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/* $OpenBSD: cmd-load-buffer.c,v 1.65 2022/06/09 09:12:55 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 <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "tmux.h"
/*
* Loads a paste buffer from a file.
*/
static enum cmd_retval cmd_load_buffer_exec(struct cmd *, struct cmdq_item *);
const struct cmd_entry cmd_load_buffer_entry = {
.name = "load-buffer",
.alias = "loadb",
.args = { "b:t:w", 1, 1, NULL },
.usage = CMD_BUFFER_USAGE " " CMD_TARGET_CLIENT_USAGE " path",
.flags = CMD_AFTERHOOK|CMD_CLIENT_TFLAG|CMD_CLIENT_CANFAIL,
.exec = cmd_load_buffer_exec
};
struct cmd_load_buffer_data {
struct client *client;
struct cmdq_item *item;
char *name;
};
static void
cmd_load_buffer_done(__unused struct client *c, const char *path, int error,
int closed, struct evbuffer *buffer, void *data)
{
struct cmd_load_buffer_data *cdata = data;
struct client *tc = cdata->client;
struct cmdq_item *item = cdata->item;
void *bdata = EVBUFFER_DATA(buffer);
size_t bsize = EVBUFFER_LENGTH(buffer);
void *copy;
char *cause;
if (!closed)
return;
if (error != 0)
cmdq_error(item, "%s: %s", path, strerror(error));
else if (bsize != 0) {
copy = xmalloc(bsize);
memcpy(copy, bdata, bsize);
if (paste_set(copy, bsize, cdata->name, &cause) != 0) {
cmdq_error(item, "%s", cause);
free(cause);
free(copy);
} else if (tc != NULL &&
tc->session != NULL &&
(~tc->flags & CLIENT_DEAD))
tty_set_selection(&tc->tty, "", copy, bsize);
if (tc != NULL)
server_client_unref(tc);
}
cmdq_continue(item);
free(cdata->name);
free(cdata);
}
static enum cmd_retval
cmd_load_buffer_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = cmd_get_args(self);
struct client *tc = cmdq_get_target_client(item);
struct cmd_load_buffer_data *cdata;
const char *bufname = args_get(args, 'b');
char *path;
cdata = xcalloc(1, sizeof *cdata);
cdata->item = item;
if (bufname != NULL)
cdata->name = xstrdup(bufname);
if (args_has(args, 'w') && tc != NULL) {
cdata->client = tc;
cdata->client->references++;
}
path = format_single_from_target(item, args_string(args, 0));
file_read(cmdq_get_client(item), path, cmd_load_buffer_done, cdata);
free(path);
return (CMD_RETURN_WAIT);
}
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