1 // Copyright 2019 The Prometheus Authors 2 // Licensed under the Apache License, Version 2.0 (the "License"); 3 // you may not use this file except in compliance with the License. 4 // You may obtain a copy of the License at 5 // 6 // http://www.apache.org/licenses/LICENSE-2.0 7 // 8 // Unless required by applicable law or agreed to in writing, software 9 // distributed under the License is distributed on an "AS IS" BASIS, 10 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11 // See the License for the specific language governing permissions and 12 // limitations under the License. 13 14 package procfs 15 16 import ( 17 "strings" 18 19 "github.com/prometheus/procfs/internal/util" 20 ) 21 22 // Environ reads process environments from `/proc/<pid>/environ`. 23 func (p Proc) Environ() ([]string, error) { 24 environments := make([]string, 0) 25 26 data, err := util.ReadFileNoStat(p.path("environ")) 27 if err != nil { 28 return environments, err 29 } 30 31 environments = strings.Split(string(data), "\000") 32 if len(environments) > 0 { 33 environments = environments[:len(environments)-1] 34 } 35 36 return environments, nil 37 } 38