mirror of
https://github.com/tmate-io/tmate-ssh-server.git
synced 2020-11-18 19:53:51 -08:00
a7b0b30bdd
Drop the ability to have a list of keys in the prefix in favour of two separate options, prefix and prefix2. This simplifies the code and gets rid the data options type which was only used for this one option. Also add a -2 flag to send-prefix to send the secondary prefix key, fixing a cause of minor irritation. People who want three prefix keys are out of luck :-).
161 lines
3.6 KiB
C
161 lines
3.6 KiB
C
/* $Id$ */
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/*
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* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <stdarg.h>
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#include <string.h>
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#include "tmux.h"
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/*
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* Option handling; each option has a name, type and value and is stored in
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* a splay tree.
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*/
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SPLAY_GENERATE(options_tree, options_entry, entry, options_cmp);
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int
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options_cmp(struct options_entry *o1, struct options_entry *o2)
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{
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return (strcmp(o1->name, o2->name));
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}
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void
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options_init(struct options *oo, struct options *parent)
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{
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SPLAY_INIT(&oo->tree);
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oo->parent = parent;
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}
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void
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options_free(struct options *oo)
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{
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struct options_entry *o;
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while (!SPLAY_EMPTY(&oo->tree)) {
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o = SPLAY_ROOT(&oo->tree);
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SPLAY_REMOVE(options_tree, &oo->tree, o);
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xfree(o->name);
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if (o->type == OPTIONS_STRING)
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xfree(o->str);
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xfree(o);
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}
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}
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struct options_entry *
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options_find1(struct options *oo, const char *name)
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{
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struct options_entry p;
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p.name = (char *) name;
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return (SPLAY_FIND(options_tree, &oo->tree, &p));
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}
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struct options_entry *
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options_find(struct options *oo, const char *name)
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{
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struct options_entry *o, p;
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p.name = (char *) name;
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o = SPLAY_FIND(options_tree, &oo->tree, &p);
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while (o == NULL) {
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oo = oo->parent;
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if (oo == NULL)
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break;
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o = SPLAY_FIND(options_tree, &oo->tree, &p);
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}
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return (o);
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}
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void
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options_remove(struct options *oo, const char *name)
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{
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struct options_entry *o;
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if ((o = options_find1(oo, name)) == NULL)
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return;
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SPLAY_REMOVE(options_tree, &oo->tree, o);
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xfree(o->name);
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if (o->type == OPTIONS_STRING)
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xfree(o->str);
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xfree(o);
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}
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struct options_entry *printflike3
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options_set_string(struct options *oo, const char *name, const char *fmt, ...)
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{
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struct options_entry *o;
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va_list ap;
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if ((o = options_find1(oo, name)) == NULL) {
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o = xmalloc(sizeof *o);
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o->name = xstrdup(name);
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SPLAY_INSERT(options_tree, &oo->tree, o);
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} else if (o->type == OPTIONS_STRING)
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xfree(o->str);
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va_start(ap, fmt);
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o->type = OPTIONS_STRING;
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xvasprintf(&o->str, fmt, ap);
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va_end(ap);
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return (o);
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}
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char *
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options_get_string(struct options *oo, const char *name)
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{
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struct options_entry *o;
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if ((o = options_find(oo, name)) == NULL)
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fatalx("missing option");
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if (o->type != OPTIONS_STRING)
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fatalx("option not a string");
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return (o->str);
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}
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struct options_entry *
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options_set_number(struct options *oo, const char *name, long long value)
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{
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struct options_entry *o;
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if ((o = options_find1(oo, name)) == NULL) {
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o = xmalloc(sizeof *o);
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o->name = xstrdup(name);
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SPLAY_INSERT(options_tree, &oo->tree, o);
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} else if (o->type == OPTIONS_STRING)
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xfree(o->str);
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o->type = OPTIONS_NUMBER;
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o->num = value;
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return (o);
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}
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long long
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options_get_number(struct options *oo, const char *name)
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{
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struct options_entry *o;
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if ((o = options_find(oo, name)) == NULL)
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fatalx("missing option");
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if (o->type != OPTIONS_NUMBER)
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fatalx("option not a number");
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return (o->num);
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}
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