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+.\"
+.\" Copyright (c) 1995 Joerg Wunsch
+.\"
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\" This product includes software developed by Joerg Wunsch
+.\" 4. The name of the developer may not be used to endorse or promote
+.\"    products derived from this software without specific prior written
+.\"    permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd April 10, 1995
+.Dt CUSERID 3
+.Os
+.Sh NAME
+.Nm cuserid
+.Nd get user name associated with effective UID
+.Sh LIBRARY
+.Lb libcompat
+.Sh SYNOPSIS
+.In stdio.h
+.Ft char *
+.Fn cuserid "char *s"
+.Sh DESCRIPTION
+.Bf -symbolic
+The
+.Fn cuserid
+function is made obsolete by
+.Xr getpwuid 3 .
+.Ef
+.Pp
+The function
+.Fn cuserid
+gets the user name associated with the effective UID of the current
+process.
+If the argument
+.Fa s
+is non-NULL, the name is copied to the buffer it points to,
+and that address is being returned.
+This buffer must provide space
+for at least
+.Em L_cuserid
+characters.
+The L_cuserid constant is defined in
+.In stdio.h .
+.Pp
+If
+.Fa s
+is NULL, an internal array is used and its address will be returned.
+.Sh RETURN VALUES
+The
+.Fn cuserid
+function returns the address of an array in which the name has been stored.
+.Pp
+If the name associated with the effective UID of the current process
+could not be found, either a null pointer will be returned, or
+(if
+.Fa s
+is non-NULL)
+the buffer
+.Fa s
+will be filled with a null string.
+.Sh SEE ALSO
+.Xr geteuid 2 ,
+.Xr getpwuid 3