// Copyright (C) 2019-2023 Nicola Murino
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, version 3.
//
// 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.

//go:build unix

package util

import (
	"strconv"
	"syscall"

	"github.com/drakkan/sftpgo/v2/internal/logger"
)

// SetUmask sets the specified umask
func SetUmask(val string) {
	if val == "" {
		return
	}
	umask, err := strconv.ParseUint(val, 8, 31)
	if err != nil {
		logger.Error(logSender, "", "invalid umask %q: %v", val, err)
		return
	}
	logger.Debug(logSender, "", "set umask to: %d, configured value: %q", umask, val)
	syscall.Umask(int(umask))
}