shouldn't have been committed to OPENSSH_PORTABLE_DIST branch

[gssapi-openssh.git] / openssh / ttymodes.c

diff --git a/openssh/ttymodes.c b/openssh/ttymodes.c
index c32e213a4399c67cb2e2089ba0a2d262887cbc9e..cf4c7d5c6c83e1130e202e52e16f7924b7bac28a 100644 (file)
--- a/openssh/ttymodes.c
+++ b/openssh/ttymodes.c
@@ -240,6 +240,32 @@ 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
@@ -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) \