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NetBSD 6.1.5 - man page for elf32_checksum (netbsd section 3)

GELF_CHECKSUM(3)		   BSD Library Functions Manual 		 GELF_CHECKSUM(3)

NAME
     elf32_checksum, elf64_checksum, gelf_checksum -- return the checksum of an ELF object

LIBRARY
     library ``libelf''

SYNOPSIS
     #include <libelf.h>

     long
     elf32_checksum(Elf *elf);

     long
     elf64_checksum(Elf *elf);

     #include <gelf.h>

     long
     gelf_checksum(Elf *elf);

DESCRIPTION
     These functions return a simple checksum of the ELF object described by their argument elf.
     The checksum is computed in way that allows its value to remain unchanged in presence of
     modifications to the ELF object by utilities like strip(1).

     Function elf32_checksum() returns a checksum for an ELF descriptor elf of class ELFCLASS32.

     Function elf64_checksum() returns a checksum for an ELF descriptor elf of class ELFCLASS64.

     Function gelf_checksum() provides a class-independent way retrieving the checksum for ELF
     object elf.

RETURN VALUES
     These functions return the checksum of the ELF object, or zero in case an error was encoun-
     tered.

ERRORS
     These functions may fail with the following errors:

     [ELF_E_ARGUMENT]  Argument elf was NULL.

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

     [ELF_E_ARGUMENT]  The ELF descriptor elf was not opened for reading or updating.

     [ELF_E_CLASS]     For functions elf32_checksum() and elf64_checksum(), ELF descriptor elf
		       did not match the class of the called function.

     [ELF_E_HEADER]    The ELF object specified by argument elf had a malformed executable
		       header.

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

     [ELF_E_SECTION]   The ELF object specified by argument elf contained a section with a mal-
		       formed section header.

     [ELF_E_VERSION]   The ELF object was of an unsupported version.

SEE ALSO
     strip(1), elf(3), gelf(3)

BSD					 August 29, 2006				      BSD


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