nhyatt/putty-source
1
0
Fork 0
mirror of https://git.tartarus.org/simon/putty.git synced 2025-07-14 09:37:34 -05:00
Code Issues Projects Releases Wiki Activity

Rework special-commands system to add an integer argument.

Browse Source 
In order to list cross-certifiable host keys in the GUI specials menu,
the SSH backend has been inventing new values on the end of the
Telnet_Special enumeration, starting from the value TS_LOCALSTART.
This is inelegant, and also makes it awkward to break up special
handlers (e.g. to dispatch different specials to different SSH
layers), since if all you know about a special is that it's somewhere
in the TS_LOCALSTART+n space, you can't tell what _general kind_ of
thing it is. Also, if I ever need another open-ended set of specials
in future, I'll have to remember which TS_LOCALSTART+n codes are in
which set.

So here's a revamp that causes every special to take an extra integer
argument. For all previously numbered specials, this argument is
passed as zero and ignored, but there's a new main special code for
SSH host key cross-certification, in which the integer argument is an
index into the backend's list of available keys. TS_LOCALSTART is now
a thing of the past: if I need any other open-ended sets of specials
in future, I can add a new top-level code with a nicely separated
space of arguments.

While I'm at it, I've removed the legacy misnomer 'Telnet_Special'
from the code completely; the enum is now SessionSpecialCode, the
struct containing full details of a menu entry is SessionSpecial, and
the enum values now start SS_ rather than TS_.
This commit is contained in:
Simon Tatham
2018-09-24 09:35:52 +01:00
parent 26f7a2ac72
commit f4fbaa1bd9
19 changed files with 224 additions and 194 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
unix/uxpty.c
View File

@ -1159,7 +1159,7 @@ static void pty_size(Backend *be, int width, int height)
/*
* Send special codes.
*/
static void pty_special(Backend *be, Telnet_Special code)
static void pty_special(Backend *be, SessionSpecialCode code, int arg)
{
/* Pty pty = FROMFIELD(be, struct pty_tag, backend); */
/* Do nothing! */
@ -1170,7 +1170,7 @@ static void pty_special(Backend *be, Telnet_Special code)
* Return a list of the special codes that make sense in this
* protocol.
*/
static const struct telnet_special *pty_get_specials(Backend *be)
static const SessionSpecial *pty_get_specials(Backend *be)
{
/* Pty pty = FROMFIELD(be, struct pty_tag, backend); */
/*