GOnetstat

add by chenqi123

netstat function adjustment: To summarize the server connection and client connections

the output likes:

./cqnetstat | grep -i server

server: 10.78.199.11:8100 [10.78.199.11] server: 10.78.199.11:8102 [10.78.160.5] server: 10.78.199.11:8103 [10.78.160.5] server: 10.78.199.11:8001 [10.78.160.5 10.78.199.11] server: 10.78.199.11:41483 [223.202.6.26 10.78.160.36] server: 10.78.199.11:8002 [10.78.160.5 10.78.199.11] server: 10.78.199.11:8101 [10.78.160.5] server: 10.78.199.11:49298 [10.78.199.63 10.78.199.11] server: 10.78.199.11:22 [10.78.199.11 10.73.150.124 10.78.199.39 10.70.15.118] server: 10.78.199.11:8000 [10.78.199.11] server: 10.78.199.11:8104 [10.78.160.5]

./cqnetstat | grep -i client

client: 10.78.199.11 10.78.160.38:80 client: 10.78.199.11 10.78.199.24:22 client: 10.78.199.11 10.78.199.39:22 client: 10.78.199.11 10.78.160.43:8881 client: 10.78.199.11 10.78.160.6:8000 client: 10.78.199.11 10.78.236.104:22 client: 10.78.199.11 10.78.199.65:22 client: 10.78.199.11 10.70.195.216:514 client: 10.78.199.11 10.78.236.103:22 client: 10.78.199.11 10.78.199.8:22 client: 10.78.199.11 10.78.199.6:22 client: 10.78.199.11 10.78.199.21:22 client: 10.78.199.11 10.78.160.36:10000 client: 10.78.199.11 10.78.160.13:8410 client: 10.78.199.11 10.78.160.25:7500 client: 10.78.199.11 10.78.199.11:8002

Netstat implementation in Golang.

This Package get data from /proc/net/tcp|6 and /proc/net/udp|6 and parse /proc/[0-9]/fd/[0-9] to match the correct inode.

Usage

TCP/UDP

tcp_data := GOnetstat.Tcp()
udp_data := GOnetstat.Udp()

This will return a array of a Process struct like this

type Process struct {
    User         string
    Name         string
    Pid          string
    Exe          string
    State        string
    Ip           string
    Port         int64
    ForeignIp    string
    ForeignPort  int64
}

So you can loop through data output and format the output of your program in whatever way you want it. See the Examples folder!

TCP6/UDP6

tcp6_data := GOnetstat.Tcp6()
udp6_data := GOnetstat.Udp6()

The return will be a array of a Process struct like mentioned above. Still need to create a way to compress the ipv6 because is too long.