diff options
| author |   markus <markus@openbsd.org> | 2001-09-17 21:04:01 +0000 |
|---|---|---|
| committer | markus <markus@openbsd.org> | 2001-09-17 21:04:01 +0000 |
| commit | 93c4458b633f2dbcd69dbee0c34ec15ab53a27c1 (patch) | |
| tree | f683a8e08065d04d0be5e8a5e493a71b177c7ec8 /usr.bin/ssh/channels.c | |
| parent | try to fix agent-forwarding-backconnection-bug, as seen on HPUX, for example; (diff) | |
| download | wireguard-openbsd-93c4458b633f2dbcd69dbee0c34ec15ab53a27c1.tar.xz wireguard-openbsd-93c4458b633f2dbcd69dbee0c34ec15ab53a27c1.zip | |
don't send fake dummy packets on CR (\r)
bugreport from yyua@cs.sfu.ca via solar@@openwall.com
Diffstat (limited to 'usr.bin/ssh/channels.c')
| -rw-r--r-- | usr.bin/ssh/channels.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/usr.bin/ssh/channels.c b/usr.bin/ssh/channels.c index 5c75f556a4f..82cf8fe077b 100644 --- a/usr.bin/ssh/channels.c +++ b/usr.bin/ssh/channels.c @@ -39,7 +39,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: channels.c,v 1.133 2001/09/17 20:52:47 markus Exp $"); +RCSID("$OpenBSD: channels.c,v 1.134 2001/09/17 21:04:01 markus Exp $"); #include "ssh.h" #include "ssh1.h" @@ -1292,14 +1292,17 @@ static int channel_handle_wfd(Channel *c, fd_set * readset, fd_set * writeset) { struct termios tio; + u_char *data; + u_int dlen; int len; /* Send buffered output data to the socket. */ if (c->wfd != -1 && FD_ISSET(c->wfd, writeset) && buffer_len(&c->output) > 0) { - len = write(c->wfd, buffer_ptr(&c->output), - buffer_len(&c->output)); + data = buffer_ptr(&c->output); + dlen = buffer_len(&c->output); + len = write(c->wfd, data, dlen); if (len < 0 && (errno == EINTR || errno == EAGAIN)) return 1; if (len <= 0) { @@ -1316,7 +1319,7 @@ channel_handle_wfd(Channel *c, fd_set * readset, fd_set * writeset) } return -1; } - if (compat20 && c->isatty) { + if (compat20 && c->isatty && dlen >= 1 && data[0] != '\r') { if (tcgetattr(c->wfd, &tio) == 0 && !(tio.c_lflag & ECHO) && (tio.c_lflag & ICANON)) { /* |