xref: /freebsd/contrib/elftoolchain/libelf/elf_getshdrstrndx.3 (revision cc68614da8232d8baaca0ae0d0dd8f890f06623e)
1.\" Copyright (c) 2006,2008 Joseph Koshy.  All rights reserved.
2.\"
3.\" Redistribution and use in source and binary forms, with or without
4.\" modification, are permitted provided that the following conditions
5.\" are met:
6.\" 1. Redistributions of source code must retain the above copyright
7.\"    notice, this list of conditions and the following disclaimer.
8.\" 2. Redistributions in binary form must reproduce the above copyright
9.\"    notice, this list of conditions and the following disclaimer in the
10.\"    documentation and/or other materials provided with the distribution.
11.\"
12.\" This software is provided by Joseph Koshy ``as is'' and
13.\" any express or implied warranties, including, but not limited to, the
14.\" implied warranties of merchantability and fitness for a particular purpose
15.\" are disclaimed.  in no event shall Joseph Koshy be liable
16.\" for any direct, indirect, incidental, special, exemplary, or consequential
17.\" damages (including, but not limited to, procurement of substitute goods
18.\" or services; loss of use, data, or profits; or business interruption)
19.\" however caused and on any theory of liability, whether in contract, strict
20.\" liability, or tort (including negligence or otherwise) arising in any way
21.\" out of the use of this software, even if advised of the possibility of
22.\" such damage.
23.\"
24.\" $Id: elf_getshdrstrndx.3 3643 2018-10-14 21:09:24Z jkoshy $
25.\"
26.Dd August 5, 2009
27.Dt ELF_GETSHDRSTRNDX 3
28.Os
29.Sh NAME
30.Nm elf_getshdrstrndx
31.Nd retrieve the index of the section name string table
32.Sh LIBRARY
33.Lb libelf
34.Sh SYNOPSIS
35.In libelf.h
36.Ft int
37.Fn elf_getshdrstrndx "Elf *elf" "size_t *ndxptr"
38.Sh DESCRIPTION
39Function
40.Fn elf_getshdrstrndx
41retrieves the section index of the string table containing section
42names from descriptor
43.Ar elf
44and stores it into the location pointed to by argument
45.Ar ndxptr .
46.Pp
47This function allow applications to process both normal ELF
48objects and ELF objects that use extended section numbering uniformly.
49.Sh RETURN VALUES
50These functions return zero if successful, or -1 in case of an error.
51.Sh ERRORS
52These functions can fail with the following errors:
53.Bl -tag -width "[ELF_E_RESOURCE]"
54.It Bq Er ELF_E_ARGUMENT
55A NULL value was passed in for argument
56.Ar elf .
57.It Bq Er ELF_E_ARGUMENT
58Argument
59.Ar elf
60was not for an ELF file.
61.It Bq Er ELF_E_ARGUMENT
62Argument
63.Ar elf
64lacks an ELF Executable header.
65.It Bq Er ELF_E_ARGUMENT
66Argument
67.Ar ndx
68contained a value in the reserved range of section indices.
69.El
70.Sh SEE ALSO
71.Xr elf 3 ,
72.Xr elf32_getehdr 3 ,
73.Xr elf64_getehdr 3 ,
74.Xr elf_getident 3 ,
75.Xr elf_getphdrnum 3 ,
76.Xr elf_getshdrnum 3 ,
77.Xr gelf 3 ,
78.Xr gelf_getehdr 3
79