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-rw-r--r--lib/erl_interface/src/encode/encode_atom.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/lib/erl_interface/src/encode/encode_atom.c b/lib/erl_interface/src/encode/encode_atom.c
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index 0000000000..69f2d1451c
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+++ b/lib/erl_interface/src/encode/encode_atom.c
@@ -0,0 +1,51 @@
+/*
+ * %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"
+
+int ei_encode_atom(char *buf, int *index, const char *p)
+{
+ return ei_encode_atom_len(buf, index, p, strlen(p));
+}
+
+int ei_encode_atom_len(char *buf, int *index, const char *p, int len)
+{
+ char *s = buf + *index;
+ char *s0 = s;
+
+ /* This function is documented to truncate at MAXATOMLEN (256) */
+ if (len > MAXATOMLEN)
+ len = MAXATOMLEN;
+
+ if (!buf) s += 3;
+ else {
+ put8(s,ERL_ATOM_EXT);
+ put16be(s,len);
+
+ memmove(s,p,len); /* unterminated string */
+ }
+ s += len;
+
+ *index += s-s0;
+
+ return 0;
+}
+