dcorral/go-ssh-server
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dcorral
2025-11-06 22:23:59 +01:00
parent 28ed749316
commit eac6f2ce80
2 changed files with 7 additions and 7 deletions
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2
go.mod
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@@ -5,7 +5,7 @@ go 1.24.0
require ( require (
github.com/creack/pty/v2 v2.0.1 github.com/creack/pty/v2 v2.0.1
golang.org/x/crypto v0.43.0 golang.org/x/crypto v0.43.0
golang.org/x/term v0.37.0 golang.org/x/term v0.36.0
) )
require golang.org/x/sys v0.37.0 // indirect require golang.org/x/sys v0.37.0 // indirect

12
main.go
View File

@@ -97,15 +97,15 @@ func handleChannel(channel ssh.Channel, requests <-chan *ssh.Request) {
defer channel.Close() defer channel.Close()
var ptmx *os.File var ptmx *os.File
var termWidth, termHeight uint32 = 80, 24 var termWidth, termHeight uint32 = 80, 24
var term string var clientTerm string
for req := range requests { for req := range requests {
switch req.Type { switch req.Type {
case "pty-req": case "pty-req":
if len(req.Payload) >= 4 { if len(req.Payload) >= 4 {
termLen := binary.BigEndian.Uint32(req.Payload[0:4]) termLen := binary.BigEndian.Uint32(req.Payload[0:4])
if len(req.Payload) >= int(4+termLen+16) { if len(req.Payload) >= int(4+termLen+16) {
term = string(req.Payload[4 : 4+termLen]) clientTerm = string(req.Payload[4 : 4+termLen])
log.Println("Client TERM:", term) log.Println("Client TERM:", clientTerm)
cols := binary.BigEndian.Uint32(req.Payload[4+termLen : 4+termLen+4]) cols := binary.BigEndian.Uint32(req.Payload[4+termLen : 4+termLen+4])
rows := binary.BigEndian.Uint32(req.Payload[4+termLen+4 : 4+termLen+8]) rows := binary.BigEndian.Uint32(req.Payload[4+termLen+4 : 4+termLen+8])
if cols > 0 { if cols > 0 {
@@ -138,8 +138,8 @@ func handleChannel(channel ssh.Channel, requests <-chan *ssh.Request) {
} }
cmd := exec.Command(command) cmd := exec.Command(command)
envTerm := "TERM=xterm-256color" envTerm := "TERM=xterm-256color"
if term != "" { if clientTerm != "" {
envTerm = "TERM=" + term envTerm = "TERM=" + clientTerm
} }
cmd.Env = []string{"PATH=/bin", envTerm} cmd.Env = []string{"PATH=/bin", envTerm}
cmd.Dir = "/" cmd.Dir = "/"
@@ -149,7 +149,7 @@ func handleChannel(channel ssh.Channel, requests <-chan *ssh.Request) {
log.Println("PTY start error:", err) log.Println("PTY start error:", err)
return return
} }
if err := term.MakeRaw(int(ptmx.Fd())); err != nil { if _, err := term.MakeRaw(int(ptmx.Fd())); err != nil {
log.Println("MakeRaw master error:", err) log.Println("MakeRaw master error:", err)
} }
go func() { go func() {