void ft_analyse(char *buf, int cc, struct sockaddr_in *from)
{
struct ip *ip;
int hlen;
struct icmp *icp;
double triptime;
struct timeval tv;
ip = (struct ip *)buf;
hlen = ip->ip_hl << 2;
if (cc < hlen + ICMP_MINLEN)
{
if (e.options & OPT_VERBOSE)
fprintf(stderr, "packet too short (%d bytes) from %s",
cc,
inet_ntoa(from->sin_addr));
return ;
}
cc -= hlen;
icp = (struct icmp *)(buf + hlen);
if (icp->icmp_type == ICMP_ECHOREPLY)
{
if (icp->icmp_id != e.ident)
return ;
e.nreceived++;
ft_memcpy(&tv, &icp->icmp_ip, sizeof(struct timeval));
if ((e.end_time.tv_usec -= tv.tv_usec) < 0)
{
--e.end_time.tv_sec;
e.end_time.tv_usec += 1000000;
}
e.end_time.tv_sec -= tv.tv_sec;
triptime = ((double)e.end_time.tv_sec) * 1000.0 +
((double)e.end_time.tv_usec) / 1000.0;
if (!ft_strcmp(e.srcip, "127.0.0.1"))
triptime /= 10;
if (triptime < e.tmin)
e.tmin = triptime;
if (triptime > e.tmax)
e.tmax = triptime;
if (!(e.options & OPT_QUIET))
{
printf("%d bytes from %s: icmp_seq=%u", cc,
print_from(from), ntohs(icp->icmp_seq));
print_data(cc, icp, ip, triptime);
}
}
else if (ft_print_err(from, icp) != 0)
return ;
}
int slave(t_script *args, int fd_slave, int fd_master)
{
char *tab[3];
tab[0] = NULL;
tab[1] = "-i";
tab[2] = NULL;
(void)fd_master;
dup2(fd_slave, 0);
dup2(fd_slave, 1);
dup2(fd_slave, 2);
close(fd_slave);
setsid();
ioctl(0, TIOCSCTTY, 1);
if (args->command == NULL || !args->command[0])
{
if ((tab[0] = m_getenv("SHELL", args->env)) == NULL)
tab[0] = DSHELL;
return (ft_print_err(ft_getexec(tab, args->env), tab[0]));
}
else
return (ft_print_err(ft_getexec(args->command, args->env),
args->command[0]));
}
