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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /openssl/crypto/bio/bss_rtcp.c
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Diffstat (limited to 'openssl/crypto/bio/bss_rtcp.c')
-rw-r--r--openssl/crypto/bio/bss_rtcp.c294
1 files changed, 294 insertions, 0 deletions
diff --git a/openssl/crypto/bio/bss_rtcp.c b/openssl/crypto/bio/bss_rtcp.c
new file mode 100644
index 000000000..7dae48556
--- /dev/null
+++ b/openssl/crypto/bio/bss_rtcp.c
@@ -0,0 +1,294 @@
+/* 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 );
+}
+