f055cc84f7
krb5_sname_to_principal. from "Jacques A. Vidrine" <n@nectar.com> git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@10298 ec53bebd-3082-4978-b11e-865c3cabbd6b
98 lines
3.0 KiB
C
98 lines
3.0 KiB
C
/*
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* Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "krb5_locl.h"
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RCSID("$Id$");
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krb5_error_code
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krb5_sock_to_principal (krb5_context context,
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int sock,
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const char *sname,
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int32_t type,
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krb5_principal *ret_princ)
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{
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krb5_error_code ret;
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krb5_address address;
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struct sockaddr_storage __ss;
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struct sockaddr *sa = (struct sockaddr *)&__ss;
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socklen_t len = sizeof(__ss);
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struct hostent *hostent;
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int family;
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char *hname = NULL;
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if (getsockname (sock, sa, &len) < 0) {
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ret = errno;
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krb5_set_error_string (context, "getsockname: %s", strerror(ret));
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return ret;
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}
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family = sa->sa_family;
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ret = krb5_sockaddr2address (context, sa, &address);
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if (ret)
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return ret;
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hostent = roken_gethostbyaddr (address.address.data,
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address.address.length,
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family);
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if (hostent == NULL) {
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krb5_set_error_string (context, "gethostbyaddr: %s",
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hstrerror(h_errno));
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return krb5_h_errno_to_heim_errno(h_errno);
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}
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hname = hostent->h_name;
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if (strchr(hname, '.') == NULL) {
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char **a;
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for (a = hostent->h_aliases; a != NULL && *a != NULL; ++a)
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if (strchr(*a, '.') != NULL) {
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hname = *a;
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break;
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}
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}
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hname = strdup(hname);
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if (hname == NULL) {
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krb5_set_error_string (context, "malloc: out of memory");
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return ENOMEM;
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}
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ret = krb5_sname_to_principal (context,
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hname,
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sname,
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type,
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ret_princ);
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free(hname);
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return ret;
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}
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