diff options
| -rw-r--r-- | pttbbs/mbbsd/telnet.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/pttbbs/mbbsd/telnet.c b/pttbbs/mbbsd/telnet.c index 933f9f3c..22ad6234 100644 --- a/pttbbs/mbbsd/telnet.c +++ b/pttbbs/mbbsd/telnet.c @@ -53,11 +53,18 @@ dbcs_detect_evil_repeats(unsigned char *buf, ssize_t l) // XXX l=2 is dangerous. hope we are not in telnet IAC state... // BS: \b // BS2: \x7f + // DEL2: Ctrl('D') (KKMan3 also treats Ctrl('D') as DBCS DEL) if (buf[0] != buf[1]) return l; + // Note: BS/DEL behavior on different clients: + // screen/telnet:BS=0x7F, DEL=^[3~ + // PCMan2004: BS=0x7F, DEL=^[3~ + // KKMan3: BS=0x1b, DEL=0x7F + // WinXP telnet: BS=0x1b, DEL=0x7F if (buf[0] == '\b' || - buf[0] == '\x1f') + buf[0] == '\x7f' || + buf[0] == Ctrl('D')) return l-1; } else if (l == 6) |