elf_rawfile man page on HP-UX

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elf_rawfile(3E)						       elf_rawfile(3E)

       elf_rawfile - retrieve uninterpreted file contents

       [flag... ] file...  [library] ...

       returns	a  pointer  to	an uninterpreted byte image of the file.  This
       function should be used only to retrieve a file being read.  For	 exam‐
       ple, a program might use to retrieve the bytes for an archive member.

       A program may not close or disable (see elf_cntl(3E)) the file descrip‐
       tor associated with elf before the initial call to because  might  have
       to read the data from the file if it does not already have the original
       bytes in memory.	  Generally,  this  function  is  more	efficient  for
       unknown	file  types  than  for	object	files.	The library implicitly
       translates object files in memory, while it leaves unknown files unmod‐
       ified.	Thus  asking for the uninterpreted image of an object file may
       create a duplicate copy in memory.

       (see elf_getdata(3E)) is a related function, providing access  to  sec‐
       tions within a file.

       If  ptr is non-null, the library also stores the file's size, in bytes,
       in the location to which ptr points.  If no data	 is  present,  elf  is
       null, or an error occurs, the return value is a null pointer, with zero
       optionally stored through ptr.

       A program that uses and that also interprets the same file as an object
       file potentially has two copies of the bytes in memory.	If such a pro‐
       gram requests the raw image first, before it asks for translated infor‐
       mation  (through	 such functions as and so on), the library ``freezes''
       its original memory copy for the raw image.  It then uses  this	frozen
       copy as the source for creating translated objects, without reading the
       file again.  Consequently, the application should  view	the  raw  file
       image  returned	by as a read-only buffer, unless it wants to alter its
       own view of data subsequently translated.  In any case, the application
       may  alter the translated objects without changing bytes visible in the
       raw image.

       Multiple calls to with the same ELF descriptor return the  same	value;
       the library does not create duplicate copies of the file.

       elf(3E), elf_begin(3E), elf_cntl(3E), elf_getdata(3E), elf_getehdr(3E),
       elf_getident(3E), elf_kind(3E).


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