Check sudo_ev_add() return value. Coverity CID 168362

diff --git a/plugins/sudoers/sudoreplay.c b/plugins/sudoers/sudoreplay.c
index 84ae0aab6ac71534e16bbbb767f6273f69fa7bcd..6f83c3255905ec44facbbecfe8488a465dc63723 100644 (file)
--- a/plugins/sudoers/sudoreplay.c
+++ b/plugins/sudoers/sudoreplay.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2016 Todd C. Miller <Todd.Miller@courtesan.com>
+ * Copyright (c) 2009-2017 Todd C. Miller <Todd.Miller@courtesan.com>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -448,7 +448,8 @@ replay_session(const double max_wait, const char *decimal)
        timeout.tv_usec = (to_wait - timeout.tv_sec) * 1000000.0;
 
        /* Run event event loop to delay and get keyboard input. */
-       sudo_ev_add(evbase, input_ev, &timeout, false);
+       if (sudo_ev_add(evbase, input_ev, &timeout, false) == -1)
+           sudo_fatal(U_("unable to add event to queue"));
        sudo_ev_loop(evbase, 0);
 
        /* Even if we are not replaying, we still have to delay. */
@@ -553,7 +554,8 @@ replay_session(const double max_wait, const char *decimal)
 
            /* Run event event loop to write output. */
            /* XXX - should use a single event loop with a circular buffer. */
-           sudo_ev_add(evbase, output_ev, NULL, false);
+           if (sudo_ev_add(evbase, output_ev, NULL, false) == -1)
+               sudo_fatal(U_("unable to add event to queue"));
            sudo_ev_loop(evbase, 0);
        }
     }
@@ -623,7 +625,8 @@ write_output(int fd, int what, void *v)
     }
 
     /* Reschedule event to write remainder. */
-    sudo_ev_add(sudo_ev_get_base(wc->wevent), wc->wevent, NULL, false);
+    if (sudo_ev_add(NULL, wc->wevent, NULL, false) == -1)
+       sudo_fatal(U_("unable to add event to queue"));
     debug_return;
 }
 
@@ -1119,7 +1122,6 @@ static void
 check_input(int fd, int what, void *v)
 {
     struct sudo_event *ev = v;
-    struct sudo_event_base *evbase = sudo_ev_get_base(ev);
     struct timeval tv, *timeout = NULL;
     static bool paused = 0;
     char ch;
@@ -1167,7 +1169,8 @@ check_input(int fd, int what, void *v)
            timeout = &tv;
        }
        /* Re-enable event. */
-       sudo_ev_add(evbase, ev, timeout, false);
+       if (sudo_ev_add(NULL, ev, timeout, false) == -1)
+           sudo_fatal(U_("unable to add event to queue"));
     }
     debug_return;
 }