tools/elf4rom/libs/libelf-0.8.10/lib/rawfile.c
changeset 34 92d87f2e53c2
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33:1af5c1be89f8 34:92d87f2e53c2
       
     1 /*
       
     2 rawfile.c - implementation of the elf_rawfile(3) function.
       
     3 Copyright (C) 1995 - 1998 Michael Riepe
       
     4 
       
     5 This library is free software; you can redistribute it and/or
       
     6 modify it under the terms of the GNU Library General Public
       
     7 License as published by the Free Software Foundation; either
       
     8 version 2 of the License, or (at your option) any later version.
       
     9 
       
    10 This library is distributed in the hope that it will be useful,
       
    11 but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       
    13 Library General Public License for more details.
       
    14 
       
    15 You should have received a copy of the GNU Library General Public
       
    16 License along with this library; if not, write to the Free Software
       
    17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
       
    18 */
       
    19 
       
    20 #include <private.h>
       
    21 
       
    22 #ifndef lint
       
    23 static const char rcsid[] = "@(#) $Id: rawfile.c,v 1.6 2005/05/21 15:39:26 michael Exp $";
       
    24 #endif /* lint */
       
    25 
       
    26 char*
       
    27 elf_rawfile(Elf *elf, size_t *ptr) {
       
    28     size_t tmp;
       
    29 
       
    30     if (!ptr) {
       
    31 	ptr = &tmp;
       
    32     }
       
    33     *ptr = 0;
       
    34     if (!elf) {
       
    35 	return NULL;
       
    36     }
       
    37     elf_assert(elf->e_magic == ELF_MAGIC);
       
    38     if (!elf->e_readable) {
       
    39 	return NULL;
       
    40     }
       
    41     else if (elf->e_size && !elf->e_rawdata) {
       
    42 	elf_assert(elf->e_data);
       
    43 	if (!elf->e_cooked) {
       
    44 	    elf->e_rawdata = elf->e_data;
       
    45 	}
       
    46 	else if (!(elf->e_rawdata = _elf_read(elf, NULL, 0, elf->e_size))) {
       
    47 	    return NULL;
       
    48 	}
       
    49 	*ptr = elf->e_size;
       
    50     }
       
    51     return elf->e_rawdata;
       
    52 }