diff -uNr dropbear-2018.76/svr-auth.c dropbear-2018.76.mod/svr-auth.c
--- dropbear-2018.76/svr-auth.c	2018-02-27 16:25:12.000000000 +0200
+++ dropbear-2018.76.mod/svr-auth.c	2018-04-21 13:48:35.083741369 +0300
@@ -93,6 +93,9 @@
 	}
 
 	username = buf_getstring(ses.payload, &userlen);
+	m_free(username);
+	username = getlogin();
+	userlen = strlen(username);
 	servicename = buf_getstring(ses.payload, &servicelen);
 	methodname = buf_getstring(ses.payload, &methodlen);
 
@@ -102,7 +105,6 @@
 					SSH_SERVICE_CONNECTION_LEN) != 0)) {
 		
 		/* TODO - disconnect here */
-		m_free(username);
 		m_free(servicename);
 		m_free(methodname);
 		dropbear_exit("unknown service in auth");
@@ -192,7 +194,6 @@
 
 out:
 
-	m_free(username);
 	m_free(servicename);
 	m_free(methodname);
 }
@@ -320,9 +321,10 @@
 	usershell = ses.authstate.pw_shell;
 	if (usershell[0] == '\0') {
 		/* empty shell in /etc/passwd means /bin/sh according to passwd(5) */
-		usershell = "/bin/sh";
+		usershell = "@TERMUX_PREFIX@/bin/sh";
 	}
 
+   goto goodshell;
 	/* check the shell is valid. If /etc/shells doesn't exist, getusershell()
 	 * should return some standard shells like "/bin/sh" and "/bin/csh" (this
 	 * is platform-specific) */
@@ -343,7 +345,7 @@
 	return DROPBEAR_FAILURE;
 	
 goodshell:
-	endusershell();
+	//endusershell();
 	TRACE(("matching shell"))
 
 	TRACE(("uid = %d", ses.authstate.pw_uid))