#!/bin/bash
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-FileType: SOURCE
# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
# SPDX-PackageName: CISS.debian.live.builder
# SPDX-Security-Contact: security@coresecret.eu

#######################################
# Scanner for 'libwrap' usage.
# Arguments:
#  None
#######################################
scanlw() {
  printf "\e[92m🔍 Scanning all running processes for 'libwrap' usage ... \e[0m\n"
  printf "\n"

  # Collect binaries from all running PIDs
  declare pid exe_path comm user

  for pid in $(ps -e -o pid=); do
    exe_path=$(readlink -f "/proc/${pid}/exe" 2>/dev/null)

    # Skip if not a regular executable
    [[ -x "${exe_path}" ]] || continue

    # Check if the binary is linked with libwrap
    if ldd "$exe_path" 2>/dev/null | grep -q "libwrap"; then
      comm=$(ps -p "$pid" -o comm=)
      user=$(ps -p "$pid" -o user=)
      printf "\e[92m✅ PID: %s (%s) [User: %s] is linked with 'libwrap.so'. \e[0m\n" "${pid}" "${comm}" "${user}"
    fi
  done
  printf "\n"
  printf "\e[92m✅ Scan complete. \e[0m\n"
}
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh