Further harden glibc malloc metadata against 1-byte overflows.

[thirdparty/glibc.git] / include / signal.h

diff --git a/include/signal.h b/include/signal.h
index 1a14ff3dc7a97b948863719ab7ef97b8043f453c..276a99d80a44afc260b811a0862779daec9e0666 100644 (file)
--- a/include/signal.h
+++ b/include/signal.h
@@ -4,24 +4,68 @@
 #else
 # include <signal/signal.h>
 
+# ifndef _ISOMAC
+libc_hidden_proto (sigemptyset)
+libc_hidden_proto (sigfillset)
+libc_hidden_proto (sigaddset)
+libc_hidden_proto (sigdelset)
+libc_hidden_proto (sigismember)
+extern int __sigpause (int sig_or_mask, int is_sig);
+libc_hidden_proto (__sigpause)
+libc_hidden_proto (raise)
+libc_hidden_proto (__libc_current_sigrtmin)
+libc_hidden_proto (__libc_current_sigrtmax)
+libc_hidden_proto (_sys_siglist)
+
 /* Now define the internal interfaces.  */
-extern __sighandler_t __bsd_signal __P ((int __sig, __sighandler_t __handler));
-extern int __kill __P ((__pid_t __pid, int __sig));
-extern int __sigblock __P ((int __mask));
-extern int __sigsetmask __P ((int __mask));
-extern int __sigprocmask __P ((int __how,
-                              __const sigset_t *__set, sigset_t *__oset));
-extern int __sigsuspend __P ((__const sigset_t *__set));
-extern int __sigwait __P ((__const sigset_t *__set, int *__sig));
-extern int __sigwaitinfo __P ((__const sigset_t *__set, siginfo_t *__info));
-extern int __sigtimedwait __P ((__const sigset_t *__set, siginfo_t *__info,
-                               __const struct timespec *__timeout));
-extern int __sigqueue __P ((__pid_t __pid, int __sig,
-                           __const union sigval __val));
-extern int __sigvec __P ((int __sig, __const struct sigvec *__vec,
-                         struct sigvec *__ovec));
-extern int __sigreturn __P ((struct sigcontext *__scp));
-extern int __sigaltstack __P ((__const struct sigaltstack *__ss,
-                              struct sigaltstack *__oss));
+extern __sighandler_t __bsd_signal (int __sig, __sighandler_t __handler);
+extern int __kill (__pid_t __pid, int __sig);
+extern int __sigaction (int __sig, const struct sigaction *__restrict __act,
+                       struct sigaction *__restrict __oact);
+libc_hidden_proto (__sigaction)
+extern int __sigblock (int __mask);
+extern int __sigsetmask (int __mask);
+extern int __sigprocmask (int __how,
+                         const sigset_t *__set, sigset_t *__oset);
+extern int __sigsuspend (const sigset_t *__set);
+libc_hidden_proto (__sigsuspend)
+#ifndef NO_CANCELLATION
+extern int __sigsuspend_nocancel (const sigset_t *__set) attribute_hidden;
+#endif
+extern int __sigwait (const sigset_t *__set, int *__sig);
+libc_hidden_proto (__sigwait)
+extern int __sigwaitinfo (const sigset_t *__set, siginfo_t *__info);
+libc_hidden_proto (__sigwaitinfo)
+extern int __sigtimedwait (const sigset_t *__set, siginfo_t *__info,
+                          const struct timespec *__timeout);
+libc_hidden_proto (__sigtimedwait)
+extern int __sigqueue (__pid_t __pid, int __sig,
+                      const union sigval __val);
+#ifdef __USE_MISC
+extern int __sigreturn (struct sigcontext *__scp);
+#endif
+extern int __sigaltstack (const struct sigaltstack *__ss,
+                         struct sigaltstack *__oss);
+extern int __libc_sigaction (int sig, const struct sigaction *act,
+                            struct sigaction *oact);
+libc_hidden_proto (__libc_sigaction)
+
+extern int __default_sigpause (int mask);
+extern int __xpg_sigpause (int sig);
+
+/* Simplified sigemptyset() implementation without the parameter checking.  */
+#undef __sigemptyset
+#define __sigemptyset(ss) \
+  ({ __builtin_memset (ss, '\0', sizeof (sigset_t)); 0; })
+
+
+/* Allocate real-time signal with highest/lowest available priority.  */
+extern int __libc_allocate_rtsig (int __high);
+
+#  if IS_IN (rtld)
+extern __typeof (__sigaction) __sigaction attribute_hidden;
+extern __typeof (__libc_sigaction) __libc_sigaction attribute_hidden;
+#  endif
+# endif
 #endif
 #endif