+++ /dev/null
-/* crypto/asn1/a_bytes.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 "cryptlib.h"
-#include <openssl/asn1.h>
-
-static int asn1_collate_primitive(ASN1_STRING *a, ASN1_const_CTX *c);
-/* type is a 'bitmap' of acceptable string types.
- */
-ASN1_STRING *d2i_ASN1_type_bytes(ASN1_STRING **a, const unsigned char **pp,
- long length, int type)
- {
- ASN1_STRING *ret=NULL;
- const unsigned char *p;
- unsigned char *s;
- long len;
- int inf,tag,xclass;
- int i=0;
-
- p= *pp;
- inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
- if (inf & 0x80) goto err;
-
- if (tag >= 32)
- {
- i=ASN1_R_TAG_VALUE_TOO_HIGH;
- goto err;
- }
- if (!(ASN1_tag2bit(tag) & type))
- {
- i=ASN1_R_WRONG_TYPE;
- goto err;
- }
-
- /* If a bit-string, exit early */
- if (tag == V_ASN1_BIT_STRING)
- return(d2i_ASN1_BIT_STRING(a,pp,length));
-
- if ((a == NULL) || ((*a) == NULL))
- {
- if ((ret=ASN1_STRING_new()) == NULL) return(NULL);
- }
- else
- ret=(*a);
-
- if (len != 0)
- {
- s=(unsigned char *)OPENSSL_malloc((int)len+1);
- if (s == NULL)
- {
- i=ERR_R_MALLOC_FAILURE;
- goto err;
- }
- memcpy(s,p,(int)len);
- s[len]='\0';
- p+=len;
- }
- else
- s=NULL;
-
- if (ret->data != NULL) OPENSSL_free(ret->data);
- ret->length=(int)len;
- ret->data=s;
- ret->type=tag;
- if (a != NULL) (*a)=ret;
- *pp=p;
- return(ret);
-err:
- ASN1err(ASN1_F_D2I_ASN1_TYPE_BYTES,i);
- if ((ret != NULL) && ((a == NULL) || (*a != ret)))
- ASN1_STRING_free(ret);
- return(NULL);
- }
-
-int i2d_ASN1_bytes(ASN1_STRING *a, unsigned char **pp, int tag, int xclass)
- {
- int ret,r,constructed;
- unsigned char *p;
-
- if (a == NULL) return(0);
-
- if (tag == V_ASN1_BIT_STRING)
- return(i2d_ASN1_BIT_STRING(a,pp));
-
- ret=a->length;
- r=ASN1_object_size(0,ret,tag);
- if (pp == NULL) return(r);
- p= *pp;
-
- if ((tag == V_ASN1_SEQUENCE) || (tag == V_ASN1_SET))
- constructed=1;
- else
- constructed=0;
- ASN1_put_object(&p,constructed,ret,tag,xclass);
- memcpy(p,a->data,a->length);
- p+=a->length;
- *pp= p;
- return(r);
- }
-
-ASN1_STRING *d2i_ASN1_bytes(ASN1_STRING **a, const unsigned char **pp,
- long length, int Ptag, int Pclass)
- {
- ASN1_STRING *ret=NULL;
- const unsigned char *p;
- unsigned char *s;
- long len;
- int inf,tag,xclass;
- int i=0;
-
- if ((a == NULL) || ((*a) == NULL))
- {
- if ((ret=ASN1_STRING_new()) == NULL) return(NULL);
- }
- else
- ret=(*a);
-
- p= *pp;
- inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
- if (inf & 0x80)
- {
- i=ASN1_R_BAD_OBJECT_HEADER;
- goto err;
- }
-
- if (tag != Ptag)
- {
- i=ASN1_R_WRONG_TAG;
- goto err;
- }
-
- if (inf & V_ASN1_CONSTRUCTED)
- {
- ASN1_const_CTX c;
-
- c.pp=pp;
- c.p=p;
- c.inf=inf;
- c.slen=len;
- c.tag=Ptag;
- c.xclass=Pclass;
- c.max=(length == 0)?0:(p+length);
- if (!asn1_collate_primitive(ret,&c))
- goto err;
- else
- {
- p=c.p;
- }
- }
- else
- {
- if (len != 0)
- {
- if ((ret->length < len) || (ret->data == NULL))
- {
- if (ret->data != NULL) OPENSSL_free(ret->data);
- s=(unsigned char *)OPENSSL_malloc((int)len + 1);
- if (s == NULL)
- {
- i=ERR_R_MALLOC_FAILURE;
- goto err;
- }
- }
- else
- s=ret->data;
- memcpy(s,p,(int)len);
- s[len] = '\0';
- p+=len;
- }
- else
- {
- s=NULL;
- if (ret->data != NULL) OPENSSL_free(ret->data);
- }
-
- ret->length=(int)len;
- ret->data=s;
- ret->type=Ptag;
- }
-
- if (a != NULL) (*a)=ret;
- *pp=p;
- return(ret);
-err:
- if ((ret != NULL) && ((a == NULL) || (*a != ret)))
- ASN1_STRING_free(ret);
- ASN1err(ASN1_F_D2I_ASN1_BYTES,i);
- return(NULL);
- }
-
-
-/* We are about to parse 0..n d2i_ASN1_bytes objects, we are to collapse
- * them into the one structure that is then returned */
-/* There have been a few bug fixes for this function from
- * Paul Keogh <paul.keogh@sse.ie>, many thanks to him */
-static int asn1_collate_primitive(ASN1_STRING *a, ASN1_const_CTX *c)
- {
- ASN1_STRING *os=NULL;
- BUF_MEM b;
- int num;
-
- b.length=0;
- b.max=0;
- b.data=NULL;
-
- if (a == NULL)
- {
- c->error=ERR_R_PASSED_NULL_PARAMETER;
- goto err;
- }
-
- num=0;
- for (;;)
- {
- if (c->inf & 1)
- {
- c->eos=ASN1_const_check_infinite_end(&c->p,
- (long)(c->max-c->p));
- if (c->eos) break;
- }
- else
- {
- if (c->slen <= 0) break;
- }
-
- c->q=c->p;
- if (d2i_ASN1_bytes(&os,&c->p,c->max-c->p,c->tag,c->xclass)
- == NULL)
- {
- c->error=ERR_R_ASN1_LIB;
- goto err;
- }
-
- if (!BUF_MEM_grow_clean(&b,num+os->length))
- {
- c->error=ERR_R_BUF_LIB;
- goto err;
- }
- memcpy(&(b.data[num]),os->data,os->length);
- if (!(c->inf & 1))
- c->slen-=(c->p-c->q);
- num+=os->length;
- }
-
- if (!asn1_const_Finish(c)) goto err;
-
- a->length=num;
- if (a->data != NULL) OPENSSL_free(a->data);
- a->data=(unsigned char *)b.data;
- if (os != NULL) ASN1_STRING_free(os);
- return(1);
-err:
- ASN1err(ASN1_F_ASN1_COLLATE_PRIMITIVE,c->error);
- if (os != NULL) ASN1_STRING_free(os);
- if (b.data != NULL) OPENSSL_free(b.data);
- return(0);
- }
-
projects / cassiopeia.git / blobdiff