gelf_getcap man page on FreeBSD

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GELF_GETCAP(3)		 BSD Library Functions Manual		GELF_GETCAP(3)

     gelf_getcap, gelf_update_cap — read and update ELF capability information

     library “libelf”

     #include <gelf.h>

     GElf_Cap *
     gelf_getcap(Elf_Data *data, int ndx, GElf_Cap *cap);

     gelf_update_cap(Elf_Data *data, int ndx, GElf_Cap *cap);

     These convenience functions are used to retrieve and update class-depen‐
     dent Elf32_Cap or Elf64_Cap information.

     Argument data is an Elf_Data descriptor associated with a section of type
     SHT_SUNW_cap.  Argument ndx is the index of the entry being retrieved or
     updated.  The class-independent GElf_Cap structure is described in

     Function gelf_getcap() retrieves the class-dependent entry at index ndx
     in data buffer data and copies it to the destination pointed to by argu‐
     ment cap after translation to class-independent form.

     Function gelf_update_cap() converts the class-independent entry pointed
     to by argument cap to class-dependent form, and writes it to the entry at
     index ndx in the data buffer described by argument data.  Function
     gelf_update_cap() signals an error if any of the values in the class-
     independent representation exceeds the representable limits of the target

     Function gelf_getcap() returns the value of argument cap if successful,
     or NULL in case of an error.  Function gelf_update_cap() returns a non-
     zero value if successful, or zero in case of an error.

     These functions may fail with the following errors:

     [ELF_E_ARGUMENT]  Arguments data or cap were NULL.

     [ELF_E_ARGUMENT]  Argument ndx was less than zero or larger than the num‐
		       ber of entries in the data descriptor.

     [ELF_E_ARGUMENT]  Data descriptor data was not associated with a section
		       of type SHT_SUNW_cap.

     [ELF_E_RANGE]     A value was not representable in the target type.

     elf(3), elf_getdata(3), elf_getscn(3), gelf(3)

BSD				August 29, 2006				   BSD

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