freebsd-dev/lib/libc/gen/pwcache.3
Mike Pritchard 7bdf80e571 Correctly use .Fn instead of .Nm to reference function names
in a bunch of man pages.

Use the correct .Bx  (BSD UNIX) or .At (AT&T UNIX) macros
instead of explicitly specifying the version in the text
in a bunch of man pages.
1996-08-22 23:31:07 +00:00

92 lines
3.0 KiB
Groff

.\" Copyright (c) 1989, 1991, 1993
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.\" @(#)pwcache.3 8.1 (Berkeley) 6/9/93
.\"
.Dd June 9, 1993
.Dt PWCACHE 3
.Os
.Sh NAME
.Nm pwcache
.Nd cache password and group entries
.Sh SYNOPSIS
.Fn user_from_uid "uid_t uid" "int nouser"
.Fn group_from_gid "gid_t gid" "int nogroup"
.Sh DESCRIPTION
.Pp
The
.Fn user_from_uid
function returns the user name associated with the argument
.Fa uid .
The user name is cached so that multiple calls with the same
.Fa uid
do not require additional calls to
.Xr getpwuid 3 .
If there is no user associated with the
.Fa uid ,
a pointer is returned
to a string representation of the
.Fa uid ,
unless the argument
.Fa nouser
is non-zero, in which case a
.Dv NULL
pointer is returned.
.Pp
The
.Fn group_from_gid
function returns the group name associated with the argument
.Fa gid .
The group name is cached so that multiple calls with the same
.Fa gid
do not require additional calls to
.Xr getgrgid 3 .
If there is no group associated with the
.Fa gid ,
a pointer is returned
to a string representation of the
.Fa gid ,
unless the argument
.Fa nogroup
is non-zero, in which case a
.Dv NULL
pointer is returned.
.Sh SEE ALSO
.Xr getgrgid 3 ,
.Xr getpwuid 3
.Sh HISTORY
The
.Fn user_from_uid
and
.Fn group_from_gid
functions first appeared in
.Bx 4.4 .