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

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ELF_CNTL(3)			   BSD Library Functions Manual 		      ELF_CNTL(3)

     elf_cntl -- control an elf file descriptor

     library ``libelf''

     #include <libelf.h>

     elf_cntl(Elf *elf, Elf_Cmd cmd);

     Function elf_cntl() controls the ELF library's subsequent use of the file descriptor used to
     create ELF descriptor elf.

     Argument cmd informs the library of the action to be taken:

     ELF_C_FDDONE  This value instructs the ELF library not to perform any further I/O on the
		   file descriptor associated with argument elf.  For ELF descriptors opened with
		   mode ELF_C_WRITE or ELF_C_RDWR subsequent elf_update() operations on the
		   descriptor will fail.

     ELF_C_FDREAD  This value instructs the ELF library to read in all necessary data associated
		   with ELF descriptor elf into memory so that the underlying file descriptor can
		   be safely closed with command ELF_C_FDDONE.

     Argument elf must be an ELF descriptor associated with a file system object (e.g., an ar(1)
     archive, an ELF file, or other data file).

     Due to use of mmap(2) internally, this function is a no-op for for ELF objects opened in
     ELF_C_READ mode.

     Function elf_cntl() returns 0 on success, or -1 if an error was detected.

     [ELF_E_ARCHIVE]   Argument elf is a descriptor for an archive member.

     [ELF_E_ARGUMENT]  Argument elf was NULL.

     [ELF_E_ARGUMENT]  Argument cmd was not recognized.

     [ELF_E_MODE]      An ELF_C_FDREAD operation was requested on an ELF descriptor opened for

     elf(3), elf_begin(3), elf_end(3), elf_next(3), elf_update(3), gelf(3)

BSD					  August 9, 2006				      BSD
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