added fallback for empty `cd` -> goto `HOME`

Signed-off-by: czjstmax <jstmaxlol@disroot.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/nm.c b/nm.c
index 455fd0e..ffe2605 100644
--- a/nm.c
+++ b/nm.c
@@ -29,6 +29,9 @@ int main(void)
     char *USER = getenv("USER");
     if (!USER)
         USER = "god";
+    char *HOME = getenv("HOME");
+    if (!HOME)
+        HOME = ".";
 
     while (true) {
         char prompt[strlen(USER) + strlen("$ ") + 1];
@@ -67,7 +70,8 @@ int main(void)
         }
         else if (strcmp(p.we_wordv[0], "cd") == 0) {
             if (p.we_wordc <= 1) {
-                printf("nsh+! cd: no arguments were given.\n");
+                if (chdir(HOME))
+                    perror("nsh+! ERROR: cannot retrieve HOME, failed to change directory");
                 FreeAll();
                 continue;
             }