/src/openssl30/crypto/x509/x509_att.c

Source (jump to first uncovered line)
/*
 * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/safestack.h>
#include <openssl/asn1.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include "crypto/x509.h"
#include "x509_local.h"

int X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x)
{
    return sk_X509_ATTRIBUTE_num(x);
}

int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid,
                           int lastpos)
{
    const ASN1_OBJECT *obj = OBJ_nid2obj(nid);

    if (obj == NULL)
        return -2;
    return X509at_get_attr_by_OBJ(x, obj, lastpos);
}

int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk,
                           const ASN1_OBJECT *obj, int lastpos)
{
    int n;
    X509_ATTRIBUTE *ex;

    if (sk == NULL)
        return -1;
    lastpos++;
    if (lastpos < 0)
        lastpos = 0;
    n = sk_X509_ATTRIBUTE_num(sk);
    for (; lastpos < n; lastpos++) {
        ex = sk_X509_ATTRIBUTE_value(sk, lastpos);
        if (OBJ_cmp(ex->object, obj) == 0)
            return lastpos;
    }
    return -1;
}

X509_ATTRIBUTE *X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc)
{
    if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
        return NULL;

    return sk_X509_ATTRIBUTE_value(x, loc);
}

X509_ATTRIBUTE *X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc)
{
    X509_ATTRIBUTE *ret;

    if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
        return NULL;
    ret = sk_X509_ATTRIBUTE_delete(x, loc);
    return ret;
}

STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x,
                                           X509_ATTRIBUTE *attr)
{
    X509_ATTRIBUTE *new_attr = NULL;
    STACK_OF(X509_ATTRIBUTE) *sk = NULL;

    if (x == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        return NULL;
    }

    if (*x != NULL && X509at_get_attr_by_OBJ(*x, attr->object, -1) != -1) {
        ERR_raise(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE);
        return NULL;
    }

    if (*x == NULL) {
        if ((sk = sk_X509_ATTRIBUTE_new_null()) == NULL)
            goto err;
    } else {
        sk = *x;
    }

    if ((new_attr = X509_ATTRIBUTE_dup(attr)) == NULL)
        goto err2;
    if (!sk_X509_ATTRIBUTE_push(sk, new_attr))
        goto err;
    if (*x == NULL)
        *x = sk;
    return sk;
 err:
    ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
 err2:
    X509_ATTRIBUTE_free(new_attr);
    if (*x == NULL)
        sk_X509_ATTRIBUTE_free(sk);
    return NULL;
}

STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE)
                                                  **x, const ASN1_OBJECT *obj,
                                                  int type,
                                                  const unsigned char *bytes,
                                                  int len)
{
    X509_ATTRIBUTE *attr;
    STACK_OF(X509_ATTRIBUTE) *ret;
    attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len);
    if (!attr)
        return 0;
    ret = X509at_add1_attr(x, attr);
    X509_ATTRIBUTE_free(attr);
    return ret;
}

STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE)
                                                  **x, int nid, int type,
                                                  const unsigned char *bytes,
                                                  int len)
{
    X509_ATTRIBUTE *attr;
    STACK_OF(X509_ATTRIBUTE) *ret;
    attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len);
    if (!attr)
        return 0;
    ret = X509at_add1_attr(x, attr);
    X509_ATTRIBUTE_free(attr);
    return ret;
}

STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE)
                                                  **x, const char *attrname,
                                                  int type,
                                                  const unsigned char *bytes,
                                                  int len)
{
    X509_ATTRIBUTE *attr;
    STACK_OF(X509_ATTRIBUTE) *ret;
    attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
    if (!attr)
        return 0;
    ret = X509at_add1_attr(x, attr);
    X509_ATTRIBUTE_free(attr);
    return ret;
}

void *X509at_get0_data_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *x,
                              const ASN1_OBJECT *obj, int lastpos, int type)
{
    int i;
    X509_ATTRIBUTE *at;
    i = X509at_get_attr_by_OBJ(x, obj, lastpos);
    if (i == -1)
        return NULL;
    if ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1))
        return NULL;
    at = X509at_get_attr(x, i);
    if (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1))
        return NULL;
    return X509_ATTRIBUTE_get0_data(at, 0, type, NULL);
}

STACK_OF(X509_ATTRIBUTE) *ossl_x509at_dup(const STACK_OF(X509_ATTRIBUTE) *x)
{
    int i, n;
    STACK_OF(X509_ATTRIBUTE) *sk = NULL;

    n = sk_X509_ATTRIBUTE_num(x);
    for (i = 0; i < n; ++i) {
        X509_ATTRIBUTE *attr = sk_X509_ATTRIBUTE_value(x, i);

        if (X509at_add1_attr(&sk, attr) == NULL) {
            sk_X509_ATTRIBUTE_pop_free(sk, X509_ATTRIBUTE_free);
            return NULL;
        }
    }
    return sk;
}

X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid,
                                             int atrtype, const void *data,
                                             int len)
{
    ASN1_OBJECT *obj;
    X509_ATTRIBUTE *ret;

    obj = OBJ_nid2obj(nid);
    if (obj == NULL) {
        ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_NID);
        return NULL;
    }
    ret = X509_ATTRIBUTE_create_by_OBJ(attr, obj, atrtype, data, len);
    if (ret == NULL)
        ASN1_OBJECT_free(obj);
    return ret;
}

X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr,
                                             const ASN1_OBJECT *obj,
                                             int atrtype, const void *data,
                                             int len)
{
    X509_ATTRIBUTE *ret;

    if ((attr == NULL) || (*attr == NULL)) {
        if ((ret = X509_ATTRIBUTE_new()) == NULL) {
            ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
            return NULL;
        }
    } else
        ret = *attr;

    if (!X509_ATTRIBUTE_set1_object(ret, obj))
        goto err;
    if (!X509_ATTRIBUTE_set1_data(ret, atrtype, data, len))
        goto err;

    if ((attr != NULL) && (*attr == NULL))
        *attr = ret;
    return ret;
 err:
    if ((attr == NULL) || (ret != *attr))
        X509_ATTRIBUTE_free(ret);
    return NULL;
}

X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr,
                                             const char *atrname, int type,
                                             const unsigned char *bytes,
                                             int len)
{
    ASN1_OBJECT *obj;
    X509_ATTRIBUTE *nattr;

    obj = OBJ_txt2obj(atrname, 0);
    if (obj == NULL) {
        ERR_raise_data(ERR_LIB_X509, X509_R_INVALID_FIELD_NAME,
                       "name=%s", atrname);
        return NULL;
    }
    nattr = X509_ATTRIBUTE_create_by_OBJ(attr, obj, type, bytes, len);
    ASN1_OBJECT_free(obj);
    return nattr;
}

int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj)
{
    if ((attr == NULL) || (obj == NULL))
        return 0;
    ASN1_OBJECT_free(attr->object);
    attr->object = OBJ_dup(obj);
    return attr->object != NULL;
}

int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype,
                             const void *data, int len)
{
    ASN1_TYPE *ttmp = NULL;
    ASN1_STRING *stmp = NULL;
    int atype = 0;
    if (!attr)
        return 0;
    if (attrtype & MBSTRING_FLAG) {
        stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype,
                                      OBJ_obj2nid(attr->object));
        if (!stmp) {
            ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
            return 0;
        }
        atype = stmp->type;
    } else if (len != -1) {
        if ((stmp = ASN1_STRING_type_new(attrtype)) == NULL)
            goto err;
        if (!ASN1_STRING_set(stmp, data, len))
            goto err;
        atype = attrtype;
    }
    /*
     * This is a bit naughty because the attribute should really have at
     * least one value but some types use and zero length SET and require
     * this.
     */
    if (attrtype == 0) {
        ASN1_STRING_free(stmp);
        return 1;
    }
    if ((ttmp = ASN1_TYPE_new()) == NULL)
        goto err;
    if ((len == -1) && !(attrtype & MBSTRING_FLAG)) {
        if (!ASN1_TYPE_set1(ttmp, attrtype, data))
            goto err;
    } else {
        ASN1_TYPE_set(ttmp, atype, stmp);
        stmp = NULL;
    }
    if (!sk_ASN1_TYPE_push(attr->set, ttmp))
        goto err;
    return 1;
 err:
    ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
    ASN1_TYPE_free(ttmp);
    ASN1_STRING_free(stmp);
    return 0;
}

int X509_ATTRIBUTE_count(const X509_ATTRIBUTE *attr)
{
    if (attr == NULL)
        return 0;
    return sk_ASN1_TYPE_num(attr->set);
}

ASN1_OBJECT *X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr)
{
    if (attr == NULL)
        return NULL;
    return attr->object;
}

void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx,
                               int atrtype, void *data)
{
    ASN1_TYPE *ttmp;
    ttmp = X509_ATTRIBUTE_get0_type(attr, idx);
    if (!ttmp)
        return NULL;
    if (atrtype == V_ASN1_BOOLEAN
            || atrtype == V_ASN1_NULL
            || atrtype != ASN1_TYPE_get(ttmp)) {
        ERR_raise(ERR_LIB_X509, X509_R_WRONG_TYPE);
        return NULL;
    }
    return ttmp->value.ptr;
}

ASN1_TYPE *X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE *attr, int idx)
{
    if (attr == NULL)
        return NULL;
    return sk_ASN1_TYPE_value(attr->set, idx);
}

Coverage Report

Created: 2023-09-25 06:45

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
5		* this file except in compliance with the License. You can obtain a copy
6		* in the file LICENSE in the source distribution or at
7		* https://www.openssl.org/source/license.html
8		*/
9
10		#include <stdio.h>
11		#include "internal/cryptlib.h"
12		#include <openssl/safestack.h>
13		#include <openssl/asn1.h>
14		#include <openssl/objects.h>
15		#include <openssl/evp.h>
16		#include <openssl/x509.h>
17		#include <openssl/x509v3.h>
18		#include "crypto/x509.h"
19		#include "x509_local.h"
20
21		int X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x)
22	0	{
23	0	return sk_X509_ATTRIBUTE_num(x);
24	0	}
25
26		int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid,
27		int lastpos)
28	36	{
29	36	const ASN1_OBJECT *obj = OBJ_nid2obj(nid);
30
31	36	if (obj == NULL)
32	0	return -2;
33	36	return X509at_get_attr_by_OBJ(x, obj, lastpos);
34	36	}
35
36		int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk,
37		const ASN1_OBJECT *obj, int lastpos)
38	36	{
39	36	int n;
40	36	X509_ATTRIBUTE *ex;
41
42	36	if (sk == NULL)
43	0	return -1;
44	36	lastpos++;
45	36	if (lastpos < 0)
46	0	lastpos = 0;
47	36	n = sk_X509_ATTRIBUTE_num(sk);
48	132	for (; lastpos < n; lastpos++) {
49	103	ex = sk_X509_ATTRIBUTE_value(sk, lastpos);
50	103	if (OBJ_cmp(ex->object, obj) == 0)
51	7	return lastpos;
52	103	}
53	29	return -1;
54	36	}
55
56		X509_ATTRIBUTE X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) x, int loc)
57		{
58		if (x == NULL \|\| sk_X509_ATTRIBUTE_num(x) <= loc \|\| loc < 0)
59		return NULL;
60
61		return sk_X509_ATTRIBUTE_value(x, loc);
62		}
63
64		X509_ATTRIBUTE X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) x, int loc)
65	0	{
66	0	X509_ATTRIBUTE *ret;
67
68	0	if (x == NULL \|\| sk_X509_ATTRIBUTE_num(x) <= loc \|\| loc < 0)
69	0	return NULL;
70	0	ret = sk_X509_ATTRIBUTE_delete(x, loc);
71	0	return ret;
72	0	}
73
74		STACK_OF(X509_ATTRIBUTE) X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) *x,
75		X509_ATTRIBUTE *attr)
76	0	{
77	0	X509_ATTRIBUTE *new_attr = NULL;
78	0	STACK_OF(X509_ATTRIBUTE) *sk = NULL;
79
80	0	if (x == NULL) {
81	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
82	0	return NULL;
83	0	}
84
85	0	if (x != NULL && X509at_get_attr_by_OBJ(x, attr->object, -1) != -1) {
86	0	ERR_raise(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE);
87	0	return NULL;
88	0	}
89
90	0	if (*x == NULL) {
91	0	if ((sk = sk_X509_ATTRIBUTE_new_null()) == NULL)
92	0	goto err;
93	0	} else {
94	0	sk = *x;
95	0	}
96
97	0	if ((new_attr = X509_ATTRIBUTE_dup(attr)) == NULL)
98	0	goto err2;
99	0	if (!sk_X509_ATTRIBUTE_push(sk, new_attr))
100	0	goto err;
101	0	if (*x == NULL)
102	0	*x = sk;
103	0	return sk;
104	0	err:
105	0	ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
106	0	err2:
107	0	X509_ATTRIBUTE_free(new_attr);
108	0	if (*x == NULL)
109	0	sk_X509_ATTRIBUTE_free(sk);
110	0	return NULL;
111	0	}
112
113		STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE)
114		*x, const ASN1_OBJECT obj,
115		int type,
116		const unsigned char *bytes,
117		int len)
118	0	{
119	0	X509_ATTRIBUTE *attr;
120	0	STACK_OF(X509_ATTRIBUTE) *ret;
121	0	attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len);
122	0	if (!attr)
123	0	return 0;
124	0	ret = X509at_add1_attr(x, attr);
125	0	X509_ATTRIBUTE_free(attr);
126	0	return ret;
127	0	}
128
129		STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE)
130		**x, int nid, int type,
131		const unsigned char *bytes,
132		int len)
133	0	{
134	0	X509_ATTRIBUTE *attr;
135	0	STACK_OF(X509_ATTRIBUTE) *ret;
136	0	attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len);
137	0	if (!attr)
138	0	return 0;
139	0	ret = X509at_add1_attr(x, attr);
140	0	X509_ATTRIBUTE_free(attr);
141	0	return ret;
142	0	}
143
144		STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE)
145		*x, const char attrname,
146		int type,
147		const unsigned char *bytes,
148		int len)
149	0	{
150	0	X509_ATTRIBUTE *attr;
151	0	STACK_OF(X509_ATTRIBUTE) *ret;
152	0	attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
153	0	if (!attr)
154	0	return 0;
155	0	ret = X509at_add1_attr(x, attr);
156	0	X509_ATTRIBUTE_free(attr);
157	0	return ret;
158	0	}
159
160		void X509at_get0_data_by_OBJ(const STACK_OF(X509_ATTRIBUTE) x,
161		const ASN1_OBJECT *obj, int lastpos, int type)
162	0	{
163	0	int i;
164	0	X509_ATTRIBUTE *at;
165	0	i = X509at_get_attr_by_OBJ(x, obj, lastpos);
166	0	if (i == -1)
167	0	return NULL;
168	0	if ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1))
169	0	return NULL;
170	0	at = X509at_get_attr(x, i);
171	0	if (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1))
172	0	return NULL;
173	0	return X509_ATTRIBUTE_get0_data(at, 0, type, NULL);
174	0	}
175
176		STACK_OF(X509_ATTRIBUTE) ossl_x509at_dup(const STACK_OF(X509_ATTRIBUTE) x)
177	0	{
178	0	int i, n;
179	0	STACK_OF(X509_ATTRIBUTE) *sk = NULL;
180
181	0	n = sk_X509_ATTRIBUTE_num(x);
182	0	for (i = 0; i < n; ++i) {
183	0	X509_ATTRIBUTE *attr = sk_X509_ATTRIBUTE_value(x, i);
184
185	0	if (X509at_add1_attr(&sk, attr) == NULL) {
186	0	sk_X509_ATTRIBUTE_pop_free(sk, X509_ATTRIBUTE_free);
187	0	return NULL;
188	0	}
189	0	}
190	0	return sk;
191	0	}
192
193		X509_ATTRIBUTE X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE *attr, int nid,
194		int atrtype, const void *data,
195		int len)
196	0	{
197	0	ASN1_OBJECT *obj;
198	0	X509_ATTRIBUTE *ret;
199
200	0	obj = OBJ_nid2obj(nid);
201	0	if (obj == NULL) {
202	0	ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_NID);
203	0	return NULL;
204	0	}
205	0	ret = X509_ATTRIBUTE_create_by_OBJ(attr, obj, atrtype, data, len);
206	0	if (ret == NULL)
207	0	ASN1_OBJECT_free(obj);
208	0	return ret;
209	0	}
210
211		X509_ATTRIBUTE X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE *attr,
212		const ASN1_OBJECT *obj,
213		int atrtype, const void *data,
214		int len)
215	0	{
216	0	X509_ATTRIBUTE *ret;
217
218	0	if ((attr == NULL) \|\| (*attr == NULL)) {
219	0	if ((ret = X509_ATTRIBUTE_new()) == NULL) {
220	0	ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
221	0	return NULL;
222	0	}
223	0	} else
224	0	ret = *attr;
225
226	0	if (!X509_ATTRIBUTE_set1_object(ret, obj))
227	0	goto err;
228	0	if (!X509_ATTRIBUTE_set1_data(ret, atrtype, data, len))
229	0	goto err;
230
231	0	if ((attr != NULL) && (*attr == NULL))
232	0	*attr = ret;
233	0	return ret;
234	0	err:
235	0	if ((attr == NULL) \|\| (ret != *attr))
236	0	X509_ATTRIBUTE_free(ret);
237	0	return NULL;
238	0	}
239
240		X509_ATTRIBUTE X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE *attr,
241		const char *atrname, int type,
242		const unsigned char *bytes,
243		int len)
244	0	{
245	0	ASN1_OBJECT *obj;
246	0	X509_ATTRIBUTE *nattr;
247
248	0	obj = OBJ_txt2obj(atrname, 0);
249	0	if (obj == NULL) {
250	0	ERR_raise_data(ERR_LIB_X509, X509_R_INVALID_FIELD_NAME,
251	0	"name=%s", atrname);
252	0	return NULL;
253	0	}
254	0	nattr = X509_ATTRIBUTE_create_by_OBJ(attr, obj, type, bytes, len);
255	0	ASN1_OBJECT_free(obj);
256	0	return nattr;
257	0	}
258
259		int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE attr, const ASN1_OBJECT obj)
260	0	{
261	0	if ((attr == NULL) \|\| (obj == NULL))
262	0	return 0;
263	0	ASN1_OBJECT_free(attr->object);
264	0	attr->object = OBJ_dup(obj);
265	0	return attr->object != NULL;
266	0	}
267
268		int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype,
269		const void *data, int len)
270	0	{
271	0	ASN1_TYPE *ttmp = NULL;
272	0	ASN1_STRING *stmp = NULL;
273	0	int atype = 0;
274	0	if (!attr)
275	0	return 0;
276	0	if (attrtype & MBSTRING_FLAG) {
277	0	stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype,
278	0	OBJ_obj2nid(attr->object));
279	0	if (!stmp) {
280	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
281	0	return 0;
282	0	}
283	0	atype = stmp->type;
284	0	} else if (len != -1) {
285	0	if ((stmp = ASN1_STRING_type_new(attrtype)) == NULL)
286	0	goto err;
287	0	if (!ASN1_STRING_set(stmp, data, len))
288	0	goto err;
289	0	atype = attrtype;
290	0	}
291		/*
292		* This is a bit naughty because the attribute should really have at
293		* least one value but some types use and zero length SET and require
294		* this.
295		*/
296	0	if (attrtype == 0) {
297	0	ASN1_STRING_free(stmp);
298	0	return 1;
299	0	}
300	0	if ((ttmp = ASN1_TYPE_new()) == NULL)
301	0	goto err;
302	0	if ((len == -1) && !(attrtype & MBSTRING_FLAG)) {
303	0	if (!ASN1_TYPE_set1(ttmp, attrtype, data))
304	0	goto err;
305	0	} else {
306	0	ASN1_TYPE_set(ttmp, atype, stmp);
307	0	stmp = NULL;
308	0	}
309	0	if (!sk_ASN1_TYPE_push(attr->set, ttmp))
310	0	goto err;
311	0	return 1;
312	0	err:
313	0	ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
314	0	ASN1_TYPE_free(ttmp);
315	0	ASN1_STRING_free(stmp);
316	0	return 0;
317	0	}
318
319		int X509_ATTRIBUTE_count(const X509_ATTRIBUTE *attr)
320	0	{
321	0	if (attr == NULL)
322	0	return 0;
323	0	return sk_ASN1_TYPE_num(attr->set);
324	0	}
325
326		ASN1_OBJECT X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE attr)
327	0	{
328	0	if (attr == NULL)
329	0	return NULL;
330	0	return attr->object;
331	0	}
332
333		void X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE attr, int idx,
334		int atrtype, void *data)
335	0	{
336	0	ASN1_TYPE *ttmp;
337	0	ttmp = X509_ATTRIBUTE_get0_type(attr, idx);
338	0	if (!ttmp)
339	0	return NULL;
340	0	if (atrtype == V_ASN1_BOOLEAN
341	0	\|\| atrtype == V_ASN1_NULL
342	0	\|\| atrtype != ASN1_TYPE_get(ttmp)) {
343	0	ERR_raise(ERR_LIB_X509, X509_R_WRONG_TYPE);
344	0	return NULL;
345	0	}
346	0	return ttmp->value.ptr;
347	0	}
348
349		ASN1_TYPE X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE attr, int idx)
350	7	{
351	7	if (attr == NULL)
352	0	return NULL;
353	7	return sk_ASN1_TYPE_value(attr->set, idx);
354	7	}