cmd-has-session.c

   1 /* $Id: cmd-has-session.c,v 1.12 2009-01-19 18:23:40 nicm Exp $ */
   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  * Cause client to report an error and exit with 1 if session doesn't exist.
  25  */
  26
  27 int     cmd_has_session_exec(struct cmd *, struct cmd_ctx *);
  28
  29 const struct cmd_entry cmd_has_session_entry = {
  30         "has-session", "has",
  31         CMD_TARGET_SESSION_USAGE,
  32         0,
  33         cmd_target_init,
  34         cmd_target_parse,
  35         cmd_has_session_exec,
  36         cmd_target_send,
  37         cmd_target_recv,
  38         cmd_target_free,
  39         cmd_target_print
  40 };
  41
  42 int
  43 cmd_has_session_exec(struct cmd *self, struct cmd_ctx *ctx)
  44 {
  45         struct cmd_target_data  *data = self->data;
  46
  47         if (cmd_find_session(ctx, data->target) == NULL)
  48                 return (-1);
  49
  50         return (0);
  51 }