Manual Pages  — ELF_GETIDENT

elf_getident – return the initial bytes of a file

LIBRARY SYNOPSIS DESCRIPTION RETURN VALUES ERRORS SEE ALSO

ELF Access Library (libelf, -lelf)

#include <libelf.h>

char *
elf_getident(Elf *elf, size_t *sz);

Function elf_getident() returns a pointer to the initial bytes of the file for descriptor elf.

If argument sz is non-null, the size of the identification area returned is written to the location pointed to by sz. This location is set to zero on errors.

Function elf_getident() will return a non-NULL pointer to the initial bytes of the file if successful, or NULL if an error condition is detected.

Function elf_getident() can fail with the following errors:

[ELF_E_ARGUMENT]
	A NULL value was passed in for argument elf.
[ELF_E_SEQUENCE]
	ELF descriptor elf was opened for writing and function elf_getident() was called before a call to elf_update(3).