1 |
|
|
/* $OpenBSD: cmd-confirm-before.c,v 1.35 2017/05/17 15:20:23 nicm Exp $ */ |
2 |
|
|
|
3 |
|
|
/* |
4 |
|
|
* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org> |
5 |
|
|
* |
6 |
|
|
* Permission to use, copy, modify, and distribute this software for any |
7 |
|
|
* purpose with or without fee is hereby granted, provided that the above |
8 |
|
|
* copyright notice and this permission notice appear in all copies. |
9 |
|
|
* |
10 |
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
11 |
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
12 |
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
13 |
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
14 |
|
|
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER |
15 |
|
|
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING |
16 |
|
|
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
17 |
|
|
*/ |
18 |
|
|
|
19 |
|
|
#include <sys/types.h> |
20 |
|
|
|
21 |
|
|
#include <ctype.h> |
22 |
|
|
#include <stdlib.h> |
23 |
|
|
#include <string.h> |
24 |
|
|
|
25 |
|
|
#include "tmux.h" |
26 |
|
|
|
27 |
|
|
/* |
28 |
|
|
* Asks for confirmation before executing a command. |
29 |
|
|
*/ |
30 |
|
|
|
31 |
|
|
static enum cmd_retval cmd_confirm_before_exec(struct cmd *, |
32 |
|
|
struct cmdq_item *); |
33 |
|
|
|
34 |
|
|
static int cmd_confirm_before_callback(struct client *, void *, |
35 |
|
|
const char *, int); |
36 |
|
|
static void cmd_confirm_before_free(void *); |
37 |
|
|
|
38 |
|
|
const struct cmd_entry cmd_confirm_before_entry = { |
39 |
|
|
.name = "confirm-before", |
40 |
|
|
.alias = "confirm", |
41 |
|
|
|
42 |
|
|
.args = { "p:t:", 1, 1 }, |
43 |
|
|
.usage = "[-p prompt] " CMD_TARGET_CLIENT_USAGE " command", |
44 |
|
|
|
45 |
|
|
.flags = 0, |
46 |
|
|
.exec = cmd_confirm_before_exec |
47 |
|
|
}; |
48 |
|
|
|
49 |
|
|
struct cmd_confirm_before_data { |
50 |
|
|
char *cmd; |
51 |
|
|
}; |
52 |
|
|
|
53 |
|
|
static enum cmd_retval |
54 |
|
|
cmd_confirm_before_exec(struct cmd *self, struct cmdq_item *item) |
55 |
|
|
{ |
56 |
|
|
struct args *args = self->args; |
57 |
|
|
struct cmd_confirm_before_data *cdata; |
58 |
|
|
struct client *c; |
59 |
|
|
char *cmd, *copy, *new_prompt, *ptr; |
60 |
|
|
const char *prompt; |
61 |
|
|
|
62 |
|
|
if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL) |
63 |
|
|
return (CMD_RETURN_ERROR); |
64 |
|
|
|
65 |
|
|
if ((prompt = args_get(args, 'p')) != NULL) |
66 |
|
|
xasprintf(&new_prompt, "%s ", prompt); |
67 |
|
|
else { |
68 |
|
|
ptr = copy = xstrdup(args->argv[0]); |
69 |
|
|
cmd = strsep(&ptr, " \t"); |
70 |
|
|
xasprintf(&new_prompt, "Confirm '%s'? (y/n) ", cmd); |
71 |
|
|
free(copy); |
72 |
|
|
} |
73 |
|
|
|
74 |
|
|
cdata = xmalloc(sizeof *cdata); |
75 |
|
|
cdata->cmd = xstrdup(args->argv[0]); |
76 |
|
|
|
77 |
|
|
status_prompt_set(c, new_prompt, NULL, |
78 |
|
|
cmd_confirm_before_callback, cmd_confirm_before_free, cdata, |
79 |
|
|
PROMPT_SINGLE); |
80 |
|
|
|
81 |
|
|
free(new_prompt); |
82 |
|
|
return (CMD_RETURN_NORMAL); |
83 |
|
|
} |
84 |
|
|
|
85 |
|
|
static enum cmd_retval |
86 |
|
|
cmd_confirm_before_error(struct cmdq_item *item, void *data) |
87 |
|
|
{ |
88 |
|
|
char *error = data; |
89 |
|
|
|
90 |
|
|
cmdq_error(item, "%s", error); |
91 |
|
|
free(error); |
92 |
|
|
|
93 |
|
|
return (CMD_RETURN_NORMAL); |
94 |
|
|
} |
95 |
|
|
|
96 |
|
|
static int |
97 |
|
|
cmd_confirm_before_callback(struct client *c, void *data, const char *s, |
98 |
|
|
__unused int done) |
99 |
|
|
{ |
100 |
|
|
struct cmd_confirm_before_data *cdata = data; |
101 |
|
|
struct cmd_list *cmdlist; |
102 |
|
|
struct cmdq_item *new_item; |
103 |
|
|
char *cause; |
104 |
|
|
|
105 |
|
|
if (c->flags & CLIENT_DEAD) |
106 |
|
|
return (0); |
107 |
|
|
|
108 |
|
|
if (s == NULL || *s == '\0') |
109 |
|
|
return (0); |
110 |
|
|
if (tolower((u_char) s[0]) != 'y' || s[1] != '\0') |
111 |
|
|
return (0); |
112 |
|
|
|
113 |
|
|
cmdlist = cmd_string_parse(cdata->cmd, NULL, 0, &cause); |
114 |
|
|
if (cmdlist == NULL) { |
115 |
|
|
if (cause != NULL) { |
116 |
|
|
new_item = cmdq_get_callback(cmd_confirm_before_error, |
117 |
|
|
cause); |
118 |
|
|
} else |
119 |
|
|
new_item = NULL; |
120 |
|
|
} else { |
121 |
|
|
new_item = cmdq_get_command(cmdlist, NULL, NULL, 0); |
122 |
|
|
cmd_list_free(cmdlist); |
123 |
|
|
} |
124 |
|
|
|
125 |
|
|
if (new_item != NULL) |
126 |
|
|
cmdq_append(c, new_item); |
127 |
|
|
|
128 |
|
|
return (0); |
129 |
|
|
} |
130 |
|
|
|
131 |
|
|
static void |
132 |
|
|
cmd_confirm_before_free(void *data) |
133 |
|
|
{ |
134 |
|
|
struct cmd_confirm_before_data *cdata = data; |
135 |
|
|
|
136 |
|
|
free(cdata->cmd); |
137 |
|
|
free(cdata); |
138 |
|
|
} |