V8.00.000.2025.06.17

Signed-off-by: Marc S. Weidner <msw@coresecret.dev>

func/system/4140_setup_hostname.sh

@@ -0,0 +1,74 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.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.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.installer
+# SPDX-Security-Contact: security@coresecret.eu
+
+guard_sourcing
+
+#######################################
+# Generate files: '/etc/hostname' | '/etc/hosts' | '/etc/mailname'
+# Globals:
+#   TARGET
+#   VAR_FINAL_FQDN
+#   VAR_FINAL_IPV4
+#   VAR_FINAL_IPV6
+#   VAR_LINK_IPV6
+#   network_ipv6
+# Arguments:
+#   None
+# Returns:
+#   0: on success
+#######################################
+setup_hostname() {
+  ### Create '${TARGET}/etc/hostname' file.
+  cat << EOF >| "${TARGET}/etc/hostname"
+${VAR_FINAL_FQDN}
+EOF
+  chmod 0644 "${TARGET}/etc/hostname"
+  do_log "info" "true" "File generated: '${TARGET}/etc/hostname' | hostname '${VAR_FINAL_FQDN}'."
+
+  ### Create '${TARGET}/etc/mailname' file.
+  cat << EOF >| "${TARGET}/etc/mailname"
+${VAR_FINAL_FQDN}
+EOF
+  chmod 0644 "${TARGET}/etc/mailname"
+  do_log "info" "true" "File generated: '${TARGET}/etc/mailname' | mailname '${VAR_FINAL_FQDN}'."
+
+  ### Generate '${TARGET}/etc/hosts' basic IPv4 entries
+  cat << EOF >| "${TARGET}/etc/hosts"
+127.0.0.1 localhost
+${VAR_FINAL_IPV4} ${VAR_FINAL_FQDN}
+
+EOF
+  chmod 0644 "${TARGET}/etc/hosts"
+  do_log "info" "true" "File generated: '${TARGET}/etc/hosts' with basic IPv4 entries."
+
+  ### Generate '${TARGET}/etc/hosts' basic IPv6 entries
+  if [[ "${VAR_LINK_IPV6,,}" == "true" || "${network_ipv6,,}" == "true" ]]; then
+
+    cat << EOF >> "${TARGET}/etc/hosts"
+# The following lines are desirable for IPv6 capable hosts
+::1     localhost ip6-localhost ip6-loopback
+fe00::0 ip6-localnet
+ff00::0 ip6-mcastprefix
+ff02::1 ip6-allnodes
+ff02::2 ip6-allrouters
+ff02::3 ip6-allhosts
+${VAR_FINAL_IPV6} ${VAR_FINAL_FQDN}
+
+EOF
+
+    do_log "info" "true" "File updated: '${TARGET}/etc/hosts' with basic IPv6 entries."
+
+  fi
+
+  return 0
+}
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh