Signal Handlers - more safe functions


POSIX realtime extensions demand these too

     aio_error(), clock_gettime(), sigpause(), timer_getoverrun(),
     aio_return(), fdatasync(), sigqueue(), timer_gettime(), aio_suspend(),
     sem_post(), sigset(), timer_settime().

ANSI C Interfaces we determined to be safe

     strcpy(), strcat(), strncpy(), strncat(), and perhaps some others.

This is documented in the signal(9) manpage
good luck finding that information on other OSes