usr/src/cmd/lp/lib/users/usermgmt.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 /* LINTLIBRARY */
  33
  34 # include       <stdio.h>
  35
  36 # include       "lp.h"
  37 # include       "users.h"
  38
  39 static int loaded = 0;
  40 static struct user_priority *ppri_tbl;
  41 struct user_priority *ld_priority_file();
  42 static USER usr;
  43
  44 int putuser ( char * user, USER * pri_s )
  45 {
  46     int fd;
  47
  48     if (!loaded)
  49     {
  50         if (!(ppri_tbl = ld_priority_file(Lp_Users)))
  51             return(-1);
  52         loaded = 1;
  53     }
  54
  55     if (!add_user(ppri_tbl, user, pri_s->priority_limit))
  56     {
  57         return(-1);
  58     }
  59
  60     if ((fd = open_locked(Lp_Users, "w", LPU_MODE)) < 0)
  61         return(-1);
  62     output_tbl(fd, ppri_tbl);
  63     close(fd);
  64     return(0);
  65 }
  66
  67 USER * getuser ( char * user )
  68 {
  69     int limit;
  70
  71     /* root and lp do not get a limit */
  72     if (STREQU(user, "root") || STREQU(user, LPUSER))
  73     {
  74         usr.priority_limit = 0;
  75         return(&usr);
  76     }
  77
  78     if (!loaded)
  79     {
  80         if (!(ppri_tbl = ld_priority_file(Lp_Users)))
  81             return((USER *)0);
  82
  83         loaded = 1;
  84     }
  85
  86     for (limit = PRI_MIN; limit <= PRI_MAX; limit++)
  87         if (bang_searchlist(user, ppri_tbl->users[limit - PRI_MIN]))
  88         {
  89             usr.priority_limit = limit;
  90             return(&usr);
  91         }
  92
  93     usr.priority_limit = ppri_tbl->deflt_limit;
  94     return(&usr);
  95 }
  96
  97 int deluser ( char * user )
  98 {
  99     int fd;
 100
 101     if (!loaded)
 102     {
 103         if (!(ppri_tbl = ld_priority_file(Lp_Users)))
 104             return(-1);
 105
 106         loaded = 1;
 107     }
 108
 109     del_user(ppri_tbl, user);
 110
 111     if ((fd = open_locked(Lp_Users, "w", LPU_MODE)) < 0)
 112         return(-1);
 113
 114     output_tbl(fd, ppri_tbl);
 115     close(fd);
 116     return(0);
 117 }
 118
 119 int getdfltpri ( void )
 120 {
 121     if (!loaded)
 122     {
 123         if (!(ppri_tbl = ld_priority_file(Lp_Users)))
 124             return(-1);
 125
 126         loaded = 1;
 127     }
 128
 129     return (ppri_tbl->deflt);
 130 }
 131
 132 void
 133 trashusers(void)
 134 {
 135     int limit;
 136
 137     if (loaded)
 138     {
 139         if (ppri_tbl)
 140         {
 141             for (limit = PRI_MIN; limit <= PRI_MAX; limit++)
 142                 freelist (ppri_tbl->users[limit - PRI_MIN]);
 143             ppri_tbl = 0;
 144         }
 145         loaded = 0;
 146     }
 147 }
 148