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cmd-save-buffer.c
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120 lines (101 loc) · 3.07 KB
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/* $OpenBSD$ */
/*
* 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);
}