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-rw-r--r--lib/x1000-installer/include/xf_stream.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/lib/x1000-installer/include/xf_stream.h b/lib/x1000-installer/include/xf_stream.h
new file mode 100644
index 0000000000..adbde1c6db
--- /dev/null
+++ b/lib/x1000-installer/include/xf_stream.h
@@ -0,0 +1,64 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2021 Aidan MacDonald
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef _XF_STREAM_H_
+#define _XF_STREAM_H_
+
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/types.h> /* ssize_t */
+#include "microtar.h"
+
+struct xf_stream;
+
+struct xf_stream_ops {
+ off_t(*xget_size)(struct xf_stream* s);
+ ssize_t(*xread)(struct xf_stream* s, void* buf, size_t len);
+ ssize_t(*xwrite)(struct xf_stream* s, const void* buf, size_t len);
+ int(*xclose)(struct xf_stream* s);
+};
+
+struct xf_stream {
+ intptr_t data;
+ const struct xf_stream_ops* ops;
+};
+
+inline size_t xf_stream_get_size(struct xf_stream* s)
+{ return s->ops->xget_size(s); }
+
+inline ssize_t xf_stream_read(struct xf_stream* s, void* buf, size_t len)
+{ return s->ops->xread(s, buf, len); }
+
+inline ssize_t xf_stream_write(struct xf_stream* s, const void* buf, size_t len)
+{ return s->ops->xwrite(s, buf, len); }
+
+inline int xf_stream_close(struct xf_stream* s)
+{ return s->ops->xclose(s); }
+
+int xf_open_file(const char* file, int flags, struct xf_stream* s);
+int xf_open_tar(mtar_t* mtar, const char* file, struct xf_stream* s);
+int xf_create_tar(mtar_t* mtar, const char* file, size_t size, struct xf_stream* s);
+
+/* Utility function needed for a few things */
+int xf_stream_read_lines(struct xf_stream* s, char* buf, size_t bufsz,
+ int(*callback)(int n, char* buf, void* arg), void* arg);
+
+#endif /* _XF_STREAM_H_ */