crypto/dist/heimdal/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("$Heimdal: get_princs_s.c 16378 2005-12-12 12:40:12Z lha $"
  37         "$NetBSD$");
  38
  39 struct foreach_data {
  40     const char *exp;
  41     char *exp2;
  42     char **princs;
  43     int count;
  44 };
  45
  46 static krb5_error_code
  47 add_princ(struct foreach_data *d, char *princ)
  48 {
  49     char **tmp;
  50     tmp = realloc(d->princs, (d->count + 1) * sizeof(*tmp));
  51     if(tmp == NULL)
  52         return ENOMEM;
  53     d->princs = tmp;
  54     d->princs[d->count++] = princ;
  55     return 0;
  56 }
  57
  58 static krb5_error_code
  59 foreach(krb5_context context, HDB *db, hdb_entry_ex *ent, void *data)
  60 {
  61     struct foreach_data *d = data;
  62     char *princ;
  63     krb5_error_code ret;
  64     ret = krb5_unparse_name(context, ent->entry.principal, &princ);
  65     if(ret)
  66         return ret;
  67     if(d->exp){
  68         if(fnmatch(d->exp, princ, 0) == 0 || fnmatch(d->exp2, princ, 0) == 0)
  69             ret = add_princ(d, princ);
  70         else
  71             free(princ);
  72     }else{
  73         ret = add_princ(d, princ);
  74     }
  75     if(ret)
  76         free(princ);
  77     return ret;
  78 }
  79
  80 kadm5_ret_t
  81 kadm5_s_get_principals(void *server_handle,
  82                        const char *expression,
  83                        char ***princs,
  84                        int *count)
  85 {
  86     struct foreach_data d;
  87     kadm5_server_context *context = server_handle;
  88     kadm5_ret_t ret;
  89     ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
  90     if(ret) {
  91         krb5_warn(context->context, ret, "opening database");
  92         return ret;
  93     }
  94     d.exp = expression;
  95     {
  96         krb5_realm r;
  97         krb5_get_default_realm(context->context, &r);
  98         asprintf(&d.exp2, "%s@%s", expression, r);
  99         free(r);
 100     }
 101     d.princs = NULL;
 102     d.count = 0;
 103     ret = hdb_foreach(context->context, context->db, 0, foreach, &d);
 104     context->db->hdb_close(context->context, context->db);
 105     if(ret == 0)
 106         ret = add_princ(&d, NULL);
 107     if(ret == 0){
 108         *princs = d.princs;
 109         *count = d.count - 1;
 110     }else
 111         kadm5_free_name_list(context, d.princs, &d.count);
 112     free(d.exp2);
 113     return _kadm5_error_code(ret);
 114 }