Fix typo in TTY detection

12 years ago · 9e4fedb7f3
parent 154dc842a1
commit 9e4fedb7f3
1 changed files with 1 additions and 1 deletions
--- 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;