1 /* $OpenBSD: cmd-command-prompt.c,v 1.64 2021/09/22 15:21:44 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com> 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 <sys/types.h> 20 21 #include <ctype.h> 22 #include <stdlib.h> 23 #include <string.h> 24 #include <time.h> 25 26 #include "tmux.h" 27 28 /* 29 * Prompt for command in client. 30 */ 31 32 static enum args_parse_type cmd_command_prompt_args_parse(struct args *, 33 u_int, char **); 34 static enum cmd_retval cmd_command_prompt_exec(struct cmd *, 35 struct cmdq_item *); 36 37 static int cmd_command_prompt_callback(struct client *, void *, 38 const char *, int); 39 static void cmd_command_prompt_free(void *); 40 41 const struct cmd_entry cmd_command_prompt_entry = { 42 .name = "command-prompt", 43 .alias = NULL, 44 45 .args = { "1bFkiI:Np:t:T:", 0, 1, cmd_command_prompt_args_parse }, 46 .usage = "[-1bFkiN] [-I inputs] [-p prompts] " CMD_TARGET_CLIENT_USAGE 47 " [-T type] [template]", 48 49 .flags = CMD_CLIENT_TFLAG, 50 .exec = cmd_command_prompt_exec 51 }; 52 53 struct cmd_command_prompt_prompt { 54 char *input; 55 char *prompt; 56 }; 57 58 struct cmd_command_prompt_cdata { 59 struct cmdq_item *item; 60 struct args_command_state *state; 61 62 int flags; 63 enum prompt_type prompt_type; 64 65 struct cmd_command_prompt_prompt *prompts; 66 u_int count; 67 u_int current; 68 69 int argc; 70 char **argv; 71 }; 72 73 static enum args_parse_type 74 cmd_command_prompt_args_parse(__unused struct args *args, __unused u_int idx, 75 __unused char **cause) 76 { 77 return (ARGS_PARSE_COMMANDS_OR_STRING); 78 } 79 80 static enum cmd_retval 81 cmd_command_prompt_exec(struct cmd *self, struct cmdq_item *item) 82 { 83 struct args *args = cmd_get_args(self); 84 struct client *tc = cmdq_get_target_client(item); 85 struct cmd_find_state *target = cmdq_get_target(item); 86 const char *type, *s, *input; 87 struct cmd_command_prompt_cdata *cdata; 88 char *tmp, *prompts, *prompt, *next_prompt; 89 char *inputs = NULL, *next_input; 90 u_int count = args_count(args); 91 int wait = !args_has(args, 'b'), space = 1; 92 93 if (tc->prompt_string != NULL) 94 return (CMD_RETURN_NORMAL); 95 if (args_has(args, 'i')) 96 wait = 0; 97 98 cdata = xcalloc(1, sizeof *cdata); 99 if (wait) 100 cdata->item = item; 101 cdata->state = args_make_commands_prepare(self, item, 0, "%1", wait, 102 args_has(args, 'F')); 103 104 if ((s = args_get(args, 'p')) == NULL) { 105 if (count != 0) { 106 tmp = args_make_commands_get_command(cdata->state); 107 xasprintf(&prompts, "(%s)", tmp); 108 free(tmp); 109 } else { 110 prompts = xstrdup(":"); 111 space = 0; 112 } 113 next_prompt = prompts; 114 } else 115 next_prompt = prompts = xstrdup (s); 116 if ((s = args_get(args, 'I')) != NULL) 117 next_input = inputs = xstrdup(s); 118 else 119 next_input = NULL; 120 while ((prompt = strsep(&next_prompt, ",")) != NULL) { 121 cdata->prompts = xreallocarray(cdata->prompts, cdata->count + 1, 122 sizeof *cdata->prompts); 123 if (!space) 124 tmp = xstrdup(prompt); 125 else 126 xasprintf(&tmp, "%s ", prompt); 127 cdata->prompts[cdata->count].prompt = tmp; 128 129 if (next_input != NULL) { 130 input = strsep(&next_input, ","); 131 if (input == NULL) 132 input = ""; 133 } else 134 input = ""; 135 cdata->prompts[cdata->count].input = xstrdup(input); 136 137 cdata->count++; 138 } 139 free(inputs); 140 free(prompts); 141 142 if ((type = args_get(args, 'T')) != NULL) { 143 cdata->prompt_type = status_prompt_type(type); 144 if (cdata->prompt_type == PROMPT_TYPE_INVALID) { 145 cmdq_error(item, "unknown type: %s", type); 146 return (CMD_RETURN_ERROR); 147 } 148 } else 149 cdata->prompt_type = PROMPT_TYPE_COMMAND; 150 151 if (args_has(args, '1')) 152 cdata->flags |= PROMPT_SINGLE; 153 else if (args_has(args, 'N')) 154 cdata->flags |= PROMPT_NUMERIC; 155 else if (args_has(args, 'i')) 156 cdata->flags |= PROMPT_INCREMENTAL; 157 else if (args_has(args, 'k')) 158 cdata->flags |= PROMPT_KEY; 159 status_prompt_set(tc, target, cdata->prompts[0].prompt, 160 cdata->prompts[0].input, cmd_command_prompt_callback, 161 cmd_command_prompt_free, cdata, cdata->flags, cdata->prompt_type); 162 163 if (!wait) 164 return (CMD_RETURN_NORMAL); 165 return (CMD_RETURN_WAIT); 166 } 167 168 static int 169 cmd_command_prompt_callback(struct client *c, void *data, const char *s, 170 int done) 171 { 172 struct cmd_command_prompt_cdata *cdata = data; 173 char *error; 174 struct cmdq_item *item = cdata->item, *new_item; 175 struct cmd_list *cmdlist; 176 struct cmd_command_prompt_prompt *prompt; 177 int argc = 0; 178 char **argv = NULL; 179 180 if (s == NULL) 181 goto out; 182 if (done) { 183 if (cdata->flags & PROMPT_INCREMENTAL) 184 goto out; 185 186 cmd_append_argv(&cdata->argc, &cdata->argv, s); 187 if (++cdata->current != cdata->count) { 188 prompt = &cdata->prompts[cdata->current]; 189 status_prompt_update(c, prompt->prompt, prompt->input); 190 return (1); 191 } 192 } 193 194 argc = cdata->argc; 195 argv = cmd_copy_argv(cdata->argc, cdata->argv); 196 cmd_append_argv(&argc, &argv, s); 197 if (done) { 198 cdata->argc = argc; 199 cdata->argv = cmd_copy_argv(argc, argv); 200 } 201 202 cmdlist = args_make_commands(cdata->state, argc, argv, &error); 203 if (cmdlist == NULL) { 204 cmdq_append(c, cmdq_get_error(error)); 205 free(error); 206 } else if (item == NULL) { 207 new_item = cmdq_get_command(cmdlist, NULL); 208 cmdq_append(c, new_item); 209 } else { 210 new_item = cmdq_get_command(cmdlist, cmdq_get_state(item)); 211 cmdq_insert_after(item, new_item); 212 } 213 cmd_free_argv(argc, argv); 214 215 if (c->prompt_inputcb != cmd_command_prompt_callback) 216 return (1); 217 218 out: 219 if (item != NULL) 220 cmdq_continue(item); 221 return (0); 222 } 223 224 static void 225 cmd_command_prompt_free(void *data) 226 { 227 struct cmd_command_prompt_cdata *cdata = data; 228 u_int i; 229 230 for (i = 0; i < cdata->count; i++) { 231 free(cdata->prompts[i].prompt); 232 free(cdata->prompts[i].input); 233 } 234 free(cdata->prompts); 235 cmd_free_argv(cdata->argc, cdata->argv); 236 args_make_commands_free(cdata->state); 237 free(cdata); 238 } 239