feat(dirent): directory iteration

src/dirent/alphasort.c

@@ -0,0 +1,22 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <dirent.h>
+
+#include <string.h>
+
+#if VLIBC_LEVEL_GE(2)
+
+/*
+ * alphasort (todo 24, XSI): the scandir comparator that orders entries by
+ * strcmp on their names. Receives two pointers to the array's struct
+ * dirent pointers.
+ */
+int
+alphasort(const struct dirent **a, const struct dirent **b)
+{
+    return strcmp((*a)->d_name, (*b)->d_name);
+}
+
+#endif /* VLIBC_LEVEL_GE(2) */