Patch from Fillod Stephane:

* While I'm at it, there's also a "telnetd.patch" which maps CRLF to CR,
  like netkit-telnet does, required by the loosy Windows telnet clients.


git-svn-id: svn://busybox.net/trunk/busybox@8128 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 10 insertions, 1 deletions

diff --git a/networking/telnetd.c b/networking/telnetd.c
index 9a60a9a3c..3d5e8d100 100644
--- a/networking/telnetd.c
+++ b/networking/telnetd.c
@@ -1,4 +1,4 @@
-/* $Id: telnetd.c,v 1.8 2003/09/12 11:27:15 bug1 Exp $
+/* $Id: telnetd.c,v 1.9 2003/12/19 11:30:13 andersen Exp $
  *
  * Simple telnet server
  * Bjorn Wesen, Axis Communications AB (bjornw@axis.com)
@@ -116,6 +116,8 @@ static struct tsession *sessions;
    FIXME - if we mean to send 0xFF to the terminal then it will be escaped,
    what is the escape character?  We aren't handling that situation here.
 
+   CR-LF ->'s CR mapping is also done here, for convenience
+
   */
 static char *
 remove_iacs(struct tsession *ts, int *pnum_totty) {
@@ -128,7 +130,14 @@ remove_iacs(struct tsession *ts, int *pnum_totty) {
 
         while (ptr < end) {
                 if (*ptr != IAC) {
+                        int c = *ptr;
                         *totty++ = *ptr++;
+                        /* We now map \r\n ==> \r for pragmatic reasons.
+                         * Many client implementations send \r\n when
+                         * the user hits the CarriageReturn key.
+                         */
+                        if (c == '\r' && (*ptr == '\n' || *ptr == 0) && ptr < end)
+                                ptr++;
                 }
                 else {
                         if ((ptr+2) < end) {