1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/ssl/libcrypto/src/crypto/asn1/a_d2i_fp.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,260 @@
1.4 +/* crypto/asn1/a_d2i_fp.c */
1.5 +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
1.6 + * All rights reserved.
1.7 + *
1.8 + * This package is an SSL implementation written
1.9 + * by Eric Young (eay@cryptsoft.com).
1.10 + * The implementation was written so as to conform with Netscapes SSL.
1.11 + *
1.12 + * This library is free for commercial and non-commercial use as long as
1.13 + * the following conditions are aheared to. The following conditions
1.14 + * apply to all code found in this distribution, be it the RC4, RSA,
1.15 + * lhash, DES, etc., code; not just the SSL code. The SSL documentation
1.16 + * included with this distribution is covered by the same copyright terms
1.17 + * except that the holder is Tim Hudson (tjh@cryptsoft.com).
1.18 + *
1.19 + * Copyright remains Eric Young's, and as such any Copyright notices in
1.20 + * the code are not to be removed.
1.21 + * If this package is used in a product, Eric Young should be given attribution
1.22 + * as the author of the parts of the library used.
1.23 + * This can be in the form of a textual message at program startup or
1.24 + * in documentation (online or textual) provided with the package.
1.25 + *
1.26 + * Redistribution and use in source and binary forms, with or without
1.27 + * modification, are permitted provided that the following conditions
1.28 + * are met:
1.29 + * 1. Redistributions of source code must retain the copyright
1.30 + * notice, this list of conditions and the following disclaimer.
1.31 + * 2. Redistributions in binary form must reproduce the above copyright
1.32 + * notice, this list of conditions and the following disclaimer in the
1.33 + * documentation and/or other materials provided with the distribution.
1.34 + * 3. All advertising materials mentioning features or use of this software
1.35 + * must display the following acknowledgement:
1.36 + * "This product includes cryptographic software written by
1.37 + * Eric Young (eay@cryptsoft.com)"
1.38 + * The word 'cryptographic' can be left out if the rouines from the library
1.39 + * being used are not cryptographic related :-).
1.40 + * 4. If you include any Windows specific code (or a derivative thereof) from
1.41 + * the apps directory (application code) you must include an acknowledgement:
1.42 + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
1.43 + *
1.44 + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
1.45 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.46 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.47 + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1.48 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.49 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.50 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.51 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.52 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.53 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.54 + * SUCH DAMAGE.
1.55 + *
1.56 + * The licence and distribution terms for any publically available version or
1.57 + * derivative of this code cannot be changed. i.e. this code cannot simply be
1.58 + * copied and put under another distribution licence
1.59 + * [including the GNU Public Licence.]
1.60 + */
1.61 +
1.62 +#include <stdio.h>
1.63 +#include "cryptlib.h"
1.64 +#include <openssl/buffer.h>
1.65 +#include <openssl/asn1_mac.h>
1.66 +
1.67 +static int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb);
1.68 +
1.69 +#ifndef NO_OLD_ASN1
1.70 +#ifndef OPENSSL_NO_FP_API
1.71 +
1.72 +EXPORT_C void *ASN1_d2i_fp(void *(*xnew)(void), d2i_of_void *d2i, FILE *in, void **x)
1.73 + {
1.74 + BIO *b;
1.75 + void *ret;
1.76 +
1.77 + if ((b=BIO_new(BIO_s_file())) == NULL)
1.78 + {
1.79 + ASN1err(ASN1_F_ASN1_D2I_FP,ERR_R_BUF_LIB);
1.80 + return(NULL);
1.81 + }
1.82 + BIO_set_fp(b,in,BIO_NOCLOSE);
1.83 + ret=ASN1_d2i_bio(xnew,d2i,b,x);
1.84 + BIO_free(b);
1.85 + return(ret);
1.86 + }
1.87 +#endif
1.88 +
1.89 +EXPORT_C void *ASN1_d2i_bio(void *(*xnew)(void), d2i_of_void *d2i, BIO *in, void **x)
1.90 + {
1.91 + BUF_MEM *b = NULL;
1.92 + const unsigned char *p;
1.93 + void *ret=NULL;
1.94 + int len;
1.95 +
1.96 + len = asn1_d2i_read_bio(in, &b);
1.97 + if(len < 0) goto err;
1.98 +
1.99 + p=(unsigned char *)b->data;
1.100 + ret=d2i(x,&p,len);
1.101 +err:
1.102 + if (b != NULL) BUF_MEM_free(b);
1.103 + return(ret);
1.104 + }
1.105 +
1.106 +#endif
1.107 +
1.108 +EXPORT_C void *ASN1_item_d2i_bio(const ASN1_ITEM *it, BIO *in, void *x)
1.109 + {
1.110 + BUF_MEM *b = NULL;
1.111 + const unsigned char *p;
1.112 + void *ret=NULL;
1.113 + int len;
1.114 +
1.115 + len = asn1_d2i_read_bio(in, &b);
1.116 + if(len < 0) goto err;
1.117 +
1.118 + p=(const unsigned char *)b->data;
1.119 + ret=ASN1_item_d2i(x,&p,len, it);
1.120 +err:
1.121 + if (b != NULL) BUF_MEM_free(b);
1.122 + return(ret);
1.123 + }
1.124 +
1.125 +#ifndef OPENSSL_NO_FP_API
1.126 +EXPORT_C void *ASN1_item_d2i_fp(const ASN1_ITEM *it, FILE *in, void *x)
1.127 + {
1.128 + BIO *b;
1.129 + char *ret;
1.130 +
1.131 + if ((b=BIO_new(BIO_s_file())) == NULL)
1.132 + {
1.133 + ASN1err(ASN1_F_ASN1_ITEM_D2I_FP,ERR_R_BUF_LIB);
1.134 + return(NULL);
1.135 + }
1.136 + BIO_set_fp(b,in,BIO_NOCLOSE);
1.137 + ret=ASN1_item_d2i_bio(it,b,x);
1.138 + BIO_free(b);
1.139 + return(ret);
1.140 + }
1.141 +#endif
1.142 +
1.143 +#define HEADER_SIZE 8
1.144 +static int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb)
1.145 + {
1.146 + BUF_MEM *b;
1.147 + unsigned char *p;
1.148 + int i;
1.149 + int ret=-1;
1.150 + ASN1_const_CTX c;
1.151 + int want=HEADER_SIZE;
1.152 + int eos=0;
1.153 +#if defined(__GNUC__) && defined(__ia64)
1.154 + /* pathetic compiler bug in all known versions as of Nov. 2002 */
1.155 + long off=0;
1.156 +#else
1.157 + int off=0;
1.158 +#endif
1.159 + int len=0;
1.160 +
1.161 + b=BUF_MEM_new();
1.162 + if (b == NULL)
1.163 + {
1.164 + ASN1err(ASN1_F_ASN1_D2I_READ_BIO,ERR_R_MALLOC_FAILURE);
1.165 + return -1;
1.166 + }
1.167 +
1.168 + ERR_clear_error();
1.169 + for (;;)
1.170 + {
1.171 + if (want >= (len-off))
1.172 + {
1.173 + want-=(len-off);
1.174 +
1.175 + if (!BUF_MEM_grow_clean(b,len+want))
1.176 + {
1.177 + ASN1err(ASN1_F_ASN1_D2I_READ_BIO,ERR_R_MALLOC_FAILURE);
1.178 + goto err;
1.179 + }
1.180 + i=BIO_read(in,&(b->data[len]),want);
1.181 + if ((i < 0) && ((len-off) == 0))
1.182 + {
1.183 + ASN1err(ASN1_F_ASN1_D2I_READ_BIO,ASN1_R_NOT_ENOUGH_DATA);
1.184 + goto err;
1.185 + }
1.186 + if (i > 0)
1.187 + len+=i;
1.188 + }
1.189 + /* else data already loaded */
1.190 +
1.191 + p=(unsigned char *)&(b->data[off]);
1.192 + c.p=p;
1.193 + c.inf=ASN1_get_object(&(c.p),&(c.slen),&(c.tag),&(c.xclass),
1.194 + len-off);
1.195 + if (c.inf & 0x80)
1.196 + {
1.197 + unsigned long e;
1.198 +
1.199 + e=ERR_GET_REASON(ERR_peek_error());
1.200 + if (e != ASN1_R_TOO_LONG)
1.201 + goto err;
1.202 + else
1.203 + ERR_clear_error(); /* clear error */
1.204 + }
1.205 + i=c.p-p;/* header length */
1.206 + off+=i; /* end of data */
1.207 +
1.208 + if (c.inf & 1)
1.209 + {
1.210 + /* no data body so go round again */
1.211 + eos++;
1.212 + want=HEADER_SIZE;
1.213 + }
1.214 + else if (eos && (c.slen == 0) && (c.tag == V_ASN1_EOC))
1.215 + {
1.216 + /* eos value, so go back and read another header */
1.217 + eos--;
1.218 + if (eos <= 0)
1.219 + break;
1.220 + else
1.221 + want=HEADER_SIZE;
1.222 + }
1.223 + else
1.224 + {
1.225 + /* suck in c.slen bytes of data */
1.226 + want=(int)c.slen;
1.227 + if (want > (len-off))
1.228 + {
1.229 + want-=(len-off);
1.230 + if (!BUF_MEM_grow_clean(b,len+want))
1.231 + {
1.232 + ASN1err(ASN1_F_ASN1_D2I_READ_BIO,ERR_R_MALLOC_FAILURE);
1.233 + goto err;
1.234 + }
1.235 + while (want > 0)
1.236 + {
1.237 + i=BIO_read(in,&(b->data[len]),want);
1.238 + if (i <= 0)
1.239 + {
1.240 + ASN1err(ASN1_F_ASN1_D2I_READ_BIO,
1.241 + ASN1_R_NOT_ENOUGH_DATA);
1.242 + goto err;
1.243 + }
1.244 + len+=i;
1.245 + want -= i;
1.246 + }
1.247 + }
1.248 + off+=(int)c.slen;
1.249 + if (eos <= 0)
1.250 + {
1.251 + break;
1.252 + }
1.253 + else
1.254 + want=HEADER_SIZE;
1.255 + }
1.256 + }
1.257 +
1.258 + *pb = b;
1.259 + return off;
1.260 +err:
1.261 + if (b != NULL) BUF_MEM_free(b);
1.262 + return(ret);
1.263 + }