#include <stdarg.h>
#include <stddef.h>
-void
+size_t
__sprintf_internal(char* buffer, char* fmt, size_t max_len, va_list vargs);
-void sprintf(char* buffer, char* fmt, ...);
-void snprintf(char* buffer, size_t n, char* fmt, ...);
+size_t
+sprintf(char* buffer, char* fmt, ...);
+size_t
+snprintf(char* buffer, size_t n, char* fmt, ...);
#endif /* __LUNAIX_STDIO_H */