1.\" 2.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice(s), this list of conditions and the following disclaimer as 9.\" the first lines of this file unmodified other than the possible 10.\" addition of one or more copyright notices. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice(s), this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 16.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18.\" DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY 19.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 22.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 25.\" DAMAGE. 26.\" 27.\" $FreeBSD$ 28.\" 29.Dd July 10, 2001 30.Dt UIDINFO 9 31.Os 32.Sh NAME 33.Nm uidinfo , 34.Nm uihashinit , 35.Nm uifind , 36.Nm uihold , 37.Nm uifree 38.Nd "functions for managing UID information" 39.Sh SYNOPSIS 40.In sys/param.h 41.In sys/resourcevar.h 42.Ft void 43.Fn uihashinit void 44.Ft "struct uidinfo *" 45.Fn uifind "uid_t uid" 46.Ft void 47.Fn uihold "struct uidinfo *uip" 48.Ft void 49.Fn uifree "struct uidinfo *uip" 50.Sh DESCRIPTION 51The 52.Nm 53family of functions 54is used to manage 55.Vt uidinfo 56structures. 57The 58.Vt uidinfo 59structure maintains the process count and socket buffer space usage 60for a given UID. 61.Pp 62The 63.Fn uihashinit 64function initializes the 65.Vt uidinfo 66hash table. 67This function should only be called during system initialization. 68.Pp 69The 70.Fn uifind 71function looks up and returns the 72.Vt uidinfo 73structure for the 74.Fa uid . 75If the 76.Vt uidinfo 77is not found, a new structure is allocated. 78.Pp 79The 80.Fn uihold 81function increases the reference count on the 82.Vt uidinfo 83structure. 84.Pp 85The 86.Fn uifree 87function decreases the reference count on the 88.Vt uidinfo 89structure. 90If the count reaches 0, the storage for the structure is freed. 91.Sh RETURN VALUES 92The functions that return values all return a pointer to a 93.Vt uidinfo 94structure. 95.Sh AUTHORS 96This man page was written by 97.An Chad David Aq davidc@acns.ab.ca . 98