freebsd-dev/usr.sbin/sysinstall/termcap.c
Ed Schouten 81590c5b37 Move sysinstall/sade away from TIOCGSIZE.
Both sysinstall and sade still seem to use the TIOCGSIZE ioctl to obtain
the terminal dimensions. We'd better use TIOCGWINSZ to do this. The
TIOCGWINSZ interface is preferred, because it also allows sizes in pixels
to be passed to the application (though this is not used here).

Approved by:	philip (mentor)
2008-05-23 14:24:33 +00:00

151 lines
3.9 KiB
C

/*
* Copyright (c) 1994, Paul Richards.
*
* All rights reserved.
*
* This software may be used, modified, copied, distributed, and sold, in both
* source and binary form provided that the above copyright and these terms
* are retained, verbatim, as the first lines of this file. Under no
* circumstances is the author responsible for the proper functioning of this
* software, nor does the author assume any responsibility for damages
* incurred with its use.
*
* $FreeBSD$
*/
#include "sysinstall.h"
#include <stdarg.h>
#include <fcntl.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/consio.h>
#define VTY_STATUS_LINE 24
#define TTY_STATUS_LINE 23
static void
prompt_term(char **termp, char **termcapp)
{
char str[80];
static struct {
const char *term, *termcap;
} lookup[] = { { "ansi", termcap_ansi },
{ "vt100", termcap_vt100 },
{ "cons25", termcap_cons25 },
{ "cons25-m", termcap_cons25_m },
{ "xterm", termcap_xterm },
{ "cons25w", termcap_cons25w } }; /* must be last */
if (RunningAsInit) {
while (1) {
int i;
printf("\nThese are the predefined terminal types available to\n");
printf("sysinstall when running stand-alone. Please choose the\n");
printf("closest match for your particular terminal.\n\n");
printf("1 ...................... Standard ANSI terminal.\n");
printf("2 ...................... VT100 or compatible terminal.\n");
printf("3 ...................... FreeBSD system console (color).\n");
printf("4 ...................... FreeBSD system console (monochrome).\n\n");
printf("5 ...................... xterm terminal emulator.\n\n");
printf("Your choice: (1-5) ");
fflush(stdout);
fgets(str, sizeof(str), stdin);
i = str[0] - '0';
if (i > 0 && i < 6) {
*termp = (char *)lookup[i - 1].term;
*termcapp = (char *)lookup[i - 1].termcap;
break;
}
else
printf("\007Invalid choice, please try again.\n\n");
}
}
else {
printf("\nPlease set your TERM variable before running this program.\n");
printf("Defaulting to an ANSI compatible terminal - please press RETURN\n");
fgets(str, sizeof(str), stdin); /* Just to make it interactive */
*termp = (char *)"ansi";
*termcapp = (char *)termcap_ansi;
}
}
int
set_termcap(void)
{
char *term;
int stat;
struct winsize ws;
term = getenv("TERM");
stat = ioctl(STDERR_FILENO, GIO_COLOR, &ColorDisplay);
if (!RunningAsInit) {
if (isDebug())
DebugFD = open("sysinstall.debug", O_WRONLY|O_CREAT|O_TRUNC, 0644);
else
DebugFD = -1;
if (DebugFD < 0)
DebugFD = open("/dev/null", O_RDWR, 0);
}
if (!OnVTY || (stat < 0)) {
if (!term) {
char *term, *termcap;
prompt_term(&term, &termcap);
if (setenv("TERM", term, 1) < 0)
return -1;
if (setenv("TERMCAP", termcap, 1) < 0)
return -1;
}
if (DebugFD < 0)
DebugFD = open("/dev/null", O_RDWR, 0);
}
else {
int i, on;
if (getpid() == 1) {
DebugFD = open("/dev/ttyv1", O_WRONLY);
if (DebugFD != -1) {
on = 1;
i = ioctl(DebugFD, TIOCCONS, (char *)&on);
msgDebug("ioctl(%d, TIOCCONS, NULL) = %d (%s)\n",
DebugFD, i, !i ? "success" : strerror(errno));
}
}
#ifdef PC98
if (!term) {
if (setenv("TERM", "cons25w", 1) < 0)
return -1;
if (setenv("TERMCAP", termcap_cons25w, 1) < 0)
return -1;
}
#else
if (ColorDisplay) {
if (!term) {
if (setenv("TERM", "cons25", 1) < 0)
return -1;
if (setenv("TERMCAP", termcap_cons25, 1) < 0)
return -1;
}
}
else {
if (!term) {
if (setenv("TERM", "cons25-m", 1) < 0)
return -1;
if (setenv("TERMCAP", termcap_cons25_m, 1) < 0)
return -1;
}
}
#endif
}
if (ioctl(0, TIOCGWINSZ, &ws) == -1) {
msgDebug("Unable to get terminal size - errno %d\n", errno);
ws.ws_row = 0;
}
StatusLine = ws.ws_row ? ws.ws_row - 1: (OnVTY ? VTY_STATUS_LINE : TTY_STATUS_LINE);
return 0;
}