[patch] adds memory scrambling support

bash-malloc.patch (text/plain), 1.40 KB, created by rpansky on 2009-10-02 20:34:36 UTC

--- bash-4.0_p28.ebuild
+++ bash-4.0_p28.ebuild
@@ -37,7 +37,7 @@
 LICENSE="GPL-3"
 SLOT="0"
 KEYWORDS="alpha amd64 ~arm hppa ~ia64 ~m68k ~mips ppc ~ppc64 ~s390 ~sh ~sparc x86 ~sparc-fbsd ~x86-fbsd"
-IUSE="afs bashlogger examples +net nls plugins vanilla"
+IUSE="afs bashlogger examples memscramble +net nls plugins vanilla"
 
 DEPEND=">=sys-libs/ncurses-5.2-r2
 	nls? ( virtual/libintl )"
@@ -111,12 +111,16 @@
 	# sucks bad compared to ncurses
 	myconf="${myconf} --with-curses"
 
+	# Do not disable the bash malloc if we want memory scrambling,
+	# which is enabled by default (Bug 286990). On arches not
+	# supporting the bash malloc, USE="memscramble" has no effect.
+	use memscramble || myconf="${myconf} --without-bash-malloc"
+
 	use plugins && append-ldflags -Wl,-rpath,/usr/$(get_libdir)/bash
 	econf \
 		$(use_with afs) \
 		$(use_enable net net-redirections) \
 		--disable-profiling \
-		--without-gnu-malloc \
 		${myconf} || die
 	emake || die "make failed"
 
--- metadata.xml
+++ metadata.xml
@@ -5,6 +5,7 @@
 <use>
   <flag name='bashlogger'>Log ALL commands typed into bash; should ONLY be
     used in restricted environments such as honeypots</flag>
+  <flag name='memscramble'>Build with custom malloc/free overwriting allocated/freed memory</flag>
   <flag name='net'>Enable /dev/tcp/host/port redirection</flag>
   <flag name='plugins'>Add support for loading builtins at runtime via
     'enable'</flag>