Annotation of src/usr.bin/tmux/cmd-confirm-before.c, Revision 1.51
1.51 ! nicm 1: /* $OpenBSD: cmd-confirm-before.c,v 1.50 2021/08/25 08:51:55 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:
1.50 nicm 44: .args = { "bp:t:", 1, 1, cmd_confirm_before_args_parse },
1.44 nicm 45: .usage = "[-b] [-p prompt] " CMD_TARGET_CLIENT_USAGE " command",
1.27 nicm 46:
1.41 nicm 47: .flags = CMD_CLIENT_TFLAG,
1.27 nicm 48: .exec = cmd_confirm_before_exec
1.1 nicm 49: };
50:
1.4 nicm 51: struct cmd_confirm_before_data {
1.44 nicm 52: struct cmdq_item *item;
1.49 nicm 53: struct cmd_list *cmdlist;
1.4 nicm 54: };
1.50 nicm 55:
56: static enum args_parse_type
57: cmd_confirm_before_args_parse(__unused struct args *args, __unused u_int idx,
58: __unused char **cause)
59: {
60: return (ARGS_PARSE_COMMANDS_OR_STRING);
61: }
1.1 nicm 62:
1.29 nicm 63: static enum cmd_retval
1.31 nicm 64: cmd_confirm_before_exec(struct cmd *self, struct cmdq_item *item)
1.1 nicm 65: {
1.38 nicm 66: struct args *args = cmd_get_args(self);
1.1 nicm 67: struct cmd_confirm_before_data *cdata;
1.41 nicm 68: struct client *tc = cmdq_get_target_client(item);
1.42 nicm 69: struct cmd_find_state *target = cmdq_get_target(item);
1.49 nicm 70: char *new_prompt;
71: const char *prompt, *cmd;
1.44 nicm 72: int wait = !args_has(args, 'b');
1.34 nicm 73:
1.47 nicm 74: cdata = xcalloc(1, sizeof *cdata);
1.51 ! nicm 75: cdata->cmdlist = args_make_commands_now(self, item, 0, 0);
1.49 nicm 76: if (cdata->cmdlist == NULL)
77: return (CMD_RETURN_ERROR);
78:
79: if (wait)
80: cdata->item = item;
1.47 nicm 81:
1.12 nicm 82: if ((prompt = args_get(args, 'p')) != NULL)
83: xasprintf(&new_prompt, "%s ", prompt);
84: else {
1.49 nicm 85: cmd = cmd_get_entry(cmd_list_first(cdata->cmdlist))->name;
1.12 nicm 86: xasprintf(&new_prompt, "Confirm '%s'? (y/n) ", cmd);
87: }
1.19 nicm 88:
1.42 nicm 89: status_prompt_set(tc, target, new_prompt, NULL,
90: cmd_confirm_before_callback, cmd_confirm_before_free, cdata,
1.43 nicm 91: PROMPT_SINGLE, PROMPT_TYPE_COMMAND);
1.45 nicm 92: free(new_prompt);
1.1 nicm 93:
1.44 nicm 94: if (!wait)
95: return (CMD_RETURN_NORMAL);
96: return (CMD_RETURN_WAIT);
1.1 nicm 97: }
98:
1.29 nicm 99: static int
1.35 nicm 100: cmd_confirm_before_callback(struct client *c, void *data, const char *s,
101: __unused int done)
1.1 nicm 102: {
103: struct cmd_confirm_before_data *cdata = data;
1.49 nicm 104: struct cmdq_item *item = cdata->item, *new_item;
1.45 nicm 105: int retcode = 1;
1.1 nicm 106:
1.19 nicm 107: if (c->flags & CLIENT_DEAD)
1.45 nicm 108: goto out;
1.19 nicm 109:
1.7 nicm 110: if (s == NULL || *s == '\0')
1.44 nicm 111: goto out;
1.37 nicm 112: if (tolower((u_char)s[0]) != 'y' || s[1] != '\0')
1.44 nicm 113: goto out;
1.45 nicm 114: retcode = 0;
1.1 nicm 115:
1.49 nicm 116: if (item == NULL) {
117: new_item = cmdq_get_command(cdata->cmdlist, NULL);
118: cmdq_append(c, new_item);
119: } else {
120: new_item = cmdq_get_command(cdata->cmdlist,
121: cmdq_get_state(item));
122: cmdq_insert_after(item, new_item);
1.1 nicm 123: }
124:
1.44 nicm 125: out:
1.45 nicm 126: if (item != NULL) {
127: if (cmdq_get_client(item) != NULL &&
128: cmdq_get_client(item)->session == NULL)
129: cmdq_get_client(item)->retval = retcode;
130: cmdq_continue(item);
131: }
1.4 nicm 132: return (0);
133: }
134:
1.29 nicm 135: static void
1.4 nicm 136: cmd_confirm_before_free(void *data)
137: {
138: struct cmd_confirm_before_data *cdata = data;
139:
1.49 nicm 140: cmd_list_free(cdata->cmdlist);
1.13 nicm 141: free(cdata);
1.1 nicm 142: }
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