diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/sigaction.c')
-rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/sigaction.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/sigaction.c b/REORG.TODO/sysdeps/unix/sysv/linux/sigaction.c new file mode 100644 index 0000000000..c76c9374c9 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/sigaction.c @@ -0,0 +1,69 @@ +/* Copyright (C) 1997-2017 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 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <signal.h> +#include <string.h> + +#include <sysdep.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 <kernel_sigaction.h> + + +/* 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 result; + + struct kernel_sigaction kact, koact; + + if (act) + { + kact.k_sa_handler = act->sa_handler; + memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t)); + kact.sa_flags = act->sa_flags; +#ifdef HAVE_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 = INLINE_SYSCALL (rt_sigaction, 4, sig, + act ? &kact : NULL, + oact ? &koact : NULL, _NSIG / 8); + + if (oact && result >= 0) + { + oact->sa_handler = koact.k_sa_handler; + memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (sigset_t)); + oact->sa_flags = koact.sa_flags; +#ifdef HAVE_SA_RESTORER + oact->sa_restorer = koact.sa_restorer; +#endif + } + return result; +} +libc_hidden_def (__libc_sigaction) + +#include <nptl/sigaction.c> |