diff -uNr openssh-7.9p1/session.c openssh-7.9p1.mod/session.c
--- openssh-7.9p1/session.c	2018-10-17 03:01:20.000000000 +0300
+++ openssh-7.9p1.mod/session.c	2019-03-01 23:13:36.360949253 +0200
@@ -200,7 +200,7 @@
 	temporarily_use_uid(pw);

 	/* Allocate a buffer for the socket name, and format the name. */
-	auth_sock_dir = xstrdup("/tmp/ssh-XXXXXXXXXX");
+	auth_sock_dir = xstrdup("@TERMUX_PREFIX@/tmp/ssh-XXXXXXXXXX");

 	/* Create private directory for socket */
 	if (mkdtemp(auth_sock_dir) == NULL) {
@@ -268,7 +268,7 @@
 		return;

 	temporarily_use_uid(pw);
-	auth_info_file = xstrdup("/tmp/sshauth.XXXXXXXXXXXXXXX");
+	auth_info_file = xstrdup("@TERMUX_PREFIX@/tmp/sshauth.XXXXXXXXXXXXXXX");
 	if ((fd = mkstemp(auth_info_file)) == -1) {
 		error("%s: mkstemp: %s", __func__, strerror(errno));
 		goto out;
@@ -833,7 +833,7 @@
 		f = fopen(login_getcapstr(lc, "welcome", "/etc/motd",
 		    "/etc/motd"), "r");
 #else
-		f = fopen("/etc/motd", "r");
+		f = fopen("@TERMUX_PREFIX@/etc/motd", "r");
 #endif
 		if (f) {
 			while (fgets(buf, sizeof(buf), f))
@@ -1082,8 +1082,10 @@
 # endif /* HAVE_CYGWIN */
 #endif /* HAVE_LOGIN_CAP */

+#ifdef _PATH_MAILDIR
 	snprintf(buf, sizeof buf, "%.200s/%.50s", _PATH_MAILDIR, pw->pw_name);
 	child_set_env(&env, &envsize, "MAIL", buf);
+#endif

 	/* Normal systems set SHELL by default. */
 	child_set_env(&env, &envsize, "SHELL", shell);
@@ -1127,6 +1129,15 @@
 		    auth_sock_name);


+#ifdef __ANDROID__
+	char const* envs_to_keep[] = {"LD_LIBRARY_PATH", "PATH", "ANDROID_ROOT", "ANDROID_DATA", "EXTERNAL_STORAGE", "LANG", "PREFIX", "TMPDIR"};
+	for (i = 0; i < (sizeof(envs_to_keep) / sizeof(envs_to_keep[0])); i++) {
+		char const* env_to_keep_name = envs_to_keep[i];
+		char const* env_to_keep_value = getenv(env_to_keep_name);
+		if (env_to_keep_value) child_set_env(&env, &envsize, env_to_keep_name, env_to_keep_value);
+	}
+#endif
+
 	/* Set custom environment options from pubkey authentication. */
 	if (options.permit_user_env) {
 		for (n = 0 ; n < auth_opts->nenv; n++) {