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Directory :  /proc/2/root/proc/2/cwd/proc/3/root/var/lib/dpkg/info/

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[ HOME SHELL ]     

Current File : /proc/2/root/proc/2/cwd/proc/3/root/var/lib/dpkg/info/adduser.preinst
#! /bin/sh


set -eu

# this needs to be here until bookworm+2.
# this is messy
# the SHA sums are from the respective reference files in
# /usr/share/adduser with DIR_MODE lines grepped out.
# that way we only have to worry about DIR_MODE explicitly here.

# sha512sum from adduser 3.115
# sha512sum is in coreutils, Essential: yes, so it's ok to use

create_adduser_conf() {
  OLDVERSION="$1"
  if dpkg --compare-versions "$OLDVERSION" lt 3.114; then
    printf "Upgrading from a version older than Debian 10. That is no longer supported. You can continue after answering the dpkg configuration file question.\n"
    return 0
  elif dpkg --compare-versions "$OLDVERSION" lt 3.125; then
    # we are upgrading from a supported version. Since the conffile can
    # have remained unmodified over multiple past upgrades, it does not make
    # sense to distinguish between upgrades from which version. We just treat
    # all known hashes equally.
    SHA="\
    d8502b9daf3a3a486ca563a15f2bb03a25eb9247d201d15a4640088626c660a03416b62217f59c37aa94050317243b8979fd46d99e081f555eb7f8adf325a7f8 \
    42ead32621022ca6c5d63e95b19838442cdd118d64077574b80fdafd5e6946a6de4608cad89576f887bec85c3398248ccb8f2a9d5c94d0571cc36c009c0f1b33 \
    53ab619b03fb957e8b965b745257ae44d626851b4e23d407e25d21e20013cea2a32b090c9864695fab7eb0c3310b44ddba363e9e8370ab878e6a91aafb0e2839 \
    5f213119a342d8923113fc93a0f2ac15e223d13574ccafe02731f31aeb8c04ab0d3ce5b7d9d3eef4c5382038935e0bece43b5fb2765e31b4c82af1f0bdcc711a \
    ab6adcf4067d7d50ef45cc93ca3a8c54b7ab3e7748420434ad846e8d6e6c34d2ae10d576029d3e1e501f7a743951aed3876c8f3d0e03a918410fa3c9d82460e2 \
    b26329cba15b817a79d19c542c49a3e34b7535ffbd60057df7aca2b7027a1ad8db0cdecfd5c00c40d60f50e8b7e2e1675d8401696cf8933a5530e31e430a6675 \
    a91cdf6bf59602a7c7dbb745bca1b4d374035026dd89aa62eb9edea8ffcdff4a764a2274770de81687291d57cf9fbc0f0eb495451460c2b44229cebcecd9d870 \
    d8502b9daf3a3a486ca563a15f2bb03a25eb9247d201d15a4640088626c660a03416b62217f59c37aa94050317243b8979fd46d99e081f555eb7f8adf325a7f8"
  else
    # old version already has adduser.conf as a dpkg-conffile, nothing to do.
    return 0
  fi
  AUCSHA="$(< /etc/adduser.conf grep -v '^DIR_MODE' | sha512sum -)"
  MATCH=0
  for sha in ${SHA}; do
    if [ "${sha}  -" = "${AUCSHA}" ]; then
      MATCH=1
      break
    fi
  done
  if [ "${MATCH}" = 1 ]; then
    if [ -e "/etc/adduser.conf.update-old" ]; then
      printf "cannot move unchanged adduser.conf to adduser.conf.update-old. You can continue after answering the dpkg configuration file question.\n"
    else
      DIR_MODE="$(< /etc/adduser.conf sed -n '/^\(DIR_MODE=\)/{s///;p;q;}')"
      DIR_MODE="${DIR_MODE:-0700}"
      if [ "$DIR_MODE" != "0700" ] && [ "$DIR_MODE" != "0755" ]; then
	# We reach this point of control if the local file is identical to what
	# we have shipped AND DIR_MODE is neither set to 0700 and 0755. This must
	# be a local change, therefore a dpkg prompt is expected.
        printf "DIR_MODE default has changed from %s to 0700. You can continue after answering the dpkg configuration file question.\n" "${DIR_MODE}"
      else
	# We reach this point of control if the local file is identical to what
	# we have shipped AND DIR_MODE is either set to 0700 or  0755. If it is
	# 0700, then our change is already what the user has configured before
	# (no prompt needed). If it is 0755, the user never changed the default,
	# hence we are policy compliant to overwrite our unchanged default with
	# the new one (no prompt needed as well).
        printf "moving unchanged adduser.conf to adduser.conf.update-old. New dpkg-conffile will come from the package.\n"
        mv --no-clobber /etc/adduser.conf /etc/adduser.conf.update-old
      fi
    fi
  else
      printf "adduser.conf with unknown checksum (probably locally changed) encountered. You can continue after answering the dpkg configuration file question.\n"
  fi
}

case $1 in
  upgrade)
    create_adduser_conf "${2:-}"
    ;;
esac

set +eu



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