--- /dev/null
+/* 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>
+#include <openssl/bn.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 - 80) / 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);
+ return(NULL);
+}
+
+ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
+ long len)
+ {
+ ASN1_OBJECT *ret=NULL;
+ const unsigned char *p;
+ unsigned char *data;
+ int i, length;
+
+ /* Sanity check OID encoding.
+ * Need at least one content octet.
+ * MSB must be clear in the last octet.
+ * can't have leading 0x80 in subidentifiers, see: X.690 8.19.2
+ */
+ if (len <= 0 || len > INT_MAX || pp == NULL || (p = *pp) == NULL ||
+ p[len - 1] & 0x80)
+ {
+ ASN1err(ASN1_F_C2I_ASN1_OBJECT,ASN1_R_INVALID_OBJECT_ENCODING);
+ return NULL;
+ }
+ /* Now 0 < len <= INT_MAX, so the cast is safe. */
+ length = (int)len;
+ for (i = 0; i < length; i++, p++)
+ {
+ if (*p == 0x80 && (!i || !(p[-1] & 0x80)))
+ {
+ ASN1err(ASN1_F_C2I_ASN1_OBJECT,ASN1_R_INVALID_OBJECT_ENCODING);
+ return NULL;
+ }
+ }
+
+ /* 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;
+ /* detach data from object */
+ data = (unsigned char *)ret->data;
+ ret->data = NULL;
+ /* once detached we can change it */
+ if ((data == NULL) || (ret->length < length))
+ {
+ ret->length=0;
+ if (data != NULL) OPENSSL_free(data);
+ data=(unsigned char *)OPENSSL_malloc(length);
+ if (data == NULL)
+ { i=ERR_R_MALLOC_FAILURE; goto err; }
+ ret->flags|=ASN1_OBJECT_FLAG_DYNAMIC_DATA;
+ }
+ memcpy(data,p,length);
+ /* reattach data to object, after which it remains const */
+ ret->data =data;
+ ret->length=length;
+ ret->sn=NULL;
+ ret->ln=NULL;
+ /* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */
+ p+=length;
+
+ 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((void *)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)
projects / cassiopeia.git / blobdiff