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/* $OpenBSD: cmd-save-buffer.c,v 1.57 2025/10/28 07:32:26 nicm Exp $ */
/*
* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include
<sys/types.h>
#include
<sys/stat.h>
#include
<errno.h>
#include
<fcntl.h>
#include
<stdlib.h>
#include
<string.h>
#include
<unistd.h>
#include
"tmux.h"
/*
* Saves a paste buffer to a file.
*/
static
enum
cmd_retval
cmd_save_buffer_exec
(
struct
cmd
*
,
struct
cmdq_item
*
);
const
struct
cmd_entry
cmd_save_buffer_entry
=
{
.
name
=
"save-buffer"
,
.
alias
=
"saveb"
,
.
args
=
{
"ab:"
,
1
,
1
,
NULL
},
.
usage
=
"[-a] "
CMD_BUFFER_USAGE
" path"
,
.
flags
=
CMD_AFTERHOOK
,
.
exec
=
cmd_save_buffer_exec
};
const
struct
cmd_entry
cmd_show_buffer_entry
=
{
.
name
=
"show-buffer"
,
.
alias
=
"showb"
,
.
args
=
{
"b:"
,
0
,
0
,
NULL
},
.
usage
=
CMD_BUFFER_USAGE
,
.
flags
=
CMD_AFTERHOOK
,
.
exec
=
cmd_save_buffer_exec
};
static
void
cmd_save_buffer_done
(
__unused
struct
client
*
c
,
const
char
*
path
,
int
error
,
__unused
int
closed
,
__unused
struct
evbuffer
*
buffer
,
void
*
data
)
{
struct
cmdq_item
*
item
=
data
;
if
(!
closed
)
return
;
if
(
error
!=
0
)
cmdq_error
(
item
,
"%s: %s"
,
strerror
(
error
),
path
);
cmdq_continue
(
item
);
}
static
enum
cmd_retval
cmd_save_buffer_exec
(
struct
cmd
*
self
,
struct
cmdq_item
*
item
)
{
struct
args
*
args
=
cmd_get_args
(
self
);
struct
client
*
c
=
cmdq_get_client
(
item
);
struct
paste_buffer
*
pb
;
int
flags
;
const
char
*
bufname
=
args_get
(
args
,
'b'
),
*
bufdata
;
size_t
bufsize
;
char
*
path
;
struct
evbuffer
*
evb
;
if
(
bufname
==
NULL
) {
if
((
pb
=
paste_get_top
(
NULL
))
==
NULL
) {
cmdq_error
(
item
,
"no buffers"
);
return
(
CMD_RETURN_ERROR
);
}
}
else
{
pb
=
paste_get_name
(
bufname
);
if
(
pb
==
NULL
) {
cmdq_error
(
item
,
"no buffer %s"
,
bufname
);
return
(
CMD_RETURN_ERROR
);
}
}
bufdata
=
paste_buffer_data
(
pb
,
&
bufsize
);
if
(
cmd_get_entry
(
self
)
==
&
cmd_show_buffer_entry
) {
if
(
c
->
session
!=
NULL
||
(
c
->
flags
&
CLIENT_CONTROL
)) {
evb
=
evbuffer_new
();
if
(
evb
==
NULL
)
fatalx
(
"out of memory"
);
evbuffer_add
(
evb
,
bufdata
,
bufsize
);
cmdq_print_data
(
item
,
evb
);
evbuffer_free
(
evb
);
return
(
CMD_RETURN_NORMAL
);
}
path
=
xstrdup
(
"-"
);
}
else
path
=
format_single_from_target
(
item
,
args_string
(
args
,
0
));
if
(
args_has
(
args
,
'a'
))
flags
=
O_APPEND
;
else
flags
=
O_TRUNC
;
file_write
(
cmdq_get_client
(
item
),
path
,
flags
,
bufdata
,
bufsize
,
cmd_save_buffer_done
,
item
);
free
(
path
);
return
(
CMD_RETURN_WAIT
);
}
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