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/*
32.newehdr.c - implementation of the elf32_newehdr(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>
Elf32_Ehdr*
elf32_newehdr(Elf *elf) {
Elf32_Ehdr *ehdr;
size_t size;
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_readable) {
return elf32_getehdr(elf);
}
else if (!elf->e_ehdr) {
size = _msize32(_elf_version, ELF_T_EHDR);
elf_assert(size);
if ((ehdr = (Elf32_Ehdr*)malloc(size))) {
memset(ehdr, 0, size);
elf->e_ehdr = (char*)ehdr;
elf->e_free_ehdr = 1;
elf->e_ehdr_flags |= ELF_F_DIRTY;
elf->e_kind = ELF_K_ELF;
elf->e_class = ELFCLASS32;
return ehdr;
}
seterr(ERROR_MEM_EHDR);
}
else if (elf->e_class != ELFCLASS32) {
seterr(ERROR_CLASSMISMATCH);
}
else {
elf_assert(elf->e_kind == ELF_K_ELF);
return (Elf32_Ehdr*)elf->e_ehdr;
}
return NULL;
}
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