util.c


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#include <stdlib.h>
#include <stdbool.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <sys/types.h>

#include "util.h"

void panic(const char *msg)
{
    perror(msg);
    exit(EXIT_FAILURE);
}

int setblocking(int fd, bool blocking)
{
    u_long mode = blocking ? 0 : 1;
    if (ioctl(fd, FIONBIO, &mode) == -1)
        return ERROR;

    return OK;
}