/src/openssl111/crypto/objects/obj_dat.c

Source (jump to first uncovered line)
/*
 * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (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 "crypto/ctype.h"
#include <limits.h>
#include "internal/cryptlib.h"
#include <openssl/lhash.h>
#include <openssl/asn1.h>
#include "crypto/objects.h"
#include <openssl/bn.h>
#include "crypto/asn1.h"
#include "obj_local.h"

/* obj_dat.h is generated from objects.h by obj_dat.pl */
#include "obj_dat.h"

DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn);
DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln);
DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj);

#define ADDED_DATA      0
#define ADDED_SNAME     1
#define ADDED_LNAME     2
#define ADDED_NID       3

struct added_obj_st {
    int type;
    ASN1_OBJECT *obj;
};

static int new_nid = NUM_NID;
static LHASH_OF(ADDED_OBJ) *added = NULL;

static int sn_cmp(const ASN1_OBJECT *const *a, const unsigned int *b)
{
    return strcmp((*a)->sn, nid_objs[*b].sn);
}

IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn);

static int ln_cmp(const ASN1_OBJECT *const *a, const unsigned int *b)
{
    return strcmp((*a)->ln, nid_objs[*b].ln);
}

IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln);

static unsigned long added_obj_hash(const ADDED_OBJ *ca)
{
    const ASN1_OBJECT *a;
    int i;
    unsigned long ret = 0;
    unsigned char *p;

    a = ca->obj;
    switch (ca->type) {
    case ADDED_DATA:
        ret = a->length << 20L;
        p = (unsigned char *)a->data;
        for (i = 0; i < a->length; i++)
            ret ^= p[i] << ((i * 3) % 24);
        break;
    case ADDED_SNAME:
        ret = OPENSSL_LH_strhash(a->sn);
        break;
    case ADDED_LNAME:
        ret = OPENSSL_LH_strhash(a->ln);
        break;
    case ADDED_NID:
        ret = a->nid;
        break;
    default:
        /* abort(); */
        return 0;
    }
    ret &= 0x3fffffffL;
    ret |= ((unsigned long)ca->type) << 30L;
    return ret;
}

static int added_obj_cmp(const ADDED_OBJ *ca, const ADDED_OBJ *cb)
{
    ASN1_OBJECT *a, *b;
    int i;

    i = ca->type - cb->type;
    if (i)
        return i;
    a = ca->obj;
    b = cb->obj;
    switch (ca->type) {
    case ADDED_DATA:
        i = (a->length - b->length);
        if (i)
            return i;
        return memcmp(a->data, b->data, (size_t)a->length);
    case ADDED_SNAME:
        if (a->sn == NULL)
            return -1;
        else if (b->sn == NULL)
            return 1;
        else
            return strcmp(a->sn, b->sn);
    case ADDED_LNAME:
        if (a->ln == NULL)
            return -1;
        else if (b->ln == NULL)
            return 1;
        else
            return strcmp(a->ln, b->ln);
    case ADDED_NID:
        return a->nid - b->nid;
    default:
        /* abort(); */
        return 0;
    }
}

static int init_added(void)
{
    if (added != NULL)
        return 1;
    added = lh_ADDED_OBJ_new(added_obj_hash, added_obj_cmp);
    return added != NULL;
}

static void cleanup1_doall(ADDED_OBJ *a)
{
    a->obj->nid = 0;
    a->obj->flags |= ASN1_OBJECT_FLAG_DYNAMIC |
        ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | ASN1_OBJECT_FLAG_DYNAMIC_DATA;
}

static void cleanup2_doall(ADDED_OBJ *a)
{
    a->obj->nid++;
}

static void cleanup3_doall(ADDED_OBJ *a)
{
    if (--a->obj->nid == 0)
        ASN1_OBJECT_free(a->obj);
    OPENSSL_free(a);
}

void obj_cleanup_int(void)
{
    if (added == NULL)
        return;
    lh_ADDED_OBJ_set_down_load(added, 0);
    lh_ADDED_OBJ_doall(added, cleanup1_doall); /* zero counters */
    lh_ADDED_OBJ_doall(added, cleanup2_doall); /* set counters */
    lh_ADDED_OBJ_doall(added, cleanup3_doall); /* free objects */
    lh_ADDED_OBJ_free(added);
    added = NULL;
}

int OBJ_new_nid(int num)
{
    int i;

    i = new_nid;
    new_nid += num;
    return i;
}

int OBJ_add_object(const ASN1_OBJECT *obj)
{
    ASN1_OBJECT *o;
    ADDED_OBJ *ao[4] = { NULL, NULL, NULL, NULL }, *aop;
    int i;

    if (added == NULL)
        if (!init_added())
            return 0;
    if ((o = OBJ_dup(obj)) == NULL)
        goto err;
    if ((ao[ADDED_NID] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
        goto err2;
    if ((o->length != 0) && (obj->data != NULL))
        if ((ao[ADDED_DATA] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
            goto err2;
    if (o->sn != NULL)
        if ((ao[ADDED_SNAME] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
            goto err2;
    if (o->ln != NULL)
        if ((ao[ADDED_LNAME] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
            goto err2;

    for (i = ADDED_DATA; i <= ADDED_NID; i++) {
        if (ao[i] != NULL) {
            ao[i]->type = i;
            ao[i]->obj = o;
            aop = lh_ADDED_OBJ_insert(added, ao[i]);
            /* memory leak, but should not normally matter */
            OPENSSL_free(aop);
        }
    }
    o->flags &=
        ~(ASN1_OBJECT_FLAG_DYNAMIC | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
          ASN1_OBJECT_FLAG_DYNAMIC_DATA);

    return o->nid;
 err2:
    OBJerr(OBJ_F_OBJ_ADD_OBJECT, ERR_R_MALLOC_FAILURE);
 err:
    for (i = ADDED_DATA; i <= ADDED_NID; i++)
        OPENSSL_free(ao[i]);
    ASN1_OBJECT_free(o);
    return NID_undef;
}

ASN1_OBJECT *OBJ_nid2obj(int n)
{
    ADDED_OBJ ad, *adp;
    ASN1_OBJECT ob;

    if ((n >= 0) && (n < NUM_NID)) {
        if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
            OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID);
            return NULL;
        }
        return (ASN1_OBJECT *)&(nid_objs[n]);
    } else if (added == NULL) {
        OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID);
        return NULL;
    } else {
        ad.type = ADDED_NID;
        ad.obj = &ob;
        ob.nid = n;
        adp = lh_ADDED_OBJ_retrieve(added, &ad);
        if (adp != NULL)
            return adp->obj;
        else {
            OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID);
            return NULL;
        }
    }
}

const char *OBJ_nid2sn(int n)
{
    ADDED_OBJ ad, *adp;
    ASN1_OBJECT ob;

    if ((n >= 0) && (n < NUM_NID)) {
        if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
            OBJerr(OBJ_F_OBJ_NID2SN, OBJ_R_UNKNOWN_NID);
            return NULL;
        }
        return nid_objs[n].sn;
    } else if (added == NULL)
        return NULL;
    else {
        ad.type = ADDED_NID;
        ad.obj = &ob;
        ob.nid = n;
        adp = lh_ADDED_OBJ_retrieve(added, &ad);
        if (adp != NULL)
            return adp->obj->sn;
        else {
            OBJerr(OBJ_F_OBJ_NID2SN, OBJ_R_UNKNOWN_NID);
            return NULL;
        }
    }
}

const char *OBJ_nid2ln(int n)
{
    ADDED_OBJ ad, *adp;
    ASN1_OBJECT ob;

    if ((n >= 0) && (n < NUM_NID)) {
        if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
            OBJerr(OBJ_F_OBJ_NID2LN, OBJ_R_UNKNOWN_NID);
            return NULL;
        }
        return nid_objs[n].ln;
    } else if (added == NULL)
        return NULL;
    else {
        ad.type = ADDED_NID;
        ad.obj = &ob;
        ob.nid = n;
        adp = lh_ADDED_OBJ_retrieve(added, &ad);
        if (adp != NULL)
            return adp->obj->ln;
        else {
            OBJerr(OBJ_F_OBJ_NID2LN, OBJ_R_UNKNOWN_NID);
            return NULL;
        }
    }
}

static int obj_cmp(const ASN1_OBJECT *const *ap, const unsigned int *bp)
{
    int j;
    const ASN1_OBJECT *a = *ap;
    const ASN1_OBJECT *b = &nid_objs[*bp];

    j = (a->length - b->length);
    if (j)
        return j;
    if (a->length == 0)
        return 0;
    return memcmp(a->data, b->data, a->length);
}

IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj);

int OBJ_obj2nid(const ASN1_OBJECT *a)
{
    const unsigned int *op;
    ADDED_OBJ ad, *adp;

    if (a == NULL)
        return NID_undef;
    if (a->nid != 0)
        return a->nid;

    if (a->length == 0)
        return NID_undef;

    if (added != NULL) {
        ad.type = ADDED_DATA;
        ad.obj = (ASN1_OBJECT *)a; /* XXX: ugly but harmless */
        adp = lh_ADDED_OBJ_retrieve(added, &ad);
        if (adp != NULL)
            return adp->obj->nid;
    }
    op = OBJ_bsearch_obj(&a, obj_objs, NUM_OBJ);
    if (op == NULL)
        return NID_undef;
    return nid_objs[*op].nid;
}

/*
 * Convert an object name into an ASN1_OBJECT if "noname" is not set then
 * search for short and long names first. This will convert the "dotted" form
 * into an object: unlike OBJ_txt2nid it can be used with any objects, not
 * just registered ones.
 */

ASN1_OBJECT *OBJ_txt2obj(const char *s, int no_name)
{
    int nid = NID_undef;
    ASN1_OBJECT *op;
    unsigned char *buf;
    unsigned char *p;
    const unsigned char *cp;
    int i, j;

    if (!no_name) {
        if (((nid = OBJ_sn2nid(s)) != NID_undef) ||
            ((nid = OBJ_ln2nid(s)) != NID_undef))
            return OBJ_nid2obj(nid);
    }

    /* Work out size of content octets */
    i = a2d_ASN1_OBJECT(NULL, 0, s, -1);
    if (i <= 0) {
        /* Don't clear the error */
        /*
         * ERR_clear_error();
         */
        return NULL;
    }
    /* Work out total size */
    j = ASN1_object_size(0, i, V_ASN1_OBJECT);
    if (j < 0)
        return NULL;

    if ((buf = OPENSSL_malloc(j)) == NULL) {
        OBJerr(OBJ_F_OBJ_TXT2OBJ, ERR_R_MALLOC_FAILURE);
        return NULL;
    }

    p = buf;
    /* Write out tag+length */
    ASN1_put_object(&p, 0, i, V_ASN1_OBJECT, V_ASN1_UNIVERSAL);
    /* Write out contents */
    a2d_ASN1_OBJECT(p, i, s, -1);

    cp = buf;
    op = d2i_ASN1_OBJECT(NULL, &cp, j);
    OPENSSL_free(buf);
    return op;
}

int OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *a, int no_name)
{
    int i, n = 0, len, nid, first, use_bn;
    BIGNUM *bl;
    unsigned long l;
    const unsigned char *p;
    char tbuf[DECIMAL_SIZE(i) + DECIMAL_SIZE(l) + 2];

    /* Ensure that, at every state, |buf| is NUL-terminated. */
    if (buf && buf_len > 0)
        buf[0] = '\0';

    if ((a == NULL) || (a->data == NULL))
        return 0;

    if (!no_name && (nid = OBJ_obj2nid(a)) != NID_undef) {
        const char *s;
        s = OBJ_nid2ln(nid);
        if (s == NULL)
            s = OBJ_nid2sn(nid);
        if (s) {
            if (buf)
                OPENSSL_strlcpy(buf, s, buf_len);
            n = strlen(s);
            return n;
        }
    }

    len = a->length;
    p = a->data;

    first = 1;
    bl = NULL;

    /*
     * RFC 2578 (STD 58) says this about OBJECT IDENTIFIERs:
     *
     * > 3.5. OBJECT IDENTIFIER values
     * >
     * > An OBJECT IDENTIFIER value is an ordered list of non-negative
     * > numbers. For the SMIv2, each number in the list is referred to as a
     * > sub-identifier, there are at most 128 sub-identifiers in a value,
     * > and each sub-identifier has a maximum value of 2^32-1 (4294967295
     * > decimal).
     *
     * So a legitimate OID according to this RFC is at most (32 * 128 / 7),
     * i.e. 586 bytes long.
     *
     * Ref: https://datatracker.ietf.org/doc/html/rfc2578#section-3.5
     */
    if (len > 586)
        goto err;

    while (len > 0) {
        l = 0;
        use_bn = 0;
        for (;;) {
            unsigned char c = *p++;
            len--;
            if ((len == 0) && (c & 0x80))
                goto err;
            if (use_bn) {
                if (!BN_add_word(bl, c & 0x7f))
                    goto err;
            } else
                l |= c & 0x7f;
            if (!(c & 0x80))
                break;
            if (!use_bn && (l > (ULONG_MAX >> 7L))) {
                if (bl == NULL && (bl = BN_new()) == NULL)
                    goto err;
                if (!BN_set_word(bl, l))
                    goto err;
                use_bn = 1;
            }
            if (use_bn) {
                if (!BN_lshift(bl, bl, 7))
                    goto err;
            } else
                l <<= 7L;
        }

        if (first) {
            first = 0;
            if (l >= 80) {
                i = 2;
                if (use_bn) {
                    if (!BN_sub_word(bl, 80))
                        goto err;
                } else
                    l -= 80;
            } else {
                i = (int)(l / 40);
                l -= (long)(i * 40);
            }
            if (buf && (buf_len > 1)) {
                *buf++ = i + '0';
                *buf = '\0';
                buf_len--;
            }
            n++;
        }

        if (use_bn) {
            char *bndec;
            bndec = BN_bn2dec(bl);
            if (!bndec)
                goto err;
            i = strlen(bndec);
            if (buf) {
                if (buf_len > 1) {
                    *buf++ = '.';
                    *buf = '\0';
                    buf_len--;
                }
                OPENSSL_strlcpy(buf, bndec, buf_len);
                if (i > buf_len) {
                    buf += buf_len;
                    buf_len = 0;
                } else {
                    buf += i;
                    buf_len -= i;
                }
            }
            n++;
            n += i;
            OPENSSL_free(bndec);
        } else {
            BIO_snprintf(tbuf, sizeof(tbuf), ".%lu", l);
            i = strlen(tbuf);
            if (buf && (buf_len > 0)) {
                OPENSSL_strlcpy(buf, tbuf, buf_len);
                if (i > buf_len) {
                    buf += buf_len;
                    buf_len = 0;
                } else {
                    buf += i;
                    buf_len -= i;
                }
            }
            n += i;
            l = 0;
        }
    }

    BN_free(bl);
    return n;

 err:
    BN_free(bl);
    return -1;
}

int OBJ_txt2nid(const char *s)
{
    ASN1_OBJECT *obj;
    int nid;
    obj = OBJ_txt2obj(s, 0);
    nid = OBJ_obj2nid(obj);
    ASN1_OBJECT_free(obj);
    return nid;
}

int OBJ_ln2nid(const char *s)
{
    ASN1_OBJECT o;
    const ASN1_OBJECT *oo = &o;
    ADDED_OBJ ad, *adp;
    const unsigned int *op;

    o.ln = s;
    if (added != NULL) {
        ad.type = ADDED_LNAME;
        ad.obj = &o;
        adp = lh_ADDED_OBJ_retrieve(added, &ad);
        if (adp != NULL)
            return adp->obj->nid;
    }
    op = OBJ_bsearch_ln(&oo, ln_objs, NUM_LN);
    if (op == NULL)
        return NID_undef;
    return nid_objs[*op].nid;
}

int OBJ_sn2nid(const char *s)
{
    ASN1_OBJECT o;
    const ASN1_OBJECT *oo = &o;
    ADDED_OBJ ad, *adp;
    const unsigned int *op;

    o.sn = s;
    if (added != NULL) {
        ad.type = ADDED_SNAME;
        ad.obj = &o;
        adp = lh_ADDED_OBJ_retrieve(added, &ad);
        if (adp != NULL)
            return adp->obj->nid;
    }
    op = OBJ_bsearch_sn(&oo, sn_objs, NUM_SN);
    if (op == NULL)
        return NID_undef;
    return nid_objs[*op].nid;
}

const void *OBJ_bsearch_(const void *key, const void *base, int num, int size,
                         int (*cmp) (const void *, const void *))
{
    return OBJ_bsearch_ex_(key, base, num, size, cmp, 0);
}

const void *OBJ_bsearch_ex_(const void *key, const void *base_, int num,
                            int size,
                            int (*cmp) (const void *, const void *),
                            int flags)
{
    const char *base = base_;
    int l, h, i = 0, c = 0;
    const char *p = NULL;

    if (num == 0)
        return NULL;
    l = 0;
    h = num;
    while (l < h) {
        i = (l + h) / 2;
        p = &(base[i * size]);
        c = (*cmp) (key, p);
        if (c < 0)
            h = i;
        else if (c > 0)
            l = i + 1;
        else
            break;
    }
#ifdef CHARSET_EBCDIC
    /*
     * THIS IS A KLUDGE - Because the *_obj is sorted in ASCII order, and I
     * don't have perl (yet), we revert to a *LINEAR* search when the object
     * wasn't found in the binary search.
     */
    if (c != 0) {
        for (i = 0; i < num; ++i) {
            p = &(base[i * size]);
            c = (*cmp) (key, p);
            if (c == 0 || (c < 0 && (flags & OBJ_BSEARCH_VALUE_ON_NOMATCH)))
                return p;
        }
    }
#endif
    if (c != 0 && !(flags & OBJ_BSEARCH_VALUE_ON_NOMATCH))
        p = NULL;
    else if (c == 0 && (flags & OBJ_BSEARCH_FIRST_VALUE_ON_MATCH)) {
        while (i > 0 && (*cmp) (key, &(base[(i - 1) * size])) == 0)
            i--;
        p = &(base[i * size]);
    }
    return p;
}

/*
 * Parse a BIO sink to create some extra oid's objects.
 * Line format:<OID:isdigit or '.']><isspace><SN><isspace><LN>
 */
int OBJ_create_objects(BIO *in)
{
    char buf[512];
    int i, num = 0;
    char *o, *s, *l = NULL;

    for (;;) {
        s = o = NULL;
        i = BIO_gets(in, buf, 512);
        if (i <= 0)
            return num;
        buf[i - 1] = '\0';
        if (!ossl_isalnum(buf[0]))
            return num;
        o = s = buf;
        while (ossl_isdigit(*s) || *s == '.')
            s++;
        if (*s != '\0') {
            *(s++) = '\0';
            while (ossl_isspace(*s))
                s++;
            if (*s == '\0') {
                s = NULL;
            } else {
                l = s;
                while (*l != '\0' && !ossl_isspace(*l))
                    l++;
                if (*l != '\0') {
                    *(l++) = '\0';
                    while (ossl_isspace(*l))
                        l++;
                    if (*l == '\0') {
                        l = NULL;
                    }
                } else {
                    l = NULL;
                }
            }
        } else {
            s = NULL;
        }
        if (*o == '\0')
            return num;
        if (!OBJ_create(o, s, l))
            return num;
        num++;
    }
}

int OBJ_create(const char *oid, const char *sn, const char *ln)
{
    ASN1_OBJECT *tmpoid = NULL;
    int ok = 0;

    /* Check to see if short or long name already present */
    if ((sn != NULL && OBJ_sn2nid(sn) != NID_undef)
            || (ln != NULL && OBJ_ln2nid(ln) != NID_undef)) {
        OBJerr(OBJ_F_OBJ_CREATE, OBJ_R_OID_EXISTS);
        return 0;
    }

    /* Convert numerical OID string to an ASN1_OBJECT structure */
    tmpoid = OBJ_txt2obj(oid, 1);
    if (tmpoid == NULL)
        return 0;

    /* If NID is not NID_undef then object already exists */
    if (OBJ_obj2nid(tmpoid) != NID_undef) {
        OBJerr(OBJ_F_OBJ_CREATE, OBJ_R_OID_EXISTS);
        goto err;
    }

    tmpoid->nid = OBJ_new_nid(1);
    tmpoid->sn = (char *)sn;
    tmpoid->ln = (char *)ln;

    ok = OBJ_add_object(tmpoid);

    tmpoid->sn = NULL;
    tmpoid->ln = NULL;

 err:
    ASN1_OBJECT_free(tmpoid);
    return ok;
}

size_t OBJ_length(const ASN1_OBJECT *obj)
{
    if (obj == NULL)
        return 0;
    return obj->length;
}

const unsigned char *OBJ_get0_data(const ASN1_OBJECT *obj)
{
    if (obj == NULL)
        return NULL;
    return obj->data;
}

Coverage Report

Created: 2023-06-08 06:40

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 OpenSSL license (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 "crypto/ctype.h"
12		#include <limits.h>
13		#include "internal/cryptlib.h"
14		#include <openssl/lhash.h>
15		#include <openssl/asn1.h>
16		#include "crypto/objects.h"
17		#include <openssl/bn.h>
18		#include "crypto/asn1.h"
19		#include "obj_local.h"
20
21		/* obj_dat.h is generated from objects.h by obj_dat.pl */
22		#include "obj_dat.h"
23
24		DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn);
25		DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln);
26		DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj);
27
28	0	#define ADDED_DATA 0
29	0	#define ADDED_SNAME 1
30	0	#define ADDED_LNAME 2
31	0	#define ADDED_NID 3
32
33		struct added_obj_st {
34		int type;
35		ASN1_OBJECT *obj;
36		};
37
38		static int new_nid = NUM_NID;
39		static LHASH_OF(ADDED_OBJ) *added = NULL;
40
41		static int sn_cmp(const ASN1_OBJECT const a, const unsigned int *b)
42	0	{
43	0	return strcmp((a)->sn, nid_objs[b].sn);
44	0	}
45
46		IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn);
47
48		static int ln_cmp(const ASN1_OBJECT const a, const unsigned int *b)
49	0	{
50	0	return strcmp((a)->ln, nid_objs[b].ln);
51	0	}
52
53		IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln);
54
55		static unsigned long added_obj_hash(const ADDED_OBJ *ca)
56	0	{
57	0	const ASN1_OBJECT *a;
58	0	int i;
59	0	unsigned long ret = 0;
60	0	unsigned char *p;
61
62	0	a = ca->obj;
63	0	switch (ca->type) {
64	0	case ADDED_DATA:
65	0	ret = a->length << 20L;
66	0	p = (unsigned char *)a->data;
67	0	for (i = 0; i < a->length; i++)
68	0	ret ^= p[i] << ((i * 3) % 24);
69	0	break;
70	0	case ADDED_SNAME:
71	0	ret = OPENSSL_LH_strhash(a->sn);
72	0	break;
73	0	case ADDED_LNAME:
74	0	ret = OPENSSL_LH_strhash(a->ln);
75	0	break;
76	0	case ADDED_NID:
77	0	ret = a->nid;
78	0	break;
79	0	default:
80		/* abort(); */
81	0	return 0;
82	0	}
83	0	ret &= 0x3fffffffL;
84	0	ret \|= ((unsigned long)ca->type) << 30L;
85	0	return ret;
86	0	}
87
88		static int added_obj_cmp(const ADDED_OBJ ca, const ADDED_OBJ cb)
89	0	{
90	0	ASN1_OBJECT a, b;
91	0	int i;
92
93	0	i = ca->type - cb->type;
94	0	if (i)
95	0	return i;
96	0	a = ca->obj;
97	0	b = cb->obj;
98	0	switch (ca->type) {
99	0	case ADDED_DATA:
100	0	i = (a->length - b->length);
101	0	if (i)
102	0	return i;
103	0	return memcmp(a->data, b->data, (size_t)a->length);
104	0	case ADDED_SNAME:
105	0	if (a->sn == NULL)
106	0	return -1;
107	0	else if (b->sn == NULL)
108	0	return 1;
109	0	else
110	0	return strcmp(a->sn, b->sn);
111	0	case ADDED_LNAME:
112	0	if (a->ln == NULL)
113	0	return -1;
114	0	else if (b->ln == NULL)
115	0	return 1;
116	0	else
117	0	return strcmp(a->ln, b->ln);
118	0	case ADDED_NID:
119	0	return a->nid - b->nid;
120	0	default:
121		/* abort(); */
122	0	return 0;
123	0	}
124	0	}
125
126		static int init_added(void)
127	0	{
128	0	if (added != NULL)
129	0	return 1;
130	0	added = lh_ADDED_OBJ_new(added_obj_hash, added_obj_cmp);
131	0	return added != NULL;
132	0	}
133
134		static void cleanup1_doall(ADDED_OBJ *a)
135	0	{
136	0	a->obj->nid = 0;
137	0	a->obj->flags \|= ASN1_OBJECT_FLAG_DYNAMIC \|
138	0	ASN1_OBJECT_FLAG_DYNAMIC_STRINGS \| ASN1_OBJECT_FLAG_DYNAMIC_DATA;
139	0	}
140
141		static void cleanup2_doall(ADDED_OBJ *a)
142	0	{
143	0	a->obj->nid++;
144	0	}
145
146		static void cleanup3_doall(ADDED_OBJ *a)
147	0	{
148	0	if (--a->obj->nid == 0)
149	0	ASN1_OBJECT_free(a->obj);
150	0	OPENSSL_free(a);
151	0	}
152
153		void obj_cleanup_int(void)
154	2	{
155	2	if (added == NULL)
156	2	return;
157	0	lh_ADDED_OBJ_set_down_load(added, 0);
158	0	lh_ADDED_OBJ_doall(added, cleanup1_doall); /* zero counters */
159	0	lh_ADDED_OBJ_doall(added, cleanup2_doall); /* set counters */
160	0	lh_ADDED_OBJ_doall(added, cleanup3_doall); /* free objects */
161	0	lh_ADDED_OBJ_free(added);
162	0	added = NULL;
163	0	}
164
165		int OBJ_new_nid(int num)
166	0	{
167	0	int i;
168
169	0	i = new_nid;
170	0	new_nid += num;
171	0	return i;
172	0	}
173
174		int OBJ_add_object(const ASN1_OBJECT *obj)
175	0	{
176	0	ASN1_OBJECT *o;
177	0	ADDED_OBJ ao[4] = { NULL, NULL, NULL, NULL }, aop;
178	0	int i;
179
180	0	if (added == NULL)
181	0	if (!init_added())
182	0	return 0;
183	0	if ((o = OBJ_dup(obj)) == NULL)
184	0	goto err;
185	0	if ((ao[ADDED_NID] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
186	0	goto err2;
187	0	if ((o->length != 0) && (obj->data != NULL))
188	0	if ((ao[ADDED_DATA] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
189	0	goto err2;
190	0	if (o->sn != NULL)
191	0	if ((ao[ADDED_SNAME] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
192	0	goto err2;
193	0	if (o->ln != NULL)
194	0	if ((ao[ADDED_LNAME] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
195	0	goto err2;
196
197	0	for (i = ADDED_DATA; i <= ADDED_NID; i++) {
198	0	if (ao[i] != NULL) {
199	0	ao[i]->type = i;
200	0	ao[i]->obj = o;
201	0	aop = lh_ADDED_OBJ_insert(added, ao[i]);
202		/* memory leak, but should not normally matter */
203	0	OPENSSL_free(aop);
204	0	}
205	0	}
206	0	o->flags &=
207	0	~(ASN1_OBJECT_FLAG_DYNAMIC \| ASN1_OBJECT_FLAG_DYNAMIC_STRINGS \|
208	0	ASN1_OBJECT_FLAG_DYNAMIC_DATA);
209
210	0	return o->nid;
211	0	err2:
212	0	OBJerr(OBJ_F_OBJ_ADD_OBJECT, ERR_R_MALLOC_FAILURE);
213	0	err:
214	0	for (i = ADDED_DATA; i <= ADDED_NID; i++)
215	0	OPENSSL_free(ao[i]);
216	0	ASN1_OBJECT_free(o);
217	0	return NID_undef;
218	0	}
219
220		ASN1_OBJECT *OBJ_nid2obj(int n)
221	0	{
222	0	ADDED_OBJ ad, *adp;
223	0	ASN1_OBJECT ob;
224
225	0	if ((n >= 0) && (n < NUM_NID)) {
226	0	if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
227	0	OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID);
228	0	return NULL;
229	0	}
230	0	return (ASN1_OBJECT *)&(nid_objs[n]);
231	0	} else if (added == NULL) {
232	0	OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID);
233	0	return NULL;
234	0	} else {
235	0	ad.type = ADDED_NID;
236	0	ad.obj = &ob;
237	0	ob.nid = n;
238	0	adp = lh_ADDED_OBJ_retrieve(added, &ad);
239	0	if (adp != NULL)
240	0	return adp->obj;
241	0	else {
242	0	OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID);
243	0	return NULL;
244	0	}
245	0	}
246	0	}
247
248		const char *OBJ_nid2sn(int n)
249	0	{
250	0	ADDED_OBJ ad, *adp;
251	0	ASN1_OBJECT ob;
252
253	0	if ((n >= 0) && (n < NUM_NID)) {
254	0	if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
255	0	OBJerr(OBJ_F_OBJ_NID2SN, OBJ_R_UNKNOWN_NID);
256	0	return NULL;
257	0	}
258	0	return nid_objs[n].sn;
259	0	} else if (added == NULL)
260	0	return NULL;
261	0	else {
262	0	ad.type = ADDED_NID;
263	0	ad.obj = &ob;
264	0	ob.nid = n;
265	0	adp = lh_ADDED_OBJ_retrieve(added, &ad);
266	0	if (adp != NULL)
267	0	return adp->obj->sn;
268	0	else {
269	0	OBJerr(OBJ_F_OBJ_NID2SN, OBJ_R_UNKNOWN_NID);
270	0	return NULL;
271	0	}
272	0	}
273	0	}
274
275		const char *OBJ_nid2ln(int n)
276	0	{
277	0	ADDED_OBJ ad, *adp;
278	0	ASN1_OBJECT ob;
279
280	0	if ((n >= 0) && (n < NUM_NID)) {
281	0	if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
282	0	OBJerr(OBJ_F_OBJ_NID2LN, OBJ_R_UNKNOWN_NID);
283	0	return NULL;
284	0	}
285	0	return nid_objs[n].ln;
286	0	} else if (added == NULL)
287	0	return NULL;
288	0	else {
289	0	ad.type = ADDED_NID;
290	0	ad.obj = &ob;
291	0	ob.nid = n;
292	0	adp = lh_ADDED_OBJ_retrieve(added, &ad);
293	0	if (adp != NULL)
294	0	return adp->obj->ln;
295	0	else {
296	0	OBJerr(OBJ_F_OBJ_NID2LN, OBJ_R_UNKNOWN_NID);
297	0	return NULL;
298	0	}
299	0	}
300	0	}
301
302		static int obj_cmp(const ASN1_OBJECT const ap, const unsigned int *bp)
303	0	{
304	0	int j;
305	0	const ASN1_OBJECT a = ap;
306	0	const ASN1_OBJECT b = &nid_objs[bp];
307
308	0	j = (a->length - b->length);
309	0	if (j)
310	0	return j;
311	0	if (a->length == 0)
312	0	return 0;
313	0	return memcmp(a->data, b->data, a->length);
314	0	}
315
316		IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj);
317
318		int OBJ_obj2nid(const ASN1_OBJECT *a)
319	0	{
320	0	const unsigned int *op;
321	0	ADDED_OBJ ad, *adp;
322
323	0	if (a == NULL)
324	0	return NID_undef;
325	0	if (a->nid != 0)
326	0	return a->nid;
327
328	0	if (a->length == 0)
329	0	return NID_undef;
330
331	0	if (added != NULL) {
332	0	ad.type = ADDED_DATA;
333	0	ad.obj = (ASN1_OBJECT )a; / XXX: ugly but harmless */
334	0	adp = lh_ADDED_OBJ_retrieve(added, &ad);
335	0	if (adp != NULL)
336	0	return adp->obj->nid;
337	0	}
338	0	op = OBJ_bsearch_obj(&a, obj_objs, NUM_OBJ);
339	0	if (op == NULL)
340	0	return NID_undef;
341	0	return nid_objs[*op].nid;
342	0	}
343
344		/*
345		* Convert an object name into an ASN1_OBJECT if "noname" is not set then
346		* search for short and long names first. This will convert the "dotted" form
347		* into an object: unlike OBJ_txt2nid it can be used with any objects, not
348		* just registered ones.
349		*/
350
351		ASN1_OBJECT OBJ_txt2obj(const char s, int no_name)
352	0	{
353	0	int nid = NID_undef;
354	0	ASN1_OBJECT *op;
355	0	unsigned char *buf;
356	0	unsigned char *p;
357	0	const unsigned char *cp;
358	0	int i, j;
359
360	0	if (!no_name) {
361	0	if (((nid = OBJ_sn2nid(s)) != NID_undef) \|\|
362	0	((nid = OBJ_ln2nid(s)) != NID_undef))
363	0	return OBJ_nid2obj(nid);
364	0	}
365
366		/* Work out size of content octets */
367	0	i = a2d_ASN1_OBJECT(NULL, 0, s, -1);
368	0	if (i <= 0) {
369		/* Don't clear the error */
370		/*
371		* ERR_clear_error();
372		*/
373	0	return NULL;
374	0	}
375		/* Work out total size */
376	0	j = ASN1_object_size(0, i, V_ASN1_OBJECT);
377	0	if (j < 0)
378	0	return NULL;
379
380	0	if ((buf = OPENSSL_malloc(j)) == NULL) {
381	0	OBJerr(OBJ_F_OBJ_TXT2OBJ, ERR_R_MALLOC_FAILURE);
382	0	return NULL;
383	0	}
384
385	0	p = buf;
386		/* Write out tag+length */
387	0	ASN1_put_object(&p, 0, i, V_ASN1_OBJECT, V_ASN1_UNIVERSAL);
388		/* Write out contents */
389	0	a2d_ASN1_OBJECT(p, i, s, -1);
390
391	0	cp = buf;
392	0	op = d2i_ASN1_OBJECT(NULL, &cp, j);
393	0	OPENSSL_free(buf);
394	0	return op;
395	0	}
396
397		int OBJ_obj2txt(char buf, int buf_len, const ASN1_OBJECT a, int no_name)
398	0	{
399	0	int i, n = 0, len, nid, first, use_bn;
400	0	BIGNUM *bl;
401	0	unsigned long l;
402	0	const unsigned char *p;
403	0	char tbuf[DECIMAL_SIZE(i) + DECIMAL_SIZE(l) + 2];
404
405		/* Ensure that, at every state, \|buf\| is NUL-terminated. */
406	0	if (buf && buf_len > 0)
407	0	buf[0] = '\0';
408
409	0	if ((a == NULL) \|\| (a->data == NULL))
410	0	return 0;
411
412	0	if (!no_name && (nid = OBJ_obj2nid(a)) != NID_undef) {
413	0	const char *s;
414	0	s = OBJ_nid2ln(nid);
415	0	if (s == NULL)
416	0	s = OBJ_nid2sn(nid);
417	0	if (s) {
418	0	if (buf)
419	0	OPENSSL_strlcpy(buf, s, buf_len);
420	0	n = strlen(s);
421	0	return n;
422	0	}
423	0	}
424
425	0	len = a->length;
426	0	p = a->data;
427
428	0	first = 1;
429	0	bl = NULL;
430
431		/*
432		* RFC 2578 (STD 58) says this about OBJECT IDENTIFIERs:
433		*
434		* > 3.5. OBJECT IDENTIFIER values
435		* >
436		* > An OBJECT IDENTIFIER value is an ordered list of non-negative
437		* > numbers. For the SMIv2, each number in the list is referred to as a
438		* > sub-identifier, there are at most 128 sub-identifiers in a value,
439		* > and each sub-identifier has a maximum value of 2^32-1 (4294967295
440		* > decimal).
441		*
442		* So a legitimate OID according to this RFC is at most (32 * 128 / 7),
443		* i.e. 586 bytes long.
444		*
445		* Ref: https://datatracker.ietf.org/doc/html/rfc2578#section-3.5
446		*/
447	0	if (len > 586)
448	0	goto err;
449
450	0	while (len > 0) {
451	0	l = 0;
452	0	use_bn = 0;
453	0	for (;;) {
454	0	unsigned char c = *p++;
455	0	len--;
456	0	if ((len == 0) && (c & 0x80))
457	0	goto err;
458	0	if (use_bn) {
459	0	if (!BN_add_word(bl, c & 0x7f))
460	0	goto err;
461	0	} else
462	0	l \|= c & 0x7f;
463	0	if (!(c & 0x80))
464	0	break;
465	0	if (!use_bn && (l > (ULONG_MAX >> 7L))) {
466	0	if (bl == NULL && (bl = BN_new()) == NULL)
467	0	goto err;
468	0	if (!BN_set_word(bl, l))
469	0	goto err;
470	0	use_bn = 1;
471	0	}
472	0	if (use_bn) {
473	0	if (!BN_lshift(bl, bl, 7))
474	0	goto err;
475	0	} else
476	0	l <<= 7L;
477	0	}
478
479	0	if (first) {
480	0	first = 0;
481	0	if (l >= 80) {
482	0	i = 2;
483	0	if (use_bn) {
484	0	if (!BN_sub_word(bl, 80))
485	0	goto err;
486	0	} else
487	0	l -= 80;
488	0	} else {
489	0	i = (int)(l / 40);
490	0	l -= (long)(i * 40);
491	0	}
492	0	if (buf && (buf_len > 1)) {
493	0	*buf++ = i + '0';
494	0	*buf = '\0';
495	0	buf_len--;
496	0	}
497	0	n++;
498	0	}
499
500	0	if (use_bn) {
501	0	char *bndec;
502	0	bndec = BN_bn2dec(bl);
503	0	if (!bndec)
504	0	goto err;
505	0	i = strlen(bndec);
506	0	if (buf) {
507	0	if (buf_len > 1) {
508	0	*buf++ = '.';
509	0	*buf = '\0';
510	0	buf_len--;
511	0	}
512	0	OPENSSL_strlcpy(buf, bndec, buf_len);
513	0	if (i > buf_len) {
514	0	buf += buf_len;
515	0	buf_len = 0;
516	0	} else {
517	0	buf += i;
518	0	buf_len -= i;
519	0	}
520	0	}
521	0	n++;
522	0	n += i;
523	0	OPENSSL_free(bndec);
524	0	} else {
525	0	BIO_snprintf(tbuf, sizeof(tbuf), ".%lu", l);
526	0	i = strlen(tbuf);
527	0	if (buf && (buf_len > 0)) {
528	0	OPENSSL_strlcpy(buf, tbuf, buf_len);
529	0	if (i > buf_len) {
530	0	buf += buf_len;
531	0	buf_len = 0;
532	0	} else {
533	0	buf += i;
534	0	buf_len -= i;
535	0	}
536	0	}
537	0	n += i;
538	0	l = 0;
539	0	}
540	0	}
541
542	0	BN_free(bl);
543	0	return n;
544
545	0	err:
546	0	BN_free(bl);
547	0	return -1;
548	0	}
549
550		int OBJ_txt2nid(const char *s)
551	0	{
552	0	ASN1_OBJECT *obj;
553	0	int nid;
554	0	obj = OBJ_txt2obj(s, 0);
555	0	nid = OBJ_obj2nid(obj);
556	0	ASN1_OBJECT_free(obj);
557	0	return nid;
558	0	}
559
560		int OBJ_ln2nid(const char *s)
561	0	{
562	0	ASN1_OBJECT o;
563	0	const ASN1_OBJECT *oo = &o;
564	0	ADDED_OBJ ad, *adp;
565	0	const unsigned int *op;
566
567	0	o.ln = s;
568	0	if (added != NULL) {
569	0	ad.type = ADDED_LNAME;
570	0	ad.obj = &o;
571	0	adp = lh_ADDED_OBJ_retrieve(added, &ad);
572	0	if (adp != NULL)
573	0	return adp->obj->nid;
574	0	}
575	0	op = OBJ_bsearch_ln(&oo, ln_objs, NUM_LN);
576	0	if (op == NULL)
577	0	return NID_undef;
578	0	return nid_objs[*op].nid;
579	0	}
580
581		int OBJ_sn2nid(const char *s)
582	0	{
583	0	ASN1_OBJECT o;
584	0	const ASN1_OBJECT *oo = &o;
585	0	ADDED_OBJ ad, *adp;
586	0	const unsigned int *op;
587
588	0	o.sn = s;
589	0	if (added != NULL) {
590	0	ad.type = ADDED_SNAME;
591	0	ad.obj = &o;
592	0	adp = lh_ADDED_OBJ_retrieve(added, &ad);
593	0	if (adp != NULL)
594	0	return adp->obj->nid;
595	0	}
596	0	op = OBJ_bsearch_sn(&oo, sn_objs, NUM_SN);
597	0	if (op == NULL)
598	0	return NID_undef;
599	0	return nid_objs[*op].nid;
600	0	}
601
602		const void OBJ_bsearch_(const void key, const void *base, int num, int size,
603		int (cmp) (const void , const void *))
604	0	{
605	0	return OBJ_bsearch_ex_(key, base, num, size, cmp, 0);
606	0	}
607
608		const void OBJ_bsearch_ex_(const void key, const void *base_, int num,
609		int size,
610		int (cmp) (const void , const void *),
611		int flags)
612	0	{
613	0	const char *base = base_;
614	0	int l, h, i = 0, c = 0;
615	0	const char *p = NULL;
616
617	0	if (num == 0)
618	0	return NULL;
619	0	l = 0;
620	0	h = num;
621	0	while (l < h) {
622	0	i = (l + h) / 2;
623	0	p = &(base[i * size]);
624	0	c = (*cmp) (key, p);
625	0	if (c < 0)
626	0	h = i;
627	0	else if (c > 0)
628	0	l = i + 1;
629	0	else
630	0	break;
631	0	}
632		#ifdef CHARSET_EBCDIC
633		/*
634		* THIS IS A KLUDGE - Because the *_obj is sorted in ASCII order, and I
635		* don't have perl (yet), we revert to a LINEAR search when the object
636		* wasn't found in the binary search.
637		*/
638		if (c != 0) {
639		for (i = 0; i < num; ++i) {
640		p = &(base[i * size]);
641		c = (*cmp) (key, p);
642		if (c == 0 \|\| (c < 0 && (flags & OBJ_BSEARCH_VALUE_ON_NOMATCH)))
643		return p;
644		}
645		}
646		#endif
647	0	if (c != 0 && !(flags & OBJ_BSEARCH_VALUE_ON_NOMATCH))
648	0	p = NULL;
649	0	else if (c == 0 && (flags & OBJ_BSEARCH_FIRST_VALUE_ON_MATCH)) {
650	0	while (i > 0 && (cmp) (key, &(base[(i - 1) size])) == 0)
651	0	i--;
652	0	p = &(base[i * size]);
653	0	}
654	0	return p;
655	0	}
656
657		/*
658		* Parse a BIO sink to create some extra oid's objects.
659		* Line format:<OID:isdigit or '.']><isspace><SN><isspace><LN>
660		*/
661		int OBJ_create_objects(BIO *in)
662	0	{
663	0	char buf[512];
664	0	int i, num = 0;
665	0	char o, s, *l = NULL;
666
667	0	for (;;) {
668	0	s = o = NULL;
669	0	i = BIO_gets(in, buf, 512);
670	0	if (i <= 0)
671	0	return num;
672	0	buf[i - 1] = '\0';
673	0	if (!ossl_isalnum(buf[0]))
674	0	return num;
675	0	o = s = buf;
676	0	while (ossl_isdigit(s) \|\| s == '.')
677	0	s++;
678	0	if (*s != '\0') {
679	0	*(s++) = '\0';
680	0	while (ossl_isspace(*s))
681	0	s++;
682	0	if (*s == '\0') {
683	0	s = NULL;
684	0	} else {
685	0	l = s;
686	0	while (l != '\0' && !ossl_isspace(l))
687	0	l++;
688	0	if (*l != '\0') {
689	0	*(l++) = '\0';
690	0	while (ossl_isspace(*l))
691	0	l++;
692	0	if (*l == '\0') {
693	0	l = NULL;
694	0	}
695	0	} else {
696	0	l = NULL;
697	0	}
698	0	}
699	0	} else {
700	0	s = NULL;
701	0	}
702	0	if (*o == '\0')
703	0	return num;
704	0	if (!OBJ_create(o, s, l))
705	0	return num;
706	0	num++;
707	0	}
708	0	}
709
710		int OBJ_create(const char oid, const char sn, const char *ln)
711	0	{
712	0	ASN1_OBJECT *tmpoid = NULL;
713	0	int ok = 0;
714
715		/* Check to see if short or long name already present */
716	0	if ((sn != NULL && OBJ_sn2nid(sn) != NID_undef)
717	0	\|\| (ln != NULL && OBJ_ln2nid(ln) != NID_undef)) {
718	0	OBJerr(OBJ_F_OBJ_CREATE, OBJ_R_OID_EXISTS);
719	0	return 0;
720	0	}
721
722		/* Convert numerical OID string to an ASN1_OBJECT structure */
723	0	tmpoid = OBJ_txt2obj(oid, 1);
724	0	if (tmpoid == NULL)
725	0	return 0;
726
727		/* If NID is not NID_undef then object already exists */
728	0	if (OBJ_obj2nid(tmpoid) != NID_undef) {
729	0	OBJerr(OBJ_F_OBJ_CREATE, OBJ_R_OID_EXISTS);
730	0	goto err;
731	0	}
732
733	0	tmpoid->nid = OBJ_new_nid(1);
734	0	tmpoid->sn = (char *)sn;
735	0	tmpoid->ln = (char *)ln;
736
737	0	ok = OBJ_add_object(tmpoid);
738
739	0	tmpoid->sn = NULL;
740	0	tmpoid->ln = NULL;
741
742	0	err:
743	0	ASN1_OBJECT_free(tmpoid);
744	0	return ok;
745	0	}
746
747		size_t OBJ_length(const ASN1_OBJECT *obj)
748	0	{
749	0	if (obj == NULL)
750	0	return 0;
751	0	return obj->length;
752	0	}
753
754		const unsigned char OBJ_get0_data(const ASN1_OBJECT obj)
755	0	{
756	0	if (obj == NULL)
757	0	return NULL;
758	0	return obj->data;
759	0	}