When the server is started with the -displayfd option, check to make
sure that the writes succeed and give up running if they don't.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
{
#if !defined(WIN32)
if (displayfd >= 0) {
- write(displayfd, display, strlen(display));
- write(displayfd, "\n", 1);
+ if (write(displayfd, display, strlen(display)) != strlen(display))
+ FatalError("Cannot write display number to fd %d\n", displayfd);
+ if (write(displayfd, "\n", 1) != 1)
+ FatalError("Cannot write display number to fd %d\n", displayfd);
close(displayfd);
displayfd = -1;
}