Bug#1028329: padsp: LD_PRELOAD not set correctly

[Detlev Zundel]

Package: pulseaudio-utils
Version: 16.1+dfsg1-2+b1
Severity: important

Hi, the /usr/bin/padsp script does not correctly set LD_PRELOAD because the
script looks broken. Lines 76-80:

if [ x"$LD_PRELOAD" = x ] ; then
   LD_PRELOAD="/usr/\\$$LIB/pulseaudio/libpulsedsp.so"
else
   LD_PRELOAD="$LD_PRELOAD /usr/\\$$LIB/pulseaudio/libpulsedsp.so"
fi

The "\\$$LIB" evaluates in sh to a backslash followed by the pid of the shell.
This of course does not work:

dzu at krikkit:~$ padsp scratch
ERROR: ld.so: object '/usr/\80625LIB/pulseaudio/libpulsedsp.so' from LD_PRELOAD
cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/usr/\80625LIB/pulseaudio/libpulsedsp.so' from LD_PRELOAD
cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/usr/\80625LIB/pulseaudio/libpulsedsp.so' from LD_PRELOAD
cannot be preloaded (cannot open shared object file): ignored.
Executing: /usr/lib/squeak/4.10.2.2614+20120917~dfsg/squeakvm -encoding UTF-8
-vm-display-x11 -plugins
/usr/lib/scratch/plugins/:/usr/lib/squeak/4.10.2.2614+20120917~dfsg/
/usr/share/scratch/Scratch.image
ERROR: ld.so: object '/usr/\80625LIB/pulseaudio/libpulsedsp.so' from LD_PRELOAD
cannot be preloaded (cannot open shared object file): ignored.
dzu at krikkit:~$


-- System Information:
Debian Release: bookworm/sid
  APT prefers testing-debug
  APT policy: (500, 'testing-debug'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.0.0-6-amd64 (SMP w/8 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages pulseaudio-utils depends on:
ii  libc6        2.36-7
ii  libpulse0    16.1+dfsg1-2+b1
ii  libpulsedsp  16.1+dfsg1-2+b1
ii  libsndfile1  1.2.0-1
ii  libx11-6     2:1.8.3-3
ii  libx11-xcb1  2:1.8.3-3
ii  libxcb1      1.15-1

pulseaudio-utils recommends no packages.

Versions of packages pulseaudio-utils suggests:
ii  avahi-daemon  0.8-6+b1
ii  pulseaudio    16.1+dfsg1-2+b1

-- no debconf information