termcap.c revision 9202 
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 = RunningAsInit = FALSE;
33
34    term = getenv("TERM");
35    stat = ioctl(STDERR_FILENO, GIO_COLOR, &ColorDisplay);
36
37    if (getpid() != 1)
38	DebugFD = open("sysinstall.debug", O_WRONLY|O_CREAT|O_TRUNC, 0644);
39    else
40	RunningAsInit = TRUE;
41
42    if (stat < 0) {
43	if (!term) {
44	    if (setenv("TERM", "vt100", 1) < 0)
45		return -1;
46	    if (setenv("TERMCAP", termcap_vt100, 1) < 0)
47		return -1;
48	}
49	if (DebugFD == -1)
50	    DebugFD = dup(1);
51    }
52    else {
53	int i, on;
54
55	DebugFD = open("/dev/ttyv1", O_WRONLY);
56	on = 1;
57	i = ioctl(DebugFD, TIOCCONS, (char *)&on);
58	msgDebug("ioctl(%d, TIOCCONS, NULL) = %d (%s)\n", DebugFD, i, !i ? "success" : strerror(errno));
59	OnVTY = TRUE;
60	if (ColorDisplay) {
61	    if (!term) {
62		if (setenv("TERM", "cons25", 1) < 0)
63		    return -1;
64		if (setenv("TERMCAP", termcap_cons25, 1) < 0)
65		    return -1;
66	    }
67	}
68	else {
69	    if (!term) {
70		if (setenv("TERM", "cons25-m", 1) < 0)
71		    return -1;
72		if (setenv("TERMCAP", termcap_cons25_m, 1) < 0)
73		    return -1;
74	    }
75	}
76    }
77    return 0;
78}
79