#include <u.h>
#include <libc.h>
#include <auth.h>
#include <mp.h>
#include <libsec.h>
#include <der.h>
#include <bio.h>


void
usage(void)
{
	fprint(2, "usage: %s <file>\n", argv0);
	exits("usage");
}

void
main(int argc, char *argv[])
{
	Dir *d;
	uchar *buf;
	vlong len;
	Biobuf out;
	int fd, got, n;


	ARGBEGIN{
	default:
		usage();
	}ARGEND;

	if(argc != 1)
		usage();
	if((fd = open(argv[0], OREAD)) == -1)
		sysfatal("%s cannot open, %r", argv[0]);

	d = dirfstat(fd);
	len = d->length;
	free(d);

	if((buf = malloc(len)) == nil)
		sysfatal("No memory\n");

	got = 0;
	while((n = read(fd, buf+got, len-got)) > 0)
		got += n;

	Binit(&out, 1, OWRITE);
	der_dump(buf, got);
	exits(nil);
}