gd_alter_protection(3) GETDATA gd_alter_protection(3)NAMEgd_alter_protection — modify the protection level of a dirfile fragment
SYNOPSIS
#include <getdata.h>
int gd_alter_protection(DIRFILE *dirfile, int protection_level, int
fragment_index);
DESCRIPTION
The gd_alter_protection() function sets the advisory protection level
of the format specification fragment given by fragment_index to protec‐
tion_level in the dirfile(5) database specified by dirfile.
The protection_level argument should be one of the following:
GD_PROTECT_NONE
Indicating that the fragment should not be protected at all.
GD_PROTECT_FORMAT
Indicating that the fragment's metadata should be protected.
GD_PROTECT_DATA
Indicating that the fragment's binary data should be protected.
GD_PROTECT_ALL
Indicating that both the fragment's metadata and its binary data
should be protected. This symbol is equivalent to the bitwise
or of GD_PROTECT_FORMAT and GD_PROTECT_DATA.
In addition to being simply a valid fragment index, fragment_index may
also be the special value GD_ALL_FRAGMENTS, which indicates that the
protection level of all fragments in the database should be changed.
RETURN VALUE
Upon successful completion, gd_alter_protection() returns zero. On er‐
ror, it returns -1 and sets the dirfile error to a non-zero error val‐
ue. Possible error values are:
GD_E_ACCMODE
The specified dirfile was opened read-only.
GD_E_ARGUMENT
The supplied protection_level was invalid.
GD_E_BAD_DIRFILE
The supplied dirfile was invalid.
GD_E_BAD_INDEX
The supplied index was out of range.
GD_E_BAD_PROTECTION
The supplied protection level was invalid.
The dirfile error may be retrieved by calling gd_error(3). A descrip‐
tive error string for the last error encountered can be obtained from a
call to gd_error_string(3).
NOTES
This is the only GetData function which ignores the (existing) protec‐
tion level of a format specification fragment.
SEE ALSOgd_open(3), gd_error(3), gd_error_string(3), gd_protection(3),
dirfile(5), dirfile-format(5)Version 0.8.0 1 January 2012 gd_alter_protection(3)
