Support "ls <path>" rather than just "ls" :^)

Userland/ls.cpp

@@ -4,20 +4,27 @@
 #include <LibC/errno.h>
 #include <LibC/string.h>
 
+static int do_dir(const char* path);
+
 int main(int argc, char** argv)
 {
- (void) argc;
- (void) argv;
- bool colorize = true;
+ if (argc == 2) {
+ return do_dir(argv[1]);
+ }
+ return do_dir(".");
+}
 
- DIR* dirp = opendir(".");
+int do_dir(const char* path)
+{
+ DIR* dirp = opendir(path);
  if (!dirp) {
- perror("opendir failed");
+ perror("opendir");
  return 1;
  }
+ bool colorize = true;
  char pathbuf[256];
  while (auto* de = readdir(dirp)) {
- sprintf(pathbuf, "%s", de->d_name);
+ sprintf(pathbuf, "%s/%s", path, de->d_name);
 
  struct stat st;
  int rc = lstat(pathbuf, &st);