| /* 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 <openssl/buf.h> |
| #include <openssl/evp.h> |
| |
| #include "ssl_locl.h" |
| |
| |
| int ssl23_write_bytes(SSL *s) |
| { |
| int i,num,tot; |
| char *buf; |
| |
| buf=s->init_buf->data; |
| tot=s->init_off; |
| num=s->init_num; |
| for (;;) |
| { |
| s->rwstate=SSL_WRITING; |
| i=BIO_write(s->wbio,&(buf[tot]),num); |
| if (i <= 0) |
| { |
| s->init_off=tot; |
| s->init_num=num; |
| return(i); |
| } |
| s->rwstate=SSL_NOTHING; |
| if (i == num) return(tot+i); |
| |
| num-=i; |
| tot+=i; |
| } |
| } |
| |
| /* return regularly only when we have read (at least) 'n' bytes */ |
| int ssl23_read_bytes(SSL *s, int n) |
| { |
| unsigned char *p; |
| int j; |
| |
| if (s->packet_length < (unsigned int)n) |
| { |
| p=s->packet; |
| |
| for (;;) |
| { |
| s->rwstate=SSL_READING; |
| j=BIO_read(s->rbio,(char *)&(p[s->packet_length]), |
| n-s->packet_length); |
| if (j <= 0) |
| return(j); |
| s->rwstate=SSL_NOTHING; |
| s->packet_length+=j; |
| if (s->packet_length >= (unsigned int)n) |
| return(s->packet_length); |
| } |
| } |
| return(n); |
| } |
| |