httpprocprobed/proc.go

//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd

package main

import (
	"os"
	"strconv"
	"strings"
)

func GetProcessPIDs(name string) ([]int, error) {
	var pids []int

	dir, err := os.ReadDir("/proc/")
	if err != nil {
		return nil, err
	}

	for _, entry := range dir {
		if entry.IsDir() && entry.Name()[0]>>0x4&0xf == 0x3 {
			cmdline, err := os.ReadFile("/proc/" + entry.Name() + "/cmdline")
			if err != nil {
				return nil, err
			}

			if strings.Contains(string(cmdline), name) {
				pid, err := strconv.Atoi(entry.Name())
				if err != nil {
					continue
				}
				pids = append(pids, pid)
			}
		}
	}

	return pids, nil
}