diff options
Diffstat (limited to 'crypto/heimdal/lib/krb5/expand_hostname.c')
| -rw-r--r-- | crypto/heimdal/lib/krb5/expand_hostname.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/crypto/heimdal/lib/krb5/expand_hostname.c b/crypto/heimdal/lib/krb5/expand_hostname.c deleted file mode 100644 index 848c8ab5f72e..000000000000 --- a/crypto/heimdal/lib/krb5/expand_hostname.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * Copyright (c) 1999 - 2001 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 3. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include "krb5_locl.h" - -RCSID("$Id: expand_hostname.c,v 1.10 2001/05/14 06:14:46 assar Exp $"); - -static krb5_error_code -copy_hostname(krb5_context context, - const char *orig_hostname, - char **new_hostname) -{ - *new_hostname = strdup (orig_hostname); - if (*new_hostname == NULL) { - krb5_set_error_string(context, "malloc: out of memory"); - return ENOMEM; - } - strlwr (*new_hostname); - return 0; -} - -/* - * Try to make `orig_hostname' into a more canonical one in the newly - * allocated space returned in `new_hostname'. - */ - -krb5_error_code -krb5_expand_hostname (krb5_context context, - const char *orig_hostname, - char **new_hostname) -{ - struct addrinfo *ai, *a, hints; - int error; - - memset (&hints, 0, sizeof(hints)); - hints.ai_flags = AI_CANONNAME; - - error = getaddrinfo (orig_hostname, NULL, &hints, &ai); - if (error) - return copy_hostname (context, orig_hostname, new_hostname); - for (a = ai; a != NULL; a = a->ai_next) { - if (a->ai_canonname != NULL) { - *new_hostname = strdup (a->ai_canonname); - freeaddrinfo (ai); - if (*new_hostname == NULL) { - krb5_set_error_string(context, "malloc: out of memory"); - return ENOMEM; - } else { - return 0; - } - } - } - freeaddrinfo (ai); - return copy_hostname (context, orig_hostname, new_hostname); -} - -/* - * handle the case of the hostname being unresolvable and thus identical - */ - -static krb5_error_code -vanilla_hostname (krb5_context context, - const char *orig_hostname, - char **new_hostname, - char ***realms) -{ - krb5_error_code ret; - - ret = copy_hostname (context, orig_hostname, new_hostname); - if (ret) - return ret; - strlwr (*new_hostname); - - ret = krb5_get_host_realm (context, *new_hostname, realms); - if (ret) { - free (*new_hostname); - return ret; - } - return 0; -} - -/* - * expand `hostname' to a name we believe to be a hostname in newly - * allocated space in `host' and return realms in `realms'. - */ - -krb5_error_code -krb5_expand_hostname_realms (krb5_context context, - const char *orig_hostname, - char **new_hostname, - char ***realms) -{ - struct addrinfo *ai, *a, hints; - int error; - krb5_error_code ret = 0; - - memset (&hints, 0, sizeof(hints)); - hints.ai_flags = AI_CANONNAME; - - error = getaddrinfo (orig_hostname, NULL, &hints, &ai); - if (error) - return vanilla_hostname (context, orig_hostname, new_hostname, - realms); - - for (a = ai; a != NULL; a = a->ai_next) { - if (a->ai_canonname != NULL) { - ret = copy_hostname (context, a->ai_canonname, new_hostname); - if (ret) { - freeaddrinfo (ai); - return ret; - } - strlwr (*new_hostname); - ret = krb5_get_host_realm (context, *new_hostname, realms); - if (ret == 0) { - freeaddrinfo (ai); - return 0; - } - free (*new_hostname); - } - } - return vanilla_hostname (context, orig_hostname, new_hostname, realms); -} |