admin/mod.c

   1 /*
   2  * Copyright (c) 1997 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by Kungliga Tekniska
  20  *      Högskolan and its contributors.
  21  *
  22  * 4. Neither the name of the Institute nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 #include "admin_locl.h"
  40
  41 RCSID("$Id$");
  42
  43 static void
  44 doit2(HDB *db, hdb_entry *ent, int changepw, int (*func)(hdb_entry *))
  45 {
  46     char buf[1024];
  47     int ret;
  48     krb5_principal hata;
  49
  50     hata = ent->principal;
  51
  52     ret = db->fetch(context, db, ent);
  53
  54     switch(ret){
  55     case HDB_ERR_NOENTRY:
  56         krb5_warnx(context, "Entry not found in database");
  57         return;
  58     case 0:
  59         krb5_free_principal (context, hata);
  60         break;
  61     default:
  62         krb5_err(context, 1, ret, "dbget");
  63     }
  64
  65     if(changepw == 0) {
  66         edit_entry (ent);
  67         for(;;) {
  68             fprintf(stderr, "Change password? (y/n) ");
  69             fgets(buf, sizeof(buf), stdin);
  70             if(buf[0] == 'n' || buf[0] == 'y' || buf[0] == 'N' || buf[0] == 'Y')
  71                 break;
  72             fprintf(stderr, "Please answer yes or no.\n");
  73         }
  74         if(buf[0] == 'y' || buf[0] == 'Y')
  75             changepw = 1;
  76     }
  77
  78     if(changepw)
  79         if((*func)(ent))
  80             return;
  81
  82     set_modified_by (ent);
  83
  84     ret = db->store(context, db, 1, ent);
  85     if(ret)
  86         krb5_err(context, 1, ret, "db->store");
  87 }
  88
  89 static void
  90 doit(const char *principal, int changepw, int (*func)(hdb_entry *))
  91 {
  92     hdb_entry ent;
  93     krb5_error_code ret;
  94
  95     memset(&ent, 0, sizeof(ent));
  96     ret = db->open(context, db, O_RDWR, 0600);
  97     if(ret) {
  98         krb5_warn(context, ret, "hdb_open");
  99         return;
 100     }
 101     krb5_parse_name(context, principal, &ent.principal);
 102
 103     doit2(db, &ent, changepw, func);
 104     db->close(context, db);
 105     hdb_free_entry(context, &ent);
 106 }
 107
 108 int
 109 mod_entry(int argc, char **argv)
 110 {
 111     if(argc != 2) {
 112         krb5_warnx(context, "Usage: mod_entry principal");
 113         return 0;
 114     }
 115
 116     doit(argv[1], 0, set_password);
 117     return 0;
 118 }
 119
 120 int
 121 passwd(int argc, char **argv)
 122 {
 123     if(argc != 2) {
 124         krb5_warnx(context, "Usage: passwd principal");
 125         return 0;
 126     }
 127
 128     doit(argv[1], 1, set_password);
 129     return 0;
 130 }
 131
 132 int
 133 change_random_key(int argc, char **argv)
 134 {
 135     if(argc != 2) {
 136         krb5_warnx(context, "Usage: change_random_key principal");
 137         return 0;
 138     }
 139
 140     doit(argv[1], 1, set_random_key);
 141     return 0;
 142 }