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NetBSD 6.1.5 - man page for gelf_getehdr (netbsd section 3)

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GELF_GETEHDR(3) 		   BSD Library Functions Manual 		  GELF_GETEHDR(3)

NAME
     elf32_getehdr, elf64_getehdr, gelf_getehdr -- retrieve the object file header

LIBRARY
     library ``libelf''

SYNOPSIS
     #include <libelf.h>

     Elf32_Ehdr *
     elf32_getehdr(Elf *elf);

     Elf64_Ehdr *
     elf64_getehdr(Elf *elf);

     #include <gelf.h>

     GElf_Ehdr *
     gelf_getehdr(Elf *elf, GElf_Ehdr *dst);

DESCRIPTION
     These functions retrieve the ELF object file header from the ELF descriptor elf and return a
     translated header descriptor to their callers.

     Functions elf32_getehdr() and elf64_getehdr() return a pointer to the appropriate class-spe-
     cific header descriptor if it exists in the file referenced by descriptor elf.  These func-
     tions return NULL if an ELF header was not found in file elf.

     Function gelf_getehdr() stores a translated copy of the header for ELF file elf into the
     descriptor pointed to by argument dst.  It returns argument dst if successful or NULL in
     case of failure.

RETURN VALUES
     These functions return a pointer to a translated header descriptor if successful, or NULL on
     failure.

ERRORS
     These functions can fail with the following errors:

     [ELF_E_ARGUMENT]  The argument elf was null.

     [ELF_E_ARGUMENT]  Argument elf was not a descriptor for an ELF file.

     [ELF_E_ARGUMENT]  The elf class of descriptor elf was not recognized.

     [ELF_E_ARGUMENT]  Argument dst was null.

     [ELF_E_CLASS]     The ELF class of descriptor elf did not match that of the API function
		       being called.

     [ELF_E_HEADER]    ELF descriptor elf does not have an associated header.

     [ELF_E_RESOURCE]  An out of memory condition was detected during execution.

     [ELF_E_SECTION]   The ELF descriptor in argument elf did not adhere to the conventions used
		       for extended numbering.

     [ELF_E_VERSION]   The ELF descriptor elf had an unsupported ELF version number.

SEE ALSO
     elf(3), elf32_newehdr(3), elf64_newehdr(3), elf_flagehdr(3), elf_getident(3), gelf(3),
     gelf_newehdr(3), elf(5)

BSD					December 16, 2006				      BSD
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