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.\"	@(#)pwcache.3	5.1 (Berkeley) 03/05/90
.\"
.TH PWCACHE 3 ""
.UC 7
.SH NAME
pwcache \- cache password and group entries
.SH SYNOPSIS
.ft B
.nf
user_from_uid(uid)
uid_t uid;

group_from_gid(gid)
gid_t gid;
.fi
.ft R
.SH DESCRIPTION
.ft B
This interface is not part of the C library.
It has been placed in the Berkeley utility library, libutil, as it is
used by several standard utilities.
.ft R
.PP
The
.I user_from_uid
function returns the user name associated with the argument uid.
The user name is cached so that multiple calls with the same uid 
do not require additional calls to
.IR getpwuid (3).
.PP
The
.I group_from_gid
function returns the group name associated with the argument gid.
The group name is cached so that multiple calls with the same gid
do not require additional calls to
.IR getgrgid (3).
.SH SEE ALSO
getgrgid(3), getpwuid(3)