devfs: stat() for root directory

lux-operating-system · Oct 4, 2024 · 0754f2e · 0754f2e
1 parent 131c6a1
commit 0754f2e
Showing 1 changed file with 13 additions and 1 deletion.
diff --git a/fs/devfs/src/stat.c b/fs/devfs/src/stat.c
@@ -22,12 +22,24 @@ void devfsStat(SyscallHeader *req, SyscallHeader *res) {
     memcpy(res, req, req->header.length);
 
     res->header.response = 1;
+    StatCommand *response = (StatCommand *) res;
+
+    if((strlen(cmd->path) == 1) && (cmd->path[0] == '/')) {
+        // /dev is owned by root:root, rwxr-xr-x
+        response->header.header.status = 0;
+        response->buffer.st_mode = S_IFDIR | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
+        response->buffer.st_uid = 0;
+        response->buffer.st_gid = 0;
+        response->buffer.st_size = deviceCount;
+        luxSendDependency(response);
+
+        return;
+    }
 
     DeviceFile *dev = findDevice(cmd->path);
     if(!dev) {
         res->header.status = -ENOENT;   // file doesn't exist
     } else {
-        StatCommand *response = (StatCommand *) res;
         response->header.header.status = 0;
         memcpy(&response->buffer, &dev->status, sizeof(struct stat));
     }