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authorStef Walter <stef@memberwebs.com>2006-01-27 16:31:29 +0000
committerStef Walter <stef@memberwebs.com>2006-01-27 16:31:29 +0000
commitd42d01d5bc399c03124626b8537781d0848d29bb (patch)
treee07696f5b29556ebe74eb5311788edd1ad04f899
parent254df62aef0408c6b0e2a2904b4b7817a9cf86b8 (diff)
Make rrdbotd able to become a daemon.
-rw-r--r--daemon/rrdbotd.c55
1 files changed, 51 insertions, 4 deletions
diff --git a/daemon/rrdbotd.c b/daemon/rrdbotd.c
index 63cafc1..7b8a79a 100644
--- a/daemon/rrdbotd.c
+++ b/daemon/rrdbotd.c
@@ -41,6 +41,7 @@
#include <unistd.h>
#include <stdarg.h>
#include <syslog.h>
+#include <signal.h>
#include <bsnmp/asn1.h>
#include <bsnmp/snmp.h>
@@ -175,12 +176,33 @@ rb_message (int level, const char* msg, ...)
static void
usage()
{
- fprintf(stderr, "usage: rrdcollectd [-c confdir] [-w workdir] [-d level] [-p pidfile] [-r retries] [-t timeout]\n");
- fprintf(stderr, " rrdcollectd -v\n");
+ fprintf(stderr, "usage: rrdbotd [-c confdir] [-w workdir] [-d level] [-p pidfile] [-r retries] [-t timeout]\n");
+ fprintf(stderr, " rrdbotd -v\n");
exit(2);
}
-#include <values.h>
+static void
+on_quit(int signal)
+{
+ fprintf(stderr, "rrdbotd: got signal to quit\n");
+ server_stop();
+}
+
+static void
+writepid(const char* pidfile)
+{
+ FILE* f = fopen(pidfile, "w");
+ if(f == NULL)
+ {
+ rb_message(LOG_WARNING, "couldn't open pid file: %s", pidfile);
+ return;
+ }
+
+ fprintf(f, "%d\n", (int)getpid());
+ if(ferror(f))
+ rb_message(LOG_WARNING, "couldn't write to pid file: %s", pidfile);
+ fclose(f);
+}
int
main(int argc, char* argv[])
@@ -270,12 +292,37 @@ main(int argc, char* argv[])
rb_snmp_engine_init();
if(daemonize)
- warnx("TODO: daemon mode not implemented yet");
+ {
+ /* Fork a daemon nicely */
+ if(daemon(0, 0) == -1)
+ err("couldn't fork as a daemon");
+
+ rb_messagex(LOG_DEBUG, "running as a daemon");
+ daemonized = 1;
+ }
+
+ /* Handle signals */
+ signal(SIGPIPE, SIG_IGN);
+ signal(SIGHUP, SIG_IGN);
+ signal(SIGINT, on_quit);
+ signal(SIGTERM, on_quit);
+ siginterrupt(SIGINT, 1);
+ siginterrupt(SIGTERM, 1);
+
+ /* Open the system log */
+ openlog("rrdbotd", 0, LOG_DAEMON);
+
+ if(pidfile != NULL)
+ writepid(pidfile);
+
+ rb_messagex(LOG_INFO, "rrdbotd version " VERSION " started up");
/* Now let it go */
if(server_run() == -1)
err(1, "critical failure running SNMP engine");
+ rb_messagex(LOG_INFO, "rrdbotd stopping");
+
/* Cleanups */
rb_snmp_engine_uninit();
rb_config_free();