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.TH ELF32_GETCHDR 3 2024-08-14 "Libelf" "Libelf Programmer's Manual"
.SH NAME
elf32_getchdr, elf64_getchdr \- retrieve the compression header for a
section from a 32-bit or 64-bit ELF object file.
.SH SYNOPSIS
.nf
.B #include <libelf.h>
.BI "Elf32_Chdr *elf32_getchdr(Elf_Scn *" scn ");"
.BI "Elf64_Chdr *elf64_getchdr(Elf_Scn *" scn ");"
.SH DESCRIPTION
Retrieve the compression header for a section with compressed data.
Sections with compressed data are indicated with the
.B SHF_COMPRESSED
flag. See
.BR libelf (3)
for more information regarding the compression header.
.SH PARAMETERS
.TP
.I scn
Section whose compression header will be retrieved. The section's
.B SHF_COMPRESSED
flag must be set.
.SH RETURN VALUE
On success, return a pointer to the compression header. On failure,
return NULL and set a libelf error code.
.SH SEE ALSO
.BR elf_compress (3),
.BR elf_errno (3),
.BR libelf (3),
.BR elf (5)
.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
.TS
allbox;
lbx lb lb
l l l.
Interface Attribute Value
T{
.na
.nh
.BR elf32_getchdr (),
.BR elf64_getchdr ()
T} Thread safety MT-Safe
.TE
.SH REPORTING BUGS
Report bugs to <elfutils-devel@sourceware.org> or https://sourceware.org/bugzilla/.
.SH HISTORY
.B elf32_getchdr
first appeared in elfutils 0.165.
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