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/* $OpenBSD: cmd-confirm-before.c,v 1.35 2017/05/17 15:20:23 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 <ctype.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Asks for confirmation before executing a command.
*/
static enum cmd_retval cmd_confirm_before_exec(struct cmd *,
struct cmdq_item *);
static int cmd_confirm_before_callback(struct client *, void *,
const char *, int);
static void cmd_confirm_before_free(void *);
const struct cmd_entry cmd_confirm_before_entry = {
.name = "confirm-before",
.alias = "confirm",
.args = { "p:t:", 1, 1 },
.usage = "[-p prompt] " CMD_TARGET_CLIENT_USAGE " command",
.flags = 0,
.exec = cmd_confirm_before_exec
};
struct cmd_confirm_before_data {
char *cmd;
};
static enum cmd_retval
cmd_confirm_before_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = self->args;
struct cmd_confirm_before_data *cdata;
struct client *c;
char *cmd, *copy, *new_prompt, *ptr;
const char *prompt;
if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
return (CMD_RETURN_ERROR);
if ((prompt = args_get(args, 'p')) != NULL)
xasprintf(&new_prompt, "%s ", prompt);
else {
ptr = copy = xstrdup(args->argv[0]);
cmd = strsep(&ptr, " \t");
xasprintf(&new_prompt, "Confirm '%s'? (y/n) ", cmd);
free(copy);
}
cdata = xmalloc(sizeof *cdata);
cdata->cmd = xstrdup(args->argv[0]);
status_prompt_set(c, new_prompt, NULL,
cmd_confirm_before_callback, cmd_confirm_before_free, cdata,
PROMPT_SINGLE);
free(new_prompt);
return (CMD_RETURN_NORMAL);
}
static enum cmd_retval
cmd_confirm_before_error(struct cmdq_item *item, void *data)
{
char *error = data;
cmdq_error(item, "%s", error);
free(error);
return (CMD_RETURN_NORMAL);
}
static int
cmd_confirm_before_callback(struct client *c, void *data, const char *s,
__unused int done)
{
struct cmd_confirm_before_data *cdata = data;
struct cmd_list *cmdlist;
struct cmdq_item *new_item;
char *cause;
if (c->flags & CLIENT_DEAD)
return (0);
if (s == NULL || *s == '\0')
return (0);
if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
return (0);
cmdlist = cmd_string_parse(cdata->cmd, NULL, 0, &cause);
if (cmdlist == NULL) {
if (cause != NULL) {
new_item = cmdq_get_callback(cmd_confirm_before_error,
cause);
} else
new_item = NULL;
} else {
new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
cmd_list_free(cmdlist);
}
if (new_item != NULL)
cmdq_append(c, new_item);
return (0);
}
static void
cmd_confirm_before_free(void *data)
{
struct cmd_confirm_before_data *cdata = data;
free(cdata->cmd);
free(cdata);
}
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