mysql_unix_port, 0, GET_STR_ALLOC,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
 #include "sslopt-longopts.h"
@@ -940,6 +940,13 @@ static int get_options(int argc, char **argv)
     connect_flag= 0; /* Not in interactive mode */
   }
 
+  if (opt_mysql_port && (!opt_protocol) && (!opt_mysql_unix_port))
+  {
+    /* Not checking return type since we are using a constant value */
+    /* straight from the initialization of sql_protocol_typelib.    */
+    opt_protocol= find_type("TCP", &sql_protocol_typelib, 0);
+  }
+
   if (strcmp(default_charset, charset_info->csname) &&
       !(charset_info= get_charset_by_csname(default_charset, 
 					    MY_CS_PRIMARY, MYF(MY_WME))))