+++ /dev/null
-/* crypto/bio/bss_rtcp.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.]
- */
-
-/* Written by David L. Jones <jonesd@kcgl1.eng.ohio-state.edu>
- * Date: 22-JUL-1996
- * Revised: 25-SEP-1997 Update for 0.8.1, BIO_CTRL_SET -> BIO_C_SET_FD
- */
-/* VMS */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include "cryptlib.h"
-#include <openssl/bio.h>
-
-#include <iodef.h> /* VMS IO$_ definitions */
-#include <starlet.h>
-
-typedef unsigned short io_channel;
-/*************************************************************************/
-struct io_status { short status, count; long flags; };
-
-struct rpc_msg { /* Should have member alignment inhibited */
- char channel; /* 'A'-app data. 'R'-remote client 'G'-global */
- char function; /* 'G'-get, 'P'-put, 'C'-confirm, 'X'-close */
- unsigned short int length; /* Amount of data returned or max to return */
- char data[4092]; /* variable data */
-};
-#define RPC_HDR_SIZE (sizeof(struct rpc_msg) - 4092)
-
-struct rpc_ctx {
- int filled, pos;
- struct rpc_msg msg;
-};
-
-static int rtcp_write(BIO *h,const char *buf,int num);
-static int rtcp_read(BIO *h,char *buf,int size);
-static int rtcp_puts(BIO *h,const char *str);
-static int rtcp_gets(BIO *h,char *str,int size);
-static long rtcp_ctrl(BIO *h,int cmd,long arg1,void *arg2);
-static int rtcp_new(BIO *h);
-static int rtcp_free(BIO *data);
-
-static BIO_METHOD rtcp_method=
- {
- BIO_TYPE_FD,
- "RTCP",
- rtcp_write,
- rtcp_read,
- rtcp_puts,
- rtcp_gets,
- rtcp_ctrl,
- rtcp_new,
- rtcp_free,
- NULL,
- };
-
-BIO_METHOD *BIO_s_rtcp(void)
- {
- return(&rtcp_method);
- }
-/*****************************************************************************/
-/* Decnet I/O routines.
- */
-
-#ifdef __DECC
-#pragma message save
-#pragma message disable DOLLARID
-#endif
-
-static int get ( io_channel chan, char *buffer, int maxlen, int *length )
-{
- int status;
- struct io_status iosb;
- status = sys$qiow ( 0, chan, IO$_READVBLK, &iosb, 0, 0,
- buffer, maxlen, 0, 0, 0, 0 );
- if ( (status&1) == 1 ) status = iosb.status;
- if ( (status&1) == 1 ) *length = iosb.count;
- return status;
-}
-
-static int put ( io_channel chan, char *buffer, int length )
-{
- int status;
- struct io_status iosb;
- status = sys$qiow ( 0, chan, IO$_WRITEVBLK, &iosb, 0, 0,
- buffer, length, 0, 0, 0, 0 );
- if ( (status&1) == 1 ) status = iosb.status;
- return status;
-}
-
-#ifdef __DECC
-#pragma message restore
-#endif
-
-/***************************************************************************/
-
-static int rtcp_new(BIO *bi)
-{
- struct rpc_ctx *ctx;
- bi->init=1;
- bi->num=0;
- bi->flags = 0;
- bi->ptr=OPENSSL_malloc(sizeof(struct rpc_ctx));
- ctx = (struct rpc_ctx *) bi->ptr;
- ctx->filled = 0;
- ctx->pos = 0;
- return(1);
-}
-
-static int rtcp_free(BIO *a)
-{
- if (a == NULL) return(0);
- if ( a->ptr ) OPENSSL_free ( a->ptr );
- a->ptr = NULL;
- return(1);
-}
-
-static int rtcp_read(BIO *b, char *out, int outl)
-{
- int status, length;
- struct rpc_ctx *ctx;
- /*
- * read data, return existing.
- */
- ctx = (struct rpc_ctx *) b->ptr;
- if ( ctx->pos < ctx->filled ) {
- length = ctx->filled - ctx->pos;
- if ( length > outl ) length = outl;
- memmove ( out, &ctx->msg.data[ctx->pos], length );
- ctx->pos += length;
- return length;
- }
- /*
- * Requst more data from R channel.
- */
- ctx->msg.channel = 'R';
- ctx->msg.function = 'G';
- ctx->msg.length = sizeof(ctx->msg.data);
- status = put ( b->num, (char *) &ctx->msg, RPC_HDR_SIZE );
- if ( (status&1) == 0 ) {
- return -1;
- }
- /*
- * Read.
- */
- ctx->pos = ctx->filled = 0;
- status = get ( b->num, (char *) &ctx->msg, sizeof(ctx->msg), &length );
- if ( (status&1) == 0 ) length = -1;
- if ( ctx->msg.channel != 'R' || ctx->msg.function != 'C' ) {
- length = -1;
- }
- ctx->filled = length - RPC_HDR_SIZE;
-
- if ( ctx->pos < ctx->filled ) {
- length = ctx->filled - ctx->pos;
- if ( length > outl ) length = outl;
- memmove ( out, ctx->msg.data, length );
- ctx->pos += length;
- return length;
- }
-
- return length;
-}
-
-static int rtcp_write(BIO *b, const char *in, int inl)
-{
- int status, i, segment, length;
- struct rpc_ctx *ctx;
- /*
- * Output data, send in chunks no larger that sizeof(ctx->msg.data).
- */
- ctx = (struct rpc_ctx *) b->ptr;
- for ( i = 0; i < inl; i += segment ) {
- segment = inl - i;
- if ( segment > sizeof(ctx->msg.data) ) segment = sizeof(ctx->msg.data);
- ctx->msg.channel = 'R';
- ctx->msg.function = 'P';
- ctx->msg.length = segment;
- memmove ( ctx->msg.data, &in[i], segment );
- status = put ( b->num, (char *) &ctx->msg, segment + RPC_HDR_SIZE );
- if ((status&1) == 0 ) { i = -1; break; }
-
- status = get ( b->num, (char *) &ctx->msg, sizeof(ctx->msg), &length );
- if ( ((status&1) == 0) || (length < RPC_HDR_SIZE) ) { i = -1; break; }
- if ( (ctx->msg.channel != 'R') || (ctx->msg.function != 'C') ) {
- printf("unexpected response when confirming put %c %c\n",
- ctx->msg.channel, ctx->msg.function );
-
- }
- }
- return(i);
-}
-
-static long rtcp_ctrl(BIO *b, int cmd, long num, void *ptr)
- {
- long ret=1;
-
- switch (cmd)
- {
- case BIO_CTRL_RESET:
- case BIO_CTRL_EOF:
- ret = 1;
- break;
- case BIO_C_SET_FD:
- b->num = num;
- ret = 1;
- break;
- 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 rtcp_gets(BIO *bp, char *buf, int size)
- {
- return(0);
- }
-
-static int rtcp_puts(BIO *bp, const char *str)
-{
- int length;
- if (str == NULL) return(0);
- length = strlen ( str );
- if ( length == 0 ) return (0);
- return rtcp_write ( bp,str, length );
-}
-
projects / cassiopeia.git / blobdiff