elf_getident(3) [freebsd man page]

ELF_GETIDENT(3) 					   BSD Library Functions Manual 					   ELF_GETIDENT(3)

NAME

     elf_getident -- return the initial bytes of a file

LIBRARY

     ELF Access Library (libelf, -lelf)

SYNOPSIS

     #include <libelf.h>

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

DESCRIPTION

     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.

RETURN VALUES

     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.

ERRORS

     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).

SEE ALSO

     elf(3), elf32_getehdr(3), elf64_getehdr(3), elf_getarhdr(3), elf_getbase(3), elf_getflags(3), elf_kind(3), elf_rawfile(3), elf_update(3),
     gelf(3), gelf_getclass(3), gelf_getehdr(3)

BSD
								   July 3, 2006 							       BSD

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

NAME

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

LIBRARY

     ELF Access Library (libelf, -lelf)

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-specific header descriptor if it exists in the file
     referenced by descriptor elf.  These functions 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