diff options
Diffstat (limited to 'sysdeps/posix/sigblock.c')
| -rw-r--r-- | sysdeps/posix/sigblock.c | 52 |
1 files changed, 27 insertions, 25 deletions
diff --git a/sysdeps/posix/sigblock.c b/sysdeps/posix/sigblock.c index 411a952..777710b 100644 --- a/sysdeps/posix/sigblock.c +++ b/sysdeps/posix/sigblock.c @@ -1,53 +1,55 @@ -/* Copyright (C) 1991, 1994, 1995 Free Software Foundation, Inc. -This file is part of the GNU C Library. +/* Copyright (C) 1991, 1994, 1995, 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 <ansidecl.h> #include <errno.h> #include <signal.h> /* Block signals in MASK, returning the old mask. */ int -DEFUN(__sigblock, (mask), int mask) +__sigblock (mask) + int mask; { register int sig; sigset_t set, oset; - if (__sigemptyset(&set) < 0) + if (__sigemptyset (&set) < 0) return -1; - + if (sizeof (mask) == sizeof (set)) *(int *) &set = mask; + else if (sizeof (unsigned long int) == sizeof (set)) + *(unsigned long int *) &set = (unsigned int) mask; else for (sig = 1; sig < NSIG; ++sig) - if ((mask & sigmask(sig)) && - __sigaddset(&set, sig) < 0) + if ((mask & sigmask (sig)) && __sigaddset (&set, sig) < 0) return -1; - if (sigprocmask(SIG_BLOCK, &set, &oset) < 0) + if (sigprocmask (SIG_BLOCK, &set, &oset) < 0) return -1; - mask = 0; if (sizeof (mask) == sizeof (oset)) mask = *(int *) &oset; + else if (sizeof (unsigned long int) == sizeof (oset)) + mask = *(unsigned long int*) &oset; else - for (sig = 1; sig < NSIG; ++sig) - if (__sigismember(&oset, sig)) - mask |= sigmask(sig); + for (sig = 1, mask = 0; sig < NSIG; ++sig) + if (__sigismember (&oset, sig)) + mask |= sigmask (sig); return mask; } |