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get_parent_fragment

NAME

get_parent_fragment --- retrieve the parent fragment of a fragment in a dirfile

SYNOPSIS

#include <getdata.h>

int get_parent_fragment(const DIRFILE *dirfile, int fragment_index);

DESCRIPTION

The 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 to get_error_string(3).

SEE ALSO

dirfile(5), dirfile_include(3), dirfile_open(3), get_fragmentname(3), get_nfragments(3)