Annotation of src/usr.bin/tmux/cmd-confirm-before.c, Revision 1.30
1.30 ! nicm 1: /* $OpenBSD: cmd-confirm-before.c,v 1.29 2016/10/10 21:51:39 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:
1.29 nicm 31: static enum cmd_retval cmd_confirm_before_exec(struct cmd *, struct cmd_q *);
1.1 nicm 32:
1.29 nicm 33: static int cmd_confirm_before_callback(void *, const char *);
34: static void cmd_confirm_before_free(void *);
1.1 nicm 35:
36: const struct cmd_entry cmd_confirm_before_entry = {
1.27 nicm 37: .name = "confirm-before",
38: .alias = "confirm",
39:
40: .args = { "p:t:", 1, 1 },
41: .usage = "[-p prompt] " CMD_TARGET_CLIENT_USAGE " command",
42:
1.28 nicm 43: .tflag = CMD_CLIENT,
44:
45: .flags = 0,
1.27 nicm 46: .exec = cmd_confirm_before_exec
1.1 nicm 47: };
48:
1.4 nicm 49: struct cmd_confirm_before_data {
50: char *cmd;
1.19 nicm 51: struct client *client;
1.4 nicm 52: };
1.1 nicm 53:
1.29 nicm 54: static enum cmd_retval
1.19 nicm 55: cmd_confirm_before_exec(struct cmd *self, struct cmd_q *cmdq)
1.1 nicm 56: {
1.10 nicm 57: struct args *args = self->args;
1.1 nicm 58: struct cmd_confirm_before_data *cdata;
1.26 nicm 59: struct client *c = cmdq->state.c;
1.12 nicm 60: char *cmd, *copy, *new_prompt, *ptr;
61: const char *prompt;
1.1 nicm 62:
1.12 nicm 63: if ((prompt = args_get(args, 'p')) != NULL)
64: xasprintf(&new_prompt, "%s ", prompt);
65: else {
66: ptr = copy = xstrdup(args->argv[0]);
67: cmd = strsep(&ptr, " \t");
68: xasprintf(&new_prompt, "Confirm '%s'? (y/n) ", cmd);
1.13 nicm 69: free(copy);
1.12 nicm 70: }
1.1 nicm 71:
72: cdata = xmalloc(sizeof *cdata);
1.10 nicm 73: cdata->cmd = xstrdup(args->argv[0]);
1.19 nicm 74:
75: cdata->client = c;
76: cdata->client->references++;
77:
78: status_prompt_set(c, new_prompt, NULL,
1.12 nicm 79: cmd_confirm_before_callback, cmd_confirm_before_free, cdata,
80: PROMPT_SINGLE);
1.1 nicm 81:
1.13 nicm 82: free(new_prompt);
1.19 nicm 83: return (CMD_RETURN_NORMAL);
1.1 nicm 84: }
85:
1.30 ! nicm 86: static enum cmd_retval
! 87: cmd_confirm_before_error(struct cmd_q *cmdq, void *data)
! 88: {
! 89: char *error = data;
! 90:
! 91: cmdq_error(cmdq, "%s", error);
! 92: free(error);
! 93:
! 94: return (CMD_RETURN_NORMAL);
! 95: }
! 96:
1.29 nicm 97: static int
1.1 nicm 98: cmd_confirm_before_callback(void *data, const char *s)
99: {
100: struct cmd_confirm_before_data *cdata = data;
1.19 nicm 101: struct client *c = cdata->client;
1.1 nicm 102: struct cmd_list *cmdlist;
1.30 ! nicm 103: struct cmd_q *new_cmdq;
1.1 nicm 104: char *cause;
105:
1.19 nicm 106: if (c->flags & CLIENT_DEAD)
107: return (0);
108:
1.7 nicm 109: if (s == NULL || *s == '\0')
110: return (0);
111: if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
1.4 nicm 112: return (0);
1.1 nicm 113:
1.19 nicm 114: if (cmd_string_parse(cdata->cmd, &cmdlist, NULL, 0, &cause) != 0) {
1.1 nicm 115: if (cause != NULL) {
1.30 ! nicm 116: new_cmdq = cmdq_get_callback(cmd_confirm_before_error,
! 117: cause);
! 118: } else
! 119: new_cmdq = NULL;
! 120: } else {
! 121: new_cmdq = cmdq_get_command(cmdlist, NULL, NULL, 0);
! 122: cmd_list_free(cmdlist);
1.1 nicm 123: }
124:
1.30 ! nicm 125: if (new_cmdq != NULL)
! 126: cmdq_append(c, new_cmdq);
1.1 nicm 127:
1.4 nicm 128: return (0);
129: }
130:
1.29 nicm 131: static void
1.4 nicm 132: cmd_confirm_before_free(void *data)
133: {
134: struct cmd_confirm_before_data *cdata = data;
1.19 nicm 135: struct client *c = cdata->client;
136:
1.25 nicm 137: server_client_unref(c);
1.4 nicm 138:
1.13 nicm 139: free(cdata->cmd);
140: free(cdata);
1.1 nicm 141: }
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