Import tmux, a terminal multiplexor allowing (among other things) a single

terminal to be switched between several different windows and programs
displayed on one terminal be detached from one terminal and moved to another.

ok deraadt pirofti

1 files changed, 248 insertions, 0 deletions

diff --git a/cmd-new-session.c b/cmd-new-session.c
new file mode 100644
index 00000000..7c2c664b
--- /dev/null
+++ b/cmd-new-session.c
@@ -0,0 +1,248 @@
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include "tmux.h"
+
+/*
+ * Create a new session and attach to the current terminal unless -d is given.
+ */
+
+int	cmd_new_session_parse(struct cmd *, int, char **, char **);
+int	cmd_new_session_exec(struct cmd *, struct cmd_ctx *);
+void	cmd_new_session_send(struct cmd *, struct buffer *);
+void	cmd_new_session_recv(struct cmd *, struct buffer *);
+void	cmd_new_session_free(struct cmd *);
+void	cmd_new_session_init(struct cmd *, int);
+size_t	cmd_new_session_print(struct cmd *, char *, size_t);
+
+struct cmd_new_session_data {
+	char	*newname;
+	char	*winname;
+	char	*cmd;
+	int	 flag_detached;
+};
+
+const struct cmd_entry cmd_new_session_entry = {
+	"new-session", "new",
+	"[-d] [-n window-name] [-s session-name] [command]",
+	CMD_STARTSERVER|CMD_CANTNEST,
+	cmd_new_session_init,
+	cmd_new_session_parse,
+	cmd_new_session_exec,
+	cmd_new_session_send,
+	cmd_new_session_recv,
+	cmd_new_session_free,
+	cmd_new_session_print
+};
+
+void
+cmd_new_session_init(struct cmd *self, unused int arg)
+{
+	struct cmd_new_session_data	 *data;
+
+	self->data = data = xmalloc(sizeof *data);
+	data->flag_detached = 0;
+	data->newname = NULL;
+	data->winname = NULL;
+	data->cmd = NULL;
+}
+
+int
+cmd_new_session_parse(struct cmd *self, int argc, char **argv, char **cause)
+{
+	struct cmd_new_session_data	*data;
+	int				 opt;
+
+	self->entry->init(self, 0);
+	data = self->data;
+
+	while ((opt = getopt(argc, argv, "ds:n:")) != -1) {
+		switch (opt) {
+		case 'd':
+			data->flag_detached = 1;
+			break;
+		case 's':
+			if (data->newname == NULL)
+				data->newname = xstrdup(optarg);
+			break;
+		case 'n':
+			if (data->winname == NULL)
+				data->winname = xstrdup(optarg);
+			break;
+		default:
+			goto usage;
+		}
+	}
+	argc -= optind;
+	argv += optind;
+	if (argc != 0 && argc != 1)
+		goto usage;
+
+	if (argc == 1)
+		data->cmd = xstrdup(argv[0]);
+
+	return (0);
+
+usage:
+	xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
+
+	self->entry->free(self);
+	return (-1);
+}
+
+int
+cmd_new_session_exec(struct cmd *self, struct cmd_ctx *ctx)
+{
+	struct cmd_new_session_data	*data = self->data;
+	struct client			*c = ctx->cmdclient;
+	struct session			*s;
+	char				*cmd, *cwd, *cause;
+	u_int				 sx, sy;
+
+	if (ctx->curclient != NULL)
+		return (0);
+
+	if (!data->flag_detached) {
+		if (c == NULL) {
+			ctx->error(ctx, "no client to attach to");
+			return (-1);
+		}
+		if (!(c->flags & CLIENT_TERMINAL)) {
+			ctx->error(ctx, "not a terminal");
+			return (-1);
+		}
+	}
+
+	if (data->newname != NULL && session_find(data->newname) != NULL) {
+		ctx->error(ctx, "duplicate session: %s", data->newname);
+		return (-1);
+	}
+
+	cmd = data->cmd;
+	if (cmd == NULL)
+		cmd = options_get_string(&global_options, "default-command");
+	if (c == NULL || c->cwd == NULL)
+		cwd = options_get_string(&global_options, "default-path");
+	else
+		cwd = c->cwd;
+
+	sx = 80;
+	sy = 25;
+	if (!data->flag_detached) {
+		sx = c->tty.sx;
+		sy = c->tty.sy;
+	}
+
+	if (options_get_number(&global_options, "status")) {
+		if (sy == 0)
+			sy = 1;
+		else
+			sy--;
+	}
+
+	if (!data->flag_detached && tty_open(&c->tty, &cause) != 0) {
+		ctx->error(ctx, "open terminal failed: %s", cause);
+		xfree(cause);
+		return (-1);
+	}
+
+
+	s = session_create(data->newname, cmd, cwd, sx, sy, &cause);
+	if (s == NULL) {
+		ctx->error(ctx, "create session failed: %s", cause);
+		xfree(cause);
+		return (-1);
+	}
+	if (data->winname != NULL) {
+		xfree(s->curw->window->name);
+		s->curw->window->name = xstrdup(data->winname);
+		options_set_number(
+		    &s->curw->window->options, "automatic-rename", 0);
+	}
+
+	if (data->flag_detached) {
+		if (c != NULL)
+			server_write_client(c, MSG_EXIT, NULL, 0);
+	} else {
+		c->session = s;
+		server_write_client(c, MSG_READY, NULL, 0);
+		server_redraw_client(c);
+	}
+	recalculate_sizes();
+
+	return (1);
+}
+
+void
+cmd_new_session_send(struct cmd *self, struct buffer *b)
+{
+	struct cmd_new_session_data	*data = self->data;
+
+	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->newname);
+	cmd_send_string(b, data->winname);
+	cmd_send_string(b, data->cmd);
+}
+
+void
+cmd_new_session_recv(struct cmd *self, struct buffer *b)
+{
+	struct cmd_new_session_data	*data;
+
+	self->data = data = xmalloc(sizeof *data);
+	buffer_read(b, data, sizeof *data);
+	data->newname = cmd_recv_string(b);
+	data->winname = cmd_recv_string(b);
+	data->cmd = cmd_recv_string(b);
+}
+
+void
+cmd_new_session_free(struct cmd *self)
+{
+	struct cmd_new_session_data	*data = self->data;
+
+	if (data->newname != NULL)
+		xfree(data->newname);
+	if (data->winname != NULL)
+		xfree(data->winname);
+	if (data->cmd != NULL)
+		xfree(data->cmd);
+	xfree(data);
+}
+
+size_t
+cmd_new_session_print(struct cmd *self, char *buf, size_t len)
+{
+	struct cmd_new_session_data	*data = self->data;
+	size_t				 off = 0;
+
+	off += xsnprintf(buf, len, "%s", self->entry->name);
+	if (data == NULL)
+		return (off);
+	if (off < len && data->flag_detached)
+		off += xsnprintf(buf + off, len - off, " -d");
+	if (off < len && data->newname != NULL)
+		off += cmd_prarg(buf + off, len - off, " -s ", data->newname);
+	if (off < len && data->winname != NULL)
+		off += cmd_prarg(buf + off, len - off, " -n ", data->winname);
+	if (off < len && data->cmd != NULL)
+		off += cmd_prarg(buf + off, len - off, " ", data->cmd);
+	return (off);
+}