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34a82e7629
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.
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <unistd.h>
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#include "tmux.h"
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/*
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* Respawn a window (restart the command). Kill existing if -k given.
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*/
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int cmd_respawn_window_exec(struct cmd *, struct cmd_ctx *);
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const struct cmd_entry cmd_respawn_window_entry = {
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"respawn-window", "respawnw",
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"[-k] " CMD_TARGET_WINDOW_USAGE " [command]",
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CMD_ARG01, CMD_CHFLAG('k'),
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cmd_target_init,
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cmd_target_parse,
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cmd_respawn_window_exec,
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cmd_target_free,
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cmd_target_print
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};
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int
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cmd_respawn_window_exec(struct cmd *self, struct cmd_ctx *ctx)
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{
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struct cmd_target_data *data = self->data;
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struct winlink *wl;
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struct window *w;
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struct window_pane *wp;
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struct session *s;
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const char **env;
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char *cause;
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if ((wl = cmd_find_window(ctx, data->target, &s)) == NULL)
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return (-1);
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w = wl->window;
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if (!(data->chflags & CMD_CHFLAG('k'))) {
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TAILQ_FOREACH(wp, &w->panes, entry) {
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if (wp->fd == -1)
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continue;
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ctx->error(ctx,
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"window still active: %s:%d", s->name, wl->idx);
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return (-1);
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}
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}
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env = server_fill_environ(s);
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wp = TAILQ_FIRST(&w->panes);
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TAILQ_REMOVE(&w->panes, wp, entry);
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layout_free(w);
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window_destroy_panes(w);
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TAILQ_INSERT_HEAD(&w->panes, wp, entry);
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window_pane_resize(wp, w->sx, w->sy);
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if (window_pane_spawn(wp, data->arg, NULL, env, &cause) != 0) {
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ctx->error(ctx, "respawn window failed: %s", cause);
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xfree(cause);
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return (-1);
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}
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layout_init(w);
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screen_reinit(&wp->base);
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window_set_active_pane(w, wp);
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recalculate_sizes();
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server_redraw_window(w);
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return (0);
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}
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