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| author | Tor Andersson <tor.andersson@artifex.com> | 2013-07-12 16:11:03 +0200 |
|---|---|---|
| committer | Tor Andersson <tor.andersson@artifex.com> | 2013-07-12 16:11:03 +0200 |
| commit | bc8b6cc1e73686a97a3b2ea3160ec851c850d3f1 (patch) | |
| tree | f0f5cdd65fa64af6e4b9c2d8f7ec9c7192579719 /source/pdf/pdf-page.c | |
| parent | ee8434b9ab301f7f936f5766c41592df6888785d (diff) | |
| download | mupdf-bc8b6cc1e73686a97a3b2ea3160ec851c850d3f1.tar.xz | |
Throw exception on invalid page objects when looking up page numbers.
Also handle exceptions when parsing link destinations.
Diffstat (limited to 'source/pdf/pdf-page.c')
| -rw-r--r-- | source/pdf/pdf-page.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/source/pdf/pdf-page.c b/source/pdf/pdf-page.c index 9f802927..66e72bc7 100644 --- a/source/pdf/pdf-page.c +++ b/source/pdf/pdf-page.c @@ -129,11 +129,14 @@ pdf_lookup_page_number(pdf_document *doc, pdf_obj *node) int total = 0; pdf_obj *parent, *parent2; + if (strcmp(pdf_to_name(pdf_dict_gets(node, "Type")), "Page") != 0) + fz_throw(ctx, FZ_ERROR_GENERIC, "invalid page object"); + parent2 = parent = pdf_dict_gets(node, "Parent"); fz_var(parent); fz_try(ctx) { - while (parent) + while (pdf_is_dict(parent)) { if (pdf_mark_obj(parent)) fz_throw(ctx, FZ_ERROR_GENERIC, "cycle in page tree (parents)"); |