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Use sigaction to set signal handlers, the previous commit (1.1.2.16)
[tinc]
/
src
/
process.c
diff --git
a/src/process.c
b/src/process.c
index
013b24d
..
695f1f7
100644
(file)
--- a/
src/process.c
+++ b/
src/process.c
@@
-17,7
+17,7
@@
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: process.c,v 1.1.2.1
6 2000/11/26 22:42:34
zarq Exp $
+ $Id: process.c,v 1.1.2.1
7 2000/11/28 08:59:27
zarq Exp $
*/
#include "config.h"
*/
#include "config.h"
@@
-54,6
+54,8
@@
extern char *identname;
extern char *pidfilename;
extern char **g_argv;
extern char *pidfilename;
extern char **g_argv;
+sigset_t emptysigset;
+
void memory_full(int size)
{
syslog(LOG_ERR, _("Memory exhausted (couldn't allocate %d bytes), exiting."), size);
void memory_full(int size)
{
syslog(LOG_ERR, _("Memory exhausted (couldn't allocate %d bytes), exiting."), size);
@@
-263,7
+265,7
@@
cp
}
else /* Something strange happened */
{
}
else /* Something strange happened */
{
- syslog(LOG_ERR, _("Process %d (%s) terminated abnormaly"), pid, name);
+ syslog(LOG_ERR, _("Process %d (%s) terminated abnormal
l
y"), pid, name);
return -1;
}
}
return -1;
}
}
@@
-285,7
+287,7
@@
cp
*/
RETSIGTYPE
*/
RETSIGTYPE
-sigterm_handler(int a, siginfo_t *info, void *)
+sigterm_handler(int a, siginfo_t *info, void *
b
)
{
if(debug_lvl > DEBUG_NOTHING)
syslog(LOG_NOTICE, _("Got TERM signal"));
{
if(debug_lvl > DEBUG_NOTHING)
syslog(LOG_NOTICE, _("Got TERM signal"));
@@
-294,7
+296,7
@@
sigterm_handler(int a, siginfo_t *info, void *)
}
RETSIGTYPE
}
RETSIGTYPE
-sigquit_handler(int a, siginfo_t *info, void *)
+sigquit_handler(int a, siginfo_t *info, void *
b
)
{
if(debug_lvl > DEBUG_NOTHING)
syslog(LOG_NOTICE, _("Got QUIT signal"));
{
if(debug_lvl > DEBUG_NOTHING)
syslog(LOG_NOTICE, _("Got QUIT signal"));
@@
-302,7
+304,7
@@
sigquit_handler(int a, siginfo_t *info, void *)
}
RETSIGTYPE
}
RETSIGTYPE
-sigsegv_square(int a, siginfo_t *info, void *)
+sigsegv_square(int a, siginfo_t *info, void *
b
)
{
syslog(LOG_ERR, _("Got another SEGV signal: not restarting"));
cp_trace();
{
syslog(LOG_ERR, _("Got another SEGV signal: not restarting"));
cp_trace();
@@
-310,15
+312,21
@@
sigsegv_square(int a, siginfo_t *info, void *)
}
RETSIGTYPE
}
RETSIGTYPE
-sigsegv_handler(int a, siginfo_t *info, void *)
+sigsegv_handler(int a, siginfo_t *info, void *
b
)
{
{
+ struct sigaction act;
syslog(LOG_ERR, _("Got SEGV signal"));
cp_trace();
if(do_detach)
{
syslog(LOG_NOTICE, _("Trying to re-execute in 5 seconds..."));
syslog(LOG_ERR, _("Got SEGV signal"));
cp_trace();
if(do_detach)
{
syslog(LOG_NOTICE, _("Trying to re-execute in 5 seconds..."));
- signal(SIGSEGV, sigsegv_square);
+
+ act.sa_handler = NULL;
+ act.sa_mask = emptysigset;
+ act.sa_flags = SA_SIGINFO;
+ act.sa_sigaction = sigsegv_square;
+
close_network_connections();
sleep(5);
remove_pid(pidfilename);
close_network_connections();
sleep(5);
remove_pid(pidfilename);
@@
-332,7
+340,7
@@
sigsegv_handler(int a, siginfo_t *info, void *)
}
RETSIGTYPE
}
RETSIGTYPE
-sighup_handler(int a, siginfo_t *info, void *)
+sighup_handler(int a, siginfo_t *info, void *
b
)
{
if(debug_lvl > DEBUG_NOTHING)
syslog(LOG_NOTICE, _("Got HUP signal"));
{
if(debug_lvl > DEBUG_NOTHING)
syslog(LOG_NOTICE, _("Got HUP signal"));
@@
-340,7
+348,7
@@
sighup_handler(int a, siginfo_t *info, void *)
}
RETSIGTYPE
}
RETSIGTYPE
-sigint_handler(int a, siginfo_t *info, void *)
+sigint_handler(int a, siginfo_t *info, void *
b
)
{
if(debug_lvl > DEBUG_NOTHING)
syslog(LOG_NOTICE, _("Got INT signal, exiting"));
{
if(debug_lvl > DEBUG_NOTHING)
syslog(LOG_NOTICE, _("Got INT signal, exiting"));
@@
-348,19
+356,19
@@
sigint_handler(int a, siginfo_t *info, void *)
}
RETSIGTYPE
}
RETSIGTYPE
-sigusr1_handler(int a, siginfo_t *info, void *)
+sigusr1_handler(int a, siginfo_t *info, void *
b
)
{
dump_connection_list();
}
RETSIGTYPE
{
dump_connection_list();
}
RETSIGTYPE
-sigusr2_handler(int a, siginfo_t *info, void *)
+sigusr2_handler(int a, siginfo_t *info, void *
b
)
{
dump_subnet_list();
}
RETSIGTYPE
{
dump_subnet_list();
}
RETSIGTYPE
-
sighuh(int a, siginfo_t *info, void *
)
+
unexpected_signal_handler(int a, siginfo_t *info, void *b
)
{
syslog(LOG_WARNING, _("Got unexpected signal %d (%s)"), a, strsignal(a));
cp_trace();
{
syslog(LOG_WARNING, _("Got unexpected signal %d (%s)"), a, strsignal(a));
cp_trace();
@@
-386,19
+394,18
@@
void
setup_signals(void)
{
int i;
setup_signals(void)
{
int i;
- sigset_t a;
struct sigaction act;
struct sigaction act;
- sigemptyset(&
a
);
+ sigemptyset(&
emptysigset
);
act.sa_handler = NULL;
act.sa_handler = NULL;
- act.sa_mask =
a
;
+ act.sa_mask =
emptysigset
;
act.sa_flags = SA_SIGINFO;
/* Set a default signal handler for every signal, errors will be
ignored. */
for(i = 0; i < NSIG; i++)
{
act.sa_flags = SA_SIGINFO;
/* Set a default signal handler for every signal, errors will be
ignored. */
for(i = 0; i < NSIG; i++)
{
- act.sa_sigaction =
sighuh
_handler;
+ act.sa_sigaction =
unexpected_signal
_handler;
sigaction(sighandlers[i].signal, &act, NULL);
}
sigaction(sighandlers[i].signal, &act, NULL);
}