cmd-switch-client.c

   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 <stdlib.h>
  22 #include <string.h>
  23
  24 #include "tmux.h"
  25
  26 /*
  27  * Switch client to a different session.
  28  */
  29
  30 int     cmd_switch_client_parse(struct cmd *, int, char **, char **);
  31 int     cmd_switch_client_exec(struct cmd *, struct cmd_ctx *);
  32 void    cmd_switch_client_free(struct cmd *);
  33 size_t  cmd_switch_client_print(struct cmd *, char *, size_t);
  34
  35 struct cmd_switch_client_data {
  36         char    *name;
  37         char    *target;
  38 };
  39
  40 const struct cmd_entry cmd_switch_client_entry = {
  41         "switch-client", "switchc",
  42         "[-c target-client] [-t target-session]",
  43         0, "",
  44         NULL,
  45         cmd_switch_client_parse,
  46         cmd_switch_client_exec,
  47         cmd_switch_client_free,
  48         cmd_switch_client_print
  49 };
  50
  51 int
  52 cmd_switch_client_parse(struct cmd *self, int argc, char **argv, char **cause)
  53 {
  54         struct cmd_switch_client_data   *data;
  55         int                              opt;
  56
  57         self->data = data = xmalloc(sizeof *data);
  58         data->name = NULL;
  59         data->target = NULL;
  60
  61         while ((opt = getopt(argc, argv, "c:t:")) != -1) {
  62                 switch (opt) {
  63                 case 'c':
  64                         if (data->name == NULL)
  65                                 data->name = xstrdup(optarg);
  66                         break;
  67                 case 't':
  68                         if (data->target == NULL)
  69                                 data->target = xstrdup(optarg);
  70                         break;
  71                 default:
  72                         goto usage;
  73                 }
  74         }
  75         argc -= optind;
  76         argv += optind;
  77         if (argc != 0)
  78                 goto usage;
  79
  80         return (0);
  81
  82 usage:
  83         xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
  84
  85         self->entry->free(self);
  86         return (-1);
  87 }
  88
  89 int
  90 cmd_switch_client_exec(struct cmd *self, struct cmd_ctx *ctx)
  91 {
  92         struct cmd_switch_client_data   *data = self->data;
  93         struct client                   *c;
  94         struct session                  *s;
  95
  96         if (data == NULL)
  97                 return (0);
  98
  99         if ((c = cmd_find_client(ctx, data->name)) == NULL)
 100                 return (-1);
 101         if ((s = cmd_find_session(ctx, data->target)) == NULL)
 102                 return (-1);
 103
 104         c->session = s;
 105
 106         recalculate_sizes();
 107         server_redraw_client(c);
 108
 109         return (0);
 110 }
 111
 112 void
 113 cmd_switch_client_free(struct cmd *self)
 114 {
 115         struct cmd_switch_client_data   *data = self->data;
 116
 117         if (data->name != NULL)
 118                 xfree(data->name);
 119         if (data->target != NULL)
 120                 xfree(data->target);
 121         xfree(data);
 122 }
 123
 124 size_t
 125 cmd_switch_client_print(struct cmd *self, char *buf, size_t len)
 126 {
 127         struct cmd_switch_client_data   *data = self->data;
 128         size_t                           off = 0;
 129
 130         off += xsnprintf(buf, len, "%s", self->entry->name);
 131         if (data == NULL)
 132                 return (off);
 133         if (off < len && data->name != NULL)
 134                 off += cmd_prarg(buf + off, len - off, " -c ", data->name);
 135         if (off < len && data->target != NULL)
 136                 off += cmd_prarg(buf + off, len - off, " -t ", data->target);
 137         return (off);
 138 }