lib/gssapi/ntlm/import_name.c

   1 /*
   2  * Copyright (c) 1997 - 2003 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 "ntlm.h"
  35
  36 OM_uint32 GSSAPI_CALLCONV
  37 _gss_ntlm_import_name
  38            (OM_uint32 * minor_status,
  39             const gss_buffer_t input_name_buffer,
  40             const gss_OID input_name_type,
  41             gss_name_t * output_name
  42            )
  43 {
  44     char *name, *p, *p2;
  45     int is_hostnamed;
  46     int is_username;
  47     ntlm_name n;
  48
  49     *minor_status = 0;
  50
  51     if (output_name == NULL)
  52         return GSS_S_CALL_INACCESSIBLE_WRITE;
  53
  54     *output_name = GSS_C_NO_NAME;
  55
  56     is_hostnamed = gss_oid_equal(input_name_type, GSS_C_NT_HOSTBASED_SERVICE);
  57     is_username = gss_oid_equal(input_name_type, GSS_C_NT_USER_NAME);
  58
  59     if (!is_hostnamed && !is_username)
  60         return GSS_S_BAD_NAMETYPE;
  61
  62     name = malloc(input_name_buffer->length + 1);
  63     if (name == NULL) {
  64         *minor_status = ENOMEM;
  65         return GSS_S_FAILURE;
  66     }
  67     memcpy(name, input_name_buffer->value, input_name_buffer->length);
  68     name[input_name_buffer->length] = '\0';
  69
  70     /* find "domain" part of the name and uppercase it */
  71     p = strchr(name, '@');
  72     if (p == NULL) {
  73         free(name);
  74         return GSS_S_BAD_NAME;
  75     }
  76     p[0] = '\0';
  77     p++;
  78     p2 = strchr(p, '.');
  79     if (p2 && p2[1] != '\0') {
  80         if (is_hostnamed) {
  81             p = p2 + 1;
  82             p2 = strchr(p, '.');
  83         }
  84         if (p2)
  85             *p2 = '\0';
  86     }
  87     strupr(p);
  88
  89     n = calloc(1, sizeof(*n));
  90     if (n == NULL) {
  91         free(name);
  92         *minor_status = ENOMEM;
  93         return GSS_S_FAILURE;
  94     }
  95
  96     n->user = strdup(name);
  97     n->domain = strdup(p);
  98
  99     free(name);
 100
 101     if (n->user == NULL || n->domain == NULL) {
 102         free(n->user);
 103         free(n->domain);
 104         free(n);
 105         *minor_status = ENOMEM;
 106         return GSS_S_FAILURE;
 107     }
 108
 109     *output_name = (gss_name_t)n;
 110
 111     return GSS_S_COMPLETE;
 112 }