diff options
Diffstat (limited to 'crypto/openssh/ttymodes.c')
| -rw-r--r-- | crypto/openssh/ttymodes.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/crypto/openssh/ttymodes.c b/crypto/openssh/ttymodes.c index c32e213..cf4c7d5 100644 --- a/crypto/openssh/ttymodes.c +++ b/crypto/openssh/ttymodes.c @@ -241,6 +241,32 @@ baud_to_speed(int baud) } /* + * Encode a special character into SSH line format. + */ +static u_int +special_char_encode(cc_t c) +{ +#ifdef _POSIX_VDISABLE + if (c == _POSIX_VDISABLE) + return 255; +#endif /* _POSIX_VDISABLE */ + return c; +} + +/* + * Decode a special character from SSH line format. + */ +static cc_t +special_char_decode(u_int c) +{ +#ifdef _POSIX_VDISABLE + if (c == 255) + return _POSIX_VDISABLE; +#endif /* _POSIX_VDISABLE */ + return c; +} + +/* * Encodes terminal modes for the terminal referenced by fd * or tiop in a portable manner, and appends the modes to a packet * being constructed. @@ -287,7 +313,7 @@ tty_make_modes(int fd, struct termios *tiop) #define TTYCHAR(NAME, OP) \ debug3("tty_make_modes: %d %d", OP, tio.c_cc[NAME]); \ buffer_put_char(&buf, OP); \ - put_arg(&buf, tio.c_cc[NAME]); + put_arg(&buf, special_char_encode(tio.c_cc[NAME])); #define TTYMODE(NAME, FIELD, OP) \ debug3("tty_make_modes: %d %d", OP, ((tio.FIELD & NAME) != 0)); \ @@ -375,7 +401,7 @@ tty_parse_modes(int fd, int *n_bytes_ptr) #define TTYCHAR(NAME, OP) \ case OP: \ n_bytes += arg_size; \ - tio.c_cc[NAME] = get_arg(); \ + tio.c_cc[NAME] = special_char_decode(get_arg()); \ debug3("tty_parse_modes: %d %d", OP, tio.c_cc[NAME]); \ break; #define TTYMODE(NAME, FIELD, OP) \ |
