qt 6.5.1 original

tests/auto/corelib/io/qprocess/fileWriterProcess/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## fileWriterProcess Binary:
+#####################################################################
+
+qt_internal_add_executable(fileWriterProcess
+    OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    SOURCES
+        main.cpp
+)

tests/auto/corelib/io/qprocess/fileWriterProcess/main.cpp

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+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+#include <QCoreApplication>
+#include <QFile>
+
+#include <stdio.h>
+
+int main(int argc, char **argv)
+{
+    QCoreApplication ca(argc, argv);
+    QFile f;
+    f.open(stdin, QIODevice::ReadOnly);
+    QByteArray input;
+    char buf[1024];
+    qint64 len;
+    while ((len = f.read(buf, 1024)) > 0)
+        input.append(buf, len);
+    f.close();
+    QFile f2("fileWriterProcess.txt");
+    if (!f2.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
+        fprintf(stderr, "Cannot open %s for writing: %s\n",
+                qPrintable(f2.fileName()), qPrintable(f2.errorString()));
+        return 1;
+    }
+    f2.write(input);
+    f2.close();
+    return 0;
+}