+
+static
+int
+toErrno(DWORD rc)
+{
+ switch (rc) {
+ case ERROR_FILE_NOT_FOUND: return ENOENT;
+ case ERROR_PATH_NOT_FOUND: return ENOENT;
+ case ERROR_TOO_MANY_OPEN_FILES: return EMFILE;
+ case ERROR_ACCESS_DENIED: return EACCES;
+ case ERROR_INVALID_HANDLE: return EBADF; /* kinda sorta */
+ case ERROR_NOT_ENOUGH_MEMORY: return ENOMEM;
+ case ERROR_INVALID_ACCESS: return EINVAL;
+ case ERROR_INVALID_DATA: return EINVAL;
+ case ERROR_OUTOFMEMORY: return ENOMEM;
+ case ERROR_SHARING_VIOLATION: return EACCES;
+ case ERROR_LOCK_VIOLATION: return EACCES;
+ case ERROR_ALREADY_EXISTS: return EEXIST;
+ case ERROR_BUSY: return EBUSY;
+ case ERROR_BROKEN_PIPE: return EPIPE;
+ case ERROR_PIPE_CONNECTED: return EBUSY;
+ case ERROR_PIPE_LISTENING: return EBUSY;
+ case ERROR_NOT_CONNECTED: return EINVAL;
+
+ case ERROR_NOT_OWNER: return EPERM;
+ case ERROR_DIRECTORY: return ENOTDIR;
+ case ERROR_FILE_INVALID: return EACCES;
+ case ERROR_FILE_EXISTS: return EEXIST;
+
+ default:
+ return rc;
+ }
+}