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

* 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

7
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,10 @@
2001-02-16 Egor Duda <deo@logos-m.ru>
* signal.cc (signal): Prohibit setting handlers for SIGKILL and
SIGSTOP
* signal.cc (sigaction): Ditto
* syscalls.cc (_lseek): Return EINVAL on invalid input
Wed Feb 14 14:54:40 2001 Christophe Iasci <chrisiasci@aol.com> Wed Feb 14 14:54:40 2001 Christophe Iasci <chrisiasci@aol.com>
* dlfcn.cc (dlopen): Do not call LoadLibrary with a NULL pointer, when * dlfcn.cc (dlopen): Do not call LoadLibrary with a NULL pointer, when

4
winsup/cygwin/signal.cc
View File

@ -46,7 +46,7 @@ signal (int sig, _sig_func_ptr func)
_sig_func_ptr prev; _sig_func_ptr prev;
/* check that sig is in right range */ /* check that sig is in right range */
if (sig < 0 || sig >= NSIG) if (sig < 0 || sig >= NSIG || sig == SIGKILL || sig == SIGSTOP)
{ {
set_errno (EINVAL); set_errno (EINVAL);
syscall_printf ("SIG_ERR = signal (%d, %p)", sig, func); 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 (newact)
{ {
if ((sig == SIGKILL || sig == SIGSTOP) && newact->sa_handler != SIG_DFL) if (sig == SIGKILL || sig == SIGSTOP)
{ {
set_errno (EINVAL); set_errno (EINVAL);
return -1; return -1;

7
winsup/cygwin/syscalls.cc
View File

@ -447,7 +447,12 @@ _lseek (int fd, off_t pos, int dir)
off_t res; off_t res;
sigframe thisframe (mainthread); sigframe thisframe (mainthread);
if (fdtab.not_open (fd)) if ( dir != SEEK_SET && dir != SEEK_CUR && dir != SEEK_END )
{
set_errno ( EINVAL );
res = -1;
}
else if (fdtab.not_open (fd))
{ {
set_errno (EBADF); set_errno (EBADF);
res = -1; res = -1;