diff options
| -rw-r--r-- | util/ulockmgr_server.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/util/ulockmgr_server.c b/util/ulockmgr_server.c index 8ffdfef..583fcf9 100644 --- a/util/ulockmgr_server.c +++ b/util/ulockmgr_server.c @@ -366,8 +366,10 @@ int main(int argc, char *argv[]) } cfd = 4; nullfd = open("/dev/null", O_RDWR); - dup2(nullfd, 0); - dup2(nullfd, 1); + if (nullfd >= 0) { + dup2(nullfd, 0); + dup2(nullfd, 1); + } close(3); closefrom(5); while (1) { |