/src/openssl/crypto/x509/x509_att.c

Source (jump to first uncovered line)
/*
 * 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) {
        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) *ossl_x509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x,
                                                const 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) {
        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(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_data(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE,
                       "name=%s", OBJ_nid2sn(OBJ_obj2nid(attr->object)));
        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_data(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE,
                       "name=%s", OBJ_nid2sn(OBJ_obj2nid(obj)));
        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_data(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE,
                       "name=%s", OBJ_nid2sn(nid));
        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 == 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: 2025-06-13 06:57

Line	Count	Source (jump to first uncovered line)
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	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) ossl_x509at_add1_attr(STACK_OF(X509_ATTRIBUTE) *x,
83		const 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
93	0	if (*x == NULL) {
94	0	if ((sk = sk_X509_ATTRIBUTE_new_null()) == NULL) {
95	0	ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
96	0	goto err;
97	0	}
98	0	} else {
99	0	sk = *x;
100	0	}
101
102	0	if ((new_attr = X509_ATTRIBUTE_dup(attr)) == NULL)
103	0	goto err;
104	0	if (!sk_X509_ATTRIBUTE_push(sk, new_attr)) {
105	0	ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
106	0	goto err;
107	0	}
108	0	if (*x == NULL)
109	0	*x = sk;
110	0	return sk;
111	0	err:
112	0	X509_ATTRIBUTE_free(new_attr);
113	0	if (*x == NULL)
114	0	sk_X509_ATTRIBUTE_free(sk);
115	0	return NULL;
116	0	}
117
118		STACK_OF(X509_ATTRIBUTE) X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) *x,
119		X509_ATTRIBUTE *attr)
120	0	{
121	0	if (x == NULL \|\| attr == NULL) {
122	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
123	0	return NULL;
124	0	}
125	0	if (x != NULL && X509at_get_attr_by_OBJ(x, attr->object, -1) != -1) {
126	0	ERR_raise_data(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE,
127	0	"name=%s", OBJ_nid2sn(OBJ_obj2nid(attr->object)));
128	0	return NULL;
129	0	}
130
131	0	return ossl_x509at_add1_attr(x, attr);
132	0	}
133
134		STACK_OF(X509_ATTRIBUTE) ossl_x509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE) *x,
135		const ASN1_OBJECT *obj,
136		int type,
137		const unsigned char *bytes,
138		int len)
139	0	{
140	0	X509_ATTRIBUTE *attr;
141	0	STACK_OF(X509_ATTRIBUTE) *ret;
142
143	0	attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len);
144	0	if (attr == NULL)
145	0	return 0;
146	0	ret = ossl_x509at_add1_attr(x, attr);
147	0	X509_ATTRIBUTE_free(attr);
148	0	return ret;
149	0	}
150
151		STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE)
152		*x, const ASN1_OBJECT obj,
153		int type,
154		const unsigned char *bytes,
155		int len)
156	0	{
157	0	if (x == NULL \|\| obj == NULL) {
158	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
159	0	return NULL;
160	0	}
161	0	if (x != NULL && X509at_get_attr_by_OBJ(x, obj, -1) != -1) {
162	0	ERR_raise_data(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE,
163	0	"name=%s", OBJ_nid2sn(OBJ_obj2nid(obj)));
164	0	return NULL;
165	0	}
166
167	0	return ossl_x509at_add1_attr_by_OBJ(x, obj, type, bytes, len);
168	0	}
169
170		STACK_OF(X509_ATTRIBUTE) ossl_x509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE) *x,
171		int nid, int type,
172		const unsigned char *bytes,
173		int len)
174	0	{
175	0	X509_ATTRIBUTE *attr;
176	0	STACK_OF(X509_ATTRIBUTE) *ret;
177
178	0	attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len);
179	0	if (attr == NULL)
180	0	return 0;
181	0	ret = ossl_x509at_add1_attr(x, attr);
182	0	X509_ATTRIBUTE_free(attr);
183	0	return ret;
184	0	}
185
186		STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE)
187		**x, int nid, int type,
188		const unsigned char *bytes,
189		int len)
190	0	{
191	0	if (x == NULL) {
192	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
193	0	return NULL;
194	0	}
195	0	if (x != NULL && X509at_get_attr_by_NID(x, nid, -1) != -1) {
196	0	ERR_raise_data(ERR_LIB_X509, X509_R_DUPLICATE_ATTRIBUTE,
197	0	"name=%s", OBJ_nid2sn(nid));
198	0	return NULL;
199	0	}
200
201	0	return ossl_x509at_add1_attr_by_NID(x, nid, type, bytes, len);
202	0	}
203
204		STACK_OF(X509_ATTRIBUTE) ossl_x509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE) *x,
205		const char *attrname,
206		int type,
207		const unsigned char *bytes,
208		int len)
209	0	{
210	0	X509_ATTRIBUTE *attr;
211	0	STACK_OF(X509_ATTRIBUTE) *ret;
212
213	0	attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
214	0	if (attr == NULL)
215	0	return 0;
216	0	ret = ossl_x509at_add1_attr(x, attr);
217	0	X509_ATTRIBUTE_free(attr);
218	0	return ret;
219	0	}
220
221		STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE)
222		*x, const char attrname,
223		int type,
224		const unsigned char *bytes,
225		int len)
226	0	{
227	0	X509_ATTRIBUTE *attr;
228	0	STACK_OF(X509_ATTRIBUTE) *ret;
229
230	0	attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
231	0	if (attr == NULL)
232	0	return 0;
233	0	ret = X509at_add1_attr(x, attr);
234	0	X509_ATTRIBUTE_free(attr);
235	0	return ret;
236	0	}
237
238		void X509at_get0_data_by_OBJ(const STACK_OF(X509_ATTRIBUTE) x,
239		const ASN1_OBJECT *obj, int lastpos, int type)
240	0	{
241	0	int i = X509at_get_attr_by_OBJ(x, obj, lastpos);
242	0	X509_ATTRIBUTE *at;
243
244	0	if (i == -1)
245	0	return NULL;
246	0	if (lastpos <= -2 && X509at_get_attr_by_OBJ(x, obj, i) != -1)
247	0	return NULL;
248	0	at = X509at_get_attr(x, i);
249	0	if (lastpos <= -3 && X509_ATTRIBUTE_count(at) != 1)
250	0	return NULL;
251	0	return X509_ATTRIBUTE_get0_data(at, 0, type, NULL);
252	0	}
253
254		STACK_OF(X509_ATTRIBUTE) ossl_x509at_dup(const STACK_OF(X509_ATTRIBUTE) x)
255	0	{
256	0	int i, n = sk_X509_ATTRIBUTE_num(x);
257	0	STACK_OF(X509_ATTRIBUTE) *sk = NULL;
258
259	0	for (i = 0; i < n; ++i) {
260	0	if (X509at_add1_attr(&sk, sk_X509_ATTRIBUTE_value(x, i)) == NULL) {
261	0	sk_X509_ATTRIBUTE_pop_free(sk, X509_ATTRIBUTE_free);
262	0	return NULL;
263	0	}
264	0	}
265	0	return sk;
266	0	}
267
268		X509_ATTRIBUTE X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE *attr, int nid,
269		int atrtype, const void *data,
270		int len)
271	0	{
272	0	ASN1_OBJECT *obj = OBJ_nid2obj(nid);
273	0	X509_ATTRIBUTE *ret;
274
275	0	if (obj == NULL) {
276	0	ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_NID);
277	0	return NULL;
278	0	}
279	0	ret = X509_ATTRIBUTE_create_by_OBJ(attr, obj, atrtype, data, len);
280	0	if (ret == NULL)
281	0	ASN1_OBJECT_free(obj);
282	0	return ret;
283	0	}
284
285		X509_ATTRIBUTE X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE *attr,
286		const ASN1_OBJECT *obj,
287		int atrtype, const void *data,
288		int len)
289	0	{
290	0	X509_ATTRIBUTE *ret;
291
292	0	if (attr == NULL \|\| *attr == NULL) {
293	0	if ((ret = X509_ATTRIBUTE_new()) == NULL) {
294	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
295	0	return NULL;
296	0	}
297	0	} else {
298	0	ret = *attr;
299	0	}
300
301	0	if (!X509_ATTRIBUTE_set1_object(ret, obj))
302	0	goto err;
303	0	if (!X509_ATTRIBUTE_set1_data(ret, atrtype, data, len))
304	0	goto err;
305
306	0	if (attr != NULL && *attr == NULL)
307	0	*attr = ret;
308	0	return ret;
309	0	err:
310	0	if (attr == NULL \|\| ret != *attr)
311	0	X509_ATTRIBUTE_free(ret);
312	0	return NULL;
313	0	}
314
315		X509_ATTRIBUTE X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE *attr,
316		const char *atrname, int type,
317		const unsigned char *bytes,
318		int len)
319	0	{
320	0	ASN1_OBJECT *obj = OBJ_txt2obj(atrname, 0);
321	0	X509_ATTRIBUTE *nattr;
322
323	0	if (obj == NULL) {
324	0	ERR_raise_data(ERR_LIB_X509, X509_R_INVALID_FIELD_NAME,
325	0	"name=%s", atrname);
326	0	return NULL;
327	0	}
328	0	nattr = X509_ATTRIBUTE_create_by_OBJ(attr, obj, type, bytes, len);
329	0	ASN1_OBJECT_free(obj);
330	0	return nattr;
331	0	}
332
333		int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE attr, const ASN1_OBJECT obj)
334	0	{
335	0	if (attr == NULL \|\| obj == NULL) {
336	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
337	0	return 0;
338	0	}
339	0	ASN1_OBJECT_free(attr->object);
340	0	attr->object = OBJ_dup(obj);
341	0	return attr->object != NULL;
342	0	}
343
344		int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype,
345		const void *data, int len)
346	0	{
347	0	ASN1_TYPE *ttmp = NULL;
348	0	ASN1_STRING *stmp = NULL;
349	0	int atype = 0;
350
351	0	if (attr == NULL) {
352	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
353	0	return 0;
354	0	}
355	0	if ((attrtype & MBSTRING_FLAG) != 0) {
356	0	stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype,
357	0	OBJ_obj2nid(attr->object));
358	0	if (stmp == NULL) {
359	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
360	0	return 0;
361	0	}
362	0	atype = stmp->type;
363	0	} else if (len != -1) {
364	0	if ((stmp = ASN1_STRING_type_new(attrtype)) == NULL
365	0	\|\| !ASN1_STRING_set(stmp, data, len)) {
366	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
367	0	goto err;
368	0	}
369	0	atype = attrtype;
370	0	}
371		/*
372		* This is a bit naughty because the attribute should really have at
373		* least one value but some types use and zero length SET and require
374		* this.
375		*/
376	0	if (attrtype == 0) {
377	0	ASN1_STRING_free(stmp);
378	0	return 1;
379	0	}
380	0	if ((ttmp = ASN1_TYPE_new()) == NULL) {
381	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
382	0	goto err;
383	0	}
384	0	if (len == -1 && (attrtype & MBSTRING_FLAG) == 0) {
385	0	if (!ASN1_TYPE_set1(ttmp, attrtype, data)) {
386	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
387	0	goto err;
388	0	}
389	0	} else {
390	0	ASN1_TYPE_set(ttmp, atype, stmp);
391	0	stmp = NULL;
392	0	}
393	0	if (!sk_ASN1_TYPE_push(attr->set, ttmp)) {
394	0	ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
395	0	goto err;
396	0	}
397	0	return 1;
398	0	err:
399	0	ASN1_TYPE_free(ttmp);
400	0	ASN1_STRING_free(stmp);
401	0	return 0;
402	0	}
403
404		int X509_ATTRIBUTE_count(const X509_ATTRIBUTE *attr)
405	0	{
406	0	if (attr == NULL)
407	0	return 0;
408	0	return sk_ASN1_TYPE_num(attr->set);
409	0	}
410
411		ASN1_OBJECT X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE attr)
412	0	{
413	0	if (attr == NULL) {
414	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
415	0	return NULL;
416	0	}
417	0	return attr->object;
418	0	}
419
420		void X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE attr, int idx,
421		int atrtype, void *data)
422	0	{
423	0	ASN1_TYPE *ttmp = X509_ATTRIBUTE_get0_type(attr, idx);
424
425	0	if (ttmp == NULL)
426	0	return NULL;
427	0	if (atrtype == V_ASN1_BOOLEAN
428	0	\|\| atrtype == V_ASN1_NULL
429	0	\|\| atrtype != ASN1_TYPE_get(ttmp)) {
430	0	ERR_raise(ERR_LIB_X509, X509_R_WRONG_TYPE);
431	0	return NULL;
432	0	}
433	0	return ttmp->value.ptr;
434	0	}
435
436		ASN1_TYPE X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE attr, int idx)
437	0	{
438	0	if (attr == NULL) {
439	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
440	0	return NULL;
441	0	}
442	0	return sk_ASN1_TYPE_value(attr->set, idx);
443	0	}