The R13B03 release.OTP_R13B03

1 files changed, 142 insertions, 0 deletions

diff --git a/lib/erl_interface/src/legacy/decode_term.c b/lib/erl_interface/src/legacy/decode_term.c
new file mode 100644
index 0000000000..ef29d6f57d
--- /dev/null
+++ b/lib/erl_interface/src/legacy/decode_term.c
@@ -0,0 +1,142 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 1998-2009. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+#include "eidef.h"
+#include "eiext.h"
+#include "putget.h"
+#include "erl_interface.h"
+
+/*
+ * This file is actually part of the erl_interface library,
+ * not the newer 'ei' library. The header file is still in "ei.h"
+ */
+
+/* FIXME: is this to be completed? */
+
+#if (0)
+int ei_decode_term(const char *buf, int *index, void *t)
+{
+  const char *s = buf + *index;
+  const char *s0 = s;
+
+  if (t) {
+    ETERM *tmp;
+    
+    /* this decodes and advances s */
+    if (!(tmp = erl_decode_buf((unsigned char **)&s))) return -1;
+
+    *(ETERM **)t = tmp;
+    *index += s - s0;
+
+    return 0;
+  }
+  else {
+    int tmpindex = *index;
+    long ttype;
+    int arity;
+    int i;
+    
+    /* these are all the external types */
+    switch ((ttype = get8(s))) {
+    case ERL_SMALL_INTEGER_EXT:
+    case ERL_INTEGER_EXT:
+    case ERL_SMALL_BIG_EXT:
+      return ei_decode_long(buf,index,NULL);
+
+    case ERL_FLOAT_EXT:  
+      return ei_decode_double(buf,index,NULL);
+
+    case ERL_ATOM_EXT:
+      return ei_decode_atom(buf,index,NULL);
+
+    case ERL_REFERENCE_EXT:
+    case ERL_NEW_REFERENCE_EXT:
+      return ei_decode_ref(buf,index,NULL);
+      
+    case ERL_PORT_EXT:
+      return ei_decode_port(buf,index,NULL);
+      
+    case ERL_PID_EXT:     
+      return ei_decode_pid(buf,index,NULL);
+
+    case ERL_SMALL_TUPLE_EXT:
+    case ERL_LARGE_TUPLE_EXT:
+      if (ei_decode_tuple_header(buf,index,&arity) < 0)
+	return -1;
+
+      for (i=0; i<arity; i++) {
+	if (ei_decode_term(buf,index,NULL)) {
+	  /* restore possibly changed index before returning */
+	  *index = tmpindex;
+	  return -1;
+	}
+      }
+      return 0;
+      
+    case ERL_STRING_EXT:
+      return ei_decode_string(buf,index,NULL);
+
+    case ERL_LIST_EXT:   
+    case ERL_NIL_EXT:
+      if (ei_decode_list_header(buf,index,&arity) < 0)
+	return -1;
+      
+      if (arity) {
+	for (i=0; i<arity; i++) {
+	  if (ei_decode_term(buf,index,NULL) < 0) {
+	    /* restore possibly changed index before returning */
+	    *index = tmpindex;
+	    return -1;
+	  }
+	}
+	if (ei_decode_list_header(buf,index,&arity) < 0) {
+	  *index = tmpindex;
+	  return -1;
+	}
+      }
+      return 0;
+
+    case ERL_BINARY_EXT:     
+      return ei_decode_binary(buf,index,NULL,NULL);
+      
+    case ERL_LARGE_BIG_EXT:
+    default:
+      break;
+    }
+  }
+  
+  return -1;
+}
+#else
+int ei_decode_term(const char *buf, int *index, void *t)
+{
+  const char *s = buf + *index;
+  const char *s0 = s;
+  ETERM *tmp;
+
+  /* this decodes and advances s */
+  if (!(tmp = erl_decode_buf((unsigned char **)&s))) return -1;
+
+  if (t) *(ETERM **)t = tmp;
+  else erl_free_term(tmp);
+
+  *index += s - s0;
+  
+  return 0;
+}
+#endif