elf_getehdr(3E)   MISC. REFERENCE MANUAL PAGES    elf_getehdr(3E)



NAME
     elfgetehdr: elf32getehdr, elf32newehdr - retrieve  class-
     dependent object file header

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

     #include <libelf.h>

     Elf32Ehdr *elf32getehdr(Elf *elf);
     Elf32Ehdr *elf32newehdr(Elf *elf);

DESCRIPTION
     For a 32-bit class file, elf32getehdr returns a pointer  to
     an  ELF  header,  if one is available for the ELF descriptor
     elf.  If no header exists for the descriptor,  elf32newehdr
     allocates a ``clean'' one, but it otherwise behaves the same
     as elf32getehdr.  It does not allocate a new header if  one
     exists  already.  If no header exists (for elfgetehdr), one
     cannot be created (for elfnewehdr), 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   eident[EINIDENT];
                  Elf32Half      etype;
                  Elf32Half      emachine;
                  Elf32Word      eversion;
                  Elf32Addr      eentry;
                  Elf32Off       ephoff;
                  Elf32Off       eshoff;
                  Elf32Word      eflags;
                  Elf32Half      eehsize;
                  Elf32Half      ephentsize;
                  Elf32Half      ephnum;
                  Elf32Half      eshentsize;
                  Elf32Half      eshnum;
                  Elf32Half      eshstrndx;
     elf32newehdr automatically sets the  ELFFDIRTY  bit  [see
     elfflag(3E)].   A  program  may use elfgetident to inspect
     the identification bytes from a file.

SEE ALSO
     elf(3E), elfbegin(3E), elfflag(3E), elfgetident(3E).












                    Last change: ELF Library                    1