Squash commits for public release

kernel/include/libkern/scanf.h

@@ -0,0 +1,17 @@
+#ifndef _KERNEL_LIBKERN_SCANF_H
+#define _KERNEL_LIBKERN_SCANF_H
+
+#include <libkern/types.h>
+
+#define EOF (-1)
+
+typedef int (*scanf_lookupch_callback)(void* callback_params);
+typedef int (*scanf_getch_callback)(void* callback_params);
+typedef int (*scanf_putch_callback)(char ch, char* buf_base, size_t* written, void* callback_params);
+
+int vsscanf(const char* buf, const char* fmt, va_list arg);
+int sscanf(const char* buf, const char* fmt, ...);
+
+int scanf_engine(const char* format, scanf_lookupch_callback lookupch, scanf_getch_callback getch, void* callback_params, va_list arg);
+
+#endif // _KERNEL_LIBKERN_SCANF_H