// system IO interface (these are the sys functions that need to be implemented in a new driver atm)
//
-/// an error will cause the entire program to exit
+/// Causes the entire program to exit ASAP.
+/// Trailing \n should be omitted.
void Sys_Error (const char *error, ...) DP_FUNC_PRINTF(1) DP_FUNC_NORETURN;
/// (may) output text to terminal which launched program
-void Sys_Print(const char *text);
-/// for the console to report failures inside Con_Printf()
+/// is POSIX async-signal-safe
+/// textlen excludes any (optional) \0 terminator
+void Sys_Print(const char *text, size_t textlen);
+/// used to report failures inside Con_Printf()
void Sys_Printf(const char *fmt, ...);
/// INFO: This is only called by Host_Shutdown so we dont need testing for recursion
void Sys_SDL_Shutdown(void);
-void Sys_Quit (int returnvalue);
/*! on some build/platform combinations (such as Linux gcc with the -pg
* profiling option) this can turn on/off profiling, used primarily to limit