get_parent_fragment (3) Linux Manual Page
NAME
get_parent_fragment — retrieve the parent fragment of a fragment in a dirfile
SYNOPSIS
#include <getdata.h>
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int get_parent_fragment(const DIRFILE *dirfile, intfragment_index);
DESCRIPTION
get_parent_fragment() function queries a dirfile(5) database specified by dirfile and returns the index of the fragment which contains the INCLUDE directive for the fragment indexed by fragment_index.
Since the primary format file fragment is not included in any other fragment, passing zero for fragment_index will result in an error.
RETURN VALUE
On success, get_parent_fragment() returns the index of the specified fragment’s parent. On error, get_parent_fragment() returns -1 and sets the dirfile error to a non-zero value. Possible error values are:
GD_E_BAD_DIRFILE- The supplied dirfile was invalid.
GD_E_BAD_INDEX- The supplied index was out of range, or was equal to zero. The dirfile error may be retrieved by calling
get_error(3). A descriptive error string for the last error encountered can be obtained from a call toget_error_string(3).
SEE ALSO
dirfile(5), dirfile_include(3), dirfile_open(3), get_fragmentname(3), get_nfragments(3)