static void sigchld_handler(int signum)
{
- write(pty_signal_pipe[1], "x", 1);
+ if (write(pty_signal_pipe[1], "x", 1) <= 0)
+ /* not much we can do about it */;
}
#ifndef OMIT_UTMP
/*
* Set the pty master into non-blocking mode.
*/
- int i = 1;
- ioctl(pty->master_fd, FIONBIO, &i);
+ int fl;
+ fl = fcntl(pty->master_fd, F_GETFL);
+ if (fl != -1 && !(fl & O_NONBLOCK))
+ fcntl(pty->master_fd, F_SETFL, fl | O_NONBLOCK);
}
if (!ptys_by_fd)
int status;
char c[1];
- read(pty_signal_pipe[0], c, 1); /* ignore its value; it'll be `x' */
+ if (read(pty_signal_pipe[0], c, 1) <= 0)
+ /* ignore error */;
+ /* ignore its value; it'll be `x' */
do {
pid = waitpid(-1, &status, WNOHANG);