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/*
* Copyright (c) 1997 - 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: sock_principal.c,v 1.13 2001/05/14 06:14:51 assar Exp $");
krb5_error_code
krb5_sock_to_principal (krb5_context context,
int sock,
const char *sname,
int32_t type,
krb5_principal *ret_princ)
{
krb5_error_code ret;
krb5_address address;
struct sockaddr_storage __ss;
struct sockaddr *sa = (struct sockaddr *)&__ss;
socklen_t len = sizeof(__ss);
struct hostent *hostent;
int family;
char *hname = NULL;
if (getsockname (sock, sa, &len) < 0) {
ret = errno;
krb5_set_error_string (context, "getsockname: %s", strerror(ret));
return ret;
}
family = sa->sa_family;
ret = krb5_sockaddr2address (context, sa, &address);
if (ret)
return ret;
hostent = roken_gethostbyaddr (address.address.data,
address.address.length,
family);
if (hostent == NULL) {
krb5_set_error_string (context, "gethostbyaddr: %s",
hstrerror(h_errno));
return krb5_h_errno_to_heim_errno(h_errno);
}
hname = hostent->h_name;
if (strchr(hname, '.') == NULL) {
char **a;
for (a = hostent->h_aliases; a != NULL && *a != NULL; ++a)
if (strchr(*a, '.') != NULL) {
hname = *a;
break;
}
}
return krb5_sname_to_principal (context,
hname,
sname,
type,
ret_princ);
}
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