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/*
* Copyright 2003-2018 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "Data.hxx"
#include "Param.hxx"
#include "Block.hxx"
#include "Parser.hxx"
#include "fs/AllocatedPath.hxx"
#include "util/RuntimeError.hxx"
#include "util/StringAPI.hxx"
#include <stdlib.h>
void
ConfigData::Clear()
{
for (auto &i : params) {
delete i;
i = nullptr;
}
for (auto &i : blocks) {
delete i;
i = nullptr;
}
}
gcc_nonnull_all
static void
Append(ConfigParam *&head, ConfigParam *p)
{
assert(p->next == nullptr);
auto **i = &head;
while (*i != nullptr)
i = &(*i)->next;
*i = p;
}
void
ConfigData::AddParam(ConfigOption option,
std::unique_ptr<ConfigParam> param) noexcept
{
Append(params[size_t(option)], param.release());
}
const char *
ConfigData::GetString(ConfigOption option,
const char *default_value) const noexcept
{
const auto *param = GetParam(option);
if (param == nullptr)
return default_value;
return param->value.c_str();
}
AllocatedPath
ConfigData::GetPath(ConfigOption option) const
{
const auto *param = GetParam(option);
if (param == nullptr)
return nullptr;
return param->GetPath();
}
unsigned
ConfigData::GetUnsigned(ConfigOption option, unsigned default_value) const
{
const auto *param = GetParam(option);
long value;
char *endptr;
if (param == nullptr)
return default_value;
const char *const s = param->value.c_str();
value = strtol(s, &endptr, 0);
if (endptr == s || *endptr != 0 || value < 0)
throw FormatRuntimeError("Not a valid non-negative number in line %i",
param->line);
return (unsigned)value;
}
unsigned
ConfigData::GetPositive(ConfigOption option, unsigned default_value) const
{
const auto *param = GetParam(option);
long value;
char *endptr;
if (param == nullptr)
return default_value;
const char *const s = param->value.c_str();
value = strtol(s, &endptr, 0);
if (endptr == s || *endptr != 0)
throw FormatRuntimeError("Not a valid number in line %i",
param->line);
if (value <= 0)
throw FormatRuntimeError("Not a positive number in line %i",
param->line);
return (unsigned)value;
}
bool
ConfigData::GetBool(ConfigOption option, bool default_value) const
{
const auto *param = GetParam(option);
bool success, value;
if (param == nullptr)
return default_value;
success = get_bool(param->value.c_str(), &value);
if (!success)
throw FormatRuntimeError("Expected boolean value (yes, true, 1) or "
"(no, false, 0) on line %i\n",
param->line);
return value;
}
gcc_nonnull_all
static void
Append(ConfigBlock *&head, ConfigBlock *p)
{
assert(p->next == nullptr);
auto **i = &head;
while (*i != nullptr)
i = &(*i)->next;
*i = p;
}
void
ConfigData::AddBlock(ConfigBlockOption option,
std::unique_ptr<ConfigBlock> block) noexcept
{
Append(blocks[size_t(option)], block.release());
}
const ConfigBlock *
ConfigData::FindBlock(ConfigBlockOption option,
const char *key, const char *value) const
{
for (const auto *block = GetBlock(option);
block != nullptr; block = block->next) {
const char *value2 = block->GetBlockValue(key);
if (value2 == nullptr)
throw FormatRuntimeError("block without '%s' in line %d",
key, block->line);
if (StringIsEqual(value2, value))
return block;
}
return nullptr;
}
ConfigBlock &
ConfigData::MakeBlock(ConfigBlockOption option,
const char *key, const char *value)
{
auto *block = const_cast<ConfigBlock *>(FindBlock(option, key, value));
if (block == nullptr) {
auto new_block = std::make_unique<ConfigBlock>();
new_block->AddBlockParam(key, value);
block = new_block.get();
AddBlock(option, std::move(new_block));
}
return *block;
}
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