termcap.c revision 16208 
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/errno.h>
21#include <sys/ioctl.h>
22#include <machine/console.h>
23
24#include "sysinstall.h"
25
26int
27set_termcap(void)
28{
29    char           *term;
30    int		   stat;
31
32    OnVTY = FALSE;
33    term = getenv("TERM");
34    stat = ioctl(STDERR_FILENO, GIO_COLOR, &ColorDisplay);
35
36    if (getpid() != 1)
37	DebugFD = open("sysinstall.debug", O_WRONLY|O_CREAT|O_TRUNC, 0644);
38
39    if (stat < 0) {
40	if (!term) {
41	    if (setenv("TERM", "vt100", 1) < 0)
42		return -1;
43	    if (setenv("TERMCAP", termcap_vt100, 1) < 0)
44		return -1;
45	}
46	if (DebugFD == -1)
47	    DebugFD = dup(1);
48    }
49    else {
50	int i, on;
51
52	if (getpid() == 1) {
53	    DebugFD = open("/dev/ttyv1", O_WRONLY);
54	    on = 1;
55	    i = ioctl(DebugFD, TIOCCONS, (char *)&on);
56	    msgDebug("ioctl(%d, TIOCCONS, NULL) = %d (%s)\n", DebugFD, i, !i ? "success" : strerror(errno));
57	}
58	if (ColorDisplay) {
59	    if (!term) {
60		if (setenv("TERM", "cons25", 1) < 0)
61		    return -1;
62		if (setenv("TERMCAP", termcap_cons25, 1) < 0)
63		    return -1;
64	    }
65	}
66	else {
67	    if (!term) {
68		if (setenv("TERM", "cons25-m", 1) < 0)
69		    return -1;
70		if (setenv("TERMCAP", termcap_cons25_m, 1) < 0)
71		    return -1;
72	    }
73	}
74	OnVTY = TRUE;
75    }
76    return 0;
77}
78