1 /* $OpenBSD: cmd-confirm-before.c,v 1.19 2013/03/24 09:54:10 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 <ctype.h> 20 #include <stdlib.h> 21 #include <string.h> 22 23 #include "tmux.h" 24 25 /* 26 * Asks for confirmation before executing a command. 27 */ 28 29 void cmd_confirm_before_key_binding(struct cmd *, int); 30 enum cmd_retval cmd_confirm_before_exec(struct cmd *, struct cmd_q *); 31 32 int cmd_confirm_before_callback(void *, const char *); 33 void cmd_confirm_before_free(void *); 34 35 const struct cmd_entry cmd_confirm_before_entry = { 36 "confirm-before", "confirm", 37 "p:t:", 1, 1, 38 "[-p prompt] " CMD_TARGET_CLIENT_USAGE " command", 39 0, 40 cmd_confirm_before_key_binding, 41 NULL, 42 cmd_confirm_before_exec 43 }; 44 45 struct cmd_confirm_before_data { 46 char *cmd; 47 struct client *client; 48 }; 49 50 void 51 cmd_confirm_before_key_binding(struct cmd *self, int key) 52 { 53 switch (key) { 54 case '&': 55 self->args = args_create(1, "kill-window"); 56 args_set(self->args, 'p', "kill-window #W? (y/n)"); 57 break; 58 case 'x': 59 self->args = args_create(1, "kill-pane"); 60 args_set(self->args, 'p', "kill-pane #P? (y/n)"); 61 break; 62 default: 63 self->args = args_create(0); 64 break; 65 } 66 } 67 68 enum cmd_retval 69 cmd_confirm_before_exec(struct cmd *self, struct cmd_q *cmdq) 70 { 71 struct args *args = self->args; 72 struct cmd_confirm_before_data *cdata; 73 struct client *c; 74 char *cmd, *copy, *new_prompt, *ptr; 75 const char *prompt; 76 77 if ((c = cmd_find_client(cmdq, args_get(args, 't'), 0)) == NULL) 78 return (CMD_RETURN_ERROR); 79 80 if ((prompt = args_get(args, 'p')) != NULL) 81 xasprintf(&new_prompt, "%s ", prompt); 82 else { 83 ptr = copy = xstrdup(args->argv[0]); 84 cmd = strsep(&ptr, " \t"); 85 xasprintf(&new_prompt, "Confirm '%s'? (y/n) ", cmd); 86 free(copy); 87 } 88 89 cdata = xmalloc(sizeof *cdata); 90 cdata->cmd = xstrdup(args->argv[0]); 91 92 cdata->client = c; 93 cdata->client->references++; 94 95 status_prompt_set(c, new_prompt, NULL, 96 cmd_confirm_before_callback, cmd_confirm_before_free, cdata, 97 PROMPT_SINGLE); 98 99 free(new_prompt); 100 return (CMD_RETURN_NORMAL); 101 } 102 103 int 104 cmd_confirm_before_callback(void *data, const char *s) 105 { 106 struct cmd_confirm_before_data *cdata = data; 107 struct client *c = cdata->client; 108 struct cmd_list *cmdlist; 109 char *cause; 110 111 if (c->flags & CLIENT_DEAD) 112 return (0); 113 114 if (s == NULL || *s == '\0') 115 return (0); 116 if (tolower((u_char) s[0]) != 'y' || s[1] != '\0') 117 return (0); 118 119 if (cmd_string_parse(cdata->cmd, &cmdlist, NULL, 0, &cause) != 0) { 120 if (cause != NULL) { 121 cmdq_error(c->cmdq, "%s", cause); 122 free(cause); 123 } 124 return (0); 125 } 126 127 cmdq_run(c->cmdq, cmdlist); 128 cmd_list_free(cmdlist); 129 130 return (0); 131 } 132 133 void 134 cmd_confirm_before_free(void *data) 135 { 136 struct cmd_confirm_before_data *cdata = data; 137 struct client *c = cdata->client; 138 139 c->references--; 140 141 free(cdata->cmd); 142 free(cdata); 143 } 144