more: exit if write to stdout errors out

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/util-linux/more.c b/util-linux/more.c
index 788609a08..ecac92821 100644
--- a/util-linux/more.c
+++ b/util-linux/more.c
@@ -191,6 +191,9 @@ int more_main(int argc UNUSED_PARAM, char **argv)
                         }
                         /* My small mind cannot fathom backspaces and UTF-8 */
                         putchar(c);
+
+                        if (ferror(stdout)) /* if tty was destroyed (closed xterm, etc) */
+                                goto end;
                 }
                 fclose(file);
                 fflush_all();