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Diffstat (limited to 'libc/signal')
-rw-r--r--libc/signal/sigaction.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/libc/signal/sigaction.c b/libc/signal/sigaction.c
index 96e3d938d..eb6b43a49 100644
--- a/libc/signal/sigaction.c
+++ b/libc/signal/sigaction.c
@@ -32,6 +32,12 @@ int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oa
int result;
struct kernel_sigaction kact, koact;
+#ifdef SIGCANCEL
+ if (sig == SIGCANCEL) {
+ __set_errno (EINVAL);
+ return -1;
+ }
+#endif
if (act) {
kact.k_sa_handler = act->sa_handler;
memcpy (&kact.sa_mask, &act->sa_mask, sizeof (kact.sa_mask));
@@ -43,7 +49,7 @@ int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oa
/* XXX The size argument hopefully will have to be changed to the
real size of the user-level sigset_t. */
- result = __rt_sigaction(sig, act ? __ptrvalue (&kact) : NULL,
+ result = __syscall_rt_sigaction(sig, act ? __ptrvalue (&kact) : NULL,
oact ? __ptrvalue (&koact) : NULL, _NSIG / 8);
if (oact && result >= 0) {
@@ -67,6 +73,12 @@ int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oa
int result;
struct old_kernel_sigaction kact, koact;
+#ifdef SIGCANCEL
+ if (sig == SIGCANCEL) {
+ __set_errno (EINVAL);
+ return -1;
+ }
+#endif
if (act) {
kact.k_sa_handler = act->sa_handler;
kact.sa_mask = act->sa_mask.__val[0];
@@ -75,7 +87,7 @@ int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oa
kact.sa_restorer = act->sa_restorer;
# endif
}
- result = __sigaction(sig, act ? __ptrvalue (&kact) : NULL,
+ result = __syscall_sigaction(sig, act ? __ptrvalue (&kact) : NULL,
oact ? __ptrvalue (&koact) : NULL);
if (oact && result >= 0) {