diff options
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)"); |