From 9e4fedb7f3580da46ae8a0f4dbb444d0a63817f7 Mon Sep 17 00:00:00 2001
From: Dave Vasilevsky <dave@vasilevsky.ca>
Date: Fri, 16 Nov 2012 09:21:56 -0500
Subject: [PATCH] Fix typo in TTY detection

---
 pixz.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pixz.c b/pixz.c
index 7b318dc..8e3f8fe 100644
--- a/pixz.c
+++ b/pixz.c
@@ -113,7 +113,7 @@ int main(int argc, char **argv) {
 	
     switch (op) {
         case OP_WRITE:
-			if (isatty(fileno(gOutFile)) == -1)
+			if (isatty(fileno(gOutFile)) == 1)
 				usage("Refusing to output to a TTY");
 			pixz_write(tar, level);
 			break;