diff options
Diffstat (limited to 'openssl/crypto/bio/bss_null.c')
| -rw-r--r-- | openssl/crypto/bio/bss_null.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/openssl/crypto/bio/bss_null.c b/openssl/crypto/bio/bss_null.c new file mode 100644 index 000000000..46b73339d --- /dev/null +++ b/openssl/crypto/bio/bss_null.c @@ -0,0 +1,150 @@ +/* crypto/bio/bss_null.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 <errno.h> +#include "cryptlib.h" +#include <openssl/bio.h> + +static int null_write(BIO *h, const char *buf, int num); +static int null_read(BIO *h, char *buf, int size); +static int null_puts(BIO *h, const char *str); +static int null_gets(BIO *h, char *str, int size); +static long null_ctrl(BIO *h, int cmd, long arg1, void *arg2); +static int null_new(BIO *h); +static int null_free(BIO *data); +static BIO_METHOD null_method= + { + BIO_TYPE_NULL, + "NULL", + null_write, + null_read, + null_puts, + null_gets, + null_ctrl, + null_new, + null_free, + NULL, + }; + +BIO_METHOD *BIO_s_null(void) + { + return(&null_method); + } + +static int null_new(BIO *bi) + { + bi->init=1; + bi->num=0; + bi->ptr=(NULL); + return(1); + } + +static int null_free(BIO *a) + { + if (a == NULL) return(0); + return(1); + } + +static int null_read(BIO *b, char *out, int outl) + { + return(0); + } + +static int null_write(BIO *b, const char *in, int inl) + { + return(inl); + } + +static long null_ctrl(BIO *b, int cmd, long num, void *ptr) + { + long ret=1; + + switch (cmd) + { + case BIO_CTRL_RESET: + case BIO_CTRL_EOF: + case BIO_CTRL_SET: + case BIO_CTRL_SET_CLOSE: + case BIO_CTRL_FLUSH: + case BIO_CTRL_DUP: + ret=1; + break; + case BIO_CTRL_GET_CLOSE: + case BIO_CTRL_INFO: + case BIO_CTRL_GET: + case BIO_CTRL_PENDING: + case BIO_CTRL_WPENDING: + default: + ret=0; + break; + } + return(ret); + } + +static int null_gets(BIO *bp, char *buf, int size) + { + return(0); + } + +static int null_puts(BIO *bp, const char *str) + { + if (str == NULL) return(0); + return(strlen(str)); + } + |