path: root/src/signal/signal.c

#include <signal.h> #include "syscall.h" void (*signal(int sig, void (*func)(int)))(int) { struct sigaction sa_old, sa = { .sa_handler = func, .sa_flags = SA_RESTART }; if (__sigaction(sig, &sa, &sa_old) < 0) return SIG_ERR; return sa_old.sa_handler; } weak_alias(signal, bsd_signal); weak_alias(signal, __sysv_signal);