1 files changed, 34 insertions, 3 deletions
diff --git a/src/command/cd.cc b/src/command/cd.cc
index 49b1899..5434f20 100644
--- a/src/command/cd.cc
+++ b/src/command/cd.cc
@@ -1,10 +1,32 @@
 #include "command/builtin.h"
 
-namespace ov4::command
-{
+#include <cerrno>
+#include <unordered_map>
 
 using namespace std;
 
+// constexpr string_view
+//     err_EACCES = "cd: Search permission is denied for one of the components of path.",
+//     err_EFAULT = "cd: path points outside your accessible address space.",
+//     err_EIO = "An I/O error occurred.",
+//     err_ENOTDIR = "A component of path is not a directory.",
+//     err_ENOENT = "The directory specified in path does not exist.",
+//     err_ENAMETOOLONG = "path is too long.",
+//     err_ENOMEM = "Insufficient kernel memory was available.";
+
+const unordered_map<int, string_view> err_list = {
+    { EACCES, "cd: Search permission is denied for one of the components of path." },
+    { EFAULT, "cd: path points outside your accessible address space." },
+    { EIO, "An I/O error occurred." },
+    { ENOTDIR, "A component of path is not a directory." },
+    { ENOENT, "The directory specified in path does not exist." },
+    { ENAMETOOLONG, "path is too long." },
+    { ENOMEM, "Insufficient kernel memory was available."},
+};
+
+namespace ov4::command
+{
+
 void cd(char **argv)
 {
     if (argv == nullptr) return;
@@ -13,7 +35,16 @@ void cd(char **argv)
         cout << "cd: requires path" << endl;
         return;
     }
-    ov4::set_current_dir(argv[1]);
+    int ret = ov4::set_current_dir(argv[1]);
+    if (ret != 0)
+    {
+        if (err_list.find(errno) != err_list.end())
+        {
+            cout << "cd: " << err_list.at(errno) << endl;
+            return;
+        }
+        cout << "cd: Error occured, code: " << errno << endl;
+    }
 }
 
 }