diff options
Diffstat (limited to 'src/signal/sigaction.c')
| -rw-r--r-- | src/signal/sigaction.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/signal/sigaction.c b/src/signal/sigaction.c index 1f09bb96..5499bd18 100644 --- a/src/signal/sigaction.c +++ b/src/signal/sigaction.c @@ -12,12 +12,26 @@ void __restore(), __restore_rt(); static pthread_t dummy(void) { return 0; } weak_alias(dummy, __pthread_self_def); +static unsigned long handler_set[_NSIG/(8*sizeof(long))]; + +void __get_handler_set(sigset_t *set) +{ + memcpy(set, handler_set, sizeof handler_set); +} + int __libc_sigaction(int sig, const struct sigaction *restrict sa, struct sigaction *restrict old) { struct k_sigaction ksa, ksa_old; + if (sig >= (unsigned)_NSIG) { + errno = EINVAL; + return -1; + } if (sa) { - if ((uintptr_t)sa->sa_handler > 1UL) + if ((uintptr_t)sa->sa_handler > 1UL) { + a_or_l(handler_set+(sig-1)/(8*sizeof(long)), + 1UL<<(sig-1)%(8*sizeof(long))); __pthread_self_def(); + } ksa.handler = sa->sa_handler; ksa.flags = sa->sa_flags | SA_RESTORER; ksa.restorer = (sa->sa_flags & SA_SIGINFO) ? __restore_rt : __restore; |