1 /* $OpenBSD: cmd-show-options.c,v 1.65 2020/12/28 09:40:27 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2007 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 <stdlib.h> 22 #include <string.h> 23 #include <vis.h> 24 25 #include "tmux.h" 26 27 /* 28 * Show options. 29 */ 30 31 static enum cmd_retval cmd_show_options_exec(struct cmd *, struct cmdq_item *); 32 33 static void cmd_show_options_print(struct cmd *, struct cmdq_item *, 34 struct options_entry *, int, int); 35 static enum cmd_retval cmd_show_options_all(struct cmd *, struct cmdq_item *, 36 int, struct options *); 37 38 const struct cmd_entry cmd_show_options_entry = { 39 .name = "show-options", 40 .alias = "show", 41 42 .args = { "AgHpqst:vw", 0, 1 }, 43 .usage = "[-AgHpqsvw] " CMD_TARGET_PANE_USAGE " [option]", 44 45 .target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL }, 46 47 .flags = CMD_AFTERHOOK, 48 .exec = cmd_show_options_exec 49 }; 50 51 const struct cmd_entry cmd_show_window_options_entry = { 52 .name = "show-window-options", 53 .alias = "showw", 54 55 .args = { "gvt:", 0, 1 }, 56 .usage = "[-gv] " CMD_TARGET_WINDOW_USAGE " [option]", 57 58 .target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL }, 59 60 .flags = CMD_AFTERHOOK, 61 .exec = cmd_show_options_exec 62 }; 63 64 const struct cmd_entry cmd_show_hooks_entry = { 65 .name = "show-hooks", 66 .alias = NULL, 67 68 .args = { "gpt:w", 0, 1 }, 69 .usage = "[-gpw] " CMD_TARGET_PANE_USAGE, 70 71 .target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL }, 72 73 .flags = CMD_AFTERHOOK, 74 .exec = cmd_show_options_exec 75 }; 76 77 static enum cmd_retval 78 cmd_show_options_exec(struct cmd *self, struct cmdq_item *item) 79 { 80 struct args *args = cmd_get_args(self); 81 struct cmd_find_state *target = cmdq_get_target(item); 82 struct options *oo; 83 char *argument, *name = NULL, *cause; 84 int window, idx, ambiguous, parent, scope; 85 struct options_entry *o; 86 87 window = (cmd_get_entry(self) == &cmd_show_window_options_entry); 88 89 if (args->argc == 0) { 90 scope = options_scope_from_flags(args, window, target, &oo, 91 &cause); 92 if (scope == OPTIONS_TABLE_NONE) { 93 if (args_has(args, 'q')) 94 return (CMD_RETURN_NORMAL); 95 cmdq_error(item, "%s", cause); 96 free(cause); 97 return (CMD_RETURN_ERROR); 98 } 99 return (cmd_show_options_all(self, item, scope, oo)); 100 } 101 argument = format_single_from_target(item, args->argv[0]); 102 103 name = options_match(argument, &idx, &ambiguous); 104 if (name == NULL) { 105 if (args_has(args, 'q')) 106 goto fail; 107 if (ambiguous) 108 cmdq_error(item, "ambiguous option: %s", argument); 109 else 110 cmdq_error(item, "invalid option: %s", argument); 111 goto fail; 112 } 113 scope = options_scope_from_name(args, window, name, target, &oo, 114 &cause); 115 if (scope == OPTIONS_TABLE_NONE) { 116 if (args_has(args, 'q')) 117 goto fail; 118 cmdq_error(item, "%s", cause); 119 free(cause); 120 goto fail; 121 } 122 o = options_get_only(oo, name); 123 if (args_has(args, 'A') && o == NULL) { 124 o = options_get(oo, name); 125 parent = 1; 126 } else 127 parent = 0; 128 if (o != NULL) 129 cmd_show_options_print(self, item, o, idx, parent); 130 131 free(name); 132 free(argument); 133 return (CMD_RETURN_NORMAL); 134 135 fail: 136 free(name); 137 free(argument); 138 return (CMD_RETURN_ERROR); 139 } 140 141 static void 142 cmd_show_options_print(struct cmd *self, struct cmdq_item *item, 143 struct options_entry *o, int idx, int parent) 144 { 145 struct args *args = cmd_get_args(self); 146 struct options_array_item *a; 147 const char *name = options_name(o); 148 char *value, *tmp = NULL, *escaped; 149 150 if (idx != -1) { 151 xasprintf(&tmp, "%s[%d]", name, idx); 152 name = tmp; 153 } else { 154 if (options_is_array(o)) { 155 a = options_array_first(o); 156 if (a == NULL) { 157 if (!args_has(args, 'v')) 158 cmdq_print(item, "%s", name); 159 return; 160 } 161 while (a != NULL) { 162 idx = options_array_item_index(a); 163 cmd_show_options_print(self, item, o, idx, 164 parent); 165 a = options_array_next(a); 166 } 167 return; 168 } 169 } 170 171 value = options_to_string(o, idx, 0); 172 if (args_has(args, 'v')) 173 cmdq_print(item, "%s", value); 174 else if (options_is_string(o)) { 175 escaped = args_escape(value); 176 if (parent) 177 cmdq_print(item, "%s* %s", name, escaped); 178 else 179 cmdq_print(item, "%s %s", name, escaped); 180 free(escaped); 181 } else { 182 if (parent) 183 cmdq_print(item, "%s* %s", name, value); 184 else 185 cmdq_print(item, "%s %s", name, value); 186 } 187 free(value); 188 189 free(tmp); 190 } 191 192 static enum cmd_retval 193 cmd_show_options_all(struct cmd *self, struct cmdq_item *item, int scope, 194 struct options *oo) 195 { 196 struct args *args = cmd_get_args(self); 197 const struct options_table_entry *oe; 198 struct options_entry *o; 199 struct options_array_item *a; 200 const char *name; 201 u_int idx; 202 int parent; 203 204 if (cmd_get_entry(self) != &cmd_show_hooks_entry) { 205 o = options_first(oo); 206 while (o != NULL) { 207 if (options_table_entry(o) == NULL) 208 cmd_show_options_print(self, item, o, -1, 0); 209 o = options_next(o); 210 } 211 } 212 for (oe = options_table; oe->name != NULL; oe++) { 213 if (~oe->scope & scope) 214 continue; 215 216 if ((cmd_get_entry(self) != &cmd_show_hooks_entry && 217 !args_has(args, 'H') && 218 (oe->flags & OPTIONS_TABLE_IS_HOOK)) || 219 (cmd_get_entry(self) == &cmd_show_hooks_entry && 220 (~oe->flags & OPTIONS_TABLE_IS_HOOK))) 221 continue; 222 223 o = options_get_only(oo, oe->name); 224 if (o == NULL) { 225 if (!args_has(args, 'A')) 226 continue; 227 o = options_get(oo, oe->name); 228 if (o == NULL) 229 continue; 230 parent = 1; 231 } else 232 parent = 0; 233 234 if (!options_is_array(o)) 235 cmd_show_options_print(self, item, o, -1, parent); 236 else if ((a = options_array_first(o)) == NULL) { 237 if (!args_has(args, 'v')) { 238 name = options_name(o); 239 if (parent) 240 cmdq_print(item, "%s*", name); 241 else 242 cmdq_print(item, "%s", name); 243 } 244 } else { 245 while (a != NULL) { 246 idx = options_array_item_index(a); 247 cmd_show_options_print(self, item, o, idx, 248 parent); 249 a = options_array_next(a); 250 } 251 } 252 } 253 return (CMD_RETURN_NORMAL); 254 } 255