install_easy: do not use privileged /proc/1/exe

IvanKulagin · Nov 24, 2021 · 473a2c5 · 473a2c5
1 parent 980c05f
commit 473a2c5
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/install_easy.sh b/install_easy.sh
@@ -206,7 +206,8 @@ check_system()
 
 	local UNAME=$(uname)
 	if [ "$UNAME" = "Linux" ]; then
-		local INIT="$(basename $(readlink /proc/1/exe))"
+		# do not use 'exe' because it requires root
+		local INIT="$(basename $(sed 's/\x0/\n/g' /proc/1/cmdline  | head -n 1))"
 		# some distros include systemctl without systemd
 		if [ -d "$SYSTEMD_DIR" ] && [ -x "$SYSTEMCTL" ] && [ "$INIT" = "systemd" ]; then
 			SYSTEM=systemd

diff --git a/uninstall_easy.sh b/uninstall_easy.sh
@@ -53,7 +53,8 @@ check_system()
 
 	local UNAME=$(uname)
 	if [ "$UNAME" = "Linux" ]; then
-		local INIT="$(basename $(readlink /proc/1/exe))"
+		# do not use 'exe' because it requires root
+		local INIT="$(basename $(sed 's/\x0/\n/g' /proc/1/cmdline  | head -n 1))"
 		# some distros include systemctl without systemd
 		if [ -d "$SYSTEMD_DIR" ] && [ -x "$SYSTEMCTL" ] && [ "$INIT" = "systemd" ]; then
 			SYSTEM=systemd