--- /dev/null
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+char *
+tolowerw(char *inp)
+{
+ char *tmp = calloc(strlen(inp), sizeof(char));
+ strcpy(tmp, inp);
+ for (int i = 0; tmp[i]; i++){
+ tmp[i] = tolower(tmp[i]);
+ }
+ return tmp;
+}
+