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From: Richard Lewis <richard.lewis.debian@googlemail.com>
Date: Wed, 14 Aug 2024 18:24:14 +0100
Subject: check_if_debian
New helper to check whether reported files are from Debian packahes,
using dpkg-query This is safe to use on non-Debian systems (it will do
nothing unless dpkg-query is found)
Forwarded: yes
(Forwarded by email: 21 Dec 2024)
---
check_if_debian | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
create mode 100755 check_if_debian
diff --git a/check_if_debian b/check_if_debian
new file mode 100755
index 0000000..c8717fe
--- /dev/null
+++ b/check_if_debian
@@ -0,0 +1,37 @@
+#!/bin/sh
+
+#usage: file/to/check [/path/tp/dpkg-query [mode]]
+# see if $1 was installed by dpkg
+dpkg_query="${2-/usr/bin/dpkg-query}"
+mode="${3-rt}"
+if [ ! -x "${dpkg_query}" ] || [ "${mode}" = "pm" ]; then
+ # not Debian or using -r
+ echo "$1"
+ exit 0
+fi
+file_to_report="/${1#/}" # ensure 1 leading '/'
+
+package=$("${dpkg_query}" --search -- "$file_to_report" 2>/dev/null)
+if [ -z "$package" ]; then
+ # dpkg-query does not understand usrmerge
+ case "$file_to_report" in
+ # dirs which become symlinks (see /usr/lib/usrmerge/convert-usrmerge)
+ /bin/*|/sbin/*|/lib/*|/lib64/*|/lib32/*|/libo32/*|/libx32/*)
+ # /bin/apt not found because /usr/bin/apt shipped
+ package=$("${dpkg_query}" --search -- "/usr$file_to_report" 2>/dev/null)
+ ;;
+ /usr/bin/*|/usr/sbin/*|/usr/lib/*|/usr/lib64/*|/usr/lib32/*|/usr/libo32/*|/usr/libx32/*)
+ # /usr/bin/bash not found because /bin/bash shipped
+ package=$("${dpkg_query}" --search -- "${file_to_report#/usr}" 2>/dev/null)
+ ;;
+ esac
+fi
+if [ -n "$package" ]; then
+ # package is <package>: /path/to/file
+ package="From Debian package: ${package%:*}"
+else
+ package="Not from a Debian package"
+fi
+# nb: $1 may be intentionally missing a /
+echo "$1 [$package]"
+exit 0
|
