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* signal.cc (signal): Prohibit setting handlers for SIGKILL and SIGSTOP

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* signal.cc (sigaction): Ditto
* syscalls.cc (_lseek): Return EINVAL on invalid input
This commit is contained in:
Egor Duda
2001-02-16 18:49:20 +00:00
parent 00aae5a740
commit fc68bf34bb
3 changed files with 15 additions and 3 deletions
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4
winsup/cygwin/signal.cc
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@ -46,7 +46,7 @@ signal (int sig, _sig_func_ptr func)
_sig_func_ptr prev;
/* check that sig is in right range */
if (sig < 0 || sig >= NSIG)
if (sig < 0 || sig >= NSIG || sig == SIGKILL || sig == SIGSTOP)
{
set_errno (EINVAL);
syscall_printf ("SIG_ERR = signal (%d, %p)", sig, func);
@ -260,7 +260,7 @@ sigaction (int sig, const struct sigaction *newact, struct sigaction *oldact)
if (newact)
{
if ((sig == SIGKILL || sig == SIGSTOP) && newact->sa_handler != SIG_DFL)
if (sig == SIGKILL || sig == SIGSTOP)
{
set_errno (EINVAL);
return -1;