1 files changed, 49 insertions, 0 deletions
diff --git a/imap/src/ansilib/memmove2.c b/imap/src/ansilib/memmove2.c
new file mode 100644
index 00000000..52532e21
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+++ b/imap/src/ansilib/memmove2.c
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+/* ========================================================================
+ * Copyright 1988-2006 University of Washington
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 
+ * ========================================================================
+ */
+
+/*
+ * Program:	Memory move when no bcopy()
+ *
+ * Author:	Mark Crispin
+ *		Networks and Distributed Computing
+ *		Computing & Communications
+ *		University of Washington
+ *		Administration Building, AG-44
+ *		Seattle, WA  98195
+ *		Internet: MRC@CAC.Washington.EDU
+ *
+ * Date:	11 May 1989
+ * Last Edited:	30 August 2006
+ */
+
+/* Copy memory block
+ * Accepts: destination pointer
+ *	    source pointer
+ *	    length
+ * Returns: destination pointer
+ */
+
+void *memmove (void *s,void *ct,size_t n)
+{
+  char *dp,*sp;
+  int i;
+  unsigned long dest = (unsigned long) s;
+  unsigned long src = (unsigned long) ct;
+  if (((dest < src) && ((dest + n) < src)) ||
+      ((dest > src) && ((src + n) < dest))) return (void *) memcpy (s,ct,n);
+  dp = (char *) s;
+  sp = (char *) ct;
+  if (dest < src) for (i = 0; i < n; ++i) dp[i] = sp[i];
+  else if (dest > src) for (i = n - 1; i >= 0; --i) dp[i] = sp[i];
+  return s;
+}