freebsd-dev/lib/libelf/elf_getshnum.3
2006-12-16 10:45:43 +00:00

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.\" Copyright (c) 2006 Joseph Koshy. All rights reserved.
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.\" $FreeBSD$
.\"
.Dd October 31, 2006
.Os
.Dt ELF_GETSHNUM 3
.Sh NAME
.Nm elf_getshnum
.Nd return the number of sections in an ELF file
.Sh LIBRARY
.Lb libelf
.Sh SYNOPSIS
.In libelf.h
.Ft int
.Fn elf_getshnum "Elf *elf" "size_t *shnum"
.Sh DESCRIPTION
Function
.Fn elf_getshnum
retrieves the number of ELF sections associated with descriptor
.Ar elf
and stores it into the location pointed to by argument
.Ar shnum .
.Pp
This routine allows applications to uniformly process both normal ELF
objects, and ELF objects that use extended section numbering.
.Pp
.Sh RETURN VALUES
Function
.Fn elf_getshnum
returns a non-zero value if successful, or zero in case of an
error.
.Sh ERRORS
Function
.Fn elf_getshnum
can fail with the following errors:
.Bl -tag -width "[ELF_E_RESOURCE]"
.It Bq Er ELF_E_ARGUMENT
A NULL value was passed in for argument
.Ar elf .
.It Bq Er ELF_E_ARGUMENT
Argument
.Ar elf
was not for an ELF file.
.It Bq Er ELF_E_ARGUMENT
Argument
.Ar elf
lacks an ELF Executable header.
.El
.Sh SEE ALSO
.Xr elf 3 ,
.Xr elf32_getehdr 3 ,
.Xr elf64_getehdr 3 ,
.Xr elf_getident 3 ,
.Xr elf_getshstrndx 3 ,
.Xr gelf 3 ,
.Xr gelf_getehdr 3