termcap.c revision 8347 
1/*
2 * Copyright (c) 1994, Paul Richards.
3 *
4 * All rights reserved.
5 *
6 * This software may be used, modified, copied, distributed, and sold, in both
7 * source and binary form provided that the above copyright and these terms
8 * are retained, verbatim, as the first lines of this file.  Under no
9 * circumstances is the author responsible for the proper functioning of this
10 * software, nor does the author assume any responsibility for damages
11 * incurred with its use.
12 */
13
14#include <stdio.h>
15#include <stdlib.h>
16#include <string.h>
17#include <unistd.h>
18#include <stdarg.h>
19#include <fcntl.h>
20#include <sys/ioctl.h>
21#include <machine/console.h>
22
23#include "sysinstall.h"
24
25int
26set_termcap(void)
27{
28    char           *term;
29
30    OnVTY = OnSerial = FALSE;
31    term = getenv("TERM");
32    if (term == NULL) {
33	if (ioctl(STDERR_FILENO, GIO_COLOR, &ColorDisplay) < 0) {
34	    if (setenv("TERM", "vt100", 1) < 0)
35		return -1;
36	    if (setenv("TERMCAP", termcap_vt100, 1) < 0)
37		return -1;
38	    DebugFD = dup(1);
39	    OnSerial = TRUE;
40	} else if (ColorDisplay) {
41	    if (setenv("TERM", "cons25", 1) < 0)
42		return -1;
43	    if (setenv("TERMCAP", termcap_cons25, 1) < 0)
44		return -1;
45	    DebugFD = open("/dev/ttyv1", O_WRONLY);
46	    OnVTY = TRUE;
47	} else {
48	    if (setenv("TERM", "cons25-m", 1) < 0)
49		return -1;
50	    if (setenv("TERMCAP", termcap_cons25_m, 1) < 0)
51		return -1;
52	    DebugFD = open("/dev/ttyv1", O_WRONLY);
53	    OnVTY = TRUE;
54	}
55    }
56    else {
57	DebugFD = open("sysinstall.debug", O_WRONLY|O_CREAT|O_TRUNC, 0644);
58    }
59    return 0;
60}
61