This is an automated email from the git hooks/post-receive script. x2go pushed a commit to branch bugfix/osx in repository x2goclient. commit 20e70da1b9fc5c669735d475eaf0780ac79bec29 Author: Mihai Moldovan <ionic@ionic.de> Date: Mon Mar 16 22:42:14 2015 +0100 unixhelper.{cpp,h}: implement signal unblocking in unixhelper::unix_cleanup(). Update documentation. --- debian/changelog | 2 ++ src/unixhelper.cpp | 20 ++++++++++++++++++++ src/unixhelper.h | 10 +++++----- 3 files changed, 27 insertions(+), 5 deletions(-) diff --git a/debian/changelog b/debian/changelog index 4a685c0..aff0754 100644 --- a/debian/changelog +++ b/debian/changelog @@ -260,6 +260,8 @@ x2goclient (4.0.4.0-0x2go1) UNRELEASED; urgency=low - unixhelper.{cpp,h}: add documentation/comments. - x2goclient.cpp: return return value of unixhelper::unix_cleanup(). - unixhelper.cpp: kill process group on error. + - unixhelper.{cpp,h}: implement signal unblocking in + unixhelper::unix_cleanup(). Update documentation. -- X2Go Release Manager <git-admin@x2go.org> Thu, 19 Feb 2015 13:25:28 +0100 diff --git a/src/unixhelper.cpp b/src/unixhelper.cpp index d9ef3d7..1877890 100644 --- a/src/unixhelper.cpp +++ b/src/unixhelper.cpp @@ -54,6 +54,26 @@ namespace unixhelper { int unix_cleanup () { + /* + * Unblock all signals first. + * Signal blocks are inherited, so you never you what is currently set. + */ + sigset_t empty_set; + if (0 != sigemptyset (&empty_set)) { + std::cerr << "Unable to fetch empty signal set: " << std::strerror (errno) << std::endl; + kill_pgroup (-1); + + /* Anything here shall be unreachable. */ + } + + if (0 != sigprocmask (SIG_SETMASK, &empty_set, NULL)) { + std::cerr << "Unable to set empty signal set: " << std::strerror (errno) << std::endl; + kill_pgroup (-1); + + /* Anything here shall be unreachable. */ + } + + /* Set up signal handler to ignore SIGTERM. */ if (SIG_ERR == std::signal (SIGTERM, SIG_IGN)) { std::cerr << "Unable to ignore SIGTERM: " << std::strerror (errno) << std::endl; kill_pgroup (-1); diff --git a/src/unixhelper.h b/src/unixhelper.h index a00d21b..7ca8b43 100644 --- a/src/unixhelper.h +++ b/src/unixhelper.h @@ -27,12 +27,12 @@ namespace unixhelper { /* - * TODO: Unblocks all signals and - * installs a signal handler for SIGHUP, which calls kill_pgroup. + * Unblocks all signals and installs a signal handler for SIGHUP, + * which calls kill_pgroup. * - * TODO: Should signal unblocking or - * installing the signal handler fail, an emergency exit is performed - * and the whole process group killed. + * Should signal unblocking or installing the signal handler fail, + * an emergency exit is performed and + * the whole process group killed. * * Loops indefinitely afterwards. */ -- Alioth's /srv/git/code.x2go.org/x2goclient.git//..//_hooks_/post-receive-email on /srv/git/code.x2go.org/x2goclient.git