Annotation of src/usr.bin/tmux/cmd-confirm-before.c, Revision 1.46
1.46 ! nicm 1: /* $OpenBSD: cmd-confirm-before.c,v 1.45 2021/08/13 06:50:42 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:
1.35 nicm 34: static int cmd_confirm_before_callback(struct client *, void *,
35: const char *, int);
1.31 nicm 36: static void cmd_confirm_before_free(void *);
1.1 nicm 37:
38: const struct cmd_entry cmd_confirm_before_entry = {
1.27 nicm 39: .name = "confirm-before",
40: .alias = "confirm",
41:
1.44 nicm 42: .args = { "bp:t:", 1, 1 },
43: .usage = "[-b] [-p prompt] " CMD_TARGET_CLIENT_USAGE " command",
1.27 nicm 44:
1.41 nicm 45: .flags = CMD_CLIENT_TFLAG,
1.27 nicm 46: .exec = cmd_confirm_before_exec
1.1 nicm 47: };
48:
1.4 nicm 49: struct cmd_confirm_before_data {
1.44 nicm 50: char *cmd;
51: struct cmdq_item *item;
52: struct cmd_parse_input pi;
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: {
1.38 nicm 58: struct args *args = cmd_get_args(self);
1.1 nicm 59: struct cmd_confirm_before_data *cdata;
1.41 nicm 60: struct client *tc = cmdq_get_target_client(item);
1.42 nicm 61: struct cmd_find_state *target = cmdq_get_target(item);
1.12 nicm 62: char *cmd, *copy, *new_prompt, *ptr;
63: const char *prompt;
1.44 nicm 64: int wait = !args_has(args, 'b');
1.34 nicm 65:
1.12 nicm 66: if ((prompt = args_get(args, 'p')) != NULL)
67: xasprintf(&new_prompt, "%s ", prompt);
68: else {
69: ptr = copy = xstrdup(args->argv[0]);
70: cmd = strsep(&ptr, " \t");
71: xasprintf(&new_prompt, "Confirm '%s'? (y/n) ", cmd);
1.13 nicm 72: free(copy);
1.12 nicm 73: }
1.1 nicm 74:
1.46 ! nicm 75: cdata = xcalloc(1, sizeof *cdata);
1.10 nicm 76: cdata->cmd = xstrdup(args->argv[0]);
1.19 nicm 77:
1.44 nicm 78: cmd_get_source(self, &cdata->pi.file, &cdata->pi.line);
79: if (wait)
80: cdata->pi.item = item;
81: cdata->pi.c = tc;
82: cmd_find_copy_state(&cdata->pi.fs, target);
83:
84: if (wait)
85: cdata->item = item;
86:
1.42 nicm 87: status_prompt_set(tc, target, new_prompt, NULL,
88: cmd_confirm_before_callback, cmd_confirm_before_free, cdata,
1.43 nicm 89: PROMPT_SINGLE, PROMPT_TYPE_COMMAND);
1.45 nicm 90: free(new_prompt);
1.1 nicm 91:
1.44 nicm 92: if (!wait)
93: return (CMD_RETURN_NORMAL);
94: return (CMD_RETURN_WAIT);
1.1 nicm 95: }
96:
1.29 nicm 97: static int
1.35 nicm 98: cmd_confirm_before_callback(struct client *c, void *data, const char *s,
99: __unused int done)
1.1 nicm 100: {
101: struct cmd_confirm_before_data *cdata = data;
1.44 nicm 102: const char *cmd = cdata->cmd;
1.40 nicm 103: char *error;
1.44 nicm 104: struct cmdq_item *item = cdata->item;
1.40 nicm 105: enum cmd_parse_status status;
1.45 nicm 106: int retcode = 1;
1.1 nicm 107:
1.19 nicm 108: if (c->flags & CLIENT_DEAD)
1.45 nicm 109: goto out;
1.19 nicm 110:
1.7 nicm 111: if (s == NULL || *s == '\0')
1.44 nicm 112: goto out;
1.37 nicm 113: if (tolower((u_char)s[0]) != 'y' || s[1] != '\0')
1.44 nicm 114: goto out;
1.45 nicm 115: retcode = 0;
1.1 nicm 116:
1.44 nicm 117: if (item != NULL) {
118: status = cmd_parse_and_insert(cmd, &cdata->pi, item,
119: cmdq_get_state(item), &error);
120: } else
121: status = cmd_parse_and_append(cmd, &cdata->pi, c, NULL, &error);
1.40 nicm 122: if (status == CMD_PARSE_ERROR) {
123: cmdq_append(c, cmdq_get_error(error));
124: free(error);
1.1 nicm 125: }
126:
1.44 nicm 127: out:
1.45 nicm 128: if (item != NULL) {
129: if (cmdq_get_client(item) != NULL &&
130: cmdq_get_client(item)->session == NULL)
131: cmdq_get_client(item)->retval = retcode;
132: cmdq_continue(item);
133: }
1.4 nicm 134: return (0);
135: }
136:
1.29 nicm 137: static void
1.4 nicm 138: cmd_confirm_before_free(void *data)
139: {
140: struct cmd_confirm_before_data *cdata = data;
141:
1.13 nicm 142: free(cdata->cmd);
143: free(cdata);
1.1 nicm 144: }
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