.TH NOCHK 2
.SH NAME
nochk \- control security checking by file
.SH SYNOPSIS
.B nochk(fd, onoff);
.SH DESCRIPTION
.I Nochk
modifies file security checks in processes that have capability
.BR T_NOCHK .
If
.I onoff
is 1, file descriptor
.I fd
becomes exempt from security checks; this is the default state.
If
.I onoff
is 0, the file descriptor will be checked as if the process
did not have capability
.BR T_NOCHK .
.PP
The return value is the previous checking state.
.SH SEE ALSO
.IR getplab (2)
.SH DIAGNOSTICS
.B EBADF
.SH BUGS
It would have been wise to let 0 be the default state,
but this would have required modifying standard
utilities, such as
.IR fsck (8),
which must be run with privilege
.BR T_NOCHK .