1 /* 2 * Copyright (c) 1997 - 1999 Kungliga Tekniska H�gskolan 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 <krb5_locl.h> 35 36 RCSID("$Id: aname_to_localname.c,v 1.3 1999/12/02 17:05:07 joda Exp $"); 37 38 krb5_error_code 39 krb5_aname_to_localname (krb5_context context, 40 krb5_const_principal aname, 41 size_t lnsize, 42 char *lname) 43 { 44 krb5_error_code ret; 45 krb5_realm *lrealms, *r; 46 int foo = 1; 47 size_t len; 48 char *res; 49 50 ret = krb5_get_default_realms (context, &lrealms); 51 if (ret) 52 return ret; 53 54 for (r = lrealms; *r != NULL; ++r) { 55 foo = strcmp (*r, aname->realm); 56 if (foo == 0) 57 break; 58 } 59 krb5_free_host_realm (context, lrealms); 60 if (foo != 0) 61 return KRB5_NO_LOCALNAME; 62 63 if (aname->name.name_string.len == 1) 64 res = aname->name.name_string.val[0]; 65 else if (aname->name.name_string.len == 2 66 && strcmp (aname->name.name_string.val[1], "root") == 0) 67 res = "root"; 68 else 69 return KRB5_NO_LOCALNAME; 70 71 len = strlen (res); 72 if (len >= lnsize) 73 return ERANGE; 74 strcpy (lname, res); 75 return 0; 76 } 77