fix an off-by-one error that prevented the open() check from succeeding, if stdin...

diff --git a/util.c b/util.c
index 4713c74..bc137c3 100644 (file)
--- a/util.c
+++ b/util.c
@@ -396,7 +396,7 @@ static FILE *uci_open_stream(struct uci_context *ctx, const char *filename, int
        }
 
        fd = open(filename, mode, UCI_FILEMODE);
-       if (fd <= 0)
+       if (fd < 0)
                goto error;
 
        if (flock(fd, (write ? LOCK_EX : LOCK_SH)) < 0)