qt, cpp: Support larger size-hint on 32 bit builds

* NEWS: Mention this.
* lang/cpp/src/data.h, lang/cpp/src/data.cpp (Data::setSizeHint): New.
* lang/qt/src/qgpgmedecryptjob.cpp,
 lang/qt/src/qgpgmedecryptverifyarchivejob.cpp,
 lang/qt/src/qgpgmedecryptverifyjob.cpp,
 lang/qt/src/qgpgmeencryptjob.cpp,
 lang/qt/src/qgpgmesignencryptjob.cpp,
 lang/qt/src/qgpgmesignjob.cpp,
 lang/qt/src/qgpgmeverifydetachedjob.cpp,
 lang/qt/src/qgpgmeverifyopaquejob.cpp: Set size for input IODevice.

--
This fixes the case where the old detection of the size of QIOdevice
using seek would overflow and instead explicitly uses QIODevice::size
to check for the size and pass it through as an uint64.

GnuPG-Bug-Id: T6534

1 files changed, 4 insertions, 1 deletions

diff --git a/lang/qt/src/qgpgmesignjob.cpp b/lang/qt/src/qgpgmesignjob.cpp
index e89b9457..a5e4f0f2 100644
--- a/lang/qt/src/qgpgmesignjob.cpp
+++ b/lang/qt/src/qgpgmesignjob.cpp
@@ -81,7 +81,10 @@ static QGpgMESignJob::result_type sign(Context *ctx, QThread *thread,
     const _detail::ToThreadMover sgMover(signature, thread);
 
     QGpgME::QIODeviceDataProvider in(plainText);
-    const Data indata(&in);
+    Data indata(&in);
+    if (!plainText->isSequential()) {
+        indata.setSizeHint(plainText->size());
+    }
 
     ctx->clearSigningKeys();
     Q_FOREACH (const Key &signer, signers)