From: Rob Landley <rob@landley.net>
Date: Fri, 16 Dec 2005 08:02:11 +0000 (-0000)
Subject: Less would segfault if it had no tty.  (Bug 600.)
X-Git-Tag: 1_1_0~404
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=4b91b88fcb73e928415bda80090b98b2d3806ff1;p=oweals%2Fbusybox.git

Less would segfault if it had no tty.  (Bug 600.)
---

diff --git a/miscutils/less.c b/miscutils/less.c
index 0b0dc0c8b..19051f6f6 100644
--- a/miscutils/less.c
+++ b/miscutils/less.c
@@ -239,6 +239,7 @@ static void data_readlines(void) {
 
 	if(inp == NULL)
 		inp = (inp_stdin) ? bb_xfopen(CURRENT_TTY, "r") : stdin;
+	if(inp == NULL) bb_perror_msg_and_die("no tty");
 
 	if (flags & FLAG_N)
 		add_linenumbers();