bf932fdd72
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@11685 ec53bebd-3082-4978-b11e-865c3cabbd6b
124 lines
4.0 KiB
Groff
124 lines
4.0 KiB
Groff
.\" Copyright (c) 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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.\" $Id$
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.\"
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.Dd June 27, 2001
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.Dt KRB5_VERIFY_USER 3
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.Os HEIMDAL
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.Sh NAME
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.Nm krb5_verify_user ,
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.Nm krb5_verify_user_lrealm
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.Nd Heimdal password verifying functions
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.Sh LIBRARY
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Kerberos 5 Library (libkrb5, -lkrb5)
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.Sh SYNOPSIS
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.Fd #include <krb5.h>
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.Ft krb5_error_code
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.Fn "krb5_verify_user" "krb5_context context" " krb5_principal principal" "krb5_ccache ccache" "const char *password" "krb5_boolean secure" "const char *service"
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.Ft krb5_error_code
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.Fn "krb5_verify_user_lrealm" "krb5_context context" "krb5_principal principal" "krb5_ccache ccache" "const char *password" "krb5_boolean secure" "const char *service"
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.Sh DESCRIPTION
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The
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.Nm krb5_verify_user
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function verifies the password supplied by a user.
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The principal whose
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password will be verified is specified in
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.Fa principal .
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New tickets will be obtained as a side-effect and stored in
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.Fa ccache
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(if NULL, the default ccache is used).
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If the password is not supplied in
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.Fa password
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(and is given as
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.Dv NULL )
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the user will be prompted for it.
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If
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.Fa secure
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the ticket will be verified against the locally stored service key
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.Fa service
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(by default
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.Ql host
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if given as
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.Dv NULL
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).
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.Pp
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The
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.Nm krb5_verify_user_lrealm
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function does the same, except that it ignores the realm in
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.Fa principal
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and tries all the local realms (see
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.Xr krb5.conf 5 ) .
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After a successful return, the principal is set to the authenticated
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realm. If the call fails, the principal will not be meaningful, and
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should only be freed with
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.Xr krb5_free_principal 3 .
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.Sh EXAMPLE
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Here is a example program that verifies a password. it uses the
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.Ql host/`hostname`
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service principal in
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.Pa krb5.keytab .
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.Bd -literal
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#include <krb5.h>
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int
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main(int argc, char **argv)
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{
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char *user;
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krb5_error_code error;
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krb5_principal princ;
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krb5_context context;
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if (argc != 2)
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errx(1, "usage: verify_passwd <principal-name>");
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user = argv[1];
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if (krb5_init_context(&context) < 0)
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errx(1, "krb5_init_context");
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if ((error = krb5_parse_name(context, user, &princ)) != 0)
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krb5_err(context, 1, error, "krb5_parse_name");
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error = krb5_verify_user(context, princ, NULL, NULL, TRUE, NULL);
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if (error)
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krb5_err(context, 1, error, "krb5_verify_user");
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return 0;
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}
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.Ed
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.Sh SEE ALSO
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.Xr krb5_err 3 ,
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.Xr krb5_free_principal 3 ,
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.Xr krb5_init_context 3 ,
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.Xr krb5_kt_default 3 ,
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.Xr krb5.conf 5
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