| // Copyright 2018 The Prometheus Authors |
| // 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. |
| |
| //go:build !netbsd && !openbsd && !solaris && !windows |
| // +build !netbsd,!openbsd,!solaris,!windows |
| |
| package procfs |
| |
| import ( |
| "syscall" |
| ) |
| |
| // isRealProc determines whether supplied mountpoint is really a proc filesystem. |
| func isRealProc(mountPoint string) (bool, error) { |
| stat := syscall.Statfs_t{} |
| err := syscall.Statfs(mountPoint, &stat) |
| if err != nil { |
| return false, err |
| } |
| |
| // 0x9fa0 is PROC_SUPER_MAGIC: https://elixir.bootlin.com/linux/v6.1/source/include/uapi/linux/magic.h#L87 |
| return stat.Type == 0x9fa0, nil |
| } |