1 files changed, 81 insertions, 0 deletions
diff --git a/src/util/mac_expand.h b/src/util/mac_expand.h
new file mode 100644
index 0000000..fbe6347
--- /dev/null
+++ b/src/util/mac_expand.h
@@ -0,0 +1,81 @@
+#ifndef _MAC_EXPAND_H_INCLUDED_
+#define _MAC_EXPAND_H_INCLUDED_
+
+/*++
+/* NAME
+/*	mac_expand 3h
+/* SUMMARY
+/*	expand macro references in string
+/* SYNOPSIS
+/*	#include <mac_expand.h>
+/* DESCRIPTION
+/* .nf
+
+ /*
+  * Utility library.
+  */
+#include <vstring.h>
+#include <mac_parse.h>
+
+ /*
+  * Features.
+  */
+#define MAC_EXP_FLAG_NONE	(0)
+#define MAC_EXP_FLAG_RECURSE	(1<<0)
+#define MAC_EXP_FLAG_APPEND	(1<<1)
+#define MAC_EXP_FLAG_SCAN	(1<<2)
+#define MAC_EXP_FLAG_PRINTABLE  (1<<3)
+
+ /*
+  * Token codes, public so tha they are available to mac_expand_add_relop()
+  */
+#define MAC_EXP_OP_TOK_NONE	0	/* Sentinel */
+#define MAC_EXP_OP_TOK_EQ	1	/* == */
+#define MAC_EXP_OP_TOK_NE	2	/* != */
+#define MAC_EXP_OP_TOK_LT	3	/* < */
+#define MAC_EXP_OP_TOK_LE	4	/* <= */
+#define MAC_EXP_OP_TOK_GE	5	/* >= */
+#define MAC_EXP_OP_TOK_GT	6	/* > */
+
+ /*
+  * Relational operator results. An enum to discourage assuming that 0 is
+  * false, !0 is true.
+  */
+typedef enum MAC_EXP_OP_RES {
+    MAC_EXP_OP_RES_TRUE,
+    MAC_EXP_OP_RES_FALSE,
+    MAC_EXP_OP_RES_ERROR,
+} MAC_EXP_OP_RES;
+
+
+extern MAC_EXP_OP_RES mac_exp_op_res_bool[2];
+
+ /*
+  * Real lookup or just a test?
+  */
+#define MAC_EXP_MODE_TEST	(0)
+#define MAC_EXP_MODE_USE	(1)
+
+typedef const char *(*MAC_EXP_LOOKUP_FN) (const char *, int, void *);
+typedef MAC_EXP_OP_RES (*MAC_EXPAND_RELOP_FN) (const char *, int, const char *);
+
+extern int mac_expand(VSTRING *, const char *, int, const char *, MAC_EXP_LOOKUP_FN, void *);
+void    mac_expand_add_relop(int *, const char *, MAC_EXPAND_RELOP_FN);
+
+/* 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
+/*
+/*	Wietse Venema
+/*	Google, Inc.
+/*	111 8th Avenue
+/*	New York, NY 10011, USA
+/*--*/
+
+#endif