| 1 | #include <signal.h> |
| 2 | #include "syscall.h" |
| 3 | |
| 4 | void (*signal(int sig, void (*func)(int)))(int) |
| 5 | { |
| 6 | struct sigaction sa_old, sa = { .sa_handler = func, .sa_flags = SA_RESTART }; |
| 7 | if (__sigaction(sig, &sa, &sa_old) < 0) |
| 8 | return SIG_ERR; |
| 9 | return sa_old.sa_handler; |
| 10 | } |
| 11 | |
| 12 | weak_alias(signal, bsd_signal); |
| 13 | weak_alias(signal, __sysv_signal); |