add tool to enter vpn

Makefile

@@ -1,6 +1,6 @@
 CFLAGS = -std=gnu99 -pie -fPIC -pedantic -Wno-imports -Wunused -Wno-missing-field-initializers -Wextra -Wunreachable-code -O3
 
-all: wireguard_mount wireguard_resolve
+all: wireguard_mount wireguard_resolve enter_vpn
 
 wireguard_mount: src/wireguard-mount.c
 	mkdir -p bin
@@ -10,7 +10,16 @@ wireguard_resolve: src/resolve.c src/resolve.s
 	mkdir -p bin
 	gcc -shared -o bin/wireguard-resolve.so -nostdlib -fPIC src/resolve.c src/resolve.s
 
-install_mount: systemd bin:
+enter_vpn: src/enter_vpn.c
+	mkdir -p bin
+	gcc $(CFLAGS) -o bin/enter_vpn src/enter_vpn.c
+
+format: src scripts
+	clang-format -i src/*.c
+	ruff --fix scripts
+	black scripts
+
+install_mount: systemd bin
 	mkdir -p /snacks/wireguard/bin
 	cp bin/wireguard-mount /snacks/wireguard/bin/wireguard-mount
 	cp systemd/wireguard-mount.service /etc/systemd/system/wireguard-mount.service
@@ -28,3 +37,6 @@ install_basic: systemd scripts bin
 	cp scripts/inner_basic.sh /snacks/wireguard/scripts/inner_basic.sh
 	chmod -R 755 /snacks/wireguard
 	systemctl daemon-reload
+
+
+