1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/ssl/libcrypto/src/crypto/bio/bf_null.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,183 @@
1.4 +/* crypto/bio/bf_null.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 <errno.h>
1.64 +#include "cryptlib.h"
1.65 +#include <openssl/bio.h>
1.66 +
1.67 +/* BIO_put and BIO_get both add to the digest,
1.68 + * BIO_gets returns the digest */
1.69 +
1.70 +static int nullf_write(BIO *h, const char *buf, int num);
1.71 +static int nullf_read(BIO *h, char *buf, int size);
1.72 +static int nullf_puts(BIO *h, const char *str);
1.73 +static int nullf_gets(BIO *h, char *str, int size);
1.74 +static long nullf_ctrl(BIO *h, int cmd, long arg1, void *arg2);
1.75 +static int nullf_new(BIO *h);
1.76 +static int nullf_free(BIO *data);
1.77 +static long nullf_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp);
1.78 +static BIO_METHOD methods_nullf=
1.79 + {
1.80 + BIO_TYPE_NULL_FILTER,
1.81 + "NULL filter",
1.82 + nullf_write,
1.83 + nullf_read,
1.84 + nullf_puts,
1.85 + nullf_gets,
1.86 + nullf_ctrl,
1.87 + nullf_new,
1.88 + nullf_free,
1.89 + nullf_callback_ctrl,
1.90 + };
1.91 +
1.92 +EXPORT_C BIO_METHOD *BIO_f_null(void)
1.93 + {
1.94 + return(&methods_nullf);
1.95 + }
1.96 +
1.97 +static int nullf_new(BIO *bi)
1.98 + {
1.99 + bi->init=1;
1.100 + bi->ptr=NULL;
1.101 + bi->flags=0;
1.102 + return(1);
1.103 + }
1.104 +
1.105 +static int nullf_free(BIO *a)
1.106 + {
1.107 + if (a == NULL) return(0);
1.108 +/* a->ptr=NULL;
1.109 + a->init=0;
1.110 + a->flags=0;*/
1.111 + return(1);
1.112 + }
1.113 +
1.114 +static int nullf_read(BIO *b, char *out, int outl)
1.115 + {
1.116 + int ret=0;
1.117 +
1.118 + if (out == NULL) return(0);
1.119 + if (b->next_bio == NULL) return(0);
1.120 + ret=BIO_read(b->next_bio,out,outl);
1.121 + BIO_clear_retry_flags(b);
1.122 + BIO_copy_next_retry(b);
1.123 + return(ret);
1.124 + }
1.125 +
1.126 +static int nullf_write(BIO *b, const char *in, int inl)
1.127 + {
1.128 + int ret=0;
1.129 +
1.130 + if ((in == NULL) || (inl <= 0)) return(0);
1.131 + if (b->next_bio == NULL) return(0);
1.132 + ret=BIO_write(b->next_bio,in,inl);
1.133 + BIO_clear_retry_flags(b);
1.134 + BIO_copy_next_retry(b);
1.135 + return(ret);
1.136 + }
1.137 +
1.138 +static long nullf_ctrl(BIO *b, int cmd, long num, void *ptr)
1.139 + {
1.140 + long ret;
1.141 +
1.142 + if (b->next_bio == NULL) return(0);
1.143 + switch(cmd)
1.144 + {
1.145 + case BIO_C_DO_STATE_MACHINE:
1.146 + BIO_clear_retry_flags(b);
1.147 + ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
1.148 + BIO_copy_next_retry(b);
1.149 + break;
1.150 + case BIO_CTRL_DUP:
1.151 + ret=0L;
1.152 + break;
1.153 + default:
1.154 + ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
1.155 + }
1.156 + return(ret);
1.157 + }
1.158 +
1.159 +static long nullf_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
1.160 + {
1.161 + long ret=1;
1.162 +
1.163 + if (b->next_bio == NULL) return(0);
1.164 + switch (cmd)
1.165 + {
1.166 + default:
1.167 + ret=BIO_callback_ctrl(b->next_bio,cmd,fp);
1.168 + break;
1.169 + }
1.170 + return(ret);
1.171 + }
1.172 +
1.173 +static int nullf_gets(BIO *bp, char *buf, int size)
1.174 + {
1.175 + if (bp->next_bio == NULL) return(0);
1.176 + return(BIO_gets(bp->next_bio,buf,size));
1.177 + }
1.178 +
1.179 +
1.180 +static int nullf_puts(BIO *bp, const char *str)
1.181 + {
1.182 + if (bp->next_bio == NULL) return(0);
1.183 + return(BIO_puts(bp->next_bio,str));
1.184 + }
1.185 +
1.186 +