tree f64d7039e2e48bb2b1144328f827cd0433403eb9
parent cff6cfc61523389959346693a0d3d46b05c7b8ed
author Hui Yingst <nigi@chromium.org> 1591822699 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1591822699 +0000

Change experimental API FPDFAttachment_GetFile().

FPDFAttachment_GetFile() returns 0 when retrieving attachment data
fails or when the attachment size is 0-byte. Since PDF documents could
have 0-byte attachments embedded, we need this API to distinguish the
two situations.

This CL changes the return value for FPDFAttachment_GetFile() to
FPDF_BOOL type to indicate success/failure on retrieving attachment
file data, and adds an output parameter |out_buflen| to return the
attachment's size in bytes.

Bug: pdfium:1537
Change-Id: I390b33c9bc9a5ee223db9e101f2817b468b1b040
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/70474
Commit-Queue: Hui Yingst <nigi@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>