From 2fbca31f69c1628a14d34852175e996d365a3c28 Mon Sep 17 00:00:00 2001
From: Harald Pfeiffer <coding@lirion.de>
Date: Sun, 12 Jan 2025 00:22:49 +0100
Subject: fake real information in display demo from running system
---
issues/display | 74 +++++++++++++++++++++++++++++++++++++++++++++++-----------
1 file changed, 60 insertions(+), 14 deletions(-)
diff --git a/issues/display b/issues/display
index 6c16166..70f9dca 100755
--- a/issues/display
+++ b/issues/display
@@ -1,4 +1,13 @@
#!/usr/bin/env bash
+
+MYTDIR="$(mktemp -d --tmpdir osissue.XXXXXX)" || exit 1
+MYPWD="$(cd "$(dirname "$0")" && pwd)" || exit 2
+function ctrl_c {
+ if [ ! -z "$MYTDIR" ]; then
+ rm -rf "$MYTDIR"
+ fi
+ exit 130
+}
if [ -n "$1" ];then
FARR="$1"
if [ ! -e "$FARR" ];then FARR="$FARR.issue";fi
@@ -7,18 +16,55 @@ else
FARR=( $(ls *.issue) "issue.blank.1" "issue.blank.2" )
unset IFS
fi
-for i in "${FARR[@]}";do
- IFS=$'\n'
- FLARR=( $(cat "$i") )
- unset IFS
- if [ -z "$COLUMNS" ];then
- COLUMNS="$(tput cols)"
- [ -z "$COLUMNS" ] && COLUMNS=20
+if [ -r "/etc/os-release" ]; then
+ source "/etc/os-release"
+fi
+if [ -n "$VARIABLE" ]; then
+ OSSTR_S="$VARIABLE"
+elif [ -n "$PRETTY_NAME" ]; then
+ OSSTR_S="$PRETTY_NAME"
+else
+ OSSTR_S="$(uname -o)"
+fi
+OSSTR_M="$(uname -m)"
+OSSTR_R="$(uname -r)"
+OSSTR_N="$(uname -n)"
+OSSTR_L="$(tty | sed 's#^/dev/##')"
+# see man:agetty(8), ... kinda: we don't have e.g. 4{IFACENAME} anywhere, so we only do the
+# argumentless variants
+OSSTR_4="$(ip -4 -o address show nomaster primary scope global up | head -n 1 | awk '{print $4}' | awk -F/ '{print $1}')"
+if [ -z "$OSSTR_4" ]; then
+ OSSTR_4="$(getent ahostsv4 "$(hostname -s)" | head -n1 | awk '{print $1}')"
+ if [ -z "$OSSTR_4" ]; then OSSTR_4="127.0.0.1"; fi
+fi
+OSSTR_6="$(ip -6 -o address show nomaster primary scope global up | head -n 1 | awk '{print $4}' | awk -F/ '{print $1}')"
+if [ -z "$OSSTR_6" ]; then
+ OSSTR_6="$(getent ahostsv6 "$(hostname -s)" | head -n1 | awk '{print $1}')"
+ if [ -z "$OSSTR_6" ]; then
+ # this could now be a number of reasons, we act as if IPv6 had been deactivated
+ OSSTR_6="::ffff:127.0.1.1"
fi
- printf "\\033[;1m"
- for ((j=0;j<$COLUMNS;++j)); do printf -- "-"; done
- printf "\\n %b\\n" "$i"
- for ((j=0;j<$COLUMNS;++j)); do printf -- "-"; done
- printf "\\033[0m\\n"
- printf "%b\\n" "${FLARR[@]}"
-done
+fi
+(
+ cd "$MYPWD" || exit 10
+ for issuefile in "${FARR[@]}";do
+ cp -p "$issuefile" "${MYTDIR}/" || break
+ sed -i "s#\\\\S#$OSSTR_S#;s#\\\\m#$OSSTR_M#;s#\\\\l#$OSSTR_L#" "${MYTDIR}/${issuefile}" &&\
+ sed -i "s#\\\\4#$OSSTR_4#;s#\\\\6#$OSSTR_6#" "${MYTDIR}/${issuefile}" &&\
+ sed -i "s#\\\\r#$OSSTR_R#;s#\\\\n#$OSSTR_N#" "${MYTDIR}/${issuefile}" || break
+ IFS=$'\n'
+ FLARR=( $(cat "${MYTDIR}/${issuefile}") )
+ unset IFS
+ if [ -z "$COLUMNS" ];then
+ COLUMNS="$(tput cols)"
+ [ -z "$COLUMNS" ] && COLUMNS=20
+ fi
+ printf "\\033[;1m"
+ for ((j=0;j<$COLUMNS;++j)); do printf -- "-"; done
+ printf "\\n %b\\n" "$issuefile"
+ for ((j=0;j<$COLUMNS;++j)); do printf -- "-"; done
+ printf "\\033[0m\\n"
+ printf "%b\\n" "${FLARR[@]}"
+ done
+)
+rm -rf "$MYTDIR"
--
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