cmd-list-buffers.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 <string.h>
  22 #include <vis.h>
  23
  24 #include "tmux.h"
  25
  26 /*
  27  * List paste buffers.
  28  */
  29
  30 int     cmd_list_buffers_exec(struct cmd *, struct cmd_ctx *);
  31
  32 const struct cmd_entry cmd_list_buffers_entry = {
  33         "list-buffers", "lsb",
  34         CMD_TARGET_SESSION_USAGE,
  35         0, "",
  36         cmd_target_init,
  37         cmd_target_parse,
  38         cmd_list_buffers_exec,
  39         cmd_target_free,
  40         cmd_target_print
  41 };
  42
  43 int
  44 cmd_list_buffers_exec(struct cmd *self, struct cmd_ctx *ctx)
  45 {
  46         struct cmd_target_data  *data = self->data;
  47         struct session          *s;
  48         struct paste_buffer     *pb;
  49         u_int                    idx;
  50         char                     tmp[51 * 4 + 1];
  51         size_t                   size, len;
  52
  53         if ((s = cmd_find_session(ctx, data->target)) == NULL)
  54                 return (-1);
  55
  56         idx = 0;
  57         while ((pb = paste_walk_stack(&s->buffers, &idx)) != NULL) {
  58                 size = pb->size;
  59
  60                 /* Translate the first 50 characters. */
  61                 len = size;
  62                 if (len > 50)
  63                         len = 50;
  64                 strvisx(tmp, pb->data, len, VIS_OCTAL|VIS_TAB|VIS_NL);
  65
  66                 /*
  67                  * If the first 50 characters were encoded as a longer string,
  68                  * or there is definitely more data, add "...".
  69                  */
  70                 if (size > 50 || strlen(tmp) > 50) {
  71                         tmp[50 - 3] = '\0';
  72                         strlcat(tmp, "...", sizeof tmp);
  73                 }
  74
  75                 ctx->print(ctx, "%u: %zu bytes: \"%s\"", idx - 1, size, tmp);
  76         }
  77
  78         return (0);
  79 }