From 3874787a757c1160adef557fcf1ed489b4cb6584 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Tue, 17 Jun 2008 14:24:20 -0400
Subject: Add code to set MALLOC_CHECK_ and MALLOC_PERTURB_ . Add mcheck to
 rc.sysinit.

---
 rc.d/rc.sysinit  | 6 ++++++
 sysconfig/mcheck | 9 +++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 sysconfig/mcheck

diff --git a/rc.d/rc.sysinit b/rc.d/rc.sysinit
index 432ad434..ba61fc6e 100755
--- a/rc.d/rc.sysinit
+++ b/rc.d/rc.sysinit
@@ -798,3 +798,9 @@ fi
 wait
 [ "$PROMPT" != no ] && rm -f /var/run/getkey_done
 
+if [ -f /etc/sysconfig/mcheck ]; then
+    . /etc/sysconfig/mcheck
+    if [ -n "$MALLOC_CHECK_" ]; then
+        export MALLOC_PERTURB_=$(($RANDOM % 255 + 1))
+    fi
+fi
diff --git a/sysconfig/mcheck b/sysconfig/mcheck
new file mode 100644
index 00000000..94f35bd7
--- /dev/null
+++ b/sysconfig/mcheck
@@ -0,0 +1,9 @@
+
+# MALLOC_CHECK_: should the system (libc) malloc check for memory errors?
+# Used values are:
+# unset: do not check
+# 0: silently ignore errors
+# 1: print diagnostics on stderr when an error is detected
+# 2: call abort when an error is detected
+export MALLOC_CHECK_=1
+
-- 
cgit