NetBSD/sys/arch/alpha/stand/bootxx/headersize.c

48 lines
1.4 KiB
C

/* $NetBSD: headersize.c,v 1.2 1995/02/16 02:33:10 cgd Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <sys/types.h>
#include <sys/exec.h>
#include <machine/coff.h>
#define HDR_BUFSIZE 8192
main()
{
char buf[HDR_BUFSIZE];
if (read(0, &buf, HDR_BUFSIZE) < HDR_BUFSIZE) {
perror("read");
exit(1);
}
printf("%d\n", N_COFFTXTOFF(*((struct filehdr *)buf),
*((struct aouthdr *)(buf + sizeof(struct filehdr)))) );
}