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

Source
/*
 * Copyright 1995-2024 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) *ossl_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) {
        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(STACK_OF(X509_ATTRIBUTE) **x,
    X509_ATTRIBUTE *attr)
{
    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;
    }

    return ossl_x509at_add1_attr(x, attr);
}

STACK_OF(X509_ATTRIBUTE) *ossl_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 = ossl_x509at_add1_attr(x, attr);
    X509_ATTRIBUTE_free(attr);
    return ret;
}

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)
{
    if (x == NULL || obj == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        return NULL;
    }
    if (*x != NULL && X509at_get_attr_by_OBJ(*x, obj, -1) != -1) {
        ERR_raise(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE);
        return NULL;
    }

    return ossl_x509at_add1_attr_by_OBJ(x, obj, type, bytes, len);
}

STACK_OF(X509_ATTRIBUTE) *ossl_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 = ossl_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)
{
    if (x == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        return NULL;
    }
    if (*x != NULL && X509at_get_attr_by_NID(*x, nid, -1) != -1) {
        ERR_raise(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE);
        return NULL;
    }

    return ossl_x509at_add1_attr_by_NID(x, nid, type, bytes, len);
}

STACK_OF(X509_ATTRIBUTE) *ossl_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 = ossl_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: 2025-12-31 06:58

Line	Count	Source
1		/*
2		* Copyright 1995-2024 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	139k	{
23	139k	return sk_X509_ATTRIBUTE_num(x);
24	139k	}
25
26		int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid,
27		int lastpos)
28	297	{
29	297	const ASN1_OBJECT *obj = OBJ_nid2obj(nid);
30
31	297	if (obj == NULL)
32	0	return -2;
33	297	return X509at_get_attr_by_OBJ(x, obj, lastpos);
34	297	}
35
36		int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk,
37		const ASN1_OBJECT *obj, int lastpos)
38	297	{
39	297	int n;
40	297	X509_ATTRIBUTE *ex;
41
42	297	if (sk == NULL)
43	0	return -1;
44	297	lastpos++;
45	297	if (lastpos < 0)
46	0	lastpos = 0;
47	297	n = sk_X509_ATTRIBUTE_num(sk);
48	1.05k	for (; lastpos < n; lastpos++) {
49	835	ex = sk_X509_ATTRIBUTE_value(sk, lastpos);
50	835	if (OBJ_cmp(ex->object, obj) == 0)
51	81	return lastpos;
52	835	}
53	216	return -1;
54	297	}
55
56		X509_ATTRIBUTE X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) x, int loc)
57	0	{
58	0	if (x == NULL \|\| sk_X509_ATTRIBUTE_num(x) <= loc \|\| loc < 0)
59	0	return NULL;
60
61	0	return sk_X509_ATTRIBUTE_value(x, loc);
62	0	}
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) ossl_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) {
86	0	if ((sk = sk_X509_ATTRIBUTE_new_null()) == NULL)
87	0	goto err;
88	0	} else {
89	0	sk = *x;
90	0	}
91
92	0	if ((new_attr = X509_ATTRIBUTE_dup(attr)) == NULL)
93	0	goto err2;
94	0	if (!sk_X509_ATTRIBUTE_push(sk, new_attr))
95	0	goto err;
96	0	if (*x == NULL)
97	0	*x = sk;
98	0	return sk;
99	0	err:
100	0	ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
101	0	err2:
102	0	X509_ATTRIBUTE_free(new_attr);
103	0	if (*x == NULL)
104	0	sk_X509_ATTRIBUTE_free(sk);
105	0	return NULL;
106	0	}
107
108		STACK_OF(X509_ATTRIBUTE) X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) *x,
109		X509_ATTRIBUTE *attr)
110	0	{
111	0	if (x == NULL \|\| attr == NULL) {
112	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
113	0	return NULL;
114	0	}
115	0	if (x != NULL && X509at_get_attr_by_OBJ(x, attr->object, -1) != -1) {
116	0	ERR_raise(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE);
117	0	return NULL;
118	0	}
119
120	0	return ossl_x509at_add1_attr(x, attr);
121	0	}
122
123		STACK_OF(X509_ATTRIBUTE) ossl_x509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE) *x,
124		const ASN1_OBJECT *obj,
125		int type,
126		const unsigned char *bytes,
127		int len)
128	0	{
129	0	X509_ATTRIBUTE *attr;
130	0	STACK_OF(X509_ATTRIBUTE) *ret;
131
132	0	attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len);
133	0	if (attr == NULL)
134	0	return 0;
135	0	ret = ossl_x509at_add1_attr(x, attr);
136	0	X509_ATTRIBUTE_free(attr);
137	0	return ret;
138	0	}
139
140		STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE)
141		**x,
142		const ASN1_OBJECT *obj,
143		int type,
144		const unsigned char *bytes,
145		int len)
146	0	{
147	0	if (x == NULL \|\| obj == NULL) {
148	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
149	0	return NULL;
150	0	}
151	0	if (x != NULL && X509at_get_attr_by_OBJ(x, obj, -1) != -1) {
152	0	ERR_raise(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE);
153	0	return NULL;
154	0	}
155
156	0	return ossl_x509at_add1_attr_by_OBJ(x, obj, type, bytes, len);
157	0	}
158
159		STACK_OF(X509_ATTRIBUTE) ossl_x509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE) *x,
160		int nid, int type,
161		const unsigned char *bytes,
162		int len)
163	0	{
164	0	X509_ATTRIBUTE *attr;
165	0	STACK_OF(X509_ATTRIBUTE) *ret;
166
167	0	attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len);
168	0	if (attr == NULL)
169	0	return 0;
170	0	ret = ossl_x509at_add1_attr(x, attr);
171	0	X509_ATTRIBUTE_free(attr);
172	0	return ret;
173	0	}
174
175		STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE)
176		**x,
177		int nid, int type,
178		const unsigned char *bytes,
179		int len)
180	0	{
181	0	if (x == NULL) {
182	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
183	0	return NULL;
184	0	}
185	0	if (x != NULL && X509at_get_attr_by_NID(x, nid, -1) != -1) {
186	0	ERR_raise(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE);
187	0	return NULL;
188	0	}
189
190	0	return ossl_x509at_add1_attr_by_NID(x, nid, type, bytes, len);
191	0	}
192
193		STACK_OF(X509_ATTRIBUTE) ossl_x509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE) *x,
194		const char *attrname,
195		int type,
196		const unsigned char *bytes,
197		int len)
198	0	{
199	0	X509_ATTRIBUTE *attr;
200	0	STACK_OF(X509_ATTRIBUTE) *ret;
201
202	0	attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
203	0	if (attr == NULL)
204	0	return 0;
205	0	ret = ossl_x509at_add1_attr(x, attr);
206	0	X509_ATTRIBUTE_free(attr);
207	0	return ret;
208	0	}
209
210		STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE)
211		**x,
212		const char *attrname,
213		int type,
214		const unsigned char *bytes,
215		int len)
216	0	{
217	0	X509_ATTRIBUTE *attr;
218	0	STACK_OF(X509_ATTRIBUTE) *ret;
219	0	attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
220	0	if (!attr)
221	0	return 0;
222	0	ret = X509at_add1_attr(x, attr);
223	0	X509_ATTRIBUTE_free(attr);
224	0	return ret;
225	0	}
226
227		void X509at_get0_data_by_OBJ(const STACK_OF(X509_ATTRIBUTE) x,
228		const ASN1_OBJECT *obj, int lastpos, int type)
229	0	{
230	0	int i;
231	0	X509_ATTRIBUTE *at;
232	0	i = X509at_get_attr_by_OBJ(x, obj, lastpos);
233	0	if (i == -1)
234	0	return NULL;
235	0	if ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1))
236	0	return NULL;
237	0	at = X509at_get_attr(x, i);
238	0	if (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1))
239	0	return NULL;
240	0	return X509_ATTRIBUTE_get0_data(at, 0, type, NULL);
241	0	}
242
243		STACK_OF(X509_ATTRIBUTE) ossl_x509at_dup(const STACK_OF(X509_ATTRIBUTE) x)
244	0	{
245	0	int i, n;
246	0	STACK_OF(X509_ATTRIBUTE) *sk = NULL;
247
248	0	n = sk_X509_ATTRIBUTE_num(x);
249	0	for (i = 0; i < n; ++i) {
250	0	X509_ATTRIBUTE *attr = sk_X509_ATTRIBUTE_value(x, i);
251
252	0	if (X509at_add1_attr(&sk, attr) == NULL) {
253	0	sk_X509_ATTRIBUTE_pop_free(sk, X509_ATTRIBUTE_free);
254	0	return NULL;
255	0	}
256	0	}
257	0	return sk;
258	0	}
259
260		X509_ATTRIBUTE X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE *attr, int nid,
261		int atrtype, const void *data,
262		int len)
263	0	{
264	0	ASN1_OBJECT *obj;
265	0	X509_ATTRIBUTE *ret;
266
267	0	obj = OBJ_nid2obj(nid);
268	0	if (obj == NULL) {
269	0	ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_NID);
270	0	return NULL;
271	0	}
272	0	ret = X509_ATTRIBUTE_create_by_OBJ(attr, obj, atrtype, data, len);
273	0	if (ret == NULL)
274	0	ASN1_OBJECT_free(obj);
275	0	return ret;
276	0	}
277
278		X509_ATTRIBUTE X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE *attr,
279		const ASN1_OBJECT *obj,
280		int atrtype, const void *data,
281		int len)
282	0	{
283	0	X509_ATTRIBUTE *ret;
284
285	0	if ((attr == NULL) \|\| (*attr == NULL)) {
286	0	if ((ret = X509_ATTRIBUTE_new()) == NULL) {
287	0	ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
288	0	return NULL;
289	0	}
290	0	} else
291	0	ret = *attr;
292
293	0	if (!X509_ATTRIBUTE_set1_object(ret, obj))
294	0	goto err;
295	0	if (!X509_ATTRIBUTE_set1_data(ret, atrtype, data, len))
296	0	goto err;
297
298	0	if ((attr != NULL) && (*attr == NULL))
299	0	*attr = ret;
300	0	return ret;
301	0	err:
302	0	if ((attr == NULL) \|\| (ret != *attr))
303	0	X509_ATTRIBUTE_free(ret);
304	0	return NULL;
305	0	}
306
307		X509_ATTRIBUTE X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE *attr,
308		const char *atrname, int type,
309		const unsigned char *bytes,
310		int len)
311	0	{
312	0	ASN1_OBJECT *obj;
313	0	X509_ATTRIBUTE *nattr;
314
315	0	obj = OBJ_txt2obj(atrname, 0);
316	0	if (obj == NULL) {
317	0	ERR_raise_data(ERR_LIB_X509, X509_R_INVALID_FIELD_NAME,
318	0	"name=%s", atrname);
319	0	return NULL;
320	0	}
321	0	nattr = X509_ATTRIBUTE_create_by_OBJ(attr, obj, type, bytes, len);
322	0	ASN1_OBJECT_free(obj);
323	0	return nattr;
324	0	}
325
326		int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE attr, const ASN1_OBJECT obj)
327	0	{
328	0	if ((attr == NULL) \|\| (obj == NULL))
329	0	return 0;
330	0	ASN1_OBJECT_free(attr->object);
331	0	attr->object = OBJ_dup(obj);
332	0	return attr->object != NULL;
333	0	}
334
335		int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype,
336		const void *data, int len)
337	0	{
338	0	ASN1_TYPE *ttmp = NULL;
339	0	ASN1_STRING *stmp = NULL;
340	0	int atype = 0;
341	0	if (!attr)
342	0	return 0;
343	0	if (attrtype & MBSTRING_FLAG) {
344	0	stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype,
345	0	OBJ_obj2nid(attr->object));
346	0	if (!stmp) {
347	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
348	0	return 0;
349	0	}
350	0	atype = stmp->type;
351	0	} else if (len != -1) {
352	0	if ((stmp = ASN1_STRING_type_new(attrtype)) == NULL)
353	0	goto err;
354	0	if (!ASN1_STRING_set(stmp, data, len))
355	0	goto err;
356	0	atype = attrtype;
357	0	}
358		/*
359		* This is a bit naughty because the attribute should really have at
360		* least one value but some types use and zero length SET and require
361		* this.
362		*/
363	0	if (attrtype == 0) {
364	0	ASN1_STRING_free(stmp);
365	0	return 1;
366	0	}
367	0	if ((ttmp = ASN1_TYPE_new()) == NULL)
368	0	goto err;
369	0	if ((len == -1) && !(attrtype & MBSTRING_FLAG)) {
370	0	if (!ASN1_TYPE_set1(ttmp, attrtype, data))
371	0	goto err;
372	0	} else {
373	0	ASN1_TYPE_set(ttmp, atype, stmp);
374	0	stmp = NULL;
375	0	}
376	0	if (!sk_ASN1_TYPE_push(attr->set, ttmp))
377	0	goto err;
378	0	return 1;
379	0	err:
380	0	ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
381	0	ASN1_TYPE_free(ttmp);
382	0	ASN1_STRING_free(stmp);
383	0	return 0;
384	0	}
385
386		int X509_ATTRIBUTE_count(const X509_ATTRIBUTE *attr)
387	749k	{
388	749k	if (attr == NULL)
389	0	return 0;
390	749k	return sk_ASN1_TYPE_num(attr->set);
391	749k	}
392
393		ASN1_OBJECT X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE attr)
394	224k	{
395	224k	if (attr == NULL)
396	0	return NULL;
397	224k	return attr->object;
398	224k	}
399
400		void X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE attr, int idx,
401		int atrtype, void *data)
402	0	{
403	0	ASN1_TYPE *ttmp;
404	0	ttmp = X509_ATTRIBUTE_get0_type(attr, idx);
405	0	if (!ttmp)
406	0	return NULL;
407	0	if (atrtype == V_ASN1_BOOLEAN
408	0	\|\| atrtype == V_ASN1_NULL
409	0	\|\| atrtype != ASN1_TYPE_get(ttmp)) {
410	0	ERR_raise(ERR_LIB_X509, X509_R_WRONG_TYPE);
411	0	return NULL;
412	0	}
413	0	return ttmp->value.ptr;
414	0	}
415
416		ASN1_TYPE X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE attr, int idx)
417	5.66M	{
418	5.66M	if (attr == NULL)
419	0	return NULL;
420	5.66M	return sk_ASN1_TYPE_value(attr->set, idx);
421	5.66M	}