What the fuck is this

src/wc.c

@@ -1,9 +1,24 @@
 #include <stdio.h>
 #include <ctype.h>
+#include <getopt.h>
+#include <stdlib.h>
 
-void
+struct wc_values
+{
+  int lines;
+  int bytes;
+  int words;
+};
+
+struct wc_values
 wc(FILE *file)
 {
+  if(file == NULL)
+    {
+      fprintf(stderr,"error\n");
+      exit(1);
+    }
+  struct wc_values foobar;
   char c;
   int newlines, spaces, bytes = 0;
   newlines = spaces = bytes = 0;
@@ -15,22 +30,43 @@ wc(FILE *file)
       if(isspace(c))
         spaces++;
     }
-  printf("%i %i %i\n",newlines,spaces,bytes);
+  foobar.bytes = bytes;
+  foobar.lines = newlines;
+  foobar.words = spaces;
+
+  // printf("%i %i %i\n",newlines,spaces,bytes);
   fclose(file);
+  return foobar;
 }
 
 int
 main(int argc, char *argv[])
 {
+  int c = getopt(argc, argv, "clw");
+  struct wc_values data;
   if (argc == 1)
-    wc(stdin);
+    data = wc(stdin);
   else
     {
-      for(int i = 1; i<argc;i++)
-	{
-	  wc(fopen(argv[i],"r"));
-	}
-      
+      for(int i = optind; i<argc;i++)
+        {
+          data = wc(fopen(argv[i],"r"));
+          switch(c)
+            {
+            case 'c':
+              printf("%i\n",data.bytes);
+              break;
+            case 'l':
+              printf("%i\n",data.lines);
+              break;
+            case 'w':
+              printf("%i\n",data.words);
+              break;
+            default:
+              printf("%i %i %i\n",data.lines,data.words,data.bytes);
+            }
+        }
+
     }
   return 0;
 }