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1 files changed, 297 insertions, 0 deletions

diff --git a/src/lib/libcrypto/bio/bss_rtcp.c b/src/lib/libcrypto/bio/bss_rtcp.c
new file mode 100644
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+++ b/src/lib/libcrypto/bio/bss_rtcp.c
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+/* 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
+ */
+/* VMS */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include "cryptlib.h"
+#include "bio.h"
+
+#include <iodef.h>              /* VMS IO$_ definitions */
+extern int SYS$QIOW();
+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,char *buf,int num);
+static int rtcp_read(BIO *h,char *buf,int size);
+static int rtcp_puts(BIO *h,char *str);
+static int rtcp_gets(BIO *h,char *str,int size);
+static long rtcp_ctrl(BIO *h,int cmd,long arg1,char *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,
+        };
+
+BIO_METHOD *BIO_s_rtcp()
+        {
+        return(&rtcp_method);
+        }
+/*****************************************************************************/
+/* Decnet I/O routines.
+ */
+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;
+}
+/***************************************************************************/
+
+static int rtcp_new(bi)
+BIO *bi;
+{
+    struct rpc_ctx *ctx;
+        bi->init=1;
+        bi->num=0;
+        bi->flags = 0;
+        bi->ptr=Malloc(sizeof(struct rpc_ctx));
+        ctx = (struct rpc_ctx *) bi->ptr;
+        ctx->filled = 0;
+        ctx->pos = 0;
+        return(1);
+}
+
+static int rtcp_free(a)
+BIO *a;
+{
+        if (a == NULL) return(0);
+        if ( a->ptr ) Free ( a->ptr );
+        a->ptr = NULL;
+        return(1);
+}
+        
+static int rtcp_read(b,out,outl)
+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(b,in,inl)
+BIO *b;
+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(b,cmd,num,ptr)
+BIO *b;
+int cmd;
+long num;
+char *ptr;
+        {
+        long ret=1;
+
+        switch (cmd)
+                {
+        case BIO_CTRL_RESET:
+        case BIO_CTRL_EOF:
+                ret = 1;
+                break;
+        case BIO_CTRL_SET:
+                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(bp,buf,size)
+BIO *bp;
+char *buf;
+int size;
+        {
+        return(0);
+        }
+
+static int rtcp_puts(bp,str)
+BIO *bp;
+char *str;
+{
+    int length;
+    if (str == NULL) return(0);
+    length = strlen ( str );
+    if ( length == 0 ) return (0);
+    return rtcp_write ( bp,str, length );
+}
+