1 /* $OpenBSD: cmd-show-options.c,v 1.40 2017/01/30 21:41:17 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 enum cmd_retval cmd_show_options_one(struct cmd *, struct cmdq_item *, 34 struct options *); 35 static enum cmd_retval cmd_show_options_all(struct cmd *, struct cmdq_item *, 36 struct options *); 37 38 const struct cmd_entry cmd_show_options_entry = { 39 .name = "show-options", 40 .alias = "show", 41 42 .args = { "gqst:vw", 0, 1 }, 43 .usage = "[-gqsvw] [-t target-session|target-window] [option]", 44 45 .tflag = CMD_WINDOW_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 .tflag = CMD_WINDOW_CANFAIL, 59 60 .flags = CMD_AFTERHOOK, 61 .exec = cmd_show_options_exec 62 }; 63 64 static enum cmd_retval 65 cmd_show_options_exec(struct cmd *self, struct cmdq_item *item) 66 { 67 struct args *args = self->args; 68 struct cmd_find_state *fs = &item->state.tflag; 69 struct options *oo; 70 enum options_table_scope scope; 71 char *cause; 72 int window; 73 74 window = (self->entry == &cmd_show_window_options_entry); 75 scope = options_scope_from_flags(args, window, fs, &oo, &cause); 76 if (scope == OPTIONS_TABLE_NONE) { 77 cmdq_error(item, "%s", cause); 78 free(cause); 79 return (CMD_RETURN_ERROR); 80 } 81 82 if (args->argc == 0) 83 return (cmd_show_options_all(self, item, oo)); 84 else 85 return (cmd_show_options_one(self, item, oo)); 86 } 87 88 static void 89 cmd_show_options_print(struct cmd *self, struct cmdq_item *item, 90 struct options_entry *o, int idx) 91 { 92 const char *name; 93 const char *value; 94 char *tmp, *escaped; 95 u_int size, i; 96 97 if (idx != -1) { 98 xasprintf(&tmp, "%s[%d]", options_name(o), idx); 99 name = tmp; 100 } else { 101 if (options_array_size(o, &size) != -1) { 102 for (i = 0; i < size; i++) { 103 if (options_array_get(o, i) == NULL) 104 continue; 105 cmd_show_options_print(self, item, o, i); 106 } 107 return; 108 } 109 tmp = NULL; 110 name = options_name(o); 111 } 112 113 value = options_tostring(o, idx, 0); 114 if (args_has(self->args, 'v')) 115 cmdq_print(item, "%s", value); 116 else if (options_isstring(o)) { 117 utf8_stravis(&escaped, value, VIS_OCTAL|VIS_TAB|VIS_NL|VIS_DQ); 118 cmdq_print(item, "%s \"%s\"", name, escaped); 119 free(escaped); 120 } else 121 cmdq_print(item, "%s %s", name, value); 122 123 free(tmp); 124 } 125 126 static enum cmd_retval 127 cmd_show_options_one(struct cmd *self, struct cmdq_item *item, 128 struct options *oo) 129 { 130 struct args *args = self->args; 131 struct options_entry *o; 132 int idx, ambiguous; 133 const char *name = args->argv[0]; 134 135 o = options_match_get(oo, name, &idx, 1, &ambiguous); 136 if (o == NULL) { 137 if (args_has(args, 'q')) 138 return (CMD_RETURN_NORMAL); 139 if (ambiguous) { 140 cmdq_error(item, "ambiguous option: %s", name); 141 return (CMD_RETURN_ERROR); 142 } 143 if (*name != '@' && 144 options_match_get(oo, name, &idx, 0, &ambiguous) != NULL) 145 return (CMD_RETURN_NORMAL); 146 cmdq_error(item, "unknown option: %s", name); 147 return (CMD_RETURN_ERROR); 148 } 149 cmd_show_options_print(self, item, o, idx); 150 return (CMD_RETURN_NORMAL); 151 } 152 153 static enum cmd_retval 154 cmd_show_options_all(struct cmd *self, struct cmdq_item *item, 155 struct options *oo) 156 { 157 struct options_entry *o; 158 const struct options_table_entry *oe; 159 u_int size, idx; 160 161 o = options_first(oo); 162 while (o != NULL) { 163 oe = options_table_entry(o); 164 if (oe != NULL && oe->style != NULL) { 165 o = options_next(o); 166 continue; 167 } 168 if (options_array_size(o, &size) == -1) 169 cmd_show_options_print(self, item, o, -1); 170 else { 171 for (idx = 0; idx < size; idx++) { 172 if (options_array_get(o, idx) == NULL) 173 continue; 174 cmd_show_options_print(self, item, o, idx); 175 } 176 } 177 o = options_next(o); 178 } 179 return (CMD_RETURN_NORMAL); 180 } 181