gd_fragment_index man page

gd_fragment_index — retrieve the fragment containing a dirfile field


#include <getdata.h>

int gd_fragment_index(const DIRFILE *dirfile, const char *entry_name);


The gd_fragment_index() function queries a dirfile(5) database specified by dirfile and returns the index number of the fragment defining the field or alias specified by entry_name, which may not contain a representation suffix.

This is one of the few GetData functions which does not resolve aliases: supplying the name of an alias as entry_name will return the index of the fragment containing the alias itself and not that of its target.

Return Value

Upon successful completion, gd_fragment_index() returns the requested fragment index. On error, gd_fragment_index() returns -1 and sets the dirfile error a non-zero error value. Possible error values are:

The library was unable to allocate memory.
The entry specified by entry_name was not found in the database.
The supplied dirfile was invalid.

The dirfile error may be retrieved by calling gd_error(3). A descriptive error string for the last error encountered can be obtained from a call to gd_error_string(3).

See Also

gd_open(3), gd_entry(3), gd_error(3), gd_error_string(3), gd_fragmentname(3), gd_parent_fragment(3), dirfile(5)


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