Printf And Sonic At The Winter Olympic Games

The C standard library's print function family tree is basically the Mario Kart character selection screen. You've got printf (the reliable Mario), fprintf (Luigi doing his own thing with file streams), sprintf (Wario buffering strings like he's hoarding coins), and then the "secure" variants with _s suffixes strutting in like Waluigi - supposedly safer but nobody really uses them because they're non-standard and platform-specific.

The _s functions were Microsoft's attempt at fixing buffer overflow vulnerabilities, but they never made it into standard C until C11's Annex K (which is optional and barely implemented). So while sprintf will happily overflow your buffer like it's speedrunning a segfault, sprintf_s will at least check bounds - assuming your compiler even supports it. Most devs just use snprintf instead, which is like choosing Toad: smaller, safer, and actually portable.