Annotation of src/usr.bin/tmux/cmd-confirm-before.c, Revision 1.31
1.31 ! nicm 1: /* $OpenBSD: cmd-confirm-before.c,v 1.30 2016/10/16 17:55:14 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:
1.31 ! nicm 31: static enum cmd_retval cmd_confirm_before_exec(struct cmd *,
! 32: struct cmdq_item *);
1.1 nicm 33:
1.31 ! nicm 34: static int cmd_confirm_before_callback(void *, const char *);
! 35: static void cmd_confirm_before_free(void *);
1.1 nicm 36:
37: const struct cmd_entry cmd_confirm_before_entry = {
1.27 nicm 38: .name = "confirm-before",
39: .alias = "confirm",
40:
41: .args = { "p:t:", 1, 1 },
42: .usage = "[-p prompt] " CMD_TARGET_CLIENT_USAGE " command",
43:
1.28 nicm 44: .tflag = CMD_CLIENT,
45:
46: .flags = 0,
1.27 nicm 47: .exec = cmd_confirm_before_exec
1.1 nicm 48: };
49:
1.4 nicm 50: struct cmd_confirm_before_data {
51: char *cmd;
1.19 nicm 52: struct client *client;
1.4 nicm 53: };
1.1 nicm 54:
1.29 nicm 55: static enum cmd_retval
1.31 ! nicm 56: cmd_confirm_before_exec(struct cmd *self, struct cmdq_item *item)
1.1 nicm 57: {
1.10 nicm 58: struct args *args = self->args;
1.1 nicm 59: struct cmd_confirm_before_data *cdata;
1.31 ! nicm 60: struct client *c = item->state.c;
1.12 nicm 61: char *cmd, *copy, *new_prompt, *ptr;
62: const char *prompt;
1.1 nicm 63:
1.12 nicm 64: if ((prompt = args_get(args, 'p')) != NULL)
65: xasprintf(&new_prompt, "%s ", prompt);
66: else {
67: ptr = copy = xstrdup(args->argv[0]);
68: cmd = strsep(&ptr, " \t");
69: xasprintf(&new_prompt, "Confirm '%s'? (y/n) ", cmd);
1.13 nicm 70: free(copy);
1.12 nicm 71: }
1.1 nicm 72:
73: cdata = xmalloc(sizeof *cdata);
1.10 nicm 74: cdata->cmd = xstrdup(args->argv[0]);
1.19 nicm 75:
76: cdata->client = c;
77: cdata->client->references++;
78:
79: status_prompt_set(c, new_prompt, NULL,
1.12 nicm 80: cmd_confirm_before_callback, cmd_confirm_before_free, cdata,
81: PROMPT_SINGLE);
1.1 nicm 82:
1.13 nicm 83: free(new_prompt);
1.19 nicm 84: return (CMD_RETURN_NORMAL);
1.1 nicm 85: }
86:
1.30 nicm 87: static enum cmd_retval
1.31 ! nicm 88: cmd_confirm_before_error(struct cmdq_item *item, void *data)
1.30 nicm 89: {
90: char *error = data;
91:
1.31 ! nicm 92: cmdq_error(item, "%s", error);
1.30 nicm 93: free(error);
94:
95: return (CMD_RETURN_NORMAL);
96: }
97:
1.29 nicm 98: static int
1.1 nicm 99: cmd_confirm_before_callback(void *data, const char *s)
100: {
101: struct cmd_confirm_before_data *cdata = data;
1.19 nicm 102: struct client *c = cdata->client;
1.1 nicm 103: struct cmd_list *cmdlist;
1.31 ! nicm 104: struct cmdq_item *new_item;
1.1 nicm 105: char *cause;
106:
1.19 nicm 107: if (c->flags & CLIENT_DEAD)
108: return (0);
109:
1.7 nicm 110: if (s == NULL || *s == '\0')
111: return (0);
112: if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
1.4 nicm 113: return (0);
1.1 nicm 114:
1.19 nicm 115: if (cmd_string_parse(cdata->cmd, &cmdlist, NULL, 0, &cause) != 0) {
1.1 nicm 116: if (cause != NULL) {
1.31 ! nicm 117: new_item = cmdq_get_callback(cmd_confirm_before_error,
1.30 nicm 118: cause);
119: } else
1.31 ! nicm 120: new_item = NULL;
1.30 nicm 121: } else {
1.31 ! nicm 122: new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
1.30 nicm 123: cmd_list_free(cmdlist);
1.1 nicm 124: }
125:
1.31 ! nicm 126: if (new_item != NULL)
! 127: cmdq_append(c, new_item);
1.1 nicm 128:
1.4 nicm 129: return (0);
130: }
131:
1.29 nicm 132: static void
1.4 nicm 133: cmd_confirm_before_free(void *data)
134: {
135: struct cmd_confirm_before_data *cdata = data;
1.19 nicm 136: struct client *c = cdata->client;
137:
1.25 nicm 138: server_client_unref(c);
1.4 nicm 139:
1.13 nicm 140: free(cdata->cmd);
141: free(cdata);
1.1 nicm 142: }
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