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Abort if window size too small

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Force window size to 80x24 (if the watched game's window size is larger than
the watcher's, chaos results)


git-svn-id: svn://katsu.triplehelix.org/dgamelaunch/trunk@247 db0b04b0-f4d1-0310-9a6d-de3e77497b0e
This commit is contained in:
Jilles Tjoelker 2004-02-20 17:57:29 +00:00
parent 44c608a12f
commit 89181d3dcd
1 changed files with 25 additions and 19 deletions
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44
dgamelaunch.c
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@ -219,22 +219,23 @@ create_config ()
void void
ttyrec_getmaster () ttyrec_getpty ()
{ {
(void) tcgetattr (0, &tt);
if (-1 == ioctl (0, TIOCGWINSZ, (char *) &win))
{
win.ws_row = 24;
win.ws_col = 80;
win.ws_xpixel = win.ws_col * 8;
win.ws_ypixel = win.ws_row * 8;
}
#ifdef USE_OPENPTY #ifdef USE_OPENPTY
if (openpty (&master, &slave, NULL, &tt, &win) == -1) if (openpty (&master, &slave, NULL, NULL, NULL) == -1)
graceful_exit (62);
#else #else
if ((master = open ("/dev/ptmx", O_RDWR)) < 0) if ((master = open ("/dev/ptmx", O_RDWR)) < 0)
#endif
graceful_exit (62); graceful_exit (62);
grantpt (master);
unlockpt (master);
if ((slave = open ((const char *) ptsname (master), O_RDWR)) < 0)
{
graceful_exit (65);
}
#endif
ioctl (slave, TIOCSWINSZ, (char *) &win);
tcsetattr(slave, TCSANOW, &tt);
} }
/* ************************************************************* */ /* ************************************************************* */
@ -1613,17 +1614,22 @@ main (int argc, char** argv)
/* signal handlers */ /* signal handlers */
signal (SIGHUP, catch_sighup); signal (SIGHUP, catch_sighup);
/* get master tty just before chroot (lives in /dev) */ (void) tcgetattr (0, &tt);
ttyrec_getmaster (); if (ioctl (0, TIOCGWINSZ, (char *) &win) == 0)
#ifndef USE_OPENPTY
grantpt (master);
unlockpt (master);
if ((slave = open ((const char *) ptsname (master), O_RDWR)) < 0)
{ {
graceful_exit (65); if (win.ws_row < 24 || win.ws_col < 80)
{
fprintf(stderr, "ERROR: dgamelaunch needs at least 80x24 screen.\n");
graceful_exit(1);
}
} }
#endif win.ws_row = 24;
win.ws_col = 80;
win.ws_xpixel = win.ws_col * 8;
win.ws_ypixel = win.ws_row * 8;
/* get master tty just before chroot (lives in /dev) */
ttyrec_getpty ();
/* chroot */ /* chroot */
if (chroot (myconfig->chroot)) if (chroot (myconfig->chroot))