update licenses and sync with glibc

23 files changed, 493 insertions, 421 deletions

diff --git a/libc/signal/killpg.c b/libc/signal/killpg.c
index e75cfc483..1fcf6bfa5 100644
--- a/libc/signal/killpg.c
+++ b/libc/signal/killpg.c
@@ -2,19 +2,19 @@
    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.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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.
+   Lesser 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
 
 #include <errno.h>
 #include <signal.h>
@@ -23,13 +23,16 @@
 /* Send SIG to all processes in process group PGRP.
    If PGRP is zero, send SIG to all processes in
    the current process's process group.  */
-int killpg ( __pid_t pgrp, int sig)
+int
+killpg (pgrp, sig)
+     __pid_t pgrp;
+     int sig;
 {
-    if (pgrp < 0)
+  if (pgrp < 0)
     {
-	__set_errno (EINVAL);
-	return -1;
+      __set_errno (EINVAL);
+      return -1;
     }
 
-    return kill (- pgrp, sig);
+  return kill (- pgrp, sig);
 }
diff --git a/libc/signal/sigaction.c b/libc/signal/sigaction.c
index eb6b43a49..0ead76ef6 100644
--- a/libc/signal/sigaction.c
+++ b/libc/signal/sigaction.c
@@ -1,107 +1,114 @@
-/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1997,1998,1999,2000,2002,2003 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.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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.
+   Lesser 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
 
 #include <errno.h>
 #include <signal.h>
 #include <string.h>
+
 #include <sys/syscall.h>
+
+
+/* The difference here is that the sigaction structure used in the
+   kernel is not the same as we use in the libc.  Therefore we must
+   translate it here.  */
 #include <bits/kernel_sigaction.h>
 
+int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact);
 
 #if defined __NR_rt_sigaction
 
 /* If ACT is not NULL, change the action for SIG to *ACT.
    If OACT is not NULL, put the old action for SIG in *OACT.  */
-int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
+int
+__libc_sigaction (sig, act, oact)
+     int sig;
+     const struct sigaction *act;
+     struct sigaction *oact;
 {
-    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));
-	kact.sa_flags = act->sa_flags;
+	int result;
+	struct kernel_sigaction kact, koact;
+
+	if (act) {
+		kact.k_sa_handler = act->sa_handler;
+		memcpy (&kact.sa_mask, &act->sa_mask, sizeof (kact.sa_mask));
+		kact.sa_flags = act->sa_flags;
 # ifdef HAVE_SA_RESTORER
-	kact.sa_restorer = act->sa_restorer;
+		kact.sa_restorer = act->sa_restorer;
 # endif
-    }
-
-    /* XXX The size argument hopefully will have to be changed to the
-       real size of the user-level sigset_t.  */
-    result = __syscall_rt_sigaction(sig, act ? __ptrvalue (&kact) : NULL,
-	    oact ? __ptrvalue (&koact) : NULL, _NSIG / 8);
-
-    if (oact && result >= 0) {
-	oact->sa_handler = koact.k_sa_handler;
-	memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (oact->sa_mask));
-	oact->sa_flags = koact.sa_flags;
+	}
+	
+	/* XXX The size argument hopefully will have to be changed to the
+	   real size of the user-level sigset_t.  */
+	result = __syscall_rt_sigaction(sig,
+			       act ? __ptrvalue (&kact) : NULL,
+			       oact ? __ptrvalue (&koact) : NULL, _NSIG / 8);
+
+	if (oact && result >= 0) {
+		oact->sa_handler = koact.k_sa_handler;
+		memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (oact->sa_mask));
+		oact->sa_flags = koact.sa_flags;
 # ifdef HAVE_SA_RESTORER
-	oact->sa_restorer = koact.sa_restorer;
+		oact->sa_restorer = koact.sa_restorer;
 # endif
-    }
-    return result;
-}
+	}
 
+	return result;
+}
 
 #else
 
 /* If ACT is not NULL, change the action for SIG to *ACT.
    If OACT is not NULL, put the old action for SIG in *OACT.  */
-int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
+int
+__libc_sigaction (sig, act, oact)
+     int sig;
+     const struct sigaction *act;
+     struct sigaction *oact;
 {
-    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];
-	kact.sa_flags = act->sa_flags;
+	int result;
+	struct old_kernel_sigaction kact, koact;
+
+	if (act) {
+		kact.k_sa_handler = act->sa_handler;
+		kact.sa_mask = act->sa_mask.__val[0];
+		kact.sa_flags = act->sa_flags;
 # ifdef HAVE_SA_RESTORER
-	kact.sa_restorer = act->sa_restorer;
+		kact.sa_restorer = act->sa_restorer;
 # endif
-    }
-    result = __syscall_sigaction(sig, act ? __ptrvalue (&kact) : NULL,
-	    oact ? __ptrvalue (&koact) : NULL);
-
-    if (oact && result >= 0) {
-	oact->sa_handler = koact.k_sa_handler;
-	oact->sa_mask.__val[0] = koact.sa_mask;
-	oact->sa_flags = koact.sa_flags;
+	}
+
+	result = __syscall_sigaction(sig,
+			       act ? __ptrvalue (&kact) : NULL,
+			       oact ? __ptrvalue (&koact) : NULL);
+
+	if (oact && result >= 0) {
+		oact->sa_handler = koact.k_sa_handler;
+		oact->sa_mask.__val[0] = koact.sa_mask;
+		oact->sa_flags = koact.sa_flags;
 # ifdef HAVE_SA_RESTORER
-	oact->sa_restorer = koact.sa_restorer;
+		oact->sa_restorer = koact.sa_restorer;
 # endif
-    }
-    return result;
+	}
+
+	return result;
 }
 
 #endif
 
-weak_alias(__libc_sigaction, sigaction)
-
+weak_alias (__libc_sigaction, __sigaction)
+weak_alias (__libc_sigaction, sigaction)
diff --git a/libc/signal/sigaddset.c b/libc/signal/sigaddset.c
index 2e4f5c540..e5813c117 100644
--- a/libc/signal/sigaddset.c
+++ b/libc/signal/sigaddset.c
@@ -1,31 +1,34 @@
-/* Copyright (C) 1991, 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1996, 2003 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.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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.
+   Lesser 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
 
 #include "sigsetops.h"
 
 /* Add SIGNO to SET.  */
-int sigaddset (sigset_t *set, int signo)
+int
+sigaddset (set, signo)
+     sigset_t *set;
+     int signo;
 {
-    if (set == NULL || signo <= 0 || signo >= NSIG)
+  if (set == NULL || signo <= 0 || signo >= NSIG)
     {
-	__set_errno (EINVAL);
-	return -1;
+      __set_errno (EINVAL);
+      return -1;
     }
 
-    return __sigaddset (set, signo);
+  return __sigaddset (set, signo);
 }
diff --git a/libc/signal/sigandset.c b/libc/signal/sigandset.c
index a09e102ae..4e1abd969 100644
--- a/libc/signal/sigandset.c
+++ b/libc/signal/sigandset.c
@@ -2,19 +2,19 @@
    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.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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.
+   Lesser 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
 
 #include <errno.h>
 #define __USE_GNU
@@ -23,13 +23,17 @@
 #include <stddef.h>
 
 /* Combine sets LEFT and RIGHT by logical AND and place result in DEST.  */
-int sigandset (sigset_t *dest, const sigset_t *left, const sigset_t *right)
+int
+sigandset (dest, left, right)
+     sigset_t *dest;
+     const sigset_t *left;
+     const sigset_t *right;
 {
-    if (dest == NULL || left == NULL || right == NULL)
+  if (dest == NULL || left == NULL || right == NULL)
     {
-	__set_errno (EINVAL);
-	return -1;
+      __set_errno (EINVAL);
+      return -1;
     }
 
-    return __sigandset (dest, left, right);
+  return __sigandset (dest, left, right);
 }
diff --git a/libc/signal/sigblock.c b/libc/signal/sigblock.c
index 1d673f454..c02c234b6 100644
--- a/libc/signal/sigblock.c
+++ b/libc/signal/sigblock.c
@@ -17,11 +17,10 @@
    02111-1307 USA.  */
 
 #include <errno.h>
-#define __USE_GNU
 #include <signal.h>
 
 /* Block signals in MASK, returning the old mask.  */
-int sigblock (int mask)
+int __sigblock (int mask)
 {
     register unsigned int sig;
     sigset_t set, oset;
@@ -53,3 +52,4 @@ int sigblock (int mask)
     return mask;
 }
 
+strong_alias (__sigblock, sigblock)
diff --git a/libc/signal/sigdelset.c b/libc/signal/sigdelset.c
index 76279a945..16bc9ea4a 100644
--- a/libc/signal/sigdelset.c
+++ b/libc/signal/sigdelset.c
@@ -1,31 +1,34 @@
-/* Copyright (C) 1991, 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1996, 2003 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.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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.
+   Lesser 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
 
 #include "sigsetops.h"
 
 /* Add SIGNO to SET.  */
-int sigdelset (sigset_t *set, int signo)
+int
+sigdelset (set, signo)
+     sigset_t *set;
+     int signo;
 {
-    if (set == NULL || signo <= 0 || signo >= NSIG)
+  if (set == NULL || signo <= 0 || signo >= NSIG)
     {
-	__set_errno (EINVAL);
-	return -1;
+      __set_errno (EINVAL);
+      return -1;
     }
 
-    return __sigdelset (set, signo);
+  return __sigdelset (set, signo);
 }
diff --git a/libc/signal/sigempty.c b/libc/signal/sigempty.c
index 36b8f63fa..75b5be420 100644
--- a/libc/signal/sigempty.c
+++ b/libc/signal/sigempty.c
@@ -1,35 +1,37 @@
-/* Copyright (C) 1991, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991,96,97,2002 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.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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.
+   Lesser 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
 
 #include <errno.h>
 #include <signal.h>
 #include <string.h>
 
 /* Clear all signals from SET.  */
-int sigemptyset (sigset_t *set)
+int
+sigemptyset (set)
+     sigset_t *set;
 {
-    if (set == NULL)
+  if (set == NULL)
     {
-	__set_errno (EINVAL);
-	return -1;
+      __set_errno (EINVAL);
+      return -1;
     }
 
-    memset (set, 0, sizeof (sigset_t));
+  memset (set, 0, sizeof (sigset_t));
 
-    return 0;
+  return 0;
 }
diff --git a/libc/signal/sigfillset.c b/libc/signal/sigfillset.c
index 6edbb0e6b..03361787e 100644
--- a/libc/signal/sigfillset.c
+++ b/libc/signal/sigfillset.c
@@ -1,35 +1,46 @@
-/* Copyright (C) 1991, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991,96,97,2002,2003,2004 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.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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.
+   Lesser 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
 
 #include <errno.h>
 #include <signal.h>
 #include <string.h>
 
 /* Set all signals in SET.  */
-int sigfillset (sigset_t *set)
+int
+sigfillset (set)
+     sigset_t *set;
 {
-    if (set == NULL)
+  if (set == NULL)
     {
-	__set_errno (EINVAL);
-	return -1;
+      __set_errno (EINVAL);
+      return -1;
     }
 
-    memset (set, 0xff, sizeof (sigset_t));
+  memset (set, 0xff, sizeof (sigset_t));
 
-    return 0;
+  /* If the implementation uses a cancellation signal don't set the bit.  */
+#ifdef SIGCANCEL
+  __sigdelset (set, SIGCANCEL);
+#endif
+  /* Likewise for the signal to implement setxid.  */
+#ifdef SIGSETXID
+  __sigdelset (set, SIGSETXID);
+#endif
+
+  return 0;
 }
diff --git a/libc/signal/siggetmask.c b/libc/signal/siggetmask.c
index 0436532a5..f139d3861 100644
--- a/libc/signal/siggetmask.c
+++ b/libc/signal/siggetmask.c
@@ -3,25 +3,28 @@
    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.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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.
+   Lesser 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
 
-#define __USE_GNU
 #include <signal.h>
 
-int siggetmask (void)
+extern int __sigblock (int __mask);
+int
+siggetmask (void)
 {
-    return sigblock (0);
+  return __sigblock (0);
 }
 
+link_warning (siggetmask,
+	      "warning: `siggetmask' is obsolete; `sigprocmask' is best")
diff --git a/libc/signal/sighold.c b/libc/signal/sighold.c
index d30a337f2..670a4872e 100644
--- a/libc/signal/sighold.c
+++ b/libc/signal/sighold.c
@@ -1,40 +1,42 @@
 /* Add SIG to the calling process' signal mask.
-   Copyright (C) 1998, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    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.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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.
+   Lesser 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
 
 #define __need_NULL
 #include <stddef.h>
-#define __USE_GNU
+#define _GNU_SOURCE
 #include <signal.h>
 
-int sighold (int sig)
+int
+sighold (sig)
+     int sig;
 {
-    sigset_t set;
+  sigset_t set;
 
-    /* Retrieve current signal set.  */
-    if (sigprocmask (SIG_SETMASK, NULL, &set) < 0)
-	return -1;
+  /* Retrieve current signal set.  */
+  if (sigprocmask (SIG_SETMASK, NULL, &set) < 0)
+    return -1;
 
-    /* Add the specified signal.  */
-    if (__sigaddset (&set, sig) < 0)
-	return -1;
+  /* Add the specified signal.  */
+  if (sigaddset (&set, sig) < 0)
+    return -1;
 
-    /* Set the new mask.  */
-    return sigprocmask (SIG_SETMASK, &set, NULL);
+  /* Set the new mask.  */
+  return sigprocmask (SIG_SETMASK, &set, NULL);
 }
diff --git a/libc/signal/sigignore.c b/libc/signal/sigignore.c
index 64d1852ab..407b52e2a 100644
--- a/libc/signal/sigignore.c
+++ b/libc/signal/sigignore.c
@@ -1,36 +1,41 @@
 /* Set the disposition of SIG to SIG_IGN.
-   Copyright (C) 1998 Free Software Foundation, Inc.
+   Copyright (C) 1998, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    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.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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.
+   Lesser 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
 
+#define _GNU_SOURCE
 #include <errno.h>
 #define __need_NULL
 #include <stddef.h>
 #include <signal.h>
+#include <string.h>	/* For the real memset prototype.  */
 
-int sigignore (int sig)
+
+int
+sigignore (sig)
+     int sig;
 {
-    struct sigaction act;
+  struct sigaction act;
 
-    act.sa_handler = SIG_IGN;
-    if (__sigemptyset (&act.sa_mask) < 0)
-	return -1;
-    act.sa_flags = 0;
+  act.sa_handler = SIG_IGN;
+  if (__sigemptyset (&act.sa_mask) < 0)
+    return -1;
+  act.sa_flags = 0;
 
-    return sigaction (sig, &act, NULL);
+  return sigaction (sig, &act, NULL);
 }
diff --git a/libc/signal/sigintr.c b/libc/signal/sigintr.c
index e8cdd9814..8315c3a6b 100644
--- a/libc/signal/sigintr.c
+++ b/libc/signal/sigintr.c
@@ -1,20 +1,20 @@
-/* Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1992, 1994, 1996, 2002 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.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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.
+   Lesser 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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
 
 #include <stddef.h>
 #include <signal.h>
@@ -23,32 +23,35 @@
 /* If INTERRUPT is nonzero, make signal SIG interrupt system calls
    (causing them to fail with EINTR); if INTERRUPT is zero, make system
    calls be restarted after signal SIG.  */
-int siginterrupt (int sig, int interrupt)
+int
+siginterrupt (sig, interrupt)
+     int sig;
+     int interrupt;
 {
 #ifdef	SA_RESTART
-    extern sigset_t _sigintr;	/* Defined in signal.c.  */
-    struct sigaction action;
+  extern sigset_t _sigintr attribute_hidden;	/* Defined in signal.c.  */
+  struct sigaction action;
 
-    if (sigaction (sig, (struct sigaction *) NULL, &action) < 0)
-	return -1;
+  if (sigaction (sig, (struct sigaction *) NULL, &action) < 0)
+    return -1;
 
-    if (interrupt)
+  if (interrupt)
     {
-	__sigaddset (&_sigintr, sig);
-	action.sa_flags &= ~SA_RESTART;
+      __sigaddset (&_sigintr, sig);
+      action.sa_flags &= ~SA_RESTART;
     }
-    else
+  else
     {
-	__sigdelset (&_sigintr, sig);
-	action.sa_flags |= SA_RESTART;
+      __sigdelset (&_sigintr, sig);
+      action.sa_flags |= SA_RESTART;
     }
 
-    if (sigaction (sig, &action, (struct sigaction *) NULL) < 0)
-	return -1;
+  if (sigaction (sig, &action, (struct sigaction *) NULL) < 0)
+    return -1;
 
-    return 0;
+  return 0;
 #else
-    __set_errno (ENOSYS);
-    return -1;
+  __set_errno (ENOSYS);
+  return -1;
 #endif
 }
diff --git a/libc/signal/sigisempty.c b/libc/signal/sigisempty.c
index 9067ff08a..6d1de45a8 100644
--- a/libc/signal/sigisempty.c
+++ b/libc/signal/sigisempty.c
@@ -2,19 +2,19 @@
    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