Add 'No ANSI terminal' option.

attach.c

@@ -41,8 +41,11 @@ restore_term(void)
 	tcsetattr(0, TCSADRAIN, &orig_term);
 
 	/* Make cursor visible. Assumes VT100. */
-	printf("\033[?25h");
+	if (!no_ansiterm)
+	    printf("\033[?25h");
 	fflush(stdout);
+	if (no_ansiterm)
+	    (void)system("tput init 2>/dev/null");
 }
 
 /* Connects to a unix domain socket */
@@ -215,7 +218,8 @@ attach_main(int noerror)
 	tcsetattr(0, TCSADRAIN, &cur_term);
 
 	/* Clear the screen. This assumes VT100. */
-	write(1, "\33[H\33[J", 6);
+	if (!no_ansiterm)
+	    write(1, "\33[H\33[J", 6);
 
 	/* Tell the master that we want to attach. */
 	memset(&pkt, 0, sizeof(struct packet));

dtach.h

@@ -82,7 +82,7 @@
 #endif
 
 extern char *progname, *sockname;
-extern int detach_char, no_suspend, redraw_method;
+extern int detach_char, no_suspend, redraw_method, no_ansiterm;
 extern struct termios orig_term;
 extern int dont_have_tty;
 

main.c

@@ -37,6 +37,8 @@ int detach_char = '\\' - 64;
 int no_suspend;
 /* The default redraw method. Initially set to unspecified. */
 int redraw_method = REDRAW_UNSPEC;
+/* 1 if we should not send ansi sequences to the terminal */
+int no_ansiterm = 0;
 
 /*
 ** The original terminal settings. Shared between the master and attach
@@ -79,6 +81,7 @@ usage()
 		"\t\t   ctrl_l: Send a Ctrl L character to the program.\n"
 		"\t\t    winch: Send a WINCH signal to the program.\n"
 		"  -z\t\tDisable processing of the suspend key.\n"
+		"  -t\t\tDisable VT100 assumptions.\n"
 		"\nReport any bugs to <" PACKAGE_BUGREPORT ">.\n",
 		PACKAGE_VERSION, __DATE__, __TIME__);
 	exit(0);
@@ -159,6 +162,8 @@ main(int argc, char **argv)
 				detach_char = -1;
 			else if (*p == 'z')
 				no_suspend = 1;
+			else if (*p == 't')
+				no_ansiterm = 1;
 			else if (*p == 'e')
 			{
 				++argv; --argc;