xref: /netbsd-src/external/bsd/elftoolchain/dist/libelf/elf_getshdrnum.3 (revision 5ac3bc719ce6e70593039505b491894133237d12)
1.\"	$NetBSD: elf_getshdrnum.3,v 1.6 2024/03/03 17:37:33 christos Exp $
2.\"
3.\" Copyright (c) 2006,2008 Joseph Koshy.  All rights reserved.
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8.\" 1. Redistributions of source code must retain the above copyright
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14.\" This software is provided by Joseph Koshy ``as is'' and
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26.\" Id: elf_getshdrnum.3 3956 2022-03-12 12:39:30Z jkoshy
27.\"
28.Dd August 4, 2009
29.Dt ELF_GETSHDRNUM 3
30.Os
31.Sh NAME
32.Nm elf_getshdrnum
33.Nd return the number of sections in an ELF file
34.Sh LIBRARY
35.Lb libelf
36.Sh SYNOPSIS
37.In libelf.h
38.Ft int
39.Fn elf_getshdrnum "Elf *elf" "size_t *shnum"
40.Sh DESCRIPTION
41Function
42.Fn elf_getshdrnum
43retrieves the number of ELF sections associated with descriptor
44.Fa elf
45and stores it into the location pointed to by argument
46.Fa shnum .
47.Pp
48This routine allows applications to uniformly process both normal ELF
49objects, and ELF objects that use extended section numbering.
50.Sh RETURN VALUES
51Function
52.Fn elf_getshdrnum
53returns zero value if successful, or -1 in case of an error.
54.Sh ERRORS
55Function
56.Fn elf_getshdrnum
57can fail with the following errors:
58.Bl -tag -width "[ELF_E_RESOURCE]"
59.It Bq Er ELF_E_ARGUMENT
60A
61.Dv NULL
62value was passed in for argument
63.Fa elf .
64.It Bq Er ELF_E_ARGUMENT
65Argument
66.Fa elf
67was not for an ELF file.
68.It Bq Er ELF_E_ARGUMENT
69Argument
70.Fa elf
71lacks an ELF Executable header.
72.El
73.Sh SEE ALSO
74.Xr elf 3 ,
75.Xr elf32_getehdr 3 ,
76.Xr elf64_getehdr 3 ,
77.Xr elf_getident 3 ,
78.Xr elf_getphdrnum 3 ,
79.Xr elf_getshdrstrndx 3 ,
80.Xr gelf 3 ,
81.Xr gelf_getehdr 3
82