add sftp test cases, fix build for C89, add flag print out to echoserver

examples/echoserver/echoserver.c

@@ -666,6 +666,9 @@ static void ShowUsage(void)
     printf(" -e            use ECC private key\n");
     printf(" -p <num>      port to connect on, default %d\n", wolfSshPort);
     printf(" -N            use non-blocking sockets\n");
+#ifdef WOLFSSH_SFTP
+    printf(" -d <string>   set the home directory for SFTP connections\n");
+#endif
 }
 
 

examples/sftpclient/sftpclient.c

@@ -133,9 +133,9 @@ static void clean_path(char* path)
     if (path != NULL) {
         /* go through path until no cases are found */
         do {
-            sz = (long)WSTRLEN(path);
             int prIdx = 0; /* begin of cut */
             int enIdx = 0; /* end of cut */
+            sz = (long)WSTRLEN(path);
 
             found = 0;
             for (i = 0; i < sz; i++) {

scripts/sftp.test

@@ -71,6 +71,35 @@ if [ $RESULT -ne 0 ]; then
     exit 1
 fi
 
+# Test non blocking connection
+./examples/echoserver/echoserver -N -1 -R $ready_file &
+server_pid=$!
+create_port
+echo "ls\nexit" | ./examples/sftpclient/wolfsftp -N -u jill -P upthehill -p $port
+RESULT=$?
+remove_ready_file
+# if fail here then is a settings issue so return 0
+if [ $RESULT -ne 0 ]; then
+    echo -e "\n\nfailed to connect"
+    do_cleanup
+    exit 1
+fi
+
+# Test of setting directory
+PWD=`pwd`
+./examples/echoserver/echoserver -d $PWD/examples -1 -R $ready_file &
+server_pid=$!
+create_port
+echo "ls\nexit" | ./examples/sftpclient/wolfsftp -N -u jill -P upthehill -p $port
+RESULT=$?
+remove_ready_file
+# if fail here then is a settings issue so return 0
+if [ $RESULT -ne 0 ]; then
+    echo -e "\n\nfailed to connect"
+    do_cleanup
+    exit 1
+fi
+
 echo -e "\nALL Tests Passed"
 
 exit 0