[Add] You can now use pack to list files in packfile.

utils/pack/main.c

@@ -1,5 +1,6 @@
 #include <stdlib.h>
 #include <stdio.h>
+#include <stdint.h>
 
 #include "pack.h"
 
@@ -9,17 +10,29 @@ int main(int argc, char** argv) {
   switch(argc) {
     case 1:
       fprintf(stderr, "Missing output file\n");
-    case 2:
-      fprintf(stderr, "Missing input file/s\n");
       goto usage;
       break;
   }
   
   char* outfile = argv[1];
+
+  char** list;
+  uint32_t nlist;
+  int i;
   uint32_t nfiles = (uint32_t)argc - 2;
   argv += 2;
 
+  if(nfiles == 0) {
+    // No files, list what it has.
+    fprintf(stdout, "Packfile '%s' contains:\n", outfile);
+    for(i = 0; i < nlist; i++) {
+      fprintf(stdout, " %03d) %s\n", i, list[i]);
+      free(list[i]);
+    }
+    free(list);
+  } else {
     pack_files(outfile, (const char**)argv, nfiles);
+  }
 
   exit(EXIT_SUCCESS);