sigset_t change (part 5 of 5)

-----------------------------

Most of the userland changes are in libc. For both the alpha
and the i386 setjmp has been changed to accomodate for the
new sigset_t. Internally, libc is mostly rewritten to use the
new syscalls. The exception is in compat-43/sigcompat.c

The POSIX thread library has also been rewritten to use the
new sigset_t. Except, that it currently only handles NSIG
signals instead of the maximum _SIG_MAXSIG. This should not
be a problem because current applications don't use any
signals higher than NSIG.

There are version bumps for the following libraries:
  libdialog
  libreadline
  libc
  libc_r
  libedit
  libftpio
  libss

These libraries either a) have one of the modified structures
visible in the interface, or b) use sigset_t internally and
may cause breakage if new binaries are used against libraries
that don't have the sigset_t change. This not an immediate
issue, but will be as soon as applications start using the
new range to its fullest.

NOTE: libncurses already had an version bump and has not been
      given one now.

NOTE: doscmd is a real casualty and has been disconnected for
      the moment. Reconnection will eventually happen after
      doscmd has been fixed. I'm aware that being the last one
      to touch it, I'm automaticly promoted to being maintainer.
      According to good taste this means that I will receive a
      badge which either will be glued or mechanically stapled,
      drilled or otherwise violently forced onto me :-)

NOTE: pcvt/vttest cannot be compiled with -traditional. The
      change cause sys/types to be included along the way which
      contains the const and volatile modifiers. I don't consider
      this a solution, but more a workaround.

2 files changed, 91 insertions, 8 deletions

diff --git a/include/signal.h b/include/signal.h
index 69832e0..2e846e6 100644
--- a/include/signal.h
+++ b/include/signal.h
@@ -31,6 +31,8 @@
  * SUCH DAMAGE.
  *
  *	@(#)signal.h	8.3 (Berkeley) 3/30/94
+ *
+ * $FreeBSD$
  */
 
 #ifndef _SIGNAL_H_
@@ -40,6 +42,7 @@
 #include <sys/_posix.h>
 #include <machine/ansi.h>
 #include <sys/signal.h>
+#include <sys/time.h>
 
 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
 extern __const char *__const sys_signame[NSIG];
@@ -67,18 +70,18 @@ int	sigwait __P((const sigset_t *, int *));
 
 __BEGIN_DECLS
 int sigqueue __P((_BSD_PID_T_, int, const union sigval));
-int sigtimedwait __P((const sigset_t *, siginfo_t *));
+int sigtimedwait __P((const sigset_t *, siginfo_t *, const struct timespec *));
 int sigwaitinfo __P((const sigset_t *, siginfo_t *));
 __END_DECLS
 
 #endif
 #ifndef _POSIX_SOURCE
 int	killpg __P((_BSD_PID_T_, int));
-int	sigaltstack __P((const struct sigaltstack *, struct sigaltstack *)); 
+int	sigaltstack __P((const stack_t *, stack_t *)); 
 int	sigblock __P((int));
 int	siginterrupt __P((int, int));
 int	sigpause __P((int));
-int	sigreturn __P((struct sigcontext *));
+int	sigreturn __P((ucontext_t *));
 int	sigsetmask __P((int));
 int	sigstack __P((const struct sigstack *, struct sigstack *));
 int	sigvec __P((int, struct sigvec *, struct sigvec *));
@@ -89,11 +92,55 @@ __END_DECLS
 
 #ifndef _ANSI_SOURCE
 /* List definitions after function declarations, or Reiser cpp gets upset. */
-#define	sigaddset(set, signo)	(*(set) |= 1 << ((signo) - 1), 0)
-#define	sigdelset(set, signo)	(*(set) &= ~(1 << ((signo) - 1)), 0)
-#define	sigemptyset(set)	(*(set) = 0, 0)
-#define	sigfillset(set)		(*(set) = ~(sigset_t)0, 0)
-#define	sigismember(set, signo)	((*(set) & (1 << ((signo) - 1))) != 0)
+extern __inline int sigaddset(sigset_t *set, int signo)
+{
+
+	if (signo <= 0 || signo > _SIG_MAXSIG) {
+		/* errno = EINVAL; */
+		return (-1);
+	}
+	set->__bits[_SIG_WORD(signo)] |= _SIG_BIT(signo);
+	return (0);
+}
+
+extern __inline int sigdelset(sigset_t *set, int signo)
+{
+
+	if (signo <= 0 || signo > _SIG_MAXSIG) {
+		/* errno = EINVAL; */
+		return (-1);
+	}
+	set->__bits[_SIG_WORD(signo)] &= ~_SIG_BIT(signo);
+	return (0);
+}
+
+extern __inline int sigemptyset(sigset_t *set)
+{
+	int i;
+
+	for (i = 0; i < _SIG_WORDS; i++)
+		set->__bits[i] = 0;
+	return (0);
+}
+
+extern __inline int sigfillset(sigset_t *set)
+{
+	int i;
+
+	for (i = 0; i < _SIG_WORDS; i++)
+		set->__bits[i] = ~(unsigned int)0;
+	return (0);
+}
+
+extern __inline int sigismember(__const sigset_t *set, int signo)
+{
+
+	if (signo <= 0 || signo > _SIG_MAXSIG) {
+		/* errno = EINVAL; */
+		return (-1);
+	}
+	return ((set->__bits[_SIG_WORD(signo)] & _SIG_BIT(signo)) ? 1 : 0);
+}
 #endif /* !_ANSI_SOURCE */
 
 #endif /* !_SIGNAL_H_ */
diff --git a/include/ucontext.h b/include/ucontext.h
new file mode 100644
index 0000000..f868980
--- /dev/null
+++ b/include/ucontext.h
@@ -0,0 +1,36 @@
+/*-
+ * Copyright (c) 1999 Marcel Moolenaar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer 
+ *    in this position and unchanged.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _UCONTEXT_H_
+#define _UCONTEXT_H_ 1
+
+#include <sys/ucontext.h>
+
+#endif /* _UCONTEXT_H_ */