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util.go
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util.go
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/*
Copyright 2017 The Rook Authors. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package util
import (
"net"
"strconv"
"github.com/coreos/pkg/capnslog"
)
const (
RBDSysBusPathDefault = "/sys/bus/rbd"
RBDDevicesDir = "devices"
RBDDevicePathPrefix = "/dev/rbd"
)
var logger = capnslog.NewPackageLogger("github.com/rook/rook", "op-ceph-util")
// GetIPFromEndpoint return the IP from an endpoint string (192.168.0.1:6789)
func GetIPFromEndpoint(endpoint string) string {
host, _, err := net.SplitHostPort(endpoint)
if err != nil {
logger.Errorf("failed to split ip and port for endpoint %q. %v", endpoint, err)
}
return host
}
// GetPortFromEndpoint return the port from an endpoint string (192.168.0.1:6789)
func GetPortFromEndpoint(endpoint string) int32 {
var port int
_, portString, err := net.SplitHostPort(endpoint)
if err != nil {
logger.Errorf("failed to split host and port for endpoint %q, assuming default Ceph port %q. %v", endpoint, portString, err)
} else {
//nolint:gosec // using Atoi to convert type into int is not a real risk
port, err = strconv.Atoi(portString)
if err != nil {
logger.Errorf("failed to convert %q to integer. %v", portString, err)
}
}
//#nosec G109 -- This is just a lower bit to bigger bit conversion
portInt32 := int32(port)
return portInt32
}