# HG changeset patch
# User "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
# Date 1214858234 0
# Node ID 0d7348cb7faaade45b390a9f80a64c4db6a3646a
# Parent  c74132339c4454316ec1887320f77804e5d37615
Newer, better, tsocks(1)-like wrapper script for D.U.M.A.

 /trunk/scripts/build/debug/duma.in     |   44    44     0     0 ++++++++++++++++++++++++++++++++++++++++
 /trunk/scripts/build/debug/200-duma.sh |   12     3     9     0 +++--------
 2 files changed, 47 insertions(+), 9 deletions(-)

diff -r c74132339c44 -r 0d7348cb7faa scripts/build/debug/200-duma.sh
--- a/scripts/build/debug/200-duma.sh	Mon Jun 30 11:58:58 2008 +0000
+++ b/scripts/build/debug/200-duma.sh	Mon Jun 30 20:37:14 2008 +0000
@@ -58,15 +58,9 @@
         CT_DoLog EXTRA "Installing wrapper script"
         mkdir -p "${CT_DEBUG_INSTALL_DIR}/usr/bin"
         # Install a simpler, smaller, safer wrapper than the one provided by D.U.M.A.
-        cat >"${CT_DEBUG_INSTALL_DIR}/usr/bin/duma" <<_EOF_
-#!/bin/sh
-if [ \$# -eq 0 ]; then
-  echo "Usage: \$0 <executable [args]>"
-  exit 1
-fi
-export LD_PRELOAD="${duma_so}"
-exec "\$@"
-_EOF_
+        sed -r -e 's:^LIBDUMA_SO=.*:LIBDUMA_SO=/usr/lib/'"${duma_so}"':;'   \
+            "${CT_LIB_DIR}/scripts/build/debug/duma.in"                     \
+            >"${CT_DEBUG_INSTALL_DIR}/usr/bin/duma"
         chmod 755 "${CT_DEBUG_INSTALL_DIR}/usr/bin/duma"
     fi
 
diff -r c74132339c44 -r 0d7348cb7faa scripts/build/debug/duma.in
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/build/debug/duma.in	Mon Jun 30 20:37:14 2008 +0000
@@ -0,0 +1,44 @@
+#!/bin/sh
+# (C) 2008 Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
+# Licensed under the GPL v.2
+
+LIBDUMA_SO=
+
+case "$1" in
+  -on)
+    case "${LD_PRELOAD}" in
+      *${LIBDUMA_SO}*) ;;
+      *) LD_PRELOAD="${LIBDUMA_SO} ${LD_PRELOAD}";;
+    esac
+    shift
+    ;;
+  -off)
+    LD_PRELOAD="${LD_PRELOAD//${LIBDUMA_SO}/}"
+    shift
+    ;;
+  -show)
+    case "${LD_PRELOAD}" in
+      *${LIBDUMA_SO}*) echo "duma is enabled";;
+      *)               echo "duma is disabled";;
+    esac
+    exit 0
+    ;;
+  "")
+    cat <<_EOF_
+Usage:
+    . $0 <-on|-off|-show>
+        Sets, unsets or show DUMA usage.
+    $0 <executable [arg...]>
+        Execute 'executable' (with arguments 'args') using DUMA.
+_EOF_
+    false # Don't 'exit', we could well be source'd
+    ;;
+  *)
+    exec "$0" -on "$@"
+    ;;
+esac
+
+export LD_PRELOAD
+if [ -n "$1" ]; then
+  exec "$@"
+fi