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/* $OpenBSD: cmd-copy-buffer.c,v 1.7 2009/11/26 21:37:13 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 <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Copies a session paste buffer to another session.
*/
int cmd_copy_buffer_parse(struct cmd *, int, char **, char **);
int cmd_copy_buffer_exec(struct cmd *, struct cmd_ctx *);
void cmd_copy_buffer_free(struct cmd *);
void cmd_copy_buffer_init(struct cmd *, int);
size_t cmd_copy_buffer_print(struct cmd *, char *, size_t);
struct cmd_copy_buffer_data {
char *dst_session;
char *src_session;
int dst_idx;
int src_idx;
};
const struct cmd_entry cmd_copy_buffer_entry = {
"copy-buffer", "copyb",
"[-a src-index] [-b dst-index] [-s src-session] [-t dst-session]",
0, "",
cmd_copy_buffer_init,
cmd_copy_buffer_parse,
cmd_copy_buffer_exec,
cmd_copy_buffer_free,
cmd_copy_buffer_print
};
/* ARGSUSED */
void
cmd_copy_buffer_init(struct cmd *self, unused int arg)
{
struct cmd_copy_buffer_data *data;
self->data = data = xmalloc(sizeof *data);
data->dst_session = NULL;
data->src_session = NULL;
data->dst_idx = -1;
data->src_idx = -1;
}
int
cmd_copy_buffer_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_copy_buffer_data *data;
const char *errstr;
int n, opt;
self->entry->init(self, KEYC_NONE);
data = self->data;
while ((opt = getopt(argc, argv, "a:b:s:t:")) != -1) {
switch (opt) {
case 'a':
if (data->src_idx == -1) {
n = strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr != NULL) {
xasprintf(cause, "buffer %s", errstr);
goto error;
}
data->src_idx = n;
}
break;
case 'b':
if (data->dst_idx == -1) {
n = strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr != NULL) {
xasprintf(cause, "buffer %s", errstr);
goto error;
}
data->dst_idx = n;
}
break;
case 's':
if (data->src_session == NULL)
data->src_session = xstrdup(optarg);
break;
case 't':
if (data->dst_session == NULL)
data->dst_session = xstrdup(optarg);
break;
default:
goto usage;
}
}
argc -= optind;
argv += optind;
return (0);
usage:
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
error:
self->entry->free(self);
return (-1);
}
int
cmd_copy_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct cmd_copy_buffer_data *data = self->data;
struct paste_buffer *pb;
struct paste_stack *dst_ps, *src_ps;
u_char *pdata;
struct session *dst_session, *src_session;
u_int limit;
if ((dst_session = cmd_find_session(ctx, data->dst_session)) == NULL ||
(src_session = cmd_find_session(ctx, data->src_session)) == NULL)
return (-1);
dst_ps = &dst_session->buffers;
src_ps = &src_session->buffers;
if (data->src_idx == -1) {
if ((pb = paste_get_top(src_ps)) == NULL) {
ctx->error(ctx, "no buffers");
return (-1);
}
} else {
if ((pb = paste_get_index(src_ps, data->src_idx)) == NULL) {
ctx->error(ctx, "no buffer %d", data->src_idx);
return (-1);
}
}
limit = options_get_number(&dst_session->options, "buffer-limit");
pdata = xmalloc(pb->size);
memcpy(pdata, pb->data, pb->size);
if (data->dst_idx == -1)
paste_add(dst_ps, pdata, pb->size, limit);
else if (paste_replace(dst_ps, data->dst_idx, pdata, pb->size) != 0) {
ctx->error(ctx, "no buffer %d", data->dst_idx);
xfree(pdata);
return (-1);
}
return (0);
}
void
cmd_copy_buffer_free(struct cmd *self)
{
struct cmd_copy_buffer_data *data = self->data;
if (data->dst_session != NULL)
xfree(data->dst_session);
if (data->src_session != NULL)
xfree(data->src_session);
xfree(data);
}
size_t
cmd_copy_buffer_print(struct cmd *self, char *buf, size_t len)
{
struct cmd_copy_buffer_data *data = self->data;
size_t off = 0;
off += xsnprintf(buf, len, "%s", self->entry->name);
if (data == NULL)
return (off);
if (off < len && data->src_idx != -1) {
off += xsnprintf(buf + off, len - off, " -a %d",
data->src_idx);
}
if (off < len && data->dst_idx != -1) {
off += xsnprintf(buf + off, len - off, " -b %d",
data->dst_idx);
}
if (off < len && data->src_session != NULL) {
off += cmd_prarg(buf + off, len - off, " -s ",
data->src_session);
}
if (off < len && data->dst_session != NULL) {
off += cmd_prarg(buf + off, len - off, " -t ",
data->dst_session);
}
return (off);
}
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