From 4f0f217c1b6a8c888ff8a1c60d1eb36cbdf14490 Mon Sep 17 00:00:00 2001 From: Nathan Binkert Date: Sat, 26 May 2007 18:15:22 -0700 Subject: Get rid of GNU libelf and its autoconf nastiness and replace it with FreeBSD's implementation --HG-- extra : convert_revision : ef9c4551b9a6b54b76a89f286ff9804c55790621 --- ext/libelf/elf_rand.c | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 ext/libelf/elf_rand.c (limited to 'ext/libelf/elf_rand.c') diff --git a/ext/libelf/elf_rand.c b/ext/libelf/elf_rand.c new file mode 100644 index 000000000..ac44aea31 --- /dev/null +++ b/ext/libelf/elf_rand.c @@ -0,0 +1,56 @@ +/*- + * Copyright (c) 2006 Joseph Koshy + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + + +#include +#include "libelf.h" + +#include "_libelf.h" + +off_t +elf_rand(Elf *ar, off_t offset) +{ + struct ar_hdr *arh; + + if (ar == NULL || ar->e_kind != ELF_K_AR || + (offset & 1) || offset < SARMAG || + offset + sizeof(struct ar_hdr) >= ar->e_rawsize) { + LIBELF_SET_ERROR(ARGUMENT, 0); + return 0; + } + + arh = (struct ar_hdr *) (ar->e_rawfile + offset); + + /* a too simple sanity check */ + if (arh->ar_fmag[0] != '`' || arh->ar_fmag[1] != '\n') { + LIBELF_SET_ERROR(ARCHIVE, 0); + return 0; + } + + ar->e_u.e_ar.e_next = offset; + + return (offset); +} -- cgit v1.2.3