kiyor/mssh: ssh.go; 68 LoC

Found a possible issue in [kiyor/mssh](https://www.github.com/kiyor/mssh) at [ssh.go](https://github.com/kiyor/mssh/blob/0547c406881facc504989e0a08dbe9d8f8479c90/ssh.go#L142-L209)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first issue it finds, so please do not limit your consideration to the contents of the below message.

> range-loop variable conn used in defer or goroutine at line 161

[Click here to see the code in its original context.](https://github.com/kiyor/mssh/blob/0547c406881facc504989e0a08dbe9d8f8479c90/ssh.go#L142-L209)

Click here to show the 68 line(s) of Go which triggered the analyzer.

```go
for _, conn := range conns {
wg.Add(1)
*count++
if conf.Debug {
color.Printf("@{y}%s\t\tcounter %3d\n", conn, *count)
}
for *count >= conf.Workers {
time.Sleep(10 * time.Millisecond)
}
go func(h string) {
defer wg.Done()
var r Result

r.Host = h
client, err := ssh.Dial("tcp", h, config)
if err != nil {
color.Printf("@{!r}%s: Failed to connect: %s\n", h, err.Error())
*count--
if conf.Debug {
color.Printf("@{y}%s\t\tcounter %3d\n", conn, *count)
}
return
}

session, err := client.NewSession()
if err != nil {
color.Printf("@{!r}%s: Failed to create session: %s\n", h, err.Error())
*count--
if conf.Debug {
color.Printf("@{y}%s\t\tcounter %3d\n", conn, *count)
}
return
}
defer session.Close()

/* not working */
/* session.Setenv("PATH", "/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin") */

var b bytes.Buffer
var e bytes.Buffer
session.Stdout = &b
session.Stderr = &e
if err := session.Run(command); err != nil {
color.Printf("@{!r}%s: Failed to run: %s\n", h, err.Error())
color.Printf("@{!r}%s\n", strip(e.String()))
*count--
if conf.Debug {
color.Printf("@{y}%s\t\tcounter %3d\n", conn, *count)
}
return
}
if !conf.Background {
r.Res = strip(b.String())
} else {
r.Res = "command success sent and out put in remote server's ~/nohup.out"
}
color.Printf("@{!g}%s\n", r.Host)
fmt.Println(r.Res)

*count--
if conf.Debug {
color.Printf("@{y}%s\t\tcounter %3d\n", conn, *count)
}

runtime.Gosched()
queue <- r
}(conn)
}

```

Leave a reaction on this issue to contribute to the project by classifying this instance as a **Bug** :-1:, **Mitigated** :+1:, or **Desirable Behavior** :rocket:
See the descriptions of the classifications [here](https://github.com/github-vet/rangeclosure-findings#how-can-i-help) for more information.

commit ID: 0547c406881facc504989e0a08dbe9d8f8479c90

Read ssh.go lines 142-209, especially the range loop and goroutine containing the analyzer warning about conn. Determine whether the captured range variable is a real issue, then classify it by leaving the Bug, Mitigated, or Desirable Behavior reaction described in the issue.

Written by the indexing model from the issue text.