NAME
elf32_getshdr, elf64_getshdr, gelf_getshdr – retrieve the class-dependent section header
LIBRARY
library “libelf”
SYNOPSIS
#include <libelf.h>
Elf32_Shdr *
elf32_getshdr(Elf_Scn *scn);
Elf64_Shdr *
elf64_getshdr(Elf_Scn *scn);
#include <gelf.h>
GElf_Shdr *
gelf_getshdr(Elf_Scn *scn, GElf_Shdr *shdr);
DESCRIPTION
These functions return a pointer to the ELF Section Header data structure associated with section descriptor scn.
Function elf32_getshdr() retrieves a pointer to an Elf32_Shdr structure. Section descriptor scn must be associated with an ELF descriptor of class ELFCLASS32.
Function elf64_getshdr() retrieves a pointer to an Elf64_Shdr structure. Section descriptor scn must be associated with an ELF descriptor of class ELFCLASS64.
Function gelf_getshdr() copies the values in the section header associated with argument scn to the structure pointed to be argument dst. The GElf_Shdr data structure is described in gelf(3).
RETURN VALUES
Functions elf32_getshdr() and elf64_getshdr() return a valid pointer to the appropriate section header on success or NULL if an error was encountered.
Function gelf_getshdr() returns argument dst if successful, or NULL if an error was encountered.
ERRORS
These functions may fail with the following errors:
- [ELF_E_ARGUMENT]
-
Arguments scn or shdr were NULL.
- [ELF_E_ARGUMENT]
-
Argument scn was not associated a descriptor for an ELF object.
- [ELF_E_CLASS]
-
The ELF class associated with the section descriptor scn did not match the class expected by the API.