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
14package procfs
15
16import (
17	"strings"
18
19	"github.com/prometheus/procfs/internal/util"
20)
21
22// Environ reads process environments from /proc/<pid>/environ
23func (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