Removed the error when the tty size can not be obtained and just ignore it.

diff --git a/dus.c b/dus.c
index 736b136..6e39dca 100644 (file)
--- a/dus.c
+++ b/dus.c
@@ -347,6 +347,7 @@ void print_help(FILE *out) {
 int main(int argc, char **argv) {
   int c;
   struct file_with_size *root;
+  struct winsize win;
 
   root = 0;
 
@@ -420,12 +421,8 @@ int main(int argc, char **argv) {
     }
   }
 
-  if(isatty(STDOUT_FILENO)) {
-    struct winsize win;
-    if(ioctl (STDOUT_FILENO, TIOCGWINSZ, (char *) &win)) {
-      fprintf(stderr, "Can not get the tty size: %s\n", strerror(errno));
-      exit (EXIT_FAILURE);
-    }
+  if(isatty(STDOUT_FILENO) &&
+     !ioctl (STDOUT_FILENO, TIOCGWINSZ, (char *) &win)) {
     print_sorted(root, win.ws_col, win.ws_row - 2);
   } else {
     print_sorted(root, -1, -1);