more cleaning

libwakeonlan/libwakeonlan.c

@@ -0,0 +1,21 @@
+#include "libwakeonlan.h"
+
+/* Returns a byte array of 6 0xFF and 16 repetitions of the 6-byte MAC. */
+unsigned int*
+magic_packet(unsigned int *mac){
+	size_t i;
+	size_t j;
+	int *retval;
+
+	if((retval = malloc(sizeof(unsigned int) * 6 + 6*16)) == NULL)
+		return NULL;
+
+	for(i = 0; i < 6; ++i)
+		retval[i] = 255;
+
+	for(i = 1; i < 16; ++i)
+		for(j = 0; j < 6; ++j)
+			retval[i*j] = mac[j];
+
+	return retval; /* must be freed */
+}

libwakeonlan/libwakeonlan.h

@@ -0,0 +1,4 @@
+#include <stddef.h>
+#include <stdlib.h>
+
+unsigned int *magic_packet(unsigned int *mac);