102 lines
2.7 KiB
Go
102 lines
2.7 KiB
Go
package linuxstatus
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"go.wit.com/log"
|
|
)
|
|
|
|
func GetProcessNameByPort(port int) string {
|
|
// Convert port to hex string
|
|
portHex := strconv.FormatInt(int64(port), 16)
|
|
|
|
// Function to search /proc/net/tcp or /proc/net/udp
|
|
searchProcNet := func(file string) string {
|
|
data, err := ioutil.ReadFile(file)
|
|
if err != nil {
|
|
return ""
|
|
}
|
|
// log.Log(PROC, "searchProcNet() data:", string(data))
|
|
|
|
lines := strings.Split(string(data), "\n")
|
|
for _, line := range lines {
|
|
fields := strings.Fields(line)
|
|
log.Log(PROC, "searchProcNet() portHex:", portHex)
|
|
if (len(fields) > 9) {
|
|
log.Log(PROC, "searchProcNet() fields[9]", fields[9])
|
|
}
|
|
log.Log(PROC, "searchProcNet() lines:", line)
|
|
if len(fields) > 1 {
|
|
parts := strings.Split(fields[1], ":")
|
|
if len(parts) > 1 {
|
|
// Convert the hexadecimal string to an integer
|
|
value, _ := strconv.ParseInt(parts[1], 16, 64)
|
|
log.Log(PROC, "searchProcNet() value, port =", value, port, "parts[1] =", parts[1])
|
|
if (port == int(value)) {
|
|
log.Log(PROC, "searchProcNet() THIS IS THE LINE:", fields)
|
|
return fields[9]
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return ""
|
|
}
|
|
|
|
// Search TCP and then UDP
|
|
inode := searchProcNet("/proc/net/tcp")
|
|
if inode == "" {
|
|
inode = searchProcNet("/proc/net/udp")
|
|
}
|
|
log.Log(PROC, "searchProcNet() inode =", inode)
|
|
|
|
// Search for process with the inode
|
|
procs, _ := ioutil.ReadDir("/proc")
|
|
for _, proc := range procs {
|
|
if !proc.IsDir() {
|
|
continue
|
|
}
|
|
|
|
fdPath := filepath.Join("/proc", proc.Name(), "fd")
|
|
fds, err := ioutil.ReadDir(fdPath)
|
|
if err != nil {
|
|
continue // Process might have exited; skip it
|
|
}
|
|
|
|
for _, fd := range fds {
|
|
fdLink, _ := os.Readlink(filepath.Join(fdPath, fd.Name()))
|
|
var s string
|
|
s = "socket:["+inode+"]"
|
|
if strings.Contains(fdLink, "socket:[") {
|
|
log.Log(PROC, "searchProcNet() fdLink has socket:", fdLink)
|
|
log.Log(PROC, "searchProcNet() proc.Name() =", proc.Name(), "s =", s)
|
|
}
|
|
if strings.Contains(fdLink, "socket:[35452]") {
|
|
log.Log(PROC, "searchProcNet() found proc.Name() =", proc.Name(), fdLink)
|
|
return proc.Name()
|
|
}
|
|
if strings.Contains(fdLink, "socket:[35450]") {
|
|
log.Log(PROC, "searchProcNet() found proc.Name() =", proc.Name(), fdLink)
|
|
return proc.Name()
|
|
}
|
|
if strings.Contains(fdLink, "socket:[35440]") {
|
|
log.Log(PROC, "searchProcNet() found proc.Name() =", proc.Name(), fdLink)
|
|
return proc.Name()
|
|
}
|
|
if strings.Contains(fdLink, "socket:[21303]") {
|
|
log.Log(PROC, "searchProcNet() found proc.Name() =", proc.Name(), fdLink)
|
|
// return proc.Name()
|
|
}
|
|
if strings.Contains(fdLink, "socket:["+inode+"]") {
|
|
return proc.Name()
|
|
}
|
|
}
|
|
}
|
|
|
|
return ""
|
|
}
|