a

2026-05-11 09:15:08 +02:00
parent 9bec2b9e42
commit 404ee3fec4
641 changed files with 416825 additions and 0 deletions
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+l_valid_shells=$(grep -v "nologin" /etc/shells | sed -r '/^\//{s,/,\\\\/,g;p}' | paste -s -d '|')
+
+if grep -qE '^\s*UID_MIN\s+([0-9]+)' /etc/login.defs; then
+	uid_min=$(grep -oP '^\s*UID_MIN\s+\K[0-9]+' /etc/login.defs)
+else
+	printf "ERROR: UID_MIN not found in /etc/login.defs.\n"
+	exit 1
+fi
+while IFS=: read -r username _ uid _ _ _ shell; do
+	if [[ -n "$uid" && "$uid" =~ ^[0-9]+$ ]]; then
+		if echo "$username" | grep -qE "^(root|halt|sync|shutdown|nfsnobody)$" &&
+			{ [ "$uid" -lt "$uid_min" ] || [ "$uid" -eq 65534 ]; } &&
+			echo "$shell" | grep -qE "^($l_valid_shells)$"; then
+			exit 1
+		fi
+	fi
+done </etc/passwd
+exit 0