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1 : : /* Manipulate ELF header flags.
2 : : Copyright (C) 1999, 2000, 2001, 2002, 2015 Red Hat, Inc.
3 : : This file is part of elfutils.
4 : : Written by Ulrich Drepper <drepper@redhat.com>, 1999.
5 : :
6 : : This file is free software; you can redistribute it and/or modify
7 : : it under the terms of either
8 : :
9 : : * the GNU Lesser General Public License as published by the Free
10 : : Software Foundation; either version 3 of the License, or (at
11 : : your option) any later version
12 : :
13 : : or
14 : :
15 : : * the GNU General Public License as published by the Free
16 : : Software Foundation; either version 2 of the License, or (at
17 : : your option) any later version
18 : :
19 : : or both in parallel, as here.
20 : :
21 : : elfutils is distributed in the hope that it will be useful, but
22 : : WITHOUT ANY WARRANTY; without even the implied warranty of
23 : : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 : : General Public License for more details.
25 : :
26 : : You should have received copies of the GNU General Public License and
27 : : the GNU Lesser General Public License along with this program. If
28 : : not, see <http://www.gnu.org/licenses/>. */
29 : :
30 : : #ifdef HAVE_CONFIG_H
31 : : # include <config.h>
32 : : #endif
33 : :
34 : : #include <libelf.h>
35 : : #include <stddef.h>
36 : :
37 : : #include "libelfP.h"
38 : :
39 : :
40 : : unsigned int
41 : 8 : elf_flagehdr (Elf *elf, Elf_Cmd cmd, unsigned int flags)
42 : : {
43 : 8 : unsigned int result;
44 : :
45 [ - + ]: 8 : if (elf == NULL)
46 : : return 0;
47 : :
48 [ - + ]: 8 : if (unlikely (elf->kind != ELF_K_ELF))
49 : : {
50 : 0 : __libelf_seterrno (ELF_E_INVALID_HANDLE);
51 : 0 : return 0;
52 : : }
53 : :
54 [ + - ]: 8 : if (likely (cmd == ELF_C_SET))
55 : 8 : result = (elf->state.elf.ehdr_flags |= (flags & ELF_F_DIRTY));
56 [ # # ]: 0 : else if (cmd == ELF_C_CLR)
57 : 0 : result = (elf->state.elf.ehdr_flags &= ~(flags & ELF_F_DIRTY));
58 : : else
59 : : {
60 : 0 : __libelf_seterrno (ELF_E_INVALID_COMMAND);
61 : 0 : return 0;
62 : : }
63 : :
64 : : return result;
65 : : }
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