gdb/gdb-6.5-readline-long-line-crash-test.patch

From 2b4ff32b8c143887747c49a67d32f945412278b9 Mon Sep 17 00:00:00 2001
From: Fedora GDB patches <invalid@email.com>
Date: Fri, 27 Oct 2017 21:07:50 +0200
Subject: gdb-6.5-readline-long-line-crash-test.patch

FileName: gdb-6.5-readline-long-line-crash-test.patch

;; Fix readline segfault on excessively long hand-typed lines.
;;=fedoratest

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=214196
---
 gdb/testsuite/gdb.base/readline-overflow.exp | 126 +++++++++++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100644 gdb/testsuite/gdb.base/readline-overflow.exp

diff --git a/gdb/testsuite/gdb.base/readline-overflow.exp b/gdb/testsuite/gdb.base/readline-overflow.exp
new file mode 100644
index 0000000000..5e46816d21
--- /dev/null
+++ b/gdb/testsuite/gdb.base/readline-overflow.exp
@@ -0,0 +1,126 @@
+# Copyright 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  
+
+# Please email any bugs, comments, and/or additions to this file to:
+# bug-gdb@prep.ai.mit.edu
+
+# This file was written by Jan Kratochvil <jan.kratochvil@redhat.com>
+
+# This file is part of the gdb testsuite.
+
+#
+# Tests for readline buffer overflow.
+#
+
+if $tracelevel {
+  strace $tracelevel
+}
+
+# Don't let a .inputrc file or an existing setting of INPUTRC mess up
+# the test results.  Even if /dev/null doesn't exist on the particular
+# platform, the readline library will use the default setting just by
+# failing to open the file.  OTOH, opening /dev/null successfully will
+# also result in the default settings being used since nothing will be
+# read from this file.
+global env
+if [info exists env(INPUTRC)] {
+    set old_inputrc $env(INPUTRC)
+}
+set env(INPUTRC) "/dev/null"
+
+set oldtimeout1 $timeout
+set timeout 600
+
+if [info exists env(GDBHISTFILE)] {
+    set old_gdbhistfile $env(GDBHISTFILE)
+}
+if [info exists env(HISTSIZE)] {
+    set old_histsize $env(HISTSIZE)
+}
+set env(GDBHISTFILE) "${srcdir}/${subdir}/gdb_history"
+set env(HISTSIZE) "10"
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+
+
+set width 11
+gdb_test "set width $width" \
+         "" \
+         "Setting width to $width."
+#gdb_test "set height 1" \
+#         "" \
+#         "Setting height to 1."
+send_gdb "run X"
+set i 0
+# It crashes using `set width 7' on `set total 3560'.
+# Sometimes it corrupts screen on `set width 7'.
+# Bugreport used `set total 130001':
+# 	https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=214196
+# Check also `timeout' above.
+set total 4200
+gdb_expect {
+	-re X {
+		incr i
+		if {$i <= $total} {
+			send_gdb "X"
+			exp_continue
+		}
+	}
+	-re "\[ \b\r\n\]" {
+		exp_continue
+	}
+	eof {
+		fail "gdb sending total $total characters"
+		note "Failed after sending $i characters, reason: EOF"
+		gdb_clear_suppressed
+	}
+	timeout {
+		fail "gdb sending total $total characters"
+		note "Failed after sending $i characters (timeout $timeout), reason: TIMEOUT"
+		gdb_clear_suppressed
+	}
+	default {
+		fail "gdb sending total $total characters"
+		note "Failed after sending $i characters, reason: 0=\[$expect_out(0,string)\] buffer=\[$expect_out(buffer)\]"
+		gdb_clear_suppressed
+	}
+}
+send_gdb "\r"
+gdb_test "" \
+         "No executable file specified..*" \
+         "All the characters transferred"
+
+
+# Restore globals modified in this test...
+if [info exists old_inputrc] {
+    set env(INPUTRC) $old_inputrc
+} else {
+    unset env(INPUTRC)
+}
+if [info exists old_gdbhistfile] {
+    set env(GDBHISTFILE) $old_gdbhistfile
+} else {
+    unset env(GDBHISTFILE)
+}
+if [info exists old_histsize] {
+    set env(HISTSIZE) $old_histsize
+} else {
+    unset env(HISTSIZE)
+}
+set timeout $oldtimeout1
+
-- 
2.14.3