1.\"	$NetBSD: elf_getshdrnum.3,v 1.2 2014/03/09 16:58:04 christos Exp $
2.\"
3.\" Copyright (c) 2006,2008 Joseph Koshy.  All rights reserved.
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14.\" This software is provided by Joseph Koshy ``as is'' and
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26.\" Id: elf_getshdrnum.3 467 2009-08-05 18:18:49Z jkoshy
27.\"
28.Dd August 4, 2009
29.Os
30.Dt ELF_GETSHDRNUM 3
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.Ar elf
45and stores it into the location pointed to by argument
46.Ar shnum .
47.Pp
48This routine allows applications to uniformly process both normal ELF
49objects, and ELF objects that use extended section numbering.
50.Pp
51.Sh RETURN VALUES
52Function
53.Fn elf_getshdrnum
54returns zero value if successful, or -1 in case of an error.
55.Sh ERRORS
56Function
57.Fn elf_getshdrnum
58can fail with the following errors:
59.Bl -tag -width "[ELF_E_RESOURCE]"
60.It Bq Er ELF_E_ARGUMENT
61A NULL value was passed in for argument
62.Ar elf .
63.It Bq Er ELF_E_ARGUMENT
64Argument
65.Ar elf
66was not for an ELF file.
67.It Bq Er ELF_E_ARGUMENT
68Argument
69.Ar elf
70lacks an ELF Executable header.
71.El
72.Sh SEE ALSO
73.Xr elf 3 ,
74.Xr elf32_getehdr 3 ,
75.Xr elf64_getehdr 3 ,
76.Xr elf_getident 3 ,
77.Xr elf_getphdrnum 3 ,
78.Xr elf_getshdrstrndx 3 ,
79.Xr gelf 3 ,
80.Xr gelf_getehdr 3
81