a_object.c
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- /* crypto/asn1/a_object.c */
- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
- #include <stdio.h>
- #include <limits.h>
- #include "cryptlib.h"
- #include <openssl/buffer.h>
- #include <openssl/asn1.h>
- #include <openssl/objects.h>
- int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp)
- {
- unsigned char *p;
- int objsize;
- if ((a == NULL) || (a->data == NULL)) return(0);
- objsize = ASN1_object_size(0,a->length,V_ASN1_OBJECT);
- if (pp == NULL) return objsize;
- p= *pp;
- ASN1_put_object(&p,0,a->length,V_ASN1_OBJECT,V_ASN1_UNIVERSAL);
- memcpy(p,a->data,a->length);
- p+=a->length;
- *pp=p;
- return(objsize);
- }
- int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num)
- {
- int i,first,len=0,c, use_bn;
- char ftmp[24], *tmp = ftmp;
- int tmpsize = sizeof ftmp;
- const char *p;
- unsigned long l;
- BIGNUM *bl = NULL;
- if (num == 0)
- return(0);
- else if (num == -1)
- num=strlen(buf);
- p=buf;
- c= *(p++);
- num--;
- if ((c >= '0') && (c <= '2'))
- {
- first= c-'0';
- }
- else
- {
- ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_FIRST_NUM_TOO_LARGE);
- goto err;
- }
- if (num <= 0)
- {
- ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_MISSING_SECOND_NUMBER);
- goto err;
- }
- c= *(p++);
- num--;
- for (;;)
- {
- if (num <= 0) break;
- if ((c != '.') && (c != ' '))
- {
- ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_SEPARATOR);
- goto err;
- }
- l=0;
- use_bn = 0;
- for (;;)
- {
- if (num <= 0) break;
- num--;
- c= *(p++);
- if ((c == ' ') || (c == '.'))
- break;
- if ((c < '0') || (c > '9'))
- {
- ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_DIGIT);
- goto err;
- }
- if (!use_bn && l > (ULONG_MAX / 10L))
- {
- use_bn = 1;
- if (!bl)
- bl = BN_new();
- if (!bl || !BN_set_word(bl, l))
- goto err;
- }
- if (use_bn)
- {
- if (!BN_mul_word(bl, 10L)
- || !BN_add_word(bl, c-'0'))
- goto err;
- }
- else
- l=l*10L+(long)(c-'0');
- }
- if (len == 0)
- {
- if ((first < 2) && (l >= 40))
- {
- ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_SECOND_NUMBER_TOO_LARGE);
- goto err;
- }
- if (use_bn)
- {
- if (!BN_add_word(bl, first * 40))
- goto err;
- }
- else
- l+=(long)first*40;
- }
- i=0;
- if (use_bn)
- {
- int blsize;
- blsize = BN_num_bits(bl);
- blsize = (blsize + 6)/7;
- if (blsize > tmpsize)
- {
- if (tmp != ftmp)
- OPENSSL_free(tmp);
- tmpsize = blsize + 32;
- tmp = OPENSSL_malloc(tmpsize);
- if (!tmp)
- goto err;
- }
- while(blsize--)
- tmp[i++] = (unsigned char)BN_div_word(bl, 0x80L);
- }
- else
- {
-
- for (;;)
- {
- tmp[i++]=(unsigned char)l&0x7f;
- l>>=7L;
- if (l == 0L) break;
- }
- }
- if (out != NULL)
- {
- if (len+i > olen)
- {
- ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_BUFFER_TOO_SMALL);
- goto err;
- }
- while (--i > 0)
- out[len++]=tmp[i]|0x80;
- out[len++]=tmp[0];
- }
- else
- len+=i;
- }
- if (tmp != ftmp)
- OPENSSL_free(tmp);
- if (bl)
- BN_free(bl);
- return(len);
- err:
- if (tmp != ftmp)
- OPENSSL_free(tmp);
- if (bl)
- BN_free(bl);
- return(0);
- }
- int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a)
- {
- return OBJ_obj2txt(buf, buf_len, a, 0);
- }
- int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)
- {
- char buf[80], *p = buf;
- int i;
- if ((a == NULL) || (a->data == NULL))
- return(BIO_write(bp,"NULL",4));
- i=i2t_ASN1_OBJECT(buf,sizeof buf,a);
- if (i > (int)(sizeof(buf) - 1))
- {
- p = OPENSSL_malloc(i + 1);
- if (!p)
- return -1;
- i2t_ASN1_OBJECT(p,i + 1,a);
- }
- if (i <= 0)
- return BIO_write(bp, "<INVALID>", 9);
- BIO_write(bp,p,i);
- if (p != buf)
- OPENSSL_free(p);
- return(i);
- }
- ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
- long length)
- {
- const unsigned char *p;
- long len;
- int tag,xclass;
- int inf,i;
- ASN1_OBJECT *ret = NULL;
- p= *pp;
- inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
- if (inf & 0x80)
- {
- i=ASN1_R_BAD_OBJECT_HEADER;
- goto err;
- }
- if (tag != V_ASN1_OBJECT)
- {
- i=ASN1_R_EXPECTING_AN_OBJECT;
- goto err;
- }
- ret = c2i_ASN1_OBJECT(a, &p, len);
- if(ret) *pp = p;
- return ret;
- err:
- ASN1err(ASN1_F_D2I_ASN1_OBJECT,i);
- if ((ret != NULL) && ((a == NULL) || (*a != ret)))
- ASN1_OBJECT_free(ret);
- return(NULL);
- }
- ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
- long len)
- {
- ASN1_OBJECT *ret=NULL;
- const unsigned char *p;
- int i;
- /* only the ASN1_OBJECTs from the 'table' will have values
- * for ->sn or ->ln */
- if ((a == NULL) || ((*a) == NULL) ||
- !((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC))
- {
- if ((ret=ASN1_OBJECT_new()) == NULL) return(NULL);
- }
- else ret=(*a);
- p= *pp;
- if ((ret->data == NULL) || (ret->length < len))
- {
- if (ret->data != NULL) OPENSSL_free(ret->data);
- ret->data=(unsigned char *)OPENSSL_malloc(len ? (int)len : 1);
- ret->flags|=ASN1_OBJECT_FLAG_DYNAMIC_DATA;
- if (ret->data == NULL)
- { i=ERR_R_MALLOC_FAILURE; goto err; }
- }
- memcpy(ret->data,p,(int)len);
- ret->length=(int)len;
- ret->sn=NULL;
- ret->ln=NULL;
- /* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */
- p+=len;
- if (a != NULL) (*a)=ret;
- *pp=p;
- return(ret);
- err:
- ASN1err(ASN1_F_C2I_ASN1_OBJECT,i);
- if ((ret != NULL) && ((a == NULL) || (*a != ret)))
- ASN1_OBJECT_free(ret);
- return(NULL);
- }
- ASN1_OBJECT *ASN1_OBJECT_new(void)
- {
- ASN1_OBJECT *ret;
- ret=(ASN1_OBJECT *)OPENSSL_malloc(sizeof(ASN1_OBJECT));
- if (ret == NULL)
- {
- ASN1err(ASN1_F_ASN1_OBJECT_NEW,ERR_R_MALLOC_FAILURE);
- return(NULL);
- }
- ret->length=0;
- ret->data=NULL;
- ret->nid=0;
- ret->sn=NULL;
- ret->ln=NULL;
- ret->flags=ASN1_OBJECT_FLAG_DYNAMIC;
- return(ret);
- }
- void ASN1_OBJECT_free(ASN1_OBJECT *a)
- {
- if (a == NULL) return;
- if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS)
- {
- #ifndef CONST_STRICT /* disable purely for compile-time strict const checking. Doing this on a "real" compile will cause memory leaks */
- if (a->sn != NULL) OPENSSL_free((void *)a->sn);
- if (a->ln != NULL) OPENSSL_free((void *)a->ln);
- #endif
- a->sn=a->ln=NULL;
- }
- if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA)
- {
- if (a->data != NULL) OPENSSL_free(a->data);
- a->data=NULL;
- a->length=0;
- }
- if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)
- OPENSSL_free(a);
- }
- ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len,
- const char *sn, const char *ln)
- {
- ASN1_OBJECT o;
- o.sn=sn;
- o.ln=ln;
- o.data=data;
- o.nid=nid;
- o.length=len;
- o.flags=ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
- ASN1_OBJECT_FLAG_DYNAMIC_DATA;
- return(OBJ_dup(&o));
- }
- IMPLEMENT_STACK_OF(ASN1_OBJECT)
- IMPLEMENT_ASN1_SET_OF(ASN1_OBJECT)