The R13B03 release.OTP_R13B03

1 files changed, 57 insertions, 0 deletions

diff --git a/lib/erl_interface/src/decode/decode_boolean.c b/lib/erl_interface/src/decode/decode_boolean.c
new file mode 100644
index 0000000000..9fd09c63f1
--- /dev/null
+++ b/lib/erl_interface/src/decode/decode_boolean.c
@@ -0,0 +1,57 @@
+/*
+ * %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 <string.h>
+#include "eidef.h"
+#include "eiext.h"
+#include "putget.h"
+
+/* c non-zero -> erlang "true" atom, otherwise "false" */
+int ei_decode_boolean(const char *buf, int *index, int *p)
+{
+  const char *s = buf + *index;
+  const char *s0 = s;
+  int len;
+  int t;
+
+  if (get8(s) != ERL_ATOM_EXT) return -1;
+
+  len = get16be(s);
+
+  switch (len) {
+  case 4:
+    /* typecast makes ansi happy */
+    if (strncmp((char*)s,"true",4)) return -1;
+    t = 1;
+    break;
+
+  case 5:
+    if (strncmp((char*)s,"false",5)) return -1;
+    t = 0;
+    break;
+    
+  default:
+    return -1;
+  }
+  
+  s += len;
+  if (p) *p = t;
+  *index += s-s0;
+
+  return 0; 
+}