path and cd builtin

src/builtins/builtins.c

@@ -0,0 +1,22 @@
+#include "builtins.h"
+#include "../system/system.h"
+#include "../util/util.h"
+
+int hashes_calced = 0;
+int cd_hash = 0;
+
+int msh_try_builtin(char *cmd, char **args) {
+  int hash = str_hash(cmd);
+
+  if (hashes_calced == 0) {
+    cd_hash = str_hash("cd");
+    hashes_calced = 1;
+  }
+  if (hash == cd_hash) {
+    msh_builtin_cd(args[1]);
+    return 1;
+  }
+  return 0;
+};
+
+void msh_builtin_cd(char *ch) { msh_set_working_directory(ch); };