1 /* $OpenBSD: cmd-command-prompt.c,v 1.57 2021/08/17 19:26:42 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 cmd_retval cmd_command_prompt_exec(struct cmd *, 33 struct cmdq_item *); 34 35 static int cmd_command_prompt_callback(struct client *, void *, 36 const char *, int); 37 static void cmd_command_prompt_free(void *); 38 39 const struct cmd_entry cmd_command_prompt_entry = { 40 .name = "command-prompt", 41 .alias = NULL, 42 43 .args = { "1bFkiI:Np:t:T:", 0, 1 }, 44 .usage = "[-1bFkiN] [-I inputs] [-p prompts] " CMD_TARGET_CLIENT_USAGE 45 " [-T type] [template]", 46 47 .flags = CMD_CLIENT_TFLAG, 48 .exec = cmd_command_prompt_exec 49 }; 50 51 struct cmd_command_prompt_cdata { 52 struct cmdq_item *item; 53 struct cmd_parse_input pi; 54 55 int flags; 56 enum prompt_type prompt_type; 57 58 char *inputs; 59 char *next_input; 60 61 char *prompts; 62 char *next_prompt; 63 64 char *template; 65 int idx; 66 }; 67 68 static enum cmd_retval 69 cmd_command_prompt_exec(struct cmd *self, struct cmdq_item *item) 70 { 71 struct args *args = cmd_get_args(self); 72 struct client *tc = cmdq_get_target_client(item); 73 struct cmd_find_state *target = cmdq_get_target(item); 74 const char *inputs, *prompts, *type; 75 struct cmd_command_prompt_cdata *cdata; 76 char *prompt, *ptr, *input = NULL; 77 size_t n; 78 int wait = !args_has(args, 'b'); 79 80 if (tc->prompt_string != NULL) 81 return (CMD_RETURN_NORMAL); 82 if (args_has(args, 'i')) 83 wait = 0; 84 85 cdata = xcalloc(1, sizeof *cdata); 86 cdata->idx = 1; 87 88 cmd_get_source(self, &cdata->pi.file, &cdata->pi.line); 89 if (wait) 90 cdata->pi.item = item; 91 cdata->pi.c = tc; 92 cmd_find_copy_state(&cdata->pi.fs, target); 93 94 if (wait) 95 cdata->item = item; 96 97 if (args->argc != 0 && args_has(args, 'F')) 98 cdata->template = format_single_from_target(item, args->argv[0]); 99 else if (args->argc != 0) 100 cdata->template = xstrdup(args->argv[0]); 101 else 102 cdata->template = xstrdup("%1"); 103 104 if ((prompts = args_get(args, 'p')) != NULL) 105 cdata->prompts = xstrdup(prompts); 106 else if (args->argc != 0) { 107 n = strcspn(cdata->template, " ,"); 108 xasprintf(&cdata->prompts, "(%.*s) ", (int) n, cdata->template); 109 } else 110 cdata->prompts = xstrdup(":"); 111 112 /* Get first prompt. */ 113 cdata->next_prompt = cdata->prompts; 114 ptr = strsep(&cdata->next_prompt, ","); 115 if (prompts == NULL) 116 prompt = xstrdup(ptr); 117 else 118 xasprintf(&prompt, "%s ", ptr); 119 120 /* Get initial prompt input. */ 121 if ((inputs = args_get(args, 'I')) != NULL) { 122 cdata->inputs = xstrdup(inputs); 123 cdata->next_input = cdata->inputs; 124 input = strsep(&cdata->next_input, ","); 125 } 126 127 /* Get prompt type. */ 128 if ((type = args_get(args, 'T')) != NULL) { 129 cdata->prompt_type = status_prompt_type(type); 130 if (cdata->prompt_type == PROMPT_TYPE_INVALID) { 131 cmdq_error(item, "unknown type: %s", type); 132 return (CMD_RETURN_ERROR); 133 } 134 } else 135 cdata->prompt_type = PROMPT_TYPE_COMMAND; 136 137 if (args_has(args, '1')) 138 cdata->flags |= PROMPT_SINGLE; 139 else if (args_has(args, 'N')) 140 cdata->flags |= PROMPT_NUMERIC; 141 else if (args_has(args, 'i')) 142 cdata->flags |= PROMPT_INCREMENTAL; 143 else if (args_has(args, 'k')) 144 cdata->flags |= PROMPT_KEY; 145 status_prompt_set(tc, target, prompt, input, 146 cmd_command_prompt_callback, cmd_command_prompt_free, cdata, 147 cdata->flags, cdata->prompt_type); 148 free(prompt); 149 150 if (!wait) 151 return (CMD_RETURN_NORMAL); 152 return (CMD_RETURN_WAIT); 153 } 154 155 static int 156 cmd_command_prompt_callback(struct client *c, void *data, const char *s, 157 int done) 158 { 159 struct cmd_command_prompt_cdata *cdata = data; 160 char *new_template, *prompt, *ptr, *error; 161 char *input = NULL; 162 struct cmdq_item *item = cdata->item; 163 enum cmd_parse_status status; 164 165 if (s == NULL) 166 goto out; 167 if (done && (cdata->flags & PROMPT_INCREMENTAL)) 168 goto out; 169 170 new_template = cmd_template_replace(cdata->template, s, cdata->idx); 171 if (done) { 172 free(cdata->template); 173 cdata->template = new_template; 174 } 175 176 /* 177 * Check if there are more prompts; if so, get its respective input 178 * and update the prompt data. 179 */ 180 if (done && (ptr = strsep(&cdata->next_prompt, ",")) != NULL) { 181 xasprintf(&prompt, "%s ", ptr); 182 input = strsep(&cdata->next_input, ","); 183 status_prompt_update(c, prompt, input); 184 185 free(prompt); 186 cdata->idx++; 187 return (1); 188 } 189 190 if (item != NULL) { 191 status = cmd_parse_and_insert(new_template, &cdata->pi, item, 192 cmdq_get_state(item), &error); 193 } else { 194 status = cmd_parse_and_append(new_template, &cdata->pi, c, NULL, 195 &error); 196 } 197 if (status == CMD_PARSE_ERROR) { 198 cmdq_append(c, cmdq_get_error(error)); 199 free(error); 200 } 201 202 if (!done) 203 free(new_template); 204 if (c->prompt_inputcb != cmd_command_prompt_callback) 205 return (1); 206 207 out: 208 if (item != NULL) 209 cmdq_continue(item); 210 return (0); 211 } 212 213 static void 214 cmd_command_prompt_free(void *data) 215 { 216 struct cmd_command_prompt_cdata *cdata = data; 217 218 free(cdata->inputs); 219 free(cdata->prompts); 220 free(cdata->template); 221 free(cdata); 222 } 223