Open64: osprey/libelf/lib/rand.c Source File

00001 /*
00002  * Copyright 2005 PathScale, Inc.  All Rights Reserved.
00003  */
00004 
00005 /*
00006 rand.c - implementation of the elf_rand(3) function.
00007 Copyright (C) 1995 - 1998 Michael Riepe <michael@stud.uni-hannover.de>
00008 
00009 This library is free software; you can redistribute it and/or
00010 modify it under the terms of the GNU Library General Public
00011 License as published by the Free Software Foundation; either
00012 version 2 of the License, or (at your option) any later version.
00013 
00014 This library is distributed in the hope that it will be useful,
00015 but WITHOUT ANY WARRANTY; without even the implied warranty of
00016 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017 Library General Public License for more details.
00018 
00019 You should have received a copy of the GNU Library General Public
00020 License along with this library; if not, write to the Free Software
00021 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00022 */
00023 
00024 #include <private.h>
00025 
00026 #ifndef lint
00027 static const char rcsid[] = "@(#) $Id: rand.c,v 1.1.1.1 2005/10/21 19:00:00 marcel Exp $";
00028 #endif /* lint */
00029 
00030 size_t
00031 elf_rand(Elf *elf, size_t offset) {
00032     if (!elf) {
00033   return 0;
00034     }
00035     elf_assert(elf->e_magic == ELF_MAGIC);
00036     if (elf->e_kind != ELF_K_AR) {
00037   seterr(ERROR_NOTARCHIVE);
00038     }
00039     else if (offset <= 0 || offset > elf->e_size) {
00040   seterr(ERROR_BADOFF);
00041     }
00042     else {
00043   elf->e_off = offset;
00044   return offset;
00045     }
00046     return 0;
00047 }