further progress.

wc.c

@@ -5,9 +5,24 @@
 int process_fn(int fn)
 {
     char c[1];
+		int seen_word=0;
+		int seen_sep=0;
+		int num_words = 0;
     while (read(fn, c, sizeof(c)) > 0) {
-        printf("%c", c[0]);
+				if(*c == '\n' || *c == ' ' || *c == '\t'){
+					seen_sep = 1;
+				} else {
+					seen_word = 1;
 				}
+				if(seen_word && seen_sep){
+					num_words++;
+					seen_sep = seen_word = 0;
+				}
+    }
+		if(seen_word){
+			num_words++;
+		}
+		printf("%i\n",num_words);
     return 0;
 }