tests: Add terminal emulator compatibility tests.

Add tests emulating the behavior of several different terminal
emulators using both Telnet and RLogin. Hitherto, there has
been no automated testing of terminal emulators, so this will
help protect against possible regressions in the future if/as
changes are made in pty.c and corresponding net drivers.

tests/menus.conf

@@ -3,6 +3,7 @@ title = Main Menu
 q = quit|Logoff
 a = menu:a|Menu A1
 b = menu:b|Menu B
+u = menu:u|Menu U
 
 [a]
 title = Menu A1
@@ -16,3 +17,8 @@ q = return|Back
 [b]
 title = Menu B
 q = return|Back
+
+[u]
+title = Menu U
+a = return|Test Token
+q = return|Back

tests/net_telnet.conf

@@ -0,0 +1,3 @@
+[telnet]
+port = 23
+ttyport = 2245

tests/test.c

@@ -837,6 +837,7 @@ static int run_test(const char *filename, int multiple)
 				fprintf(modulefp, "[users]\r\n%s=%s\r\n", TEST_USER, TEST_HASH);
 				fprintf(modulefp, "%s=%s\r\n", TEST_USER2, TEST_HASH2);
 				fprintf(modulefp, "%s=%s\r\n", TEST_USER3, TEST_HASH3);
+				fprintf(modulefp, "%s=%s\r\n", TEST_USER4, TEST_HASH4);
 				fclose(modulefp);
 			}
 			if (option_autoload_all) {

tests/test.h

@@ -85,6 +85,10 @@ struct test_module *TEST_MODULE_SELF_SYM(void);
 #define TEST_HASH3 "$2y$10$0hcFFDyIUBkNcqMPw9G0t.vR.c8oBArJJOE1tK1atcPWkk9XBhvzK"
 #define TEST_SASL3 "dGVzdHVzZXIyAHRlc3R1c2VyMgBQQHNzdzByRA=="
 
+#define TEST_USER4 "termtest"
+#define TEST_PASS4 "TERMPASS"
+#define TEST_HASH4 "$2y$10$aa80TI0jN6Dqq3G5ctBKruBFwL6iYCCPNJ6vV7TjZ.xN1enqPrODq"
+
 #define ENDL "\r\n"
 
 int test_dir_file_count(const char *directory);