--- a/cli-authinteract.c	Wed Jun 03 22:59:59 2015 +0800
+++ b/cli-authinteract.c	Thu Jun 04 22:25:28 2015 +0800
@@ -31,10 +31,10 @@
 
 #ifdef ENABLE_CLI_INTERACT_AUTH
 
-static unsigned char* get_response(unsigned char* prompt)
+static char* get_response(char* prompt)
 {
 	FILE* tty = NULL;
-	unsigned char* response = NULL;
+	char* response = NULL;
 	/* not a password, but a reasonable limit */
 	char buf[DROPBEAR_MAX_CLI_PASS];
 	char* ret = NULL;
@@ -50,13 +50,13 @@
 	}
 
 	if (ret == NULL) {
-		response = (unsigned char*)m_strdup("");
+		response = m_strdup("");
 	} else {
 		unsigned int buflen = strlen(buf);
 		/* fgets includes newlines */
 		if (buflen > 0 && buf[buflen-1] == '\n')
 			buf[buflen-1] = '\0';
-		response = (unsigned char*)m_strdup(buf);
+		response = m_strdup(buf);
 	}
 
 	m_burn(buf, sizeof(buf));
@@ -66,14 +66,14 @@
 
 void recv_msg_userauth_info_request() {
 
-	unsigned char *name = NULL;
-	unsigned char *instruction = NULL;
+	char *name = NULL;
+	char *instruction = NULL;
 	unsigned int num_prompts = 0;
 	unsigned int i;
 
-	unsigned char *prompt = NULL;
+	char *prompt = NULL;
 	unsigned int echo = 0;
-	unsigned char *response = NULL;
+	char *response = NULL;
 
 	TRACE(("enter recv_msg_recv_userauth_info_request"))
 
@@ -84,8 +84,8 @@
 	}
 	cli_ses.interact_request_received = 1;
 
-	name = buf_getstring(ses.payload, NULL);
-	instruction = buf_getstring(ses.payload, NULL);
+	name = (char *)buf_getstring(ses.payload, NULL);
+	instruction = (char *)buf_getstring(ses.payload, NULL);
 
 	/* language tag */
 	buf_eatstring(ses.payload);
@@ -115,13 +115,13 @@
 
 	for (i = 0; i < num_prompts; i++) {
 		unsigned int response_len = 0;
-		prompt = buf_getstring(ses.payload, NULL);
+		prompt = (char *)buf_getstring(ses.payload, NULL);
 		cleantext(prompt);
 
 		echo = buf_getbool(ses.payload);
 
 		if (!echo) {
-			unsigned char* p = getpass_or_cancel(prompt);
+			char* p = getpass_or_cancel(prompt);
 			response = m_strdup(p);
 			m_burn(p, strlen(p));
 		} else {
@@ -129,7 +129,7 @@
 		}
 
 		response_len = strlen(response);
-		buf_putstring(ses.writepayload, response, response_len);
+		buf_putstring(ses.writepayload, (const unsigned char *)response, response_len);
 		m_burn(response, response_len);
 		m_free(prompt);
 		m_free(response);
@@ -149,22 +149,22 @@
 	buf_putbyte(ses.writepayload, SSH_MSG_USERAUTH_REQUEST);
 
 	/* username */
-	buf_putstring(ses.writepayload, cli_opts.username,
+	buf_putstring(ses.writepayload, (const unsigned char *)cli_opts.username,
 			strlen(cli_opts.username));
 
 	/* service name */
-	buf_putstring(ses.writepayload, SSH_SERVICE_CONNECTION, 
+	buf_putstring(ses.writepayload, (const unsigned char *)SSH_SERVICE_CONNECTION,
 			SSH_SERVICE_CONNECTION_LEN);
 
 	/* method */
-	buf_putstring(ses.writepayload, AUTH_METHOD_INTERACT,
+	buf_putstring(ses.writepayload, (const unsigned char *)AUTH_METHOD_INTERACT,
 			AUTH_METHOD_INTERACT_LEN);
 
 	/* empty language tag */
-	buf_putstring(ses.writepayload, "", 0);
+	buf_putstring(ses.writepayload, (const unsigned char *)"", 0);
 
 	/* empty submethods */
-	buf_putstring(ses.writepayload, "", 0);
+	buf_putstring(ses.writepayload, (const unsigned char *)"", 0);
 
 	encrypt_packet();
 	cli_ses.interact_request_received = 0;