mirror of
https://github.com/TigerVNC/tigervnc.git
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![Constantin Kaplinsky](/assets/img/avatar_default.png)
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@2 3789f03b-4d11-0410-bbf8-ca57d06f2519
411 lines
9.3 KiB
C++
411 lines
9.3 KiB
C++
/* Copyright (C) 2002-2004 RealVNC Ltd. All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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// -=- Configuration.cxx
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include <assert.h>
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#ifdef WIN32
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#define strcasecmp _stricmp
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#define strncasecmp _strnicmp
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#endif
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#include <rfb/util.h>
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#include <rfb/Configuration.h>
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#include <rfb/LogWriter.h>
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#include <rfb/Exception.h>
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#ifdef WIN32
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// Under Win32, we use these routines from several threads,
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// so we must provide suitable locking.
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#include <rfb/Threading.h>
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static rfb::Mutex configLock;
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#endif
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#include <rdr/HexOutStream.h>
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#include <rdr/HexInStream.h>
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using namespace rfb;
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static LogWriter vlog("Config");
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// -=- Configuration
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VoidParameter* Configuration::head = 0;
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bool Configuration::setParam(const char* n, const char* v, bool immutable) {
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return setParam(n, strlen(n), v, immutable);
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}
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bool Configuration::setParam(const char* name, int len,
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const char* val, bool immutable)
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{
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VoidParameter* current = head;
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while (current) {
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if ((int)strlen(current->getName()) == len &&
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strncasecmp(current->getName(), name, len) == 0)
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{
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bool b = current->setParam(val);
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if (b && immutable)
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current->setImmutable();
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return b;
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}
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current = current->_next;
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}
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return false;
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}
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bool Configuration::setParam(const char* config, bool immutable) {
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bool hyphen = false;
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if (config[0] == '-') {
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hyphen = true;
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config++;
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if (config[0] == '-') config++; // allow gnu-style --<option>
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}
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const char* equal = strchr(config, '=');
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if (equal) {
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return setParam(config, equal-config, equal+1, immutable);
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} else if (hyphen) {
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VoidParameter* current = head;
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while (current) {
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if (strcasecmp(current->getName(), config) == 0) {
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bool b = current->setParam();
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if (b && immutable)
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current->setImmutable();
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return b;
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}
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current = current->_next;
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}
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}
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return false;
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}
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VoidParameter* Configuration::getParam(const char* param)
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{
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VoidParameter* current = head;
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while (current) {
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if (strcasecmp(current->getName(), param) == 0)
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return current;
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current = current->_next;
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}
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return 0;
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}
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void Configuration::listParams(int width, int nameWidth) {
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VoidParameter* current = head;
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while (current) {
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char* def_str = current->getDefaultStr();
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const char* desc = current->getDescription();
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fprintf(stderr," %-*s -", nameWidth, current->getName());
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int column = strlen(current->getName());
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if (column < nameWidth) column = nameWidth;
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column += 4;
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while (true) {
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const char* s = strchr(desc, ' ');
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int wordLen;
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if (s) wordLen = s-desc;
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else wordLen = strlen(desc);
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if (column + wordLen + 1 > width) {
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fprintf(stderr,"\n%*s",nameWidth+4,"");
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column = nameWidth+4;
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}
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fprintf(stderr," %.*s",wordLen,desc);
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column += wordLen + 1;
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desc += wordLen + 1;
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if (!s) break;
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}
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if (def_str) {
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if (column + (int)strlen(def_str) + 11 > width)
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fprintf(stderr,"\n%*s",nameWidth+4,"");
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fprintf(stderr," (default=%s)\n",def_str);
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strFree(def_str);
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} else {
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fprintf(stderr,"\n");
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}
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current = current->_next;
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}
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}
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// -=- VoidParameter
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VoidParameter::VoidParameter(const char* name_, const char* desc_)
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: immutable(false), name(name_), description(desc_) {
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_next = Configuration::head;
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Configuration::head = this;
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}
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VoidParameter::~VoidParameter() {
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}
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const char*
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VoidParameter::getName() const {
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return name;
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}
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const char*
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VoidParameter::getDescription() const {
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return description;
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}
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bool VoidParameter::setParam() {
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return false;
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}
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bool VoidParameter::isBool() const {
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return false;
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}
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void
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VoidParameter::setImmutable() {
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vlog.debug("set immutable %s", getName());
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immutable = true;
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}
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// -=- AliasParameter
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AliasParameter::AliasParameter(const char* name_, const char* desc_,
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VoidParameter* param_)
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: VoidParameter(name_, desc_), param(param_) {
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}
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bool
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AliasParameter::setParam(const char* v) {
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return param->setParam(v);
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}
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bool AliasParameter::setParam() {
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return param->setParam();
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}
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char*
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AliasParameter::getDefaultStr() const {
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return 0;
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}
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char* AliasParameter::getValueStr() const {
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return param->getValueStr();
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}
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bool AliasParameter::isBool() const {
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return param->isBool();
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}
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// -=- BoolParameter
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BoolParameter::BoolParameter(const char* name_, const char* desc_, bool v)
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: VoidParameter(name_, desc_), value(v), def_value(v) {
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}
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bool
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BoolParameter::setParam(const char* v) {
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if (immutable) return true;
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if (*v == 0 || strcasecmp(v, "1") == 0 || strcasecmp(v, "on") == 0
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|| strcasecmp(v, "true") == 0 || strcasecmp(v, "yes") == 0)
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value = 1;
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else if (strcasecmp(v, "0") == 0 || strcasecmp(v, "off") == 0
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|| strcasecmp(v, "false") == 0 || strcasecmp(v, "no") == 0)
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value = 0;
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else {
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vlog.error("Bool parameter %s: invalid value '%s'", getName(), v);
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return false;
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}
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vlog.debug("set %s(Bool) to %s(%d)", getName(), v, value);
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return true;
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}
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bool BoolParameter::setParam() {
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setParam(true);
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return true;
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}
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void BoolParameter::setParam(bool b) {
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if (immutable) return;
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value = b;
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vlog.debug("set %s(Bool) to %d", getName(), value);
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}
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char*
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BoolParameter::getDefaultStr() const {
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char* result = new char[8];
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sprintf(result, "%d", (int)def_value);
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return result;
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}
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char* BoolParameter::getValueStr() const {
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char* result = new char[8];
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sprintf(result, "%d", (int)value);
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return result;
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}
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bool BoolParameter::isBool() const {
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return true;
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}
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BoolParameter::operator bool() const {
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return value;
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}
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// -=- IntParameter
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IntParameter::IntParameter(const char* name_, const char* desc_, int v)
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: VoidParameter(name_, desc_), value(v), def_value(v) {
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}
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bool
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IntParameter::setParam(const char* v) {
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if (immutable) return true;
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vlog.debug("set %s(Int) to %s", getName(), v);
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value = atoi(v);
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return true;
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}
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bool
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IntParameter::setParam(int v) {
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if (immutable) return true;
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vlog.debug("set %s(Int) to %d", getName(), v);
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value = v;
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return true;
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}
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char*
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IntParameter::getDefaultStr() const {
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char* result = new char[16];
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sprintf(result, "%d", def_value);
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return result;
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}
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char* IntParameter::getValueStr() const {
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char* result = new char[16];
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sprintf(result, "%d", value);
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return result;
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}
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IntParameter::operator int() const {
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return value;
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}
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// -=- StringParameter
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StringParameter::StringParameter(const char* name_, const char* desc_,
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const char* v)
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: VoidParameter(name_, desc_), value(strDup(v)), def_value(v)
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{
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if (!v) {
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fprintf(stderr,"Default value <null> for %s not allowed\n",name_);
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throw rfb::Exception("Default value <null> not allowed");
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}
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}
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StringParameter::~StringParameter() {
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strFree(value);
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}
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bool StringParameter::setParam(const char* v) {
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#ifdef WIN32
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Lock l(configLock);
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#endif
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if (immutable) return true;
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if (!v)
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throw rfb::Exception("setParam(<null>) not allowed");
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vlog.debug("set %s(String) to %s", getName(), v);
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strFree(value);
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value = strDup(v);
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return value != 0;
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}
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char* StringParameter::getDefaultStr() const {
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return strDup(def_value);
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}
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char* StringParameter::getValueStr() const {
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#ifdef WIN32
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Lock l(configLock);
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#endif
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return strDup(value);
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}
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// -=- BinaryParameter
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BinaryParameter::BinaryParameter(const char* name_, const char* desc_, const void* v, int l)
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: VoidParameter(name_, desc_), value(0), length(0), def_value((char*)v), def_length(l) {
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if (l) {
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value = new char[l];
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length = l;
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memcpy(value, v, l);
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}
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}
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BinaryParameter::~BinaryParameter() {
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if (value)
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delete [] value;
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}
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bool BinaryParameter::setParam(const char* v) {
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#ifdef WIN32
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Lock l(configLock);
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#endif
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if (immutable) return true;
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vlog.debug("set %s(Binary) to %s", getName(), v);
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return rdr::HexInStream::hexStrToBin(v, &value, &length);
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}
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void BinaryParameter::setParam(const void* v, int len) {
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#ifdef WIN32
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Lock l(configLock);
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#endif
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if (immutable) return;
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vlog.debug("set %s(Binary)", getName());
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delete [] value; value = 0;
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if (len) {
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value = new char[len];
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length = len;
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memcpy(value, v, len);
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}
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}
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char* BinaryParameter::getDefaultStr() const {
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return rdr::HexOutStream::binToHexStr(def_value, def_length);
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}
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char* BinaryParameter::getValueStr() const {
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#ifdef WIN32
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Lock l(configLock);
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#endif
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return rdr::HexOutStream::binToHexStr(value, length);
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}
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void BinaryParameter::getData(void** data_, int* length_) const {
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#ifdef WIN32
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Lock l(configLock);
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#endif
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if (length_) *length_ = length;
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if (data_) {
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*data_ = new char[length];
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memcpy(*data_, value, length);
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}
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}
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