Annotation of src/usr.bin/tmux/cmd-confirm-before.c, Revision 1.53
1.53 ! nicm 1: /* $OpenBSD: cmd-confirm-before.c,v 1.52 2021/10/28 18:39:15 nicm Exp $ */
1.1 nicm 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: */
1.22 nicm 18:
19: #include <sys/types.h>
1.1 nicm 20:
21: #include <ctype.h>
1.13 nicm 22: #include <stdlib.h>
1.1 nicm 23: #include <string.h>
24:
25: #include "tmux.h"
26:
27: /*
28: * Asks for confirmation before executing a command.
29: */
30:
1.50 nicm 31: static enum args_parse_type cmd_confirm_before_args_parse(struct args *,
32: u_int, char **);
33: static enum cmd_retval cmd_confirm_before_exec(struct cmd *,
34: struct cmdq_item *);
1.1 nicm 35:
1.35 nicm 36: static int cmd_confirm_before_callback(struct client *, void *,
37: const char *, int);
1.31 nicm 38: static void cmd_confirm_before_free(void *);
1.1 nicm 39:
40: const struct cmd_entry cmd_confirm_before_entry = {
1.27 nicm 41: .name = "confirm-before",
42: .alias = "confirm",
43:
1.53 ! nicm 44: .args = { "bc:p:t:y", 1, 1, cmd_confirm_before_args_parse },
! 45: .usage = "[-by] [-c confirm_key] [-p prompt] " CMD_TARGET_CLIENT_USAGE
! 46: " command",
1.27 nicm 47:
1.41 nicm 48: .flags = CMD_CLIENT_TFLAG,
1.27 nicm 49: .exec = cmd_confirm_before_exec
1.1 nicm 50: };
51:
1.4 nicm 52: struct cmd_confirm_before_data {
1.44 nicm 53: struct cmdq_item *item;
1.49 nicm 54: struct cmd_list *cmdlist;
1.53 ! nicm 55: u_char confirm_key;
! 56: int default_yes;
1.4 nicm 57: };
1.50 nicm 58:
59: static enum args_parse_type
60: cmd_confirm_before_args_parse(__unused struct args *args, __unused u_int idx,
61: __unused char **cause)
62: {
63: return (ARGS_PARSE_COMMANDS_OR_STRING);
64: }
1.1 nicm 65:
1.29 nicm 66: static enum cmd_retval
1.31 nicm 67: cmd_confirm_before_exec(struct cmd *self, struct cmdq_item *item)
1.1 nicm 68: {
1.38 nicm 69: struct args *args = cmd_get_args(self);
1.1 nicm 70: struct cmd_confirm_before_data *cdata;
1.41 nicm 71: struct client *tc = cmdq_get_target_client(item);
1.42 nicm 72: struct cmd_find_state *target = cmdq_get_target(item);
1.49 nicm 73: char *new_prompt;
1.53 ! nicm 74: const char *confirm_key, *prompt, *cmd;
1.44 nicm 75: int wait = !args_has(args, 'b');
1.34 nicm 76:
1.47 nicm 77: cdata = xcalloc(1, sizeof *cdata);
1.52 nicm 78: cdata->cmdlist = args_make_commands_now(self, item, 0, 1);
1.49 nicm 79: if (cdata->cmdlist == NULL)
80: return (CMD_RETURN_ERROR);
81:
82: if (wait)
83: cdata->item = item;
1.47 nicm 84:
1.53 ! nicm 85: cdata->default_yes = args_has(args, 'y');
! 86: if ((confirm_key = args_get(args, 'c')) != NULL) {
! 87: if (confirm_key[1] == '\0' &&
! 88: confirm_key[0] > 31 &&
! 89: confirm_key[0] < 127)
! 90: cdata->confirm_key = confirm_key[0];
! 91: else {
! 92: cmdq_error(item, "invalid confirm key");
! 93: return (CMD_RETURN_ERROR);
! 94: }
! 95: }
! 96: else
! 97: cdata->confirm_key = 'y';
! 98:
1.12 nicm 99: if ((prompt = args_get(args, 'p')) != NULL)
100: xasprintf(&new_prompt, "%s ", prompt);
101: else {
1.49 nicm 102: cmd = cmd_get_entry(cmd_list_first(cdata->cmdlist))->name;
1.53 ! nicm 103: xasprintf(&new_prompt, "Confirm '%s'? (%c/n) ",
! 104: cmd, cdata->confirm_key);
1.12 nicm 105: }
1.19 nicm 106:
1.42 nicm 107: status_prompt_set(tc, target, new_prompt, NULL,
108: cmd_confirm_before_callback, cmd_confirm_before_free, cdata,
1.43 nicm 109: PROMPT_SINGLE, PROMPT_TYPE_COMMAND);
1.45 nicm 110: free(new_prompt);
1.1 nicm 111:
1.44 nicm 112: if (!wait)
113: return (CMD_RETURN_NORMAL);
114: return (CMD_RETURN_WAIT);
1.1 nicm 115: }
116:
1.29 nicm 117: static int
1.35 nicm 118: cmd_confirm_before_callback(struct client *c, void *data, const char *s,
119: __unused int done)
1.1 nicm 120: {
121: struct cmd_confirm_before_data *cdata = data;
1.49 nicm 122: struct cmdq_item *item = cdata->item, *new_item;
1.45 nicm 123: int retcode = 1;
1.1 nicm 124:
1.19 nicm 125: if (c->flags & CLIENT_DEAD)
1.45 nicm 126: goto out;
1.19 nicm 127:
1.53 ! nicm 128: if (s == NULL)
1.44 nicm 129: goto out;
1.53 ! nicm 130: if (s[0] != cdata->confirm_key && (s[0] != '\0' || !cdata->default_yes))
1.44 nicm 131: goto out;
1.45 nicm 132: retcode = 0;
1.1 nicm 133:
1.49 nicm 134: if (item == NULL) {
135: new_item = cmdq_get_command(cdata->cmdlist, NULL);
136: cmdq_append(c, new_item);
137: } else {
138: new_item = cmdq_get_command(cdata->cmdlist,
139: cmdq_get_state(item));
140: cmdq_insert_after(item, new_item);
1.1 nicm 141: }
142:
1.44 nicm 143: out:
1.53 ! nicm 144: if (item != NULL) {
! 145: if (cmdq_get_client(item) != NULL &&
! 146: cmdq_get_client(item)->session == NULL)
! 147: cmdq_get_client(item)->retval = retcode;
! 148: cmdq_continue(item);
! 149: }
1.4 nicm 150: return (0);
151: }
152:
1.29 nicm 153: static void
1.4 nicm 154: cmd_confirm_before_free(void *data)
155: {
156: struct cmd_confirm_before_data *cdata = data;
157:
1.49 nicm 158: cmd_list_free(cdata->cmdlist);
1.13 nicm 159: free(cdata);
1.1 nicm 160: }
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