+++ /dev/null
-/* crypto/asn1/a_d2i_fp.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/buffer.h>
-#include <openssl/asn1_mac.h>
-
-static int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb);
-
-#ifndef NO_OLD_ASN1
-#ifndef OPENSSL_NO_FP_API
-
-char *ASN1_d2i_fp(char *(*xnew)(), char *(*d2i)(), FILE *in,
- unsigned char **x)
- {
- BIO *b;
- char *ret;
-
- if ((b=BIO_new(BIO_s_file())) == NULL)
- {
- ASN1err(ASN1_F_ASN1_D2I_FP,ERR_R_BUF_LIB);
- return(NULL);
- }
- BIO_set_fp(b,in,BIO_NOCLOSE);
- ret=ASN1_d2i_bio(xnew,d2i,b,x);
- BIO_free(b);
- return(ret);
- }
-#endif
-
-char *ASN1_d2i_bio(char *(*xnew)(), char *(*d2i)(), BIO *in,
- unsigned char **x)
- {
- BUF_MEM *b = NULL;
- unsigned char *p;
- char *ret=NULL;
- int len;
-
- len = asn1_d2i_read_bio(in, &b);
- if(len < 0) goto err;
-
- p=(unsigned char *)b->data;
- ret=d2i(x,&p,len);
-err:
- if (b != NULL) BUF_MEM_free(b);
- return(ret);
- }
-
-#endif
-
-void *ASN1_item_d2i_bio(const ASN1_ITEM *it, BIO *in, void *x)
- {
- BUF_MEM *b = NULL;
- unsigned char *p;
- void *ret=NULL;
- int len;
-
- len = asn1_d2i_read_bio(in, &b);
- if(len < 0) goto err;
-
- p=(unsigned char *)b->data;
- ret=ASN1_item_d2i(x,&p,len, it);
-err:
- if (b != NULL) BUF_MEM_free(b);
- return(ret);
- }
-
-#ifndef OPENSSL_NO_FP_API
-void *ASN1_item_d2i_fp(const ASN1_ITEM *it, FILE *in, void *x)
- {
- BIO *b;
- char *ret;
-
- if ((b=BIO_new(BIO_s_file())) == NULL)
- {
- ASN1err(ASN1_F_ASN1_D2I_FP,ERR_R_BUF_LIB);
- return(NULL);
- }
- BIO_set_fp(b,in,BIO_NOCLOSE);
- ret=ASN1_item_d2i_bio(it,b,x);
- BIO_free(b);
- return(ret);
- }
-#endif
-
-#define HEADER_SIZE 8
-static int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb)
- {
- BUF_MEM *b;
- unsigned char *p;
- int i;
- int ret=-1;
- ASN1_CTX c;
- int want=HEADER_SIZE;
- int eos=0;
-#if defined(__GNUC__) && defined(__ia64)
- /* pathetic compiler bug in all known versions as of Nov. 2002 */
- long off=0;
-#else
- int off=0;
-#endif
- int len=0;
-
- b=BUF_MEM_new();
- if (b == NULL)
- {
- ASN1err(ASN1_F_ASN1_D2I_BIO,ERR_R_MALLOC_FAILURE);
- return -1;
- }
-
- ERR_clear_error();
- for (;;)
- {
- if (want >= (len-off))
- {
- want-=(len-off);
-
- if (!BUF_MEM_grow_clean(b,len+want))
- {
- ASN1err(ASN1_F_ASN1_D2I_BIO,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- i=BIO_read(in,&(b->data[len]),want);
- if ((i < 0) && ((len-off) == 0))
- {
- ASN1err(ASN1_F_ASN1_D2I_BIO,ASN1_R_NOT_ENOUGH_DATA);
- goto err;
- }
- if (i > 0)
- len+=i;
- }
- /* else data already loaded */
-
- p=(unsigned char *)&(b->data[off]);
- c.p=p;
- c.inf=ASN1_get_object(&(c.p),&(c.slen),&(c.tag),&(c.xclass),
- len-off);
- if (c.inf & 0x80)
- {
- unsigned long e;
-
- e=ERR_GET_REASON(ERR_peek_error());
- if (e != ASN1_R_TOO_LONG)
- goto err;
- else
- ERR_get_error(); /* clear error */
- }
- i=c.p-p;/* header length */
- off+=i; /* end of data */
-
- if (c.inf & 1)
- {
- /* no data body so go round again */
- eos++;
- want=HEADER_SIZE;
- }
- else if (eos && (c.slen == 0) && (c.tag == V_ASN1_EOC))
- {
- /* eos value, so go back and read another header */
- eos--;
- if (eos <= 0)
- break;
- else
- want=HEADER_SIZE;
- }
- else
- {
- /* suck in c.slen bytes of data */
- want=(int)c.slen;
- if (want > (len-off))
- {
- want-=(len-off);
- if (!BUF_MEM_grow_clean(b,len+want))
- {
- ASN1err(ASN1_F_ASN1_D2I_BIO,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- while (want > 0)
- {
- i=BIO_read(in,&(b->data[len]),want);
- if (i <= 0)
- {
- ASN1err(ASN1_F_ASN1_D2I_BIO,
- ASN1_R_NOT_ENOUGH_DATA);
- goto err;
- }
- len+=i;
- want -= i;
- }
- }
- off+=(int)c.slen;
- if (eos <= 0)
- {
- break;
- }
- else
- want=HEADER_SIZE;
- }
- }
-
- *pb = b;
- return off;
-err:
- if (b != NULL) BUF_MEM_free(b);
- return(ret);
- }
projects / bcm963xx.git / blobdiff