Cleanup inotify syscalls decoding

* linux/inotify.h: New file.
* file.c (inotify_modes, inotify_init_flags, sys_inotify_add_watch,
sys_inotify_rm_watch, sys_inotify_init1): Move...
* inotify.c: ... here.
(inotify_modes): Rename to inotify_flags, convert to XLAT form.
(inotify_init_flags): Convert to XLAT form.
* Makefile.am (strace_SOURCES): Add inotify.c.
(EXTRA_DIST): Add linux/inotify.h.
diff --git a/inotify.c b/inotify.c
new file mode 100644
index 0000000..03689b5
--- /dev/null
+++ b/inotify.c
@@ -0,0 +1,72 @@
+#include "defs.h"
+#include <fcntl.h>
+#include <linux/inotify.h>
+
+static const struct xlat inotify_flags[] = {
+	XLAT(IN_ACCESS),
+	XLAT(IN_MODIFY),
+	XLAT(IN_ATTRIB),
+	XLAT(IN_CLOSE),
+	XLAT(IN_CLOSE_WRITE),
+	XLAT(IN_CLOSE_NOWRITE),
+	XLAT(IN_OPEN),
+	XLAT(IN_MOVE),
+	XLAT(IN_MOVED_FROM),
+	XLAT(IN_MOVED_TO),
+	XLAT(IN_CREATE),
+	XLAT(IN_DELETE),
+	XLAT(IN_DELETE_SELF),
+	XLAT(IN_MOVE_SELF),
+	XLAT(IN_UNMOUNT),
+	XLAT(IN_Q_OVERFLOW),
+	XLAT(IN_IGNORED),
+	XLAT(IN_ONLYDIR),
+	XLAT(IN_DONT_FOLLOW),
+	XLAT(IN_EXCL_UNLINK),
+	XLAT(IN_MASK_ADD),
+	XLAT(IN_ISDIR),
+	XLAT(IN_ONESHOT),
+	XLAT_END
+};
+
+static const struct xlat inotify_init_flags[] = {
+	XLAT(O_NONBLOCK),
+	XLAT(O_CLOEXEC),
+	XLAT_END
+};
+
+int
+sys_inotify_add_watch(struct tcb *tcp)
+{
+	if (entering(tcp)) {
+		/* file descriptor */
+		printfd(tcp, tcp->u_arg[0]);
+		tprints(", ");
+		/* pathname */
+		printpath(tcp, tcp->u_arg[1]);
+		tprints(", ");
+		/* mask */
+		printflags(inotify_flags, tcp->u_arg[2], "IN_???");
+	}
+	return 0;
+}
+
+int
+sys_inotify_rm_watch(struct tcb *tcp)
+{
+	if (entering(tcp)) {
+		/* file descriptor */
+		printfd(tcp, tcp->u_arg[0]);
+		/* watch descriptor */
+		tprintf(", %d", (int) tcp->u_arg[1]);
+	}
+	return 0;
+}
+
+int
+sys_inotify_init1(struct tcb *tcp)
+{
+	if (entering(tcp))
+		printflags(inotify_init_flags, tcp->u_arg[0], "IN_???");
+	return 0;
+}