termcap.c revision 16293 
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	if (DebugFD < 0)
39	    DebugFD = open("/dev/null", O_RDWR, 0);
40    }
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	if (getpid() == 1) {
56	    DebugFD = open("/dev/ttyv1", O_WRONLY);
57	    on = 1;
58	    i = ioctl(DebugFD, TIOCCONS, (char *)&on);
59	    msgDebug("ioctl(%d, TIOCCONS, NULL) = %d (%s)\n", DebugFD, i, !i ? "success" : strerror(errno));
60	}
61	if (ColorDisplay) {
62	    if (!term) {
63		if (setenv("TERM", "cons25", 1) < 0)
64		    return -1;
65		if (setenv("TERMCAP", termcap_cons25, 1) < 0)
66		    return -1;
67	    }
68	}
69	else {
70	    if (!term) {
71		if (setenv("TERM", "cons25-m", 1) < 0)
72		    return -1;
73		if (setenv("TERMCAP", termcap_cons25_m, 1) < 0)
74		    return -1;
75	    }
76	}
77	OnVTY = TRUE;
78    }
79    return 0;
80}
81