NAME

elf_getehdr: elf32_getehdr, elf32_newehdr - retrieve class-dependent object file header

SYNOPSIS

cc [flag ...] file ...  -lelf [library ...]

#include <libelf.h>

Elf32_Ehdr *elf32_getehdr(Elf *elf);
Elf32_Ehdr *elf32_newehdr(Elf *elf);

DESCRIPTION

For a 32-bit class file, elf32_getehdr returns a pointer  to
an  ELF  header,  if one is available for the ELF descriptor
elf.  If no header exists for the descriptor,  elf32_newehdr
allocates a ``clean'' one, but it otherwise behaves the same
as elf32_getehdr.  It does not allocate a new header if  one
exists  already.  If no header exists (for elf_getehdr), one
cannot be created (for elf_newehdr), a system error  occurs,
the  file  is  not a 32-bit class file, or elf is null, both
functions return a null pointer.  The  header  includes  the
following members.
             unsigned char   e_ident[EI_NIDENT];
             Elf32_Half      e_type;
             Elf32_Half      e_machine;
             Elf32_Word      e_version;
             Elf32_Addr      e_entry;
             Elf32_Off       e_phoff;
             Elf32_Off       e_shoff;
             Elf32_Word      e_flags;
             Elf32_Half      e_ehsize;
             Elf32_Half      e_phentsize;
             Elf32_Half      e_phnum;
             Elf32_Half      e_shentsize;
             Elf32_Half      e_shnum;
             Elf32_Half      e_shstrndx;
elf32_newehdr automatically sets the  ELF_F_DIRTY  bit  [see
elf_flag(3E)].   A  program  may use elf_getident to inspect
the identification bytes from a file.

SEE ALSO

elf(3E), elf_begin(3E), elf_flag(3E), elf_getident(3E).