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.TH ELF_RAND 3 2025-06-30 "Libelf" "Libelf Programmer's Manual"
.SH NAME
elf_rand - Set the offset for the next archive member in an ELF file.
.SH SYNOPSIS
.nf
#include <libelf.h>
.BI "size_t elf_rand(Elf *" elf ", size_t " offset ");"
.fi
.SH DESCRIPTION
The
.BR elf_rand ()
function sets the current archive member offset for the ELF archive descriptor
.I elf
to
.IR offset .
This function is only valid when
.I elf
refers to an archive descriptor (i.e., its kind is
.BR ELF_K_AR ).
Archive member offsets can be acquired from the
.I Elf_Arsym
array returned by
.BR elf_getarsym (3).
If the archive header at the given offset cannot be parsed or validated,
then 0 is returned.
.SH PARAMETERS
.TP
.I elf
A pointer to an ELF archive descriptor.
.TP
.I offset
A byte offset to the archive header, indicating the desired member position.
.SH RETURN VALUE
Returns the input
.I offset
if successful. Returns 0 if
.I elf
is NULL, is not an archive descriptor, or if an error occurs while reading the member at
.IR offset .
.SH SEE ALSO
.BR elf_getarsym (3),
.BR elf_next (3),
.BR libelf (3),
.BR elf (5)
.SH ATTRIBUTES
.TS
allbox;
lbx lb lb
l l l.
Interface Attribute Value
T{
.na
.nh
.BR elf_rand ()
T} Thread safety MT-Safe
.TE
.SH REPORTING BUGS
Report bugs to <elfutils-devel@sourceware.org> or https://sourceware.org/bugzilla/.
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