Restricted shell for SSH tunnel users
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>
void sig_handler(int signo)
{
if (signo == SIGHUP)
exit(0);
}
int main()
{
printf("OK\n");
while(1)
sleep(1);
exit(0);
}
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