copied netlink.h and netlink.c from musl

qse/include/qse/si/netlink.h

@@ -0,0 +1,51 @@
+#ifndef _QSE_SI_NETLINK_H_
+#define _QSE_SI_NETLINK_H_
+
+#include <qse/types.h>
+#include <qse/macros.h>
+
+#if defined(__linux)
+
+struct qse_nlmsg_hdr_t 
+{
+	qse_uint32_t	nlmsg_len;
+	qse_uint16_t	nlmsg_type;
+	qse_uint16_t	nlmsg_flags;
+	qse_uint32_t	nlmsg_seq;
+	qse_uint32_t	nlmsg_pid;
+};
+typedef struct qse_nlmsg_hdr_t qse_nlmsg_hdr_t;
+
+
+typedef int (*qse_nlenum_cb_t) (
+	qse_nlmsg_hdr_t* hdr,
+	void*            ctx
+);
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+QSE_EXPORT int qse_nlenum (
+	int             fd,
+	unsigned int    seq,
+	int             type,
+	int             af,
+	qse_nlenum_cb_t cb,
+	void*           ctx
+);
+
+QSE_EXPORT int qse_nlenum_route (
+	int             link_af,
+	int             addr_af,
+	qse_nlenum_cb_t cb,
+	void*           ctx
+);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __linux */
+
+#endif