fix reading problem on 64-bit machines in QProcess and socket engine

QProcessPrivate and QNativeSocketEnginePrivate were reporting a wrong
number of bytes available on 64-bit machines, due to use of size_t in
ioctl. That was required by Irix, which we dropped support for, so we
can also drop size_t

Reviewed-by: Thiago
Task-number: 249537

2 files changed, 5 insertions, 5 deletions

diff --git a/src/corelib/io/qfilesystemwatcher_inotify.cpp b/src/corelib/io/qfilesystemwatcher_inotify.cpp
index 4445e3c..fa44531 100644
--- a/src/corelib/io/qfilesystemwatcher_inotify.cpp
+++ b/src/corelib/io/qfilesystemwatcher_inotify.cpp
@@ -316,7 +316,7 @@ void QInotifyFileSystemWatcherEngine::readFromInotify()
     // qDebug() << "QInotifyFileSystemWatcherEngine::readFromInotify";
 
     int buffSize = 0;
-    ioctl(inotifyFd, FIONREAD, &buffSize);
+    ioctl(inotifyFd, FIONREAD, (char *) &buffSize);
     QVarLengthArray<char, 4096> buffer(buffSize);
     buffSize = read(inotifyFd, buffer.data(), buffSize);
     const char *at = buffer.data();
diff --git a/src/corelib/io/qprocess_unix.cpp b/src/corelib/io/qprocess_unix.cpp
index 37173c8..33d4a47 100644
--- a/src/corelib/io/qprocess_unix.cpp
+++ b/src/corelib/io/qprocess_unix.cpp
@@ -850,10 +850,10 @@ bool QProcessPrivate::processStarted()
 
 qint64 QProcessPrivate::bytesAvailableFromStdout() const
 {
-    size_t nbytes = 0;
+    int nbytes = 0;
     qint64 available = 0;
     if (::ioctl(stdoutChannel.pipe[0], FIONREAD, (char *) &nbytes) >= 0)
-        available = (qint64) *((int *) &nbytes);
+        available = (qint64) nbytes;
 #if defined (QPROCESS_DEBUG)
     qDebug("QProcessPrivate::bytesAvailableFromStdout() == %lld", available);
 #endif
@@ -862,10 +862,10 @@ qint64 QProcessPrivate::bytesAvailableFromStdout() const
 
 qint64 QProcessPrivate::bytesAvailableFromStderr() const
 {
-    size_t nbytes = 0;
+    int nbytes = 0;
     qint64 available = 0;
     if (::ioctl(stderrChannel.pipe[0], FIONREAD, (char *) &nbytes) >= 0)
-        available = (qint64) *((int *) &nbytes);
+        available = (qint64) nbytes;
 #if defined (QPROCESS_DEBUG)
     qDebug("QProcessPrivate::bytesAvailableFromStderr() == %lld", available);
 #endif