ref: e27e91297f7cae8d2eb522018b8a13b24ff24f19
dir: /sys/src/cmd/ip/dhcpd/testping.c/
#include <u.h>
#include <libc.h>
#include <ip.h>
#include <bio.h>
#include <ndb.h>
#include "dat.h"
char *blog = "ipboot";
void
main(int argc, char **argv)
{
fmtinstall('E', eipconv);
fmtinstall('I', eipconv);
if(argc < 2)
exits(0);
if(icmpecho(argv[1]))
fprint(2, "%s live\n", argv[1]);
else
fprint(2, "%s doesn't answer\n", argv[1]);
}