/*
process.c -- process management functions
- Copyright (C) 1999-2001 Ivo Timmermans <itimmermans@bigfoot.com>,
- 2000,2001 Guus Sliepen <guus@sliepen.warande.net>
+ Copyright (C) 1999-2002 Ivo Timmermans <itimmermans@bigfoot.com>,
+ 2000-2002 Guus Sliepen <guus@sliepen.warande.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: process.c,v 1.1.2.27 2001/10/27 13:13:35 guus Exp $
+ $Id: process.c,v 1.1.2.33 2002/02/10 21:57:54 guus Exp $
*/
#include "config.h"
#include "subnet.h"
#include "device.h"
#include "connection.h"
+#include "device.h"
#include "system.h"
static int saved_debug_lvl = 0;
+extern int sighup;
+extern int sigalrm;
+extern int do_purge;
+
void memory_full(int size)
{
syslog(LOG_ERR, _("Memory exhausted (couldn't allocate %d bytes), exiting."), size);
char *scriptname;
char *s;
cp
+#ifdef HAVE_UNSETENV
+ unsetenv("NETNAME");
+ unsetenv("DEVICE");
+ unsetenv("INTERFACE");
+#endif
+
if(netname)
{
asprintf(&s, "NETNAME=%s", netname);
putenv(s); /* Don't free s! see man 3 putenv */
}
-#ifdef HAVE_UNSETENV
- else
+
+ if(device)
{
- unsetenv("NETNAME");
+ asprintf(&s, "DEVICE=%s", device);
+ putenv(s); /* Don't free s! see man 3 putenv */
+ }
+
+ if(interface)
+ {
+ asprintf(&s, "INTERFACE=%s", interface);
+ putenv(s); /* Don't free s! see man 3 putenv */
}
-#endif
chdir("/");
act.sa_mask = emptysigset;
act.sa_flags = SA_SIGINFO;
act.sa_sigaction = sigsegv_square;
+ sigaction(SIGSEGV, &act, NULL);
close_network_connections();
sleep(5);
else
{
syslog(LOG_NOTICE, _("Not restarting."));
- exit(0);
+ exit(1);
}
}
}
}
+RETSIGTYPE
+sigalrm_handler(int a, siginfo_t *info, void *b)
+{
+ if(debug_lvl > DEBUG_NOTHING)
+ syslog(LOG_NOTICE, _("Got ALRM signal"));
+ sigalrm = 1;
+}
+
RETSIGTYPE
sigusr1_handler(int a, siginfo_t *info, void *b)
{
{
dump_device_stats();
dump_nodes();
- dump_vertices();
+ dump_edges();
dump_subnets();
}
+RETSIGTYPE
+sigwinch_handler(int a, siginfo_t *info, void *b)
+{
+ extern int do_purge;
+ do_purge = 1;
+}
+
RETSIGTYPE
unexpected_signal_handler(int a, siginfo_t *info, void *b)
{
{
if(debug_lvl >= DEBUG_SCARY_THINGS)
{
- syslog(LOG_WARNING, _("Got unexpected signal %d (%s)"), a, strsignal(a));
+ syslog(LOG_DEBUG, _("Ignored signal %d (%s)"), a, strsignal(a));
cp_trace();
}
}
{ SIGUSR1, sigusr1_handler },
{ SIGUSR2, sigusr2_handler },
{ SIGCHLD, ignore_signal_handler },
- { SIGALRM, ignore_signal_handler },
+ { SIGALRM, sigalrm_handler },
+ { SIGWINCH, sigwinch_handler },
{ 0, NULL }
};
ignored. */
for(i = 0; i < NSIG; i++)
{
- act.sa_sigaction = unexpected_signal_handler;
+ if(!do_detach)
+ act.sa_sigaction = (void(*)(int, siginfo_t *, void *))SIG_DFL;
+ else
+ act.sa_sigaction = unexpected_signal_handler;
sigaction(i, &act, NULL);
}
+ /* If we didn't detach, allow coredumps */
+ if(!do_detach)
+ sighandlers[3].handler = (void(*)(int, siginfo_t *, void *))SIG_DFL;
+
/* Then, for each known signal that we want to catch, assign a
handler to the signal, with error checking this time. */
for(i = 0; sighandlers[i].signal; i++)