lib/kadm5/get_princs_s.c

   1 /*
   2  * Copyright (c) 1997, 1998, 1999 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. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "kadm5_locl.h"
  35
  36 RCSID("$Id$");
  37
  38 struct foreach_data {
  39     const char *exp;
  40     char *exp2;
  41     char **princs;
  42     int count;
  43 };
  44
  45 static krb5_error_code
  46 add_princ(struct foreach_data *d, char *princ)
  47 {
  48     char **tmp;
  49     tmp = realloc(d->princs, (d->count + 1) * sizeof(*tmp));
  50     if(tmp == NULL)
  51         return ENOMEM;
  52     d->princs = tmp;
  53     d->princs[d->count++] = princ;
  54     return 0;
  55 }
  56
  57 static krb5_error_code
  58 foreach(krb5_context context, HDB *db, hdb_entry_ex *ent, void *data)
  59 {
  60     struct foreach_data *d = data;
  61     char *princ;
  62     krb5_error_code ret;
  63     ret = krb5_unparse_name(context, ent->entry.principal, &princ);
  64     if(ret)
  65         return ret;
  66     if(d->exp){
  67         if(fnmatch(d->exp, princ, 0) == 0 || fnmatch(d->exp2, princ, 0) == 0)
  68             ret = add_princ(d, princ);
  69         else
  70             free(princ);
  71     }else{
  72         ret = add_princ(d, princ);
  73     }
  74     if(ret)
  75         free(princ);
  76     return ret;
  77 }
  78
  79 kadm5_ret_t
  80 kadm5_s_get_principals(void *server_handle,
  81                        const char *expression,
  82                        char ***princs,
  83                        int *count)
  84 {
  85     struct foreach_data d;
  86     kadm5_server_context *context = server_handle;
  87     kadm5_ret_t ret;
  88
  89     if (!context->keep_open) {
  90         ret = context->db->hdb_open(context->context, context->db, O_RDONLY, 0);
  91         if(ret) {
  92             krb5_warn(context->context, ret, "opening database");
  93             return ret;
  94         }
  95     }
  96     d.exp = expression;
  97     {
  98         krb5_realm r;
  99         int aret;
 100
 101         krb5_get_default_realm(context->context, &r);
 102         aret = asprintf(&d.exp2, "%s@%s", expression, r);
 103         free(r);
 104         if (aret == -1 || d.exp2 == NULL) {
 105             return ENOMEM;
 106         }
 107     }
 108     d.princs = NULL;
 109     d.count = 0;
 110     ret = hdb_foreach(context->context, context->db, HDB_F_ADMIN_DATA, foreach, &d);
 111     if (!context->keep_open)
 112         context->db->hdb_close(context->context, context->db);
 113     if(ret == 0)
 114         ret = add_princ(&d, NULL);
 115     if(ret == 0){
 116         *princs = d.princs;
 117         *count = d.count - 1;
 118     }else
 119         kadm5_free_name_list(context, d.princs, &d.count);
 120     free(d.exp2);
 121     return _kadm5_error_code(ret);
 122 }