tree 4f0867ecadf9c0e6391833904589385ba1ad6294
parent 76f9569268144fcf06d4d32068cdcc194fa79080
author Lei Zhang <thestig@chromium.org> 1585781495 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1585781495 +0000

Fix insertions into empty name trees.

When a name tree is empty, CPDF_NameTree::AddValueAndName() tries to
find a leaf node to insert into and fails. Instead, just insert into the
root node of the name tree. Add a unit test for this case.

This fixes FPDFDoc_AddAttachment() for the case where the EmbeddedFiles
name tree is empty. Fix the known to be broken
AddAttachmentsToFileWithNoAttachments embedder test case and do further
testing.

Bug: pdfium:1502
Change-Id: Iab189ce612070e0ef268ac6e01a1cbcce96c8d2b
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/67990
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>