add null check

14e1992e · Akira Yumiyama · d39a05e6 · 14e1992e
Commit 14e1992e authored May 12, 2013 by Akira Yumiyama
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src/file.c src/file.c +4 -0

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--- a/src/file.c
+++ b/src/file.c
@@ -250,6 +250,10 @@ mrb_file__gethome(mrb_state *mrb, mrb_value klass)
    }
  }
+  if (home == NULL) {
+    return mrb_nil_value();
+  }
  if (!mrb_file_is_absolute_path(home)) {
    if (argc && strlen(cuser) > 0) {
      mrb_raisef(mrb, E_ARGUMENT_ERROR, "non-absolute home of ~%s", cuser);