rpm/libelf/getident.c

45 lines
1.2 KiB
C
Executable File

/*
getident.c - implementation of the elf_getident(3) function.
Copyright (C) 1995 Michael Riepe <riepe@ifwsn4.ifw.uni-hannover.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <private.h>
char*
elf_getident(Elf *elf, size_t *ptr) {
size_t tmp;
if (!ptr) {
ptr = &tmp;
}
if (!elf) {
*ptr = 0;
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_kind != ELF_K_ELF) {
*ptr = elf->e_idlen;
return elf->e_data;
}
if (elf->e_ehdr || _elf_cook(elf)) {
*ptr = elf->e_idlen;
return elf->e_ehdr;
}
*ptr = 0;
return NULL;
}