tree fa3501abb4cfcffecc3f3dcd79c273ab67103fed
parent 148588f7d96270f531a6e12fe04aedb51eb2c95f
author Miklos Vajna <vmiklos@collabora.co.uk> 1595918127 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1595918127 +0000

Add FPDFSignatureObj_GetSubFilter() API

This follows the same pattern as FPDFSignatureObj_GetByteRange(), so the
client has to call this function twice, but allocation of the buffer
happens outside pdfium.

The buffer format is documented to be NUL-terminated ASCII, since the
PDF reference gives examples on how the SubFilter should be named, and
all of them are ASCII, so probably UTF-8 or UTF-16 would be an overkill
here.

Change-Id: I3a9b360f219578745ea501cbdfb39a117ca5f2bc
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/71970
Commit-Queue: Miklos V <vmiklos@collabora.co.uk>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>