1 files changed, 28 insertions, 0 deletions
diff --git a/parse.c b/parse.c
index 9bd0e81..ad21040 100644
--- a/parse.c
+++ b/parse.c
@@ -17,6 +17,7 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "common.h"
 #include "parse.h"
 
 /**
@@ -83,3 +84,30 @@ bool parse_unsigned(const char **cursor, int base, unsigned long *valp)
 	*cursor = p;
 	return true;
 }
+
+/**
+ * parse_port_range() - Parse a range of port numbers '<first>[-<last>]'
+ * @range:	Update with the parsed values on success
+ */
+bool parse_port_range(const char **cursor, struct port_range *range)
+{
+	unsigned long first, last;
+	const char *p = *cursor;
+
+	if (!parse_unsigned(&p, 10, &first))
+		return false;
+
+	last = first;
+
+	if (parse_literal(&p, "-"))
+		if (!parse_unsigned(&p, 10, &last))
+			return false;
+
+	if ((last < first) || (last >= NUM_PORTS))
+		return false;
+
+	range->first = first;
+	range->last = last;
+	*cursor = p;
+	return true;
+}