update from main archive 960105 cvs/libc-970107 cvs/libc-970106

8 files changed, 117 insertions, 101 deletions

diff --git a/signal/Makefile b/signal/Makefile
index eac9576895..2d99437208 100644
--- a/signal/Makefile
+++ b/signal/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
+# Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
 
 # The GNU C Library is free software; you can redistribute it and/or
@@ -30,7 +30,7 @@ routines	:= signal raise killpg \
 		   sigstack sigaltstack sigintr \
 		   sigsetops sigempty sigfillset sigaddset sigdelset sigismem \
 		   sigreturn \
-		   siggetmask bsd_signal
+		   siggetmask sysv_signal
 
 tests		:= tst-signal
 
diff --git a/signal/sigaddset.c b/signal/sigaddset.c
index 69185edca6..055e45f6c9 100644
--- a/signal/sigaddset.c
+++ b/signal/sigaddset.c
@@ -1,20 +1,20 @@
 /* Copyright (C) 1991, 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+   This file is part of the GNU C Library.
 
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
 
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-Library General Public License for more details.
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
 
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB.  If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
 #include "sigsetops.h"
 
diff --git a/signal/sigdelset.c b/signal/sigdelset.c
index 0b88a0977b..dc33550d55 100644
--- a/signal/sigdelset.c
+++ b/signal/sigdelset.c
@@ -1,20 +1,20 @@
 /* Copyright (C) 1991, 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+   This file is part of the GNU C Library.
 
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
 
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-Library General Public License for more details.
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
 
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB.  If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
 #include "sigsetops.h"
 
diff --git a/signal/sigempty.c b/signal/sigempty.c
index 5e4bebb27c..9dde24d363 100644
--- a/signal/sigempty.c
+++ b/signal/sigempty.c
@@ -1,22 +1,24 @@
-/* Copyright (C) 1991, 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
 
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-Library General Public License for more details.
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
 
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB.  If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
-#include "sigsetops.h"
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
 
 /* Clear all signals from SET.  */
 int
@@ -29,5 +31,7 @@ sigemptyset (set)
       return -1;
     }
 
-  return __sigemptyset (set);
+  memset (set, 0xff, sizeof (sigset_t));
+
+  return 0;
 }
diff --git a/signal/sigfillset.c b/signal/sigfillset.c
index 6ea4707e63..04c80a55dc 100644
--- a/signal/sigfillset.c
+++ b/signal/sigfillset.c
@@ -1,22 +1,23 @@
-/* Copyright (C) 1991, 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
 
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-Library General Public License for more details.
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
 
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB.  If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
-#include "sigsetops.h"
+#include <errno.h>
+#include <signal.h>
 
 /* Set all signals in SET.  */
 int
@@ -29,5 +30,7 @@ sigfillset (set)
       return -1;
     }
 
-  return __sigfillset (set);
+  memset (set, 0xff, sizeof (sigset_t));
+
+  return 0;
 }
diff --git a/signal/siggetmask.c b/signal/siggetmask.c
index 348fe9a0c3..95b69b7dc6 100644
--- a/signal/siggetmask.c
+++ b/signal/siggetmask.c
@@ -1,21 +1,21 @@
 /* siggetmask -- useless alias for `sigblock (0)' for old Linux compatibility.
-Copyright (C) 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+   Copyright (C) 1996 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
 
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-Library General Public License for more details.
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
 
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB.  If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
 #include <signal.h>
 
diff --git a/signal/sigismem.c b/signal/sigismem.c
index d171517509..73d792a98c 100644
--- a/signal/sigismem.c
+++ b/signal/sigismem.c
@@ -1,20 +1,20 @@
 /* Copyright (C) 1991, 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+   This file is part of the GNU C Library.
 
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
 
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-Library General Public License for more details.
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
 
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB.  If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
 #include "sigsetops.h"
 
diff --git a/signal/signal.h b/signal/signal.h
index 66ab3dd09a..cd833e8783 100644
--- a/signal/signal.h
+++ b/signal/signal.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -47,20 +47,28 @@ typedef __sig_atomic_t sig_atomic_t;
 /* Type of a signal handler.  */
 typedef void (*__sighandler_t) __P ((int));
 
-/* Set the handler for the signal SIG to HANDLER,
-   returning the old handler, or SIG_ERR on error.  */
+/* Set the handler for the signal SIG to HANDLER, returning the old
+   handler, or SIG_ERR on error.
+   By default `signal' has the BSD semantic.  */
 extern __sighandler_t signal __P ((int __sig, __sighandler_t __handler));
 
-#if defined __FAVOR_BSD || defined __USE_XOPEN
-/* The X/Open definition of `signal' conflicts with the BSD version.
-   So they defined another function `bsd_signal'.  We will use this
-   implementation as the official `signal' function if the BSD
-   interface is preferred.  */
-extern __sighandler_t bsd_signal __P ((int __sig, __sighandler_t __handler));
+#if defined __USE_XOPEN && !defined __USE_GNU
+/* The X/Open definition of `signal' specifies the SVID semantic.  Use
+   the additional function `sysv_signal' when X/Open compatibility is
+   requested.  */
+extern __sighandler_t __sysv_signal __P ((int __sig,
+					  __sighandler_t __handler));
+extern __sighandler_t sysv_signal __P ((int __sig, __sighandler_t __handler));
 
-#ifdef __FAVOR_BSD
-#define signal(sig, handler) bsd_signal ((sig), (handler))
+/* Make sure the used `signal' implementation is the SVID version.  */
+#define signal(sig, handler) __sysv_signal ((sig), (handler))
 #endif
+
+#ifdef __USE_XOPEN
+/* The X/Open definition of `signal' conflicts with the BSD version.
+   So they defined another function `bsd_signal'.  */
+extern __sighandler_t __bsd_signal __P ((int __sig, __sighandler_t __handler));
+extern __sighandler_t bsd_signal __P ((int __sig, __sighandler_t __handler));
 #endif
 
 /* Send signal SIG to process number PID.  If PID is zero,
@@ -103,13 +111,14 @@ extern int __sigsetmask __P ((int __mask));
 /* The `sigpause' function has two different interfaces.  The original
    BSD definition defines the argument as a mask of the signal, while
    the more modern interface in X/Open defines it as the signal
-   number.  We go with the more modern version unless the user
-   explitcly selects the BSD version.  */
+   number.  We go with the BSD version unless the user explicitly
+   selects the X/Open version.  */
 extern int __sigpause __P ((int __sig_or_mask, int __is_sig));
 
-#if defined __USE_BSD  && !defined __USE_XOPEN
+#if defined __USE_BSD || defined __USE_GNU
 /* Set the mask of blocked signals to MASK,
    wait for a signal to arrive, and then restore the mask.  */
+extern int sigpause __P ((int __mask));
 #define sigpause(mask) __sigpause ((mask), 0)
 #else
 #ifdef __USE_XOPEN