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telnetd: Inform client that we will echo

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The standard line editor rtems_shell_line_editor() produces an echo.
This commit is contained in:
Sebastian Huber
2012-09-28 15:41:33 +02:00
parent 3850af9511
commit e652e5f8db
1 changed files with 15 additions and 12 deletions
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cpukit/telnetd/pty.c
+15 -12
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@@ -88,6 +88,16 @@ static pty_t *telnet_ptys;
static rtems_device_major_number pty_major;
static
int send_iac(int minor,unsigned char mode,unsigned char option)
{
unsigned char buf[3];
buf[0]=IAC_ESC;
buf[1]=mode;
buf[2]=option;
return write(telnet_ptys[minor].socket,buf,sizeof(buf));
}
/* This procedure returns the devname for a pty slot free.
* If not slot availiable (field socket>=0)
@@ -118,6 +128,10 @@ char * telnet_get_pty(int socket)
t.tv_usec=00000;
setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, &t, sizeof(t));
telnet_ptys[ndx].socket=socket;
/* inform the client that we will echo */
send_iac(ndx, IAC_WILL, 1);
return telnet_ptys[ndx].devname;
};
};
@@ -138,17 +152,6 @@ static const char IAC_AYT_RSP[]="\r\nAYT? Yes, RTEMS-SHELL is here\r\n";
static const char IAC_BRK_RSP[]="<*Break*>";
static const char IAC_IP_RSP []="<*Interrupt*>";
static
int send_iac(int minor,unsigned char mode,unsigned char option)
{
unsigned char buf[3];
buf[0]=IAC_ESC;
buf[1]=mode;
buf[2]=option;
return write(telnet_ptys[minor].socket,buf,sizeof(buf));
}
static int
handleSB(pty_t *pty)
{
@@ -284,7 +287,7 @@ static int read_pty(int minor)
if (value==3) {
send_iac(minor,IAC_WILL, 3); /* GO AHEAD*/
} else if (value==1) {
/* ECHO */
send_iac(minor,IAC_WILL, 1); /* ECHO */
} else {
send_iac(minor,IAC_WONT,value);
};