So the timeout for each request is started when the command is accepted
but the actual fork and exec of bgpctl happens later. So command_pid can
be 0 when the timeout fires. In that case do not kill ourself but instead
just abort this command.

I think this is the proper way to do this dance. Not sure how to really
test this though.
-- 
:wq Claudio

Index: slowcgi.c
===================================================================
RCS file: /cvs/src/usr.sbin/bgplgd/slowcgi.c,v
retrieving revision 1.5
diff -u -p -r1.5 slowcgi.c
--- slowcgi.c   27 Oct 2022 13:24:22 -0000      1.5
+++ slowcgi.c   27 Oct 2022 14:00:52 -0000
@@ -159,6 +159,7 @@ void                parse_begin_request(uint8_t *, uin
 void           parse_params(uint8_t *, uint16_t, struct request *, uint16_t);
 void           parse_stdin(uint8_t *, uint16_t, struct request *, uint16_t);
 char           *env_get(struct request *, const char *);
+void           error_response(struct request *, int);
 void           exec_cgi(struct request *);
 void           script_std_in(int, short, void *);
 void           script_err_in(int, short, void *);
@@ -505,6 +506,12 @@ slowcgi_timeout(int fd, short events, vo
        if (c->script_flags & SCRIPT_DONE)
                return;
 
+       if (c->command_pid == 0) {
+               c->command_status = SIGALRM;
+               error_response(c, 408);
+               return;
+       }
+
        ldebug("timeout fired for pid %d", c->command_pid);
 
        if (c->timeout_fired)
@@ -887,7 +894,7 @@ http_error(int *res)
        return "Internal Server Error";
 }
 
-static void
+void
 error_response(struct request *c, int res)
 {
        const char *type = "text/html";

Reply via email to