Make all messages sent between the client and server fixed size.

This is the first of two changes to make the protocol more resilient and less
sensitive to other changes in the code, particularly with commands. The client
now packs argv into a buffer and sends it to the server for parsing, rather
than doing it itself and sending the parsed command data.

As a side-effect this also removes a lot of now-unused command marshalling
code.

Mixing a server without this change and a client with or vice versa will cause
tmux to hang or crash, please ensure that tmux is entirely killed before
upgrading.

1 files changed, 0 insertions, 25 deletions

diff --git a/cmd-split-window.c b/cmd-split-window.c
index f7519cb7..b483cdd4 100644
--- a/cmd-split-window.c
+++ b/cmd-split-window.c
@@ -29,8 +29,6 @@
 
 int	cmd_split_window_parse(struct cmd *, int, char **, char **);
 int	cmd_split_window_exec(struct cmd *, struct cmd_ctx *);
-void	cmd_split_window_send(struct cmd *, struct buffer *);
-void	cmd_split_window_recv(struct cmd *, struct buffer *);
 void	cmd_split_window_free(struct cmd *);
 void	cmd_split_window_init(struct cmd *, int);
 size_t	cmd_split_window_print(struct cmd *, char *, size_t);
@@ -51,8 +49,6 @@ const struct cmd_entry cmd_split_window_entry = {
 	cmd_split_window_init,
 	cmd_split_window_parse,
 	cmd_split_window_exec,
-	cmd_split_window_send,
-	cmd_split_window_recv,
 	cmd_split_window_free,
 	cmd_split_window_print
 };
@@ -212,27 +208,6 @@ error:
 }
 
 void
-cmd_split_window_send(struct cmd *self, struct buffer *b)
-{
-	struct cmd_split_window_data	*data = self->data;
-
-	buffer_write(b, data, sizeof *data);
-	cmd_send_string(b, data->target);
-	cmd_send_string(b, data->cmd);
-}
-
-void
-cmd_split_window_recv(struct cmd *self, struct buffer *b)
-{
-	struct cmd_split_window_data	*data;
-
-	self->data = data = xmalloc(sizeof *data);
-	buffer_read(b, data, sizeof *data);
-	data->target = cmd_recv_string(b);
-	data->cmd = cmd_recv_string(b);
-}
-
-void
 cmd_split_window_free(struct cmd *self)
 {
 	struct cmd_split_window_data	*data = self->data;