/src/openssl/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) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        return NULL;
    }
    if (sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_INVALID_ARGUMENT);
        return NULL;
    }
    return sk_X509_ATTRIBUTE_value(x, loc);
}

X509_ATTRIBUTE *X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc)
{
    if (x == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        return NULL;
    }
    if (sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_INVALID_ARGUMENT);
        return NULL;
    }
    return sk_X509_ATTRIBUTE_delete(x, loc);
}

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 || attr == 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) {
            ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
            goto err;
        }
    } else {
        sk = *x;
    }

    if ((new_attr = X509_ATTRIBUTE_dup(attr)) == NULL)
        goto err;
    if (!sk_X509_ATTRIBUTE_push(sk, new_attr)) {
        ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
        goto err;
    }
    if (*x == NULL)
        *x = sk;
    return sk;
 err:
    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 == NULL)
        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 == NULL)
        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 == NULL)
        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 = X509at_get_attr_by_OBJ(x, obj, lastpos);
    X509_ATTRIBUTE *at;

    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 = sk_X509_ATTRIBUTE_num(x);
    STACK_OF(X509_ATTRIBUTE) *sk = NULL;

    for (i = 0; i < n; ++i) {
        if (X509at_add1_attr(&sk, sk_X509_ATTRIBUTE_value(x, i)) == 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 = OBJ_nid2obj(nid);
    X509_ATTRIBUTE *ret;

    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_ASN1_LIB);
            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 = OBJ_txt2obj(atrname, 0);
    X509_ATTRIBUTE *nattr;

    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) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        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 == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        return 0;
    }
    if ((attrtype & MBSTRING_FLAG) != 0) {
        stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype,
                                      OBJ_obj2nid(attr->object));
        if (stmp == NULL) {
            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
            || !ASN1_STRING_set(stmp, data, len)) {
            ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
            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) {
        ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
        goto err;
    }
    if (len == -1 && (attrtype & MBSTRING_FLAG) == 0) {
        if (!ASN1_TYPE_set1(ttmp, attrtype, data)) {
            ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
            goto err;
        }
    } else {
        ASN1_TYPE_set(ttmp, atype, stmp);
        stmp = NULL;
    }
    if (!sk_ASN1_TYPE_push(attr->set, ttmp)) {
        ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
        goto err;
    }
    return 1;
 err:
    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) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        return NULL;
    }
    return attr->object;
}

void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx,
                               int atrtype, void *data)
{
    ASN1_TYPE *ttmp = X509_ATTRIBUTE_get0_type(attr, idx);

    if (ttmp == NULL)
        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) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        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	0	{
29	0	const ASN1_OBJECT *obj = OBJ_nid2obj(nid);
30
31	0	if (obj == NULL)
32	0	return -2;
33	0	return X509at_get_attr_by_OBJ(x, obj, lastpos);
34	0	}
35
36		int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk,
37		const ASN1_OBJECT *obj, int lastpos)
38	0	{
39	0	int n;
40	0	X509_ATTRIBUTE *ex;
41
42	0	if (sk == NULL)
43	0	return -1;
44	0	lastpos++;
45	0	if (lastpos < 0)
46	0	lastpos = 0;
47	0	n = sk_X509_ATTRIBUTE_num(sk);
48	0	for (; lastpos < n; lastpos++) {
49	0	ex = sk_X509_ATTRIBUTE_value(sk, lastpos);
50	0	if (OBJ_cmp(ex->object, obj) == 0)
51	0	return lastpos;
52	0	}
53	0	return -1;
54	0	}
55
56		X509_ATTRIBUTE X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) x, int loc)
57	0	{
58	0	if (x == NULL) {
59	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
60	0	return NULL;
61	0	}
62	0	if (sk_X509_ATTRIBUTE_num(x) <= loc \|\| loc < 0) {
63	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_INVALID_ARGUMENT);
64	0	return NULL;
65	0	}
66	0	return sk_X509_ATTRIBUTE_value(x, loc);
67	0	}
68
69		X509_ATTRIBUTE X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) x, int loc)
70	0	{
71	0	if (x == NULL) {
72	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
73	0	return NULL;
74	0	}
75	0	if (sk_X509_ATTRIBUTE_num(x) <= loc \|\| loc < 0) {
76	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_INVALID_ARGUMENT);
77	0	return NULL;
78	0	}
79	0	return sk_X509_ATTRIBUTE_delete(x, loc);
80	0	}
81
82		STACK_OF(X509_ATTRIBUTE) X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) *x,
83		X509_ATTRIBUTE *attr)
84	0	{
85	0	X509_ATTRIBUTE *new_attr = NULL;
86	0	STACK_OF(X509_ATTRIBUTE) *sk = NULL;
87
88	0	if (x == NULL \|\| attr == NULL) {
89	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
90	0	return NULL;
91	0	}
92	0	if (x != NULL && X509at_get_attr_by_OBJ(x, attr->object, -1) != -1) {
93	0	ERR_raise(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE);
94	0	return NULL;
95	0	}
96
97	0	if (*x == NULL) {
98	0	if ((sk = sk_X509_ATTRIBUTE_new_null()) == NULL) {
99	0	ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
100	0	goto err;
101	0	}
102	0	} else {
103	0	sk = *x;
104	0	}
105
106	0	if ((new_attr = X509_ATTRIBUTE_dup(attr)) == NULL)
107	0	goto err;
108	0	if (!sk_X509_ATTRIBUTE_push(sk, new_attr)) {
109	0	ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
110	0	goto err;
111	0	}
112	0	if (*x == NULL)
113	0	*x = sk;
114	0	return sk;
115	0	err:
116	0	X509_ATTRIBUTE_free(new_attr);
117	0	if (*x == NULL)
118	0	sk_X509_ATTRIBUTE_free(sk);
119	0	return NULL;
120	0	}
121
122		STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE)
123		*x, const ASN1_OBJECT obj,
124		int type,
125		const unsigned char *bytes,
126		int len)
127	0	{
128	0	X509_ATTRIBUTE *attr;
129	0	STACK_OF(X509_ATTRIBUTE) *ret;
130
131	0	attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len);
132	0	if (attr == NULL)
133	0	return 0;
134	0	ret = X509at_add1_attr(x, attr);
135	0	X509_ATTRIBUTE_free(attr);
136	0	return ret;
137	0	}
138
139		STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE)
140		**x, int nid, int type,
141		const unsigned char *bytes,
142		int len)
143	0	{
144	0	X509_ATTRIBUTE *attr;
145	0	STACK_OF(X509_ATTRIBUTE) *ret;
146
147	0	attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len);
148	0	if (attr == NULL)
149	0	return 0;
150	0	ret = X509at_add1_attr(x, attr);
151	0	X509_ATTRIBUTE_free(attr);
152	0	return ret;
153	0	}
154
155		STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE)
156		*x, const char attrname,
157		int type,
158		const unsigned char *bytes,
159		int len)
160	0	{
161	0	X509_ATTRIBUTE *attr;
162	0	STACK_OF(X509_ATTRIBUTE) *ret;
163
164	0	attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
165	0	if (attr == NULL)
166	0	return 0;
167	0	ret = X509at_add1_attr(x, attr);
168	0	X509_ATTRIBUTE_free(attr);
169	0	return ret;
170	0	}
171
172		void X509at_get0_data_by_OBJ(const STACK_OF(X509_ATTRIBUTE) x,
173		const ASN1_OBJECT *obj, int lastpos, int type)
174	0	{
175	0	int i = X509at_get_attr_by_OBJ(x, obj, lastpos);
176	0	X509_ATTRIBUTE *at;
177
178	0	if (i == -1)
179	0	return NULL;
180	0	if (lastpos <= -2 && X509at_get_attr_by_OBJ(x, obj, i) != -1)
181	0	return NULL;
182	0	at = X509at_get_attr(x, i);
183	0	if (lastpos <= -3 && X509_ATTRIBUTE_count(at) != 1)
184	0	return NULL;
185	0	return X509_ATTRIBUTE_get0_data(at, 0, type, NULL);
186	0	}
187
188		STACK_OF(X509_ATTRIBUTE) ossl_x509at_dup(const STACK_OF(X509_ATTRIBUTE) x)
189	0	{
190	0	int i, n = sk_X509_ATTRIBUTE_num(x);
191	0	STACK_OF(X509_ATTRIBUTE) *sk = NULL;
192
193	0	for (i = 0; i < n; ++i) {
194	0	if (X509at_add1_attr(&sk, sk_X509_ATTRIBUTE_value(x, i)) == NULL) {
195	0	sk_X509_ATTRIBUTE_pop_free(sk, X509_ATTRIBUTE_free);
196	0	return NULL;
197	0	}
198	0	}
199	0	return sk;
200	0	}
201
202		X509_ATTRIBUTE X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE *attr, int nid,
203		int atrtype, const void *data,
204		int len)
205	0	{
206	0	ASN1_OBJECT *obj = OBJ_nid2obj(nid);
207	0	X509_ATTRIBUTE *ret;
208
209	0	if (obj == NULL) {
210	0	ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_NID);
211	0	return NULL;
212	0	}
213	0	ret = X509_ATTRIBUTE_create_by_OBJ(attr, obj, atrtype, data, len);
214	0	if (ret == NULL)
215	0	ASN1_OBJECT_free(obj);
216	0	return ret;
217	0	}
218
219		X509_ATTRIBUTE X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE *attr,
220		const ASN1_OBJECT *obj,
221		int atrtype, const void *data,
222		int len)
223	0	{
224	0	X509_ATTRIBUTE *ret;
225
226	0	if (attr == NULL \|\| *attr == NULL) {
227	0	if ((ret = X509_ATTRIBUTE_new()) == NULL) {
228	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
229	0	return NULL;
230	0	}
231	0	} else {
232	0	ret = *attr;
233	0	}
234
235	0	if (!X509_ATTRIBUTE_set1_object(ret, obj))
236	0	goto err;
237	0	if (!X509_ATTRIBUTE_set1_data(ret, atrtype, data, len))
238	0	goto err;
239
240	0	if (attr != NULL && *attr == NULL)
241	0	*attr = ret;
242	0	return ret;
243	0	err:
244	0	if (attr == NULL \|\| ret != *attr)
245	0	X509_ATTRIBUTE_free(ret);
246	0	return NULL;
247	0	}
248
249		X509_ATTRIBUTE X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE *attr,
250		const char *atrname, int type,
251		const unsigned char *bytes,
252		int len)
253	0	{
254	0	ASN1_OBJECT *obj = OBJ_txt2obj(atrname, 0);
255	0	X509_ATTRIBUTE *nattr;
256
257	0	if (obj == NULL) {
258	0	ERR_raise_data(ERR_LIB_X509, X509_R_INVALID_FIELD_NAME,
259	0	"name=%s", atrname);
260	0	return NULL;
261	0	}
262	0	nattr = X509_ATTRIBUTE_create_by_OBJ(attr, obj, type, bytes, len);
263	0	ASN1_OBJECT_free(obj);
264	0	return nattr;
265	0	}
266
267		int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE attr, const ASN1_OBJECT obj)
268	0	{
269	0	if (attr == NULL \|\| obj == NULL) {
270	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
271	0	return 0;
272	0	}
273	0	ASN1_OBJECT_free(attr->object);
274	0	attr->object = OBJ_dup(obj);
275	0	return attr->object != NULL;
276	0	}
277
278		int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype,
279		const void *data, int len)
280	0	{
281	0	ASN1_TYPE *ttmp = NULL;
282	0	ASN1_STRING *stmp = NULL;
283	0	int atype = 0;
284
285	0	if (attr == NULL) {
286	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
287	0	return 0;
288	0	}
289	0	if ((attrtype & MBSTRING_FLAG) != 0) {
290	0	stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype,
291	0	OBJ_obj2nid(attr->object));
292	0	if (stmp == NULL) {
293	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
294	0	return 0;
295	0	}
296	0	atype = stmp->type;
297	0	} else if (len != -1) {
298	0	if ((stmp = ASN1_STRING_type_new(attrtype)) == NULL
299	0	\|\| !ASN1_STRING_set(stmp, data, len)) {
300	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
301	0	goto err;
302	0	}
303	0	atype = attrtype;
304	0	}
305		/*
306		* This is a bit naughty because the attribute should really have at
307		* least one value but some types use and zero length SET and require
308		* this.
309		*/
310	0	if (attrtype == 0) {
311	0	ASN1_STRING_free(stmp);
312	0	return 1;
313	0	}
314	0	if ((ttmp = ASN1_TYPE_new()) == NULL) {
315	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
316	0	goto err;
317	0	}
318	0	if (len == -1 && (attrtype & MBSTRING_FLAG) == 0) {
319	0	if (!ASN1_TYPE_set1(ttmp, attrtype, data)) {
320	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
321	0	goto err;
322	0	}
323	0	} else {
324	0	ASN1_TYPE_set(ttmp, atype, stmp);
325	0	stmp = NULL;
326	0	}
327	0	if (!sk_ASN1_TYPE_push(attr->set, ttmp)) {
328	0	ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
329	0	goto err;
330	0	}
331	0	return 1;
332	0	err:
333	0	ASN1_TYPE_free(ttmp);
334	0	ASN1_STRING_free(stmp);
335	0	return 0;
336	0	}
337
338		int X509_ATTRIBUTE_count(const X509_ATTRIBUTE *attr)
339	0	{
340	0	if (attr == NULL)
341	0	return 0;
342	0	return sk_ASN1_TYPE_num(attr->set);
343	0	}
344
345		ASN1_OBJECT X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE attr)
346	0	{
347	0	if (attr == NULL) {
348	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
349	0	return NULL;
350	0	}
351	0	return attr->object;
352	0	}
353
354		void X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE attr, int idx,
355		int atrtype, void *data)
356	0	{
357	0	ASN1_TYPE *ttmp = X509_ATTRIBUTE_get0_type(attr, idx);
358
359	0	if (ttmp == NULL)
360	0	return NULL;
361	0	if (atrtype == V_ASN1_BOOLEAN
362	0	\|\| atrtype == V_ASN1_NULL
363	0	\|\| atrtype != ASN1_TYPE_get(ttmp)) {
364	0	ERR_raise(ERR_LIB_X509, X509_R_WRONG_TYPE);
365	0	return NULL;
366	0	}
367	0	return ttmp->value.ptr;
368	0	}
369
370		ASN1_TYPE X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE attr, int idx)
371	0	{
372	0	if (attr == NULL) {
373	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
374	0	return NULL;
375	0	}
376	0	return sk_ASN1_TYPE_value(attr->set, idx);
377	0	}