1 files changed, 52 insertions, 0 deletions
diff --git a/pigeonhole/src/lib-sieve/mcht-is.c b/pigeonhole/src/lib-sieve/mcht-is.c
new file mode 100644
index 0000000..db374bb
--- /dev/null
+++ b/pigeonhole/src/lib-sieve/mcht-is.c
@@ -0,0 +1,52 @@
+/* Copyright (c) 2002-2018 Pigeonhole authors, see the included COPYING file
+ */
+
+/* Match-type ':is':
+ */
+
+#include "lib.h"
+
+#include "sieve-match-types.h"
+#include "sieve-comparators.h"
+#include "sieve-match.h"
+
+#include <string.h>
+#include <stdio.h>
+
+/*
+ * Forward declarations
+ */
+
+static int mcht_is_match_key
+	(struct sieve_match_context *mctx, const char *val, size_t val_size,
+		const char *key, size_t key_size);
+
+/*
+ * Match-type object
+ */
+
+const struct sieve_match_type_def is_match_type = {
+	SIEVE_OBJECT("is",
+		&match_type_operand, SIEVE_MATCH_TYPE_IS),
+	.match_key = mcht_is_match_key
+};
+
+/*
+ * Match-type implementation
+ */
+
+static int mcht_is_match_key
+(struct sieve_match_context *mctx ATTR_UNUSED,
+	const char *val, size_t val_size,
+	const char *key, size_t key_size)
+{
+	if ( val_size == 0 )
+		return ( key_size == 0 ? 1 : 0 );
+
+	if ( mctx->comparator->def != NULL && mctx->comparator->def->compare != NULL )
+		return (mctx->comparator->def->compare(mctx->comparator,
+			val, val_size, key, key_size) == 0 ? 1 : 0 );
+
+	return 0;
+}
+