From 51e0303e840c94e5943f30e311d053058f657327 Mon Sep 17 00:00:00 2001 From: Chantry Xavier Date: Sun, 9 Mar 2008 13:12:32 +0100 Subject: Use sigaction instead of signal. From signal man page : "The behavior of signal() varies across Unix versions, and has also varied historically across different versions of Linux. Avoid its use: use sigaction(2) instead. See Portability below." The code was taken from there : http://www.gnu.org/software/libtool/manual/libc/Sigaction-Function-Example.html Signed-off-by: Chantry Xavier Signed-off-by: Dan McGee --- src/pacman/pacman.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) (limited to 'src') diff --git a/src/pacman/pacman.c b/src/pacman/pacman.c index f46b71c1..c2b61fcd 100644 --- a/src/pacman/pacman.c +++ b/src/pacman/pacman.c @@ -752,6 +752,7 @@ static int parseconfig(const char *file) int main(int argc, char *argv[]) { int ret = 0; + struct sigaction new_action, old_action; #if defined(HAVE_GETEUID) /* geteuid undefined in CYGWIN */ uid_t myuid = geteuid(); @@ -762,10 +763,24 @@ int main(int argc, char *argv[]) mtrace(); #endif - /* set signal handlers */ - signal(SIGINT, handler); - signal(SIGTERM, handler); - signal(SIGSEGV, handler); + /* Set signal handlers */ + /* Set up the structure to specify the new action. */ + new_action.sa_handler = handler; + sigemptyset(&new_action.sa_mask); + new_action.sa_flags = 0; + + sigaction(SIGINT, NULL, &old_action); + if(old_action.sa_handler != SIG_IGN) { + sigaction(SIGINT, &new_action, NULL); + } + sigaction(SIGTERM, NULL, &old_action); + if(old_action.sa_handler != SIG_IGN) { + sigaction(SIGTERM, &new_action, NULL); + } + sigaction(SIGSEGV, NULL, &old_action); + if(old_action.sa_handler != SIG_IGN) { + sigaction(SIGSEGV, &new_action, NULL); + } /* i18n init */ #if defined(ENABLE_NLS) -- cgit v1.2.3-24-g4f1b