| /* Copyright (C) 1992-2014 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 <hurd.h> |
| |
| /* Run signals handlers on the stack specified by SS (if not NULL). |
| If OSS is not NULL, it is filled in with the old signal stack status. */ |
| int |
| sigstack (struct sigstack *ss, struct sigstack *oss) |
| { |
| struct sigaltstack as, oas; |
| |
| as.ss_sp = ss->ss_sp; |
| as.ss_size = 0; |
| as.ss_flags = 0; |
| |
| if (__sigaltstack (&as, &oas) < 0) |
| return -1; |
| |
| if (oss != NULL) |
| { |
| oss->ss_sp = oas.ss_sp; |
| oss->ss_onstack = oas.ss_flags & SS_ONSTACK; |
| } |
| |
| return 0; |
| } |