commit e0cb687c71d555b55cc30ec59c9b338a0e83f77f
author thestig <thestig@chromium.org> Thu Sep 01 13:41:10 2016 -0700
committer Commit bot <commit-bot@chromium.org> Thu Sep 01 13:41:11 2016 -0700
tree 73c1e1ecd9b1b419ac4cb752e0ba8ade519bcbe6
parent eadff195ea8a8e0d1f400bd8910873ce8e38635f

Use unsigned page indexes in CPDF_HintTables.

Fix up callers from CPDF_DataAvail.

Review-Url: https://codereview.chromium.org/2294383003

fpdfsdk/fpdf_dataavail.cpp

diff --git a/fpdfsdk/fpdf_dataavail.cpp b/fpdfsdk/fpdf_dataavail.cpp
index 7b9ba32..1a83fdf 100644
--- a/fpdfsdk/fpdf_dataavail.cpp
+++ b/fpdfsdk/fpdf_dataavail.cpp
@@ -162,6 +162,8 @@
                                             FX_DOWNLOADHINTS* hints) {
   if (!avail || !hints)
     return PDF_DATA_ERROR;
+  if (page_index < 0)
+    return PDF_DATA_NOTAVAIL;
   CFPDF_DownloadHintsWrap hints_wrap(hints);
   return CFPDFDataAvailFromFPDFAvail(avail)->m_pDataAvail->IsPageAvail(
       page_index, &hints_wrap);