aboutsummaryrefslogtreecommitdiffstats
path: root/src/lib/gssapi/mechglue/g_dup_name.c
blob: cc824fdf99b87b3e3a613d6196be6dd393cfe2d0 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
/*
 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/* #pragma ident	"@(#)g_dup_name.c	1.14	04/02/23 SMI" */

/*
 *  routine gss_duplicate_name
 *
 * This routine does not rely on mechanism implementation of this
 * name, but instead uses mechanism specific gss_import_name routine.
 */

#include <mglueP.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <string.h>
#include <errno.h>

static OM_uint32
val_dup_name_args(
	OM_uint32 *minor_status,
	const gss_name_t src_name,
	gss_name_t *dest_name)
{

	/* Initialize outputs. */

	if (minor_status != NULL)
		*minor_status = 0;

	if (dest_name != NULL)
		*dest_name = GSS_C_NO_NAME;

	/* Validate arguments. */

	if (minor_status == NULL)
		return (GSS_S_CALL_INACCESSIBLE_WRITE);

	/* if output_name is NULL, simply return */
	if (dest_name == NULL)
		return (GSS_S_CALL_INACCESSIBLE_WRITE);

	if (src_name == GSS_C_NO_NAME)
		return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME);

	return (GSS_S_COMPLETE);
}


OM_uint32 KRB5_CALLCONV
gss_duplicate_name(minor_status,
		src_name,
		dest_name)
OM_uint32 *minor_status;
const gss_name_t src_name;
gss_name_t *dest_name;
{
		gss_union_name_t src_union, dest_union;
		OM_uint32 major_status = GSS_S_FAILURE;

	major_status = val_dup_name_args(minor_status, src_name, dest_name);
	if (major_status != GSS_S_COMPLETE)
		return (major_status);

	src_union = (gss_union_name_t)src_name;

	/*
	 * First create the union name struct that will hold the external
	 * name and the name type.
	 */
	dest_union = (gss_union_name_t)malloc(sizeof (gss_union_name_desc));
	if (!dest_union)
		goto allocation_failure;

	dest_union->loopback = 0;
	dest_union->mech_type = 0;
	dest_union->mech_name = 0;
	dest_union->name_type = 0;
	dest_union->external_name = 0;

	/* Now copy the external representaion */
	if (gssint_create_copy_buffer(src_union->external_name,
				&dest_union->external_name, 0))
		goto allocation_failure;

	if (src_union->name_type != GSS_C_NULL_OID) {
		major_status = generic_gss_copy_oid(minor_status,
						src_union->name_type,
						&dest_union->name_type);
		if (major_status != GSS_S_COMPLETE) {
		    map_errcode(minor_status);
		    goto allocation_failure;
		}
	}

	/*
	 * See if source name is mechanim specific, if so then need to import it
	 */
	if (src_union->mech_type) {
		major_status = generic_gss_copy_oid(minor_status,
							src_union->mech_type,
							&dest_union->mech_type);
		if (major_status != GSS_S_COMPLETE) {
		    map_errcode(minor_status);
		    goto allocation_failure;
		}

		major_status = gssint_import_internal_name(minor_status,
							src_union->mech_type,
							src_union,
							&dest_union->mech_name);
		if (major_status != GSS_S_COMPLETE)
			goto allocation_failure;
	}


	dest_union->loopback = dest_union;
	*dest_name = (gss_name_t)dest_union;
	return (GSS_S_COMPLETE);

allocation_failure:
	if (dest_union) {
		if (dest_union->external_name) {
			if (dest_union->external_name->value)
				free(dest_union->external_name->value);
			free(dest_union->external_name);
		}
		if (dest_union->name_type)
			(void) generic_gss_release_oid(minor_status,
							&dest_union->name_type);
		if (dest_union->mech_name)
			(void) gssint_release_internal_name(minor_status,
						dest_union->mech_type,
						&dest_union->mech_name);
		if (dest_union->mech_type)
			(void) generic_gss_release_oid(minor_status,
							&dest_union->mech_type);
		free(dest_union);
	}
	return (major_status);
} /*	gss_duplicate_name	*/