+++ /dev/null
-/* $OpenBSD: headersize.c,v 1.11 2021/10/24 21:24:22 deraadt Exp $ */
-/* $NetBSD: headersize.c,v 1.5 1996/09/23 04:32:59 cgd Exp $ */
-
-/*
- * Copyright (c) 1995, 1996 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.
- */
-
-#define ELFSIZE 64
-
-#include <sys/types.h>
-#include <sys/fcntl.h>
-#include <sys/exec.h>
-#include <sys/exec_elf.h>
-
-#include <unistd.h>
-#include <stdio.h>
-#include <err.h>
-
-#define HDR_BUFSIZE 512
-
-int
-main(argc, argv)
- int argc;
- char *argv[];
-{
- char buf[HDR_BUFSIZE], *fname;
-#ifdef ALPHA_BOOT_ELF
- Elf64_Ehdr *elfp;
-#endif
- int fd;
- unsigned long loadaddr;
-
- if (argc != 3)
- errx(1, "must be given two arguments (load addr, file name)");
- if (sscanf(argv[1], "%lx", &loadaddr) != 1)
- errx(1, "load addr argument (%s) not valid", argv[1]);
- fname = argv[2];
-
- if ((fd = open(fname, O_RDONLY)) == -1)
- err(1, "%s: open failed", fname);
-
- if (read(fd, &buf, HDR_BUFSIZE) != HDR_BUFSIZE)
- err(1, "%s: read failed", fname);
-#ifdef ALPHA_BOOT_ELF
- elfp = (Elf64_Ehdr *)buf;
-#endif
-
-#ifdef ALPHA_BOOT_ELF
- if (memcmp(ELFMAG, elfp->e_ident, SELFMAG) == 0) {
- Elf64_Phdr phdr;
-
- /* XXX assume the first segment is the one we want */
- if (lseek(fd, elfp->e_phoff, SEEK_SET) == -1)
- err(1, "%s: lseek phdr failed", fname);
- if (read(fd, (void *)&phdr, sizeof(phdr)) != sizeof(phdr))
- err(1, "%s: read phdr failed", fname);
-
- printf("%ld\n", phdr.p_offset + (loadaddr - phdr.p_vaddr));
- }
- else
-#endif
- errx(1, "%s: bad magic number", fname);
-
- close(fd);
- exit(0);
-}