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Annotation of src/usr.bin/tmux/cmd-attach-session.c, Revision 1.1

1.1     ! nicm        1: /* $OpenBSD$ */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
        !             5:  *
        !             6:  * Permission to use, copy, modify, and distribute this software for any
        !             7:  * purpose with or without fee is hereby granted, provided that the above
        !             8:  * copyright notice and this permission notice appear in all copies.
        !             9:  *
        !            10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
        !            15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
        !            16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            17:  */
        !            18:
        !            19: #include <sys/types.h>
        !            20:
        !            21: #include "tmux.h"
        !            22:
        !            23: /*
        !            24:  * Attach existing session to the current terminal.
        !            25:  */
        !            26:
        !            27: int    cmd_attach_session_exec(struct cmd *, struct cmd_ctx *);
        !            28:
        !            29: const struct cmd_entry cmd_attach_session_entry = {
        !            30:        "attach-session", "attach",
        !            31:        "[-d] " CMD_TARGET_SESSION_USAGE,
        !            32:                CMD_DFLAG|CMD_CANTNEST|CMD_STARTSERVER,
        !            33:        cmd_target_init,
        !            34:        cmd_target_parse,
        !            35:        cmd_attach_session_exec,
        !            36:        cmd_target_send,
        !            37:        cmd_target_recv,
        !            38:        cmd_target_free,
        !            39:        cmd_target_print
        !            40: };
        !            41:
        !            42: int
        !            43: cmd_attach_session_exec(struct cmd *self, struct cmd_ctx *ctx)
        !            44: {
        !            45:        struct cmd_target_data  *data = self->data;
        !            46:        struct session          *s;
        !            47:        char                    *cause;
        !            48:
        !            49:        if (ctx->curclient != NULL)
        !            50:                return (0);
        !            51:
        !            52:        if (ARRAY_LENGTH(&sessions) == 0) {
        !            53:                ctx->error(ctx, "no sessions");
        !            54:                return (-1);
        !            55:        }
        !            56:        if ((s = cmd_find_session(ctx, data->target)) == NULL)
        !            57:                return (-1);
        !            58:
        !            59:        if (!(ctx->cmdclient->flags & CLIENT_TERMINAL)) {
        !            60:                ctx->error(ctx, "not a terminal");
        !            61:                return (-1);
        !            62:        }
        !            63:
        !            64:        if (tty_open(&ctx->cmdclient->tty, &cause) != 0) {
        !            65:                ctx->error(ctx, "terminal open failed: %s", cause);
        !            66:                xfree(cause);
        !            67:                return (-1);
        !            68:        }
        !            69:
        !            70:        if (data->flags & CMD_DFLAG)
        !            71:                server_write_session(s, MSG_DETACH, NULL, 0);
        !            72:        ctx->cmdclient->session = s;
        !            73:
        !            74:        server_write_client(ctx->cmdclient, MSG_READY, NULL, 0);
        !            75:        recalculate_sizes();
        !            76:        server_redraw_client(ctx->cmdclient);
        !            77:
        !            78:        return (1);
        !            79: }
        !            80: