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-rw-r--r--src/global/been_here.h52
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diff --git a/src/global/been_here.h b/src/global/been_here.h
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+#ifndef _BEEN_HERE_H_INCLUDED_
+#define _BEEN_HERE_H_INCLUDED_
+
+/*++
+/* NAME
+/* been_here 3h
+/* SUMMARY
+/* detect repeated occurrence of string
+/* SYNOPSIS
+/* #include <been_here.h>
+/* DESCRIPTION
+/* .nf
+
+ /*
+ * System library.
+ */
+#include <stdarg.h>
+
+ /*
+ * External interface.
+ */
+typedef struct {
+ int limit; /* ceiling, zero for none */
+ int flags; /* see below */
+ struct HTABLE *table;
+} BH_TABLE;
+
+#define BH_BOUND_NONE 0 /* no upper bound */
+#define BH_FLAG_NONE 0 /* no special processing */
+#define BH_FLAG_FOLD (1<<0) /* fold case */
+
+extern BH_TABLE *been_here_init(int, int);
+extern void been_here_free(BH_TABLE *);
+extern int been_here_fixed(BH_TABLE *, const char *);
+extern int PRINTFLIKE(2, 3) been_here(BH_TABLE *, const char *,...);
+extern int been_here_check_fixed(BH_TABLE *, const char *);
+extern int PRINTFLIKE(2, 3) been_here_check(BH_TABLE *, const char *,...);
+extern int been_here_drop_fixed(BH_TABLE *, const char *);
+extern int PRINTFLIKE(2, 3) been_here_drop(BH_TABLE *, const char *,...);
+
+/* LICENSE
+/* .ad
+/* .fi
+/* The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/* Wietse Venema
+/* IBM T.J. Watson Research
+/* P.O. Box 704
+/* Yorktown Heights, NY 10598, USA
+/*--*/
+
+#endif