libcom_err: handle error case when FD_CLOEXEC can't be set on debug FILE

Fixes-Coverity-Bug: 1049142
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/lib/et/error_message.c b/lib/et/error_message.c
index 5dd8aa6..bd18be7 100644 (file)
--- a/lib/et/error_message.c
+++ b/lib/et/error_message.c
@@ -257,7 +257,14 @@ static void init_debug(void)
                if (fd >= 0) {
                        flags = fcntl(fd, F_GETFD);
                        if (flags >= 0)
-                               fcntl(fd, F_SETFD, flags | FD_CLOEXEC);
+                               flags = fcntl(fd, F_SETFD, flags | FD_CLOEXEC);
+                       if (flags < 0) {
+                               fprintf(debug_f, "Couldn't set FD_CLOEXEC "
+                                       "on debug FILE: %s\n", strerror(errno));
+                               fclose(debug_f);
+                               debug_f = NULL;
+                               debug_mask = DEBUG_INIT;
+                       }
                }
 #endif
        } else