libio: split stdin/stdout code from the rest of the file streams

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 36 insertions, 0 deletions

diff --git a/lib/io/src/std.c b/lib/io/src/std.c
new file mode 100644
index 0000000..212fa6f
--- /dev/null
+++ b/lib/io/src/std.c
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * std.c
+ *
+ * Copyright (C) 2023 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "config.h"
+#include "compat.h"
+#include "io/file.h"
+#include "io/std.h"
+#include "sqfs/io.h"
+
+#if defined(_WIN32) || defined(__WINDOWS__)
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#else
+#include <unistd.h>
+#define STD_INPUT_HANDLE STDIN_FILENO
+#define STD_OUTPUT_HANDLE STDOUT_FILENO
+#define GetStdHandle(hnd) hnd
+#endif
+
+int istream_open_stdin(sqfs_istream_t **out)
+{
+	sqfs_file_handle_t hnd = GetStdHandle(STD_INPUT_HANDLE);
+
+	return istream_open_handle(out, "stdin", hnd);
+}
+
+int ostream_open_stdout(sqfs_ostream_t **out)
+{
+	sqfs_file_handle_t hnd = GetStdHandle(STD_OUTPUT_HANDLE);
+
+	return ostream_open_handle(out, "stdout", hnd,
+				   SQFS_FILE_OPEN_NO_SPARSE);
+}