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#include "apue.h"
static void sig_alrm(int);
int
main(void)
{
int n;
char line[MAXLINE];
if (signal(SIGALRM, sig_alrm) == SIG_ERR)
err_sys("signal(SIGALRM) error");
alarm(10);
if ((n = read(STDIN_FILENO, line, MAXLINE)) < 0)
err_sys("read error");
alarm(0);
write(STDOUT_FILENO, line, n);
exit(0);
}
static void
sig_alrm(int signo)
{
/* nothing to do, just return to interrupt the read */
}
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