gd_protection(3)

gd_protection \(em report the protection level of a Dirfile fragment

Section 3 libgetdata-doc bookworm source

Description

gd_protection

NAME

gd_protection — report the protection level of a Dirfile fragment

SYNOPSIS

#include <getdata.h>

int gd_protection(DIRFILE *dirfile, int fragment_index);

DESCRIPTION

The gd_protection() function queries a dirfile(5) database specified by dirfile and determines the advisory protection level for the fragment indexed by fragment_index.

RETURN VALUE

Upon successful completion, gd_protection() returns a non-negative integer indicating the the advisory protection level of the specified fragment. This integer will equal one of the following symbols:

GD_PROTECT_NONE, GD_PROTECT_FORMAT, GD_PROTECT_DATA, GD_PROTECT_ALL.

The meaning of these symbols are explained in the gd_alter_protection(3) man page. On error, it returns a negative-valued error code. Possible error codes are:
GD_E_BAD_DIRFILE

The supplied dirfile was invalid.

GD_E_BAD_INDEX

The supplied index was out of range.

The error code is also stored in the DIRFILE object and may be retrieved after this function returns by calling gd_error(3). A descriptive error string for the error may be obtained by calling gd_error_string(3).

HISTORY

The get_protection() function appeared in GetData-0.5.0.

In GetData-0.7.0 this function was renamed to gd_protection().

In GetData-0.10.0, the error return from this function changed from -1 to a negative-valued error code.