elf32_getehdr(3)

Usage

#include <libelf.h>
Elf32_Ehdr *elf32_getehdr(Elf *elf);

Overview

elf32_getehdr retrieves the ELF header for the given 32-bit ELF descriptor elf. The ELF header contains crucial metadata about the ELF file, such as the type, machine, version, entry point, program header table offset, and section header table offset. See elf(5) for more information regarding the ELF header.

Parameters

elf: Pointer to the ELF descriptor from which to retrieve the ELF header.

Return value

On success, elf32_getehdr returns a pointer to the Elf32_Ehdr structure. If the ELF descriptor is invalid or not a 32-bit ELF, it returns NULL and sets an error code retrievable by elf_errno(3).

Releases

Unchanged in 2 releases since Debian 13 (Trixie).

13–Arch

Referred to by

elf_update(3) update an ELF descriptor elf_getident(3) return the ELF identification bytes elf_getshnum(3) retrieve the number of section headers in an ELF file gelf_getphdr(3) Retrieve class-independent program header table entries for an ELF object file gelf_newehdr(3) allocate and initialize a new ELF file header elf32_getphdr(3) retrieve the program header table for a 32-bit or 64-bit ELF object file elf32_newehdr(3) create a new ELF header for a 32-bit or 64-bit ELF object file elf64_getehdr(3) retrieve the ELF header for a 64-bit ELF descriptor elf64_getphdr(3) retrieve the program header table for a 32-bit or 64-bit ELF object file elf64_newehdr(3) create a new ELF header for a 32-bit or 64-bit ELF object file elf_getphdrnum(3) retrieve the number of program headers in an ELF file elf_getshdrnum(3) retrieve the number of section headers in an ELF file elf_getshstrndx(3) retrieve the section header string table index elf_getshdrstrndx(3) retrieve the section header string table index elf_getphnum(3) return the number of program headers in an ELF file elf_setshstrndx(3) retrieve/update the index of the section name string table