wip

internal/utils/cmd.go

@@ -0,0 +1,68 @@
+// ALR - Any Linux Repository
+// Copyright (C) 2025 Евгений Храмов
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package utils
+
+import (
+	"log/slog"
+	"os"
+	"os/user"
+	"strconv"
+	"syscall"
+
+	"github.com/leonelquinteros/gotext"
+)
+
+func GetUidGidAlrUser() (int, int, error) {
+	u, err := user.Lookup("alr")
+	if err != nil {
+		return 0, 0, err
+	}
+
+	uid, err := strconv.Atoi(u.Uid)
+	if err != nil {
+		return 0, 0, err
+	}
+	gid, err := strconv.Atoi(u.Gid)
+	if err != nil {
+		return 0, 0, err
+	}
+
+	return uid, gid, nil
+}
+
+func DropCapsToAlrUser() error {
+	uid, gid, err := GetUidGidAlrUser()
+	if err != nil {
+		return err
+	}
+	err = syscall.Setgid(gid)
+	if err != nil {
+		return err
+	}
+	err = syscall.Setuid(uid)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func ExitIfNotRoot() {
+	if os.Getuid() != 0 {
+		slog.Error(gotext.Get("You need to be root"))
+		os.Exit(1)
+	}
+}