2 * Copyright (c) 2006 Joseph Koshy
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 gelf_getsymshndx(Elf_Data
*d
, Elf_Data
*id
, int ndx
, GElf_Sym
*dst
,
44 if (gelf_getsym(d
, ndx
, dst
) == 0)
47 if (id
== NULL
|| (scn
= id
->d_scn
) == NULL
||
48 (e
= scn
->s_elf
) == NULL
|| (e
!= d
->d_scn
->s_elf
) ||
50 LIBELF_SET_ERROR(ARGUMENT
, 0);
55 assert(ec
== ELFCLASS32
|| ec
== ELFCLASS64
);
58 sh_type
= scn
->s_shdr
.s_shdr32
.sh_type
;
60 sh_type
= scn
->s_shdr
.s_shdr64
.sh_type
;
62 if (_libelf_xlate_shtype(sh_type
) != ELF_T_WORD
||
63 id
->d_type
!= ELF_T_WORD
) {
64 LIBELF_SET_ERROR(ARGUMENT
, 0);
68 msz
= _libelf_msize(ELF_T_WORD
, ec
, e
->e_version
);
72 if (msz
* ndx
>= id
->d_size
) {
73 LIBELF_SET_ERROR(ARGUMENT
, 0);
77 *shindex
= ((Elf32_Word
*) id
->d_buf
)[ndx
];
83 gelf_update_symshndx(Elf_Data
*d
, Elf_Data
*id
, int ndx
, GElf_Sym
*gs
,
92 if (gelf_update_sym(d
, ndx
, gs
) == 0)
95 if (id
== NULL
|| (scn
= id
->d_scn
) == NULL
||
96 (e
= scn
->s_elf
) == NULL
|| (e
!= d
->d_scn
->s_elf
)) {
97 LIBELF_SET_ERROR(ARGUMENT
, 0);
102 assert(ec
== ELFCLASS32
|| ec
== ELFCLASS64
);
104 if (ec
== ELFCLASS32
)
105 sh_type
= scn
->s_shdr
.s_shdr32
.sh_type
;
107 sh_type
= scn
->s_shdr
.s_shdr64
.sh_type
;
109 if (_libelf_xlate_shtype(sh_type
) != ELF_T_WORD
||
110 d
->d_type
!= ELF_T_WORD
) {
111 LIBELF_SET_ERROR(ARGUMENT
, 0);
115 msz
= _libelf_msize(ELF_T_WORD
, ec
, e
->e_version
);
118 if (msz
* ndx
>= id
->d_size
) {
119 LIBELF_SET_ERROR(ARGUMENT
, 0);
123 *(((Elf32_Word
*) id
->d_buf
) + ndx
) = xindex
;