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cc47c8fa7b0f4567bb9dd7e692c32a558a166d5c
heimdal/lib/gssapi/krb5/external.c
Roland C. Dowdeswell cc47c8fa7b Turn on -Wextra -Wno-sign-compare -Wno-unused-paramter and fix issues. 
We turn on a few extra warnings and fix the fallout that occurs
when building with --enable-developer.  Note that we get different
warnings on different machines and so this will be a work in
progress.  So far, we have built on NetBSD/amd64 5.99.64 (which
uses gcc 4.5.3) and Ubuntu 10.04.3 LTS (which uses gcc 4.4.3).

Notably, we fixed

	1.  a lot of missing structure initialisers,

	2.  unchecked return values for functions that glibc
	    marks as __attribute__((warn-unused-result)),

	3.  made minor modifications to slc and asn1_compile
	    which can generate code which generates warnings,
	    and

	4.  a few stragglers here and there.

We turned off the extended warnings for many programs in appl/ as
they are nearing the end of their useful lifetime, e.g.  rsh, rcp,
popper, ftp and telnet.

Interestingly, glibc's strncmp() macro needed to be worked around
whereas the function calls did not.

We have not yet tried this on 32 bit platforms, so there will be
a few more warnings when we do.
2012-02-20 19:45:41 +00:00

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/*
* Copyright (c) 1997 - 2000 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 "gsskrb5_locl.h"
#include <gssapi_mech.h>
/*
* The implementation must reserve static storage for a
* gss_OID_desc object containing the value
* {10, (void *)"\x2a\x86\x48\x86\xf7\x12"
* "\x01\x02\x01\x01"},
* corresponding to an object-identifier value of
* {iso(1) member-body(2) United States(840) mit(113554)
* infosys(1) gssapi(2) generic(1) user_name(1)}. The constant
* GSS_C_NT_USER_NAME should be initialized to point
* to that gss_OID_desc.
*/
gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_user_name_oid_desc =
{10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12" "\x01\x02\x01\x01")};
/*
* The implementation must reserve static storage for a
* gss_OID_desc object containing the value
* {10, (void *)"\x2a\x86\x48\x86\xf7\x12"
* "\x01\x02\x01\x02"},
* corresponding to an object-identifier value of
* {iso(1) member-body(2) United States(840) mit(113554)
* infosys(1) gssapi(2) generic(1) machine_uid_name(2)}.
* The constant GSS_C_NT_MACHINE_UID_NAME should be
* initialized to point to that gss_OID_desc.
*/
gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_machine_uid_name_oid_desc =
{10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12" "\x01\x02\x01\x02")};
/*
* The implementation must reserve static storage for a
* gss_OID_desc object containing the value
* {10, (void *)"\x2a\x86\x48\x86\xf7\x12"
* "\x01\x02\x01\x03"},
* corresponding to an object-identifier value of
* {iso(1) member-body(2) United States(840) mit(113554)
* infosys(1) gssapi(2) generic(1) string_uid_name(3)}.
* The constant GSS_C_NT_STRING_UID_NAME should be
* initialized to point to that gss_OID_desc.
*/
gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_string_uid_name_oid_desc =
{10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12" "\x01\x02\x01\x03")};
/*
* The implementation must reserve static storage for a
* gss_OID_desc object containing the value
* {6, (void *)"\x2b\x06\x01\x05\x06\x02"},
* corresponding to an object-identifier value of
* {iso(1) org(3) dod(6) internet(1) security(5)
* nametypes(6) gss-host-based-services(2)). The constant
* GSS_C_NT_HOSTBASED_SERVICE_X should be initialized to point
* to that gss_OID_desc. This is a deprecated OID value, and
* implementations wishing to support hostbased-service names
* should instead use the GSS_C_NT_HOSTBASED_SERVICE OID,
* defined below, to identify such names;
* GSS_C_NT_HOSTBASED_SERVICE_X should be accepted a synonym
* for GSS_C_NT_HOSTBASED_SERVICE when presented as an input
* parameter, but should not be emitted by GSS-API
* implementations
*/
gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_hostbased_service_x_oid_desc =
{6, rk_UNCONST("\x2b\x06\x01\x05\x06\x02")};
/*
* The implementation must reserve static storage for a
* gss_OID_desc object containing the value
* {10, (void *)"\x2a\x86\x48\x86\xf7\x12"
* "\x01\x02\x01\x04"}, corresponding to an
* object-identifier value of {iso(1) member-body(2)
* Unites States(840) mit(113554) infosys(1) gssapi(2)
* generic(1) service_name(4)}. The constant
* GSS_C_NT_HOSTBASED_SERVICE should be initialized
* to point to that gss_OID_desc.
*/
gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_hostbased_service_oid_desc =
{10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12" "\x01\x02\x01\x04")};
/*
* The implementation must reserve static storage for a
* gss_OID_desc object containing the value
* {6, (void *)"\x2b\x06\01\x05\x06\x03"},
* corresponding to an object identifier value of
* {1(iso), 3(org), 6(dod), 1(internet), 5(security),
* 6(nametypes), 3(gss-anonymous-name)}. The constant
* and GSS_C_NT_ANONYMOUS should be initialized to point
* to that gss_OID_desc.
*/
gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_anonymous_oid_desc =
{6, rk_UNCONST("\x2b\x06\01\x05\x06\x03")};
/*
* The implementation must reserve static storage for a
* gss_OID_desc object containing the value
* {6, (void *)"\x2b\x06\x01\x05\x06\x04"},
* corresponding to an object-identifier value of
* {1(iso), 3(org), 6(dod), 1(internet), 5(security),
* 6(nametypes), 4(gss-api-exported-name)}. The constant
* GSS_C_NT_EXPORT_NAME should be initialized to point
* to that gss_OID_desc.
*/
gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_export_name_oid_desc =
{6, rk_UNCONST("\x2b\x06\x01\x05\x06\x04") };
/*
* This name form shall be represented by the Object Identifier {iso(1)
* member-body(2) United States(840) mit(113554) infosys(1) gssapi(2)
* krb5(2) krb5_name(1)}. The recommended symbolic name for this type
* is "GSS_KRB5_NT_PRINCIPAL_NAME".
*/
gss_OID_desc GSSAPI_LIB_VARIABLE __gss_krb5_nt_principal_name_oid_desc =
{10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12\x01\x02\x02\x01") };
/*
* draft-ietf-cat-iakerb-09, IAKERB:
* The mechanism ID for IAKERB proxy GSS-API Kerberos, in accordance
* with the mechanism proposed by SPNEGO [7] for negotiating protocol
* variations, is: {iso(1) org(3) dod(6) internet(1) security(5)
* mechanisms(5) iakerb(10) iakerbProxyProtocol(1)}. The proposed
* mechanism ID for IAKERB minimum messages GSS-API Kerberos, in
* accordance with the mechanism proposed by SPNEGO for negotiating
* protocol variations, is: {iso(1) org(3) dod(6) internet(1)
* security(5) mechanisms(5) iakerb(10)
* iakerbMinimumMessagesProtocol(2)}.
*/
gss_OID_desc GSSAPI_LIB_VARIABLE __gss_iakerb_proxy_mechanism_oid_desc =
{7, rk_UNCONST("\x2b\x06\x01\x05\x05\x0a\x01")};
gss_OID_desc GSSAPI_LIB_VARIABLE __gss_iakerb_min_msg_mechanism_oid_desc =
{7, rk_UNCONST("\x2b\x06\x01\x05\x05\x0a\x02") };
/*
* Context for krb5 calls.
*/
static gss_mo_desc krb5_mo[] = {
{
GSS_C_MA_SASL_MECH_NAME,
GSS_MO_MA,
"SASL mech name",
rk_UNCONST("GS2-KRB5"),
_gss_mo_get_ctx_as_string,
NULL
},
{
GSS_C_MA_MECH_NAME,
GSS_MO_MA,
"Mechanism name",
rk_UNCONST("KRB5"),
_gss_mo_get_ctx_as_string,
NULL
},
{
GSS_C_MA_MECH_DESCRIPTION,
GSS_MO_MA,
"Mechanism description",
rk_UNCONST("Heimdal Kerberos 5 mech"),
_gss_mo_get_ctx_as_string,
NULL
},
{
GSS_C_MA_MECH_CONCRETE,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_ITOK_FRAMED,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_AUTH_INIT,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_AUTH_TARG,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_AUTH_INIT_ANON,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_DELEG_CRED,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_INTEG_PROT,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_CONF_PROT,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_MIC,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_WRAP,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_PROT_READY,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_REPLAY_DET,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_OOS_DET,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_CBINDINGS,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_PFS,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
},
{
GSS_C_MA_CTX_TRANS,
GSS_MO_MA,
NULL,
NULL,
NULL,
NULL
}
};
/*
*
*/
static gssapi_mech_interface_desc krb5_mech = {
GMI_VERSION,
"kerberos 5",
{9, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12\x01\x02\x02") },
0,
_gsskrb5_acquire_cred,
_gsskrb5_release_cred,
_gsskrb5_init_sec_context,
_gsskrb5_accept_sec_context,
_gsskrb5_process_context_token,
_gsskrb5_delete_sec_context,
_gsskrb5_context_time,
_gsskrb5_get_mic,
_gsskrb5_verify_mic,
_gsskrb5_wrap,
_gsskrb5_unwrap,
_gsskrb5_display_status,
_gsskrb5_indicate_mechs,
_gsskrb5_compare_name,
_gsskrb5_display_name,
_gsskrb5_import_name,
_gsskrb5_export_name,
_gsskrb5_release_name,
_gsskrb5_inquire_cred,
_gsskrb5_inquire_context,
_gsskrb5_wrap_size_limit,
_gsskrb5_add_cred,
_gsskrb5_inquire_cred_by_mech,
_gsskrb5_export_sec_context,
_gsskrb5_import_sec_context,
_gsskrb5_inquire_names_for_mech,
_gsskrb5_inquire_mechs_for_name,
_gsskrb5_canonicalize_name,
_gsskrb5_duplicate_name,
_gsskrb5_inquire_sec_context_by_oid,
_gsskrb5_inquire_cred_by_oid,
_gsskrb5_set_sec_context_option,
_gsskrb5_set_cred_option,
_gsskrb5_pseudo_random,
_gk_wrap_iov,
_gk_unwrap_iov,
_gk_wrap_iov_length,
_gsskrb5_store_cred,
_gsskrb5_export_cred,
_gsskrb5_import_cred,
_gsskrb5_acquire_cred_ext,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
krb5_mo,
sizeof(krb5_mo) / sizeof(krb5_mo[0]),
_gsskrb5_localname,
_gsskrb5_authorize_localname,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL
};
gssapi_mech_interface
__gss_krb5_initialize(void)
{
return &krb5_mech;
}
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