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Annotation of src/usr.bin/tmux/cmd-show-options.c, Revision 1.55

1.55    ! nicm        1: /* $OpenBSD: cmd-show-options.c,v 1.54 2019/06/20 07:10:56 nicm Exp $ */
1.1       nicm        2:
                      3: /*
1.30      nicm        4:  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1       nicm        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>
1.35      nicm       23: #include <vis.h>
1.1       nicm       24:
                     25: #include "tmux.h"
                     26:
                     27: /*
                     28:  * Show options.
                     29:  */
                     30:
1.34      nicm       31: static enum cmd_retval cmd_show_options_exec(struct cmd *, struct cmdq_item *);
1.1       nicm       32:
1.46      nicm       33: static void            cmd_show_options_print(struct cmd *, struct cmdq_item *,
1.54      nicm       34:                            struct options_entry *, int, int);
1.34      nicm       35: static enum cmd_retval cmd_show_options_all(struct cmd *, struct cmdq_item *,
1.54      nicm       36:                            enum options_table_scope, struct options *);
1.18      nicm       37:
1.1       nicm       38: const struct cmd_entry cmd_show_options_entry = {
1.28      nicm       39:        .name = "show-options",
                     40:        .alias = "show",
                     41:
1.54      nicm       42:        .args = { "AgHqst:vw", 0, 1 },
                     43:        .usage = "[-AgHqsvw] [-t target-session|target-window] [option]",
1.28      nicm       44:
1.41      nicm       45:        .target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
1.29      nicm       46:
1.33      nicm       47:        .flags = CMD_AFTERHOOK,
1.28      nicm       48:        .exec = cmd_show_options_exec
1.1       nicm       49: };
                     50:
1.13      nicm       51: const struct cmd_entry cmd_show_window_options_entry = {
1.28      nicm       52:        .name = "show-window-options",
                     53:        .alias = "showw",
                     54:
                     55:        .args = { "gvt:", 0, 1 },
                     56:        .usage = "[-gv] " CMD_TARGET_WINDOW_USAGE " [option]",
                     57:
1.41      nicm       58:        .target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
1.29      nicm       59:
1.33      nicm       60:        .flags = CMD_AFTERHOOK,
1.28      nicm       61:        .exec = cmd_show_options_exec
1.13      nicm       62: };
                     63:
1.48      nicm       64: const struct cmd_entry cmd_show_hooks_entry = {
                     65:        .name = "show-hooks",
                     66:        .alias = NULL,
                     67:
                     68:        .args = { "gt:", 0, 1 },
                     69:        .usage = "[-g] " CMD_TARGET_SESSION_USAGE,
                     70:
                     71:        .target = { 't', CMD_FIND_SESSION, 0 },
                     72:
                     73:        .flags = CMD_AFTERHOOK,
                     74:        .exec = cmd_show_options_exec
                     75: };
                     76:
1.32      nicm       77: static enum cmd_retval
1.34      nicm       78: cmd_show_options_exec(struct cmd *self, struct cmdq_item *item)
1.1       nicm       79: {
1.31      nicm       80:        struct args                     *args = self->args;
1.41      nicm       81:        struct cmd_find_state           *fs = &item->target;
1.46      nicm       82:        struct client                   *c = cmd_find_client(item, NULL, 1);
                     83:        struct session                  *s = item->target.s;
                     84:        struct winlink                  *wl = item->target.wl;
1.31      nicm       85:        struct options                  *oo;
                     86:        enum options_table_scope         scope;
1.46      nicm       87:        char                            *argument, *name = NULL, *cause;
1.54      nicm       88:        int                              window, idx, ambiguous, parent;
1.46      nicm       89:        struct options_entry            *o;
1.1       nicm       90:
1.35      nicm       91:        window = (self->entry == &cmd_show_window_options_entry);
1.55    ! nicm       92:
1.51      nicm       93:        if (args->argc == 0) {
1.52      nicm       94:                scope = options_scope_from_flags(args, window, fs, &oo, &cause);
                     95:                if (scope == OPTIONS_TABLE_NONE) {
                     96:                        if (args_has(args, 'q'))
                     97:                                return (CMD_RETURN_NORMAL);
                     98:                        cmdq_error(item, "%s", cause);
                     99:                        free(cause);
                    100:                        return (CMD_RETURN_ERROR);
                    101:                }
1.54      nicm      102:                return (cmd_show_options_all(self, item, scope, oo));
1.51      nicm      103:        }
1.46      nicm      104:        argument = format_single(item, args->argv[0], c, s, wl, NULL);
                    105:
                    106:        name = options_match(argument, &idx, &ambiguous);
                    107:        if (name == NULL) {
                    108:                if (args_has(args, 'q'))
                    109:                        goto fail;
                    110:                if (ambiguous)
                    111:                        cmdq_error(item, "ambiguous option: %s", argument);
                    112:                else
                    113:                        cmdq_error(item, "invalid option: %s", argument);
                    114:                goto fail;
                    115:        }
1.55    ! nicm      116:        scope = options_scope_from_name(args, window, name, fs, &oo, &cause);
1.35      nicm      117:        if (scope == OPTIONS_TABLE_NONE) {
1.46      nicm      118:                if (args_has(args, 'q'))
                    119:                        goto fail;
1.35      nicm      120:                cmdq_error(item, "%s", cause);
                    121:                free(cause);
1.46      nicm      122:                goto fail;
1.1       nicm      123:        }
1.46      nicm      124:        o = options_get_only(oo, name);
1.54      nicm      125:        if (args_has(args, 'A') && o == NULL) {
                    126:                o = options_get(oo, name);
                    127:                parent = 1;
                    128:        } else
                    129:                parent = 0;
1.46      nicm      130:        if (o != NULL)
1.54      nicm      131:                cmd_show_options_print(self, item, o, idx, parent);
1.1       nicm      132:
1.46      nicm      133:        free(name);
                    134:        free(argument);
                    135:        return (CMD_RETURN_NORMAL);
                    136:
                    137: fail:
                    138:        free(name);
                    139:        free(argument);
                    140:        return (CMD_RETURN_ERROR);
1.35      nicm      141: }
                    142:
                    143: static void
                    144: cmd_show_options_print(struct cmd *self, struct cmdq_item *item,
1.54      nicm      145:     struct options_entry *o, int idx, int parent)
1.35      nicm      146: {
1.43      nicm      147:        struct options_array_item       *a;
1.48      nicm      148:        const char                      *name = options_name(o);
                    149:        char                            *value, *tmp = NULL, *escaped;
1.35      nicm      150:
                    151:        if (idx != -1) {
1.48      nicm      152:                xasprintf(&tmp, "%s[%d]", name, idx);
1.35      nicm      153:                name = tmp;
                    154:        } else {
1.43      nicm      155:                if (options_isarray(o)) {
                    156:                        a = options_array_first(o);
1.48      nicm      157:                        if (a == NULL) {
                    158:                                if (!args_has(self->args, 'v'))
                    159:                                        cmdq_print(item, "%s", name);
                    160:                                return;
                    161:                        }
1.43      nicm      162:                        while (a != NULL) {
                    163:                                idx = options_array_item_index(a);
1.54      nicm      164:                                cmd_show_options_print(self, item, o, idx,
                    165:                                    parent);
1.43      nicm      166:                                a = options_array_next(a);
1.39      nicm      167:                        }
                    168:                        return;
                    169:                }
1.35      nicm      170:        }
                    171:
1.40      nicm      172:        value = options_tostring(o, idx, 0);
1.35      nicm      173:        if (args_has(self->args, 'v'))
                    174:                cmdq_print(item, "%s", value);
                    175:        else if (options_isstring(o)) {
1.53      nicm      176:                escaped = args_escape(value);
1.54      nicm      177:                if (parent)
                    178:                        cmdq_print(item, "%s* %s", name, escaped);
                    179:                else
                    180:                        cmdq_print(item, "%s %s", name, escaped);
1.35      nicm      181:                free(escaped);
1.54      nicm      182:        } else {
                    183:                if (parent)
                    184:                        cmdq_print(item, "%s* %s", name, value);
                    185:                else
                    186:                        cmdq_print(item, "%s %s", name, value);
                    187:        }
1.47      nicm      188:        free(value);
1.35      nicm      189:
                    190:        free(tmp);
1.18      nicm      191: }
                    192:
1.32      nicm      193: static enum cmd_retval
1.34      nicm      194: cmd_show_options_all(struct cmd *self, struct cmdq_item *item,
1.54      nicm      195:     enum options_table_scope scope, struct options *oo)
1.18      nicm      196: {
1.54      nicm      197:        const struct options_table_entry        *oe;
1.49      nicm      198:        struct options_entry                    *o;
                    199:        struct options_array_item               *a;
                    200:        u_int                                    idx;
1.54      nicm      201:        int                                      parent;
                    202:
                    203:        for (oe = options_table; oe->name != NULL; oe++) {
                    204:                if (oe->scope != scope)
                    205:                        continue;
1.18      nicm      206:
1.48      nicm      207:                if ((self->entry != &cmd_show_hooks_entry &&
                    208:                    !args_has(self->args, 'H') &&
1.49      nicm      209:                    oe != NULL &&
                    210:                    (oe->flags & OPTIONS_TABLE_IS_HOOK)) ||
1.48      nicm      211:                    (self->entry == &cmd_show_hooks_entry &&
1.49      nicm      212:                    (oe == NULL ||
1.54      nicm      213:                    (~oe->flags & OPTIONS_TABLE_IS_HOOK))))
1.48      nicm      214:                        continue;
1.54      nicm      215:
                    216:                o = options_get_only(oo, oe->name);
                    217:                if (o == NULL) {
                    218:                        if (!args_has(self->args, 'A'))
                    219:                                continue;
                    220:                        o = options_get(oo, oe->name);
                    221:                        if (o == NULL)
                    222:                                continue;
                    223:                        parent = 1;
                    224:                } else
                    225:                        parent = 0;
                    226:
1.43      nicm      227:                if (!options_isarray(o))
1.54      nicm      228:                        cmd_show_options_print(self, item, o, -1, parent);
1.48      nicm      229:                else if ((a = options_array_first(o)) == NULL) {
1.54      nicm      230:                        if (!args_has(self->args, 'v')) {
                    231:                                if (parent)
                    232:                                        cmdq_print(item, "%s*", options_name(o));
                    233:                                else
                    234:                                        cmdq_print(item, "%s", options_name(o));
                    235:                        }
1.48      nicm      236:                } else {
1.43      nicm      237:                        while (a != NULL) {
                    238:                                idx = options_array_item_index(a);
1.54      nicm      239:                                cmd_show_options_print(self, item, o, idx, parent);
1.43      nicm      240:                                a = options_array_next(a);
1.35      nicm      241:                        }
1.15      nicm      242:                }
1.18      nicm      243:        }
1.16      nicm      244:        return (CMD_RETURN_NORMAL);
1.1       nicm      245: }