1 files changed, 140 insertions, 0 deletions
diff --git a/addons/ooh323c/src/context.c b/addons/ooh323c/src/context.c
new file mode 100644
index 000000000..d243f88a0
--- /dev/null
+++ b/addons/ooh323c/src/context.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 1997-2005 by Objective Systems, Inc.
+ *
+ * This software is furnished under an open source license and may be 
+ * used and copied only in accordance with the terms of this license. 
+ * The text of the license may generally be found in the root 
+ * directory of this installation in the COPYING file.  It 
+ * can also be viewed online at the following URL:
+ *
+ *   http://www.obj-sys.com/open/license.html
+ *
+ * Any redistributions of this file including modified versions must 
+ * maintain this copyright notice.
+ *
+ *****************************************************************************/
+
+#include "ooasn1.h"
+#include <stdlib.h>
+
+int initContext (OOCTXT* pctxt)
+{
+   memset (pctxt, 0, sizeof(OOCTXT));
+
+   memHeapCreate (&pctxt->pTypeMemHeap);
+   pctxt->pMsgMemHeap = pctxt->pTypeMemHeap;
+   memHeapAddRef (&pctxt->pMsgMemHeap);
+
+   return ASN_OK;
+}
+
+int initContextBuffer 
+(OOCTXT* pctxt, const ASN1OCTET* bufaddr, ASN1UINT bufsiz)
+{
+   if (bufaddr == 0) {
+      /* dynamic buffer */
+      if (bufsiz == 0) bufsiz = ASN_K_ENCBUFSIZ;
+      pctxt->buffer.data = (ASN1OCTET*) 
+         memHeapAlloc (&pctxt->pMsgMemHeap, bufsiz);
+      if (!pctxt->buffer.data) return ASN_E_NOMEM;
+      pctxt->buffer.size = bufsiz;
+      pctxt->buffer.dynamic = TRUE;
+   }
+   else {
+      /* static buffer */
+      pctxt->buffer.data = (ASN1OCTET*) bufaddr;
+      pctxt->buffer.size = bufsiz;
+      pctxt->buffer.dynamic = FALSE;
+   }
+
+   pctxt->buffer.byteIndex = 0;
+   pctxt->buffer.bitOffset = 8;
+
+   return ASN_OK;
+}
+
+int initSubContext (OOCTXT* pctxt, OOCTXT* psrc) 
+{
+   int stat = ASN_OK;
+   memset (pctxt, 0, sizeof(OOCTXT));
+   pctxt->pTypeMemHeap = psrc->pTypeMemHeap;
+   memHeapAddRef (&pctxt->pTypeMemHeap);
+   pctxt->pMsgMemHeap = psrc->pMsgMemHeap;
+   memHeapAddRef (&pctxt->pMsgMemHeap);
+   pctxt->flags = psrc->flags;
+   pctxt->buffer.dynamic = TRUE;
+   pctxt->buffer.byteIndex = 0;
+   pctxt->buffer.bitOffset = 8;
+   return stat;
+}
+
+void freeContext (OOCTXT* pctxt)
+{
+   ASN1BOOL saveBuf = (pctxt->flags & ASN1SAVEBUF) != 0;
+   
+   if (pctxt->buffer.dynamic && pctxt->buffer.data) {
+      if (saveBuf) {
+         memHeapMarkSaved (&pctxt->pMsgMemHeap, pctxt->buffer.data, TRUE);
+      }
+      else {
+         memHeapFreePtr (&pctxt->pMsgMemHeap, pctxt->buffer.data);
+      }
+   }
+
+   errFreeParms (&pctxt->errInfo);
+
+   memHeapRelease (&pctxt->pTypeMemHeap);
+   memHeapRelease (&pctxt->pMsgMemHeap);
+}
+
+void copyContext (OOCTXT* pdest, OOCTXT* psrc)
+{
+   memcpy (&pdest->buffer, &psrc->buffer, sizeof(ASN1BUFFER));
+   pdest->flags = psrc->flags;
+}
+
+void setCtxtFlag (OOCTXT* pctxt, ASN1USINT mask)
+{
+   pctxt->flags |= mask;
+}
+
+void clearCtxtFlag (OOCTXT* pctxt, ASN1USINT mask)
+{
+   pctxt->flags &= ~mask;
+}
+
+int setPERBufferUsingCtxt (OOCTXT* pTarget, OOCTXT* pSource)
+{
+   int stat = initContextBuffer 
+      (pTarget, pSource->buffer.data, pSource->buffer.size);
+
+   if (ASN_OK == stat) {
+      pTarget->buffer.byteIndex = pSource->buffer.byteIndex;
+      pTarget->buffer.bitOffset = pSource->buffer.bitOffset;
+   }
+
+   return stat;
+}
+
+int setPERBuffer (OOCTXT* pctxt,
+                  ASN1OCTET* bufaddr, ASN1UINT bufsiz, ASN1BOOL aligned)
+{
+   int stat = initContextBuffer (pctxt, bufaddr, bufsiz);
+   if(stat != ASN_OK) return stat;
+
+   
+   return ASN_OK;
+}
+
+OOCTXT* newContext () 
+{
+   OOCTXT* pctxt = (OOCTXT*) ASN1CRTMALLOC0 (sizeof(OOCTXT));
+   if (pctxt) {
+      if (initContext(pctxt) != ASN_OK) {
+         ASN1CRTFREE0 (pctxt);
+         pctxt = 0;
+      }
+      pctxt->flags |= ASN1DYNCTXT;
+   }
+   return (pctxt);
+}