diff --git a/src/sync.c b/src/sync.c
new file mode 100644
index 0000000..ef52bf6
--- /dev/null
+++ b/src/sync.c
@@ -0,0 +1,27 @@
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+int main(const int argc, const char **argv) {
+	if (argc == 1)
+		sync();
+
+	for (int i = 1; i < argc; i++) {
+		int fd = open(argv[i], O_WRONLY);
+		if (fd < 0) {
+			fprintf(stderr, "sync: %s\n", strerror(errno));
+			return 1;
+		}
+
+		if (fsync(fd)) {
+			fprintf(stderr, "sync: %s\n", strerror(errno));
+			return 1;
+		}
+
+		close(fd);
+	}
+
+	return 0;
+}