xref: /freebsd/kerberos5/lib/libgssapi_krb5/pname_to_uid.c (revision 8f55a568f69c5b2fadaa020a452c2043a7dcf65f)
18f55a568SDoug Rabson /*-
28f55a568SDoug Rabson  * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
38f55a568SDoug Rabson  * Authors: Doug Rabson <dfr@rabson.org>
48f55a568SDoug Rabson  * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
58f55a568SDoug Rabson  *
68f55a568SDoug Rabson  * Redistribution and use in source and binary forms, with or without
78f55a568SDoug Rabson  * modification, are permitted provided that the following conditions
88f55a568SDoug Rabson  * are met:
98f55a568SDoug Rabson  * 1. Redistributions of source code must retain the above copyright
108f55a568SDoug Rabson  *    notice, this list of conditions and the following disclaimer.
118f55a568SDoug Rabson  * 2. Redistributions in binary form must reproduce the above copyright
128f55a568SDoug Rabson  *    notice, this list of conditions and the following disclaimer in the
138f55a568SDoug Rabson  *    documentation and/or other materials provided with the distribution.
148f55a568SDoug Rabson  *
158f55a568SDoug Rabson  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
168f55a568SDoug Rabson  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
178f55a568SDoug Rabson  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
188f55a568SDoug Rabson  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
198f55a568SDoug Rabson  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
208f55a568SDoug Rabson  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
218f55a568SDoug Rabson  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
228f55a568SDoug Rabson  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
238f55a568SDoug Rabson  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
248f55a568SDoug Rabson  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
258f55a568SDoug Rabson  * SUCH DAMAGE.
268f55a568SDoug Rabson  */
278f55a568SDoug Rabson /* $FreeBSD$ */
288f55a568SDoug Rabson 
298f55a568SDoug Rabson #include <pwd.h>
308f55a568SDoug Rabson 
318f55a568SDoug Rabson #include "krb5/gsskrb5_locl.h"
328f55a568SDoug Rabson 
338f55a568SDoug Rabson OM_uint32
348f55a568SDoug Rabson _gsskrb5_pname_to_uid(OM_uint32 *minor_status, const gss_name_t pname,
358f55a568SDoug Rabson     const gss_OID mech, uid_t *uidp)
368f55a568SDoug Rabson {
378f55a568SDoug Rabson 	krb5_context context;
388f55a568SDoug Rabson 	krb5_const_principal name = (krb5_const_principal) pname;
398f55a568SDoug Rabson 	krb5_error_code kret;
408f55a568SDoug Rabson 	char lname[MAXLOGNAME + 1], buf[128];
418f55a568SDoug Rabson 	struct passwd pwd, *pw;
428f55a568SDoug Rabson 
438f55a568SDoug Rabson 	GSSAPI_KRB5_INIT (&context);
448f55a568SDoug Rabson 
458f55a568SDoug Rabson 	kret = krb5_aname_to_localname(context, name, sizeof(lname), lname);
468f55a568SDoug Rabson 	if (kret) {
478f55a568SDoug Rabson 		*minor_status = kret;
488f55a568SDoug Rabson 		return (GSS_S_FAILURE);
498f55a568SDoug Rabson 	}
508f55a568SDoug Rabson 
518f55a568SDoug Rabson 	*minor_status = 0;
528f55a568SDoug Rabson 	getpwnam_r(lname, &pwd, buf, sizeof(buf), &pw);
538f55a568SDoug Rabson 	if (pw) {
548f55a568SDoug Rabson 		*uidp = pw->pw_uid;
558f55a568SDoug Rabson 		return (GSS_S_COMPLETE);
568f55a568SDoug Rabson 	} else {
578f55a568SDoug Rabson 		return (GSS_S_FAILURE);
588f55a568SDoug Rabson 	}
598f55a568SDoug Rabson }
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