Write pid file, when requested

1 files changed, 12 insertions, 3 deletions

diff --git a/jaildaemon.c b/jaildaemon.c
index ae750f3..506ca98 100644
--- a/jaildaemon.c
+++ b/jaildaemon.c
@@ -349,11 +349,20 @@ int main( int argc, char **argv ) {
     /* Start a fork slave while there is no file descriptors or initialized
        memory yet. Communicate with this slave via socketpair */
     if( o_daemonize ) {
-        if( daemon(0,0) == -1 )
+        if( daemon(1,0) == -1 )
             exerr( "daemonzing" );
         g_fork_slave_fd = fork_fork_slave( );
 
-        openlog( "jaildaemon", 0, LOG_DAEMON );
+        /* When we're supposed to write a pidfile, just do it */
+        if( o_pidfile ) {
+            FILE *fp = fopen( o_pidfile, "w");
+            if (!fp)
+                exerr("opening pid file");
+            fprintf(fp, "%d\n", (int)getpid());
+            fclose(fp);
+        }
+
+         openlog( "jaildaemon", 0, LOG_DAEMON );
         setlogmask(LOG_UPTO(LOG_INFO));
         g_whoami = IAM_DAEMON;
 
@@ -363,7 +372,7 @@ int main( int argc, char **argv ) {
             usage( argv[0] );
     }
 
-    /* Setup unix domain socket descriptors */
+   /* Setup unix domain socket descriptors */
     g_uds = socket(AF_UNIX, SOCK_DGRAM, 0);
     if( g_uds < 0 )
         exerr( "Can not create control channel." );