1/* $OpenBSD$ */
2
3/*
4 * Copyright (c) 2009 Tiago Cunha <[email protected]>
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#include <sys/stat.h>
21
22#include <errno.h>
23#include <fcntl.h>
24#include <stdlib.h>
25#include <string.h>
26#include <unistd.h>
27
28#include "tmux.h"
29
30/*
31 * Saves a paste buffer to a file.
32 */
33
34static enum cmd_retval cmd_save_buffer_exec(struct cmd *, struct cmdq_item *);
35
36const struct cmd_entry cmd_save_buffer_entry = {
37 .name = "save-buffer",
38 .alias = "saveb",
39
40 .args = { "ab:", 1, 1 },
41 .usage = "[-a] " CMD_BUFFER_USAGE " path",
42
43 .flags = CMD_AFTERHOOK,
44 .exec = cmd_save_buffer_exec
45};
46
47const struct cmd_entry cmd_show_buffer_entry = {
48 .name = "show-buffer",
49 .alias = "showb",
50
51 .args = { "b:", 0, 0 },
52 .usage = CMD_BUFFER_USAGE,
53
54 .flags = CMD_AFTERHOOK,
55 .exec = cmd_save_buffer_exec
56};
57
58static void
59cmd_save_buffer_done(__unused struct client *c, const char *path, int error,
60 __unused int closed, __unused struct evbuffer *buffer, void *data)
61{
62 struct cmdq_item *item = data;
63
64 if (!closed)
65 return;
66
67 if (error != 0)
68 cmdq_error(item, "%s: %s", path, strerror(error));
69 cmdq_continue(item);
70}
71
72static enum cmd_retval
73cmd_save_buffer_exec(struct cmd *self, struct cmdq_item *item)
74{
75 struct args *args = self->args;
76 struct client *c = cmd_find_client(item, NULL, 1);
77 struct session *s = item->target.s;
78 struct winlink *wl = item->target.wl;
79 struct window_pane *wp = item->target.wp;
80 struct paste_buffer *pb;
81 int flags;
82 const char *bufname = args_get(args, 'b'), *bufdata;
83 size_t bufsize;
84 char *path;
85
86 if (bufname == NULL) {
87 if ((pb = paste_get_top(NULL)) == NULL) {
88 cmdq_error(item, "no buffers");
89 return (CMD_RETURN_ERROR);
90 }
91 } else {
92 pb = paste_get_name(bufname);
93 if (pb == NULL) {
94 cmdq_error(item, "no buffer %s", bufname);
95 return (CMD_RETURN_ERROR);
96 }
97 }
98 bufdata = paste_buffer_data(pb, &bufsize);
99
100 if (self->entry == &cmd_show_buffer_entry)
101 path = xstrdup("-");
102 else
103 path = format_single(item, args->argv[0], c, s, wl, wp);
104 if (args_has(self->args, 'a'))
105 flags = O_APPEND;
106 else
107 flags = 0;
108 file_write(item->client, path, flags, bufdata, bufsize,
109 cmd_save_buffer_done, item);
110 free(path);
111
112 return (CMD_RETURN_WAIT);
113}
114