First version

src/core/resolv.c

@@ -0,0 +1,25 @@
+#include "resolv.h"
+
+static struct resolver resolvers[0] __table_start(resolver);
+static struct resolver resolvers_end[0] __table_end(resolver);
+
+/*
+ * Resolve a name (which may be just a dotted quad IP address) to an
+ * IP address.
+ *
+ */
+int resolv ( struct in_addr *address, const char *name ) {
+	struct resolver *resolver;
+
+	/* Check for a dotted quad IP address first */
+	if ( inet_aton ( name, address ) )
+		return 1;
+
+	/* Try any compiled-in name resolution modules */
+	for ( resolver = resolvers ; resolver < resolvers_end ; resolver++ ) {
+		if ( resolver->resolv ( address, name ) )
+			return 1;
+	}
+
+	return 0;
+}

src/include/resolv.h

@@ -0,0 +1,15 @@
+#ifndef RESOLV_H
+#define RESOLV_H
+
+#include "in.h"
+#include "tables.h"
+
+struct resolver {
+	int ( * resolv ) ( struct in_addr *address, const char *name );
+};
+
+#define __resolver __table(resolver,01)
+
+extern int resolv ( struct in_addr *address, const char *name );
+
+#endif /* RESOLV_H */