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#include "stdafx.h"

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#include "openttd.h"

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#include "screenshot.h"

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#include "sound.h"

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#include "string.h"

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#include "table/currency.h"

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#include "network.h"

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#include "settings.h"

    10

    11

typedef struct IniFile IniFile;

    12

typedef struct IniItem IniItem;

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typedef struct IniGroup IniGroup;

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typedef struct SettingsMemoryPool SettingsMemoryPool;

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    16

static void pool_init(SettingsMemoryPool **pool);

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static void *pool_alloc(SettingsMemoryPool **pool, uint size);

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static void *pool_strdup(SettingsMemoryPool **pool, const char *mem, uint size);

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static void pool_free(SettingsMemoryPool **pool);

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struct SettingsMemoryPool {

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	uint pos,size;

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	SettingsMemoryPool *next;

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	byte mem[1];

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};

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    27

static SettingsMemoryPool *pool_new(uint minsize)

    28

{

    29

	SettingsMemoryPool *p;

    30

	if (minsize < 4096 - 12) minsize = 4096 - 12;

    31

    32

	p = malloc(sizeof(SettingsMemoryPool) - 1 + minsize);

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	p->pos = 0;

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	p->size = minsize;

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	p->next = NULL;

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	return p;

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}

    38

    39

static void pool_init(SettingsMemoryPool **pool)

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{

    41

	*pool = pool_new(0);

    42

}

    43

    44

static void *pool_alloc(SettingsMemoryPool **pool, uint size)

    45

{

    46

	uint pos;

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	SettingsMemoryPool *p = *pool;

    48

    49

	size = (size + 3) & ~3; // align everything to a 32 bit boundary

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    51

	// first check if there's memory in the next pool

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	if (p->next && p->next->pos + size <= p->next->size) {

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		p = p->next;

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	// then check if there's not memory in the cur pool

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	} else if (p->pos + size > p->size) {

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		SettingsMemoryPool *n = pool_new(size);

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		*pool = n;

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		n->next = p;

    59

		p = n;

    60

	}

    61

    62

	pos = p->pos;

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	p->pos += size;

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	return p->mem + pos;

    65

}

    66

    67

static void *pool_strdup(SettingsMemoryPool **pool, const char *mem, uint size)

    68

{

    69

	byte *p = pool_alloc(pool, size + 1);

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	p[size] = 0;

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	memcpy(p, mem, size);

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	return p;

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}

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    75

static void pool_free(SettingsMemoryPool **pool)

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{

    77

	SettingsMemoryPool *p = *pool, *n;

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	*pool = NULL;

    79

	while (p) {

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		n = p->next;

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		free(p);

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		p = n;

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	}

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}

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    86

// structs describing the ini format.

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struct IniItem {

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	char *name;

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	char *value;

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	char *comment;

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	IniItem *next;

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};

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    94

struct IniGroup {

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	char *name; // name of group

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	char *comment; //comment for group

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	IniItem *item, **last_item;

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	IniGroup *next;

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	IniFile *ini;

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	IniGroupType type; // type of group

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};

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   103

struct IniFile {

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	SettingsMemoryPool *pool;

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	IniGroup *group, **last_group;

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	char *comment; // last comment in file

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};

   108

   109

// allocate an inifile object

   110

static IniFile *ini_alloc(void)

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{

   112

	IniFile *ini;

   113

	SettingsMemoryPool *pool;

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	pool_init(&pool);

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	ini = (IniFile*)pool_alloc(&pool, sizeof(IniFile));

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	ini->pool = pool;

   117

	ini->group = NULL;

   118

	ini->last_group = &ini->group;

   119

	ini->comment = NULL;

   120

	return ini;

   121

}

   122

   123

// allocate an ini group object

   124

static IniGroup *ini_group_alloc(IniFile *ini, const char *grpt, int len)

   125

{

   126

	IniGroup *grp = pool_alloc(&ini->pool, sizeof(IniGroup));

   127

	grp->ini = ini;

   128

	grp->name = pool_strdup(&ini->pool, grpt, len);

   129

	if(!strcmp(grp->name, "newgrf") || !strcmp(grp->name, "servers") || !strcmp(grp->name, "bans") )

   130

		grp->type = IGT_LIST;

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	else

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		grp->type = IGT_VARIABLES;

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	grp->next = NULL;

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	grp->item = NULL;

   135

	grp->comment = NULL;

   136

	grp->last_item = &grp->item;

   137

	*ini->last_group = grp;

   138

	ini->last_group = &grp->next;

   139

	return grp;

   140

}

   141

   142

static IniItem *ini_item_alloc(IniGroup *group, const char *name, int len)

   143

{

   144

	IniItem *item = pool_alloc(&group->ini->pool, sizeof(IniItem));

   145

	item->name = pool_strdup(&group->ini->pool, name, len);

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	item->next = NULL;

   147

	item->comment = NULL;

   148

	item->value = NULL;

   149

	*group->last_item = item;

   150

	group->last_item = &item->next;

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	return item;

   152

}

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   154

// load an ini file into the "abstract" format

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static IniFile *ini_load(const char *filename)

   156

{

   157

	char buffer[1024], c, *s, *t, *e;

   158

	FILE *in;

   159

	IniFile *ini;

   160

	IniGroup *group = NULL;

   161

	IniItem *item;

   162

   163

	char *comment = NULL;

   164

	uint comment_size = 0;

   165

	uint comment_alloc = 0;

   166

   167

	ini = ini_alloc();

   168

   169

	in = fopen(filename, "r");

   170

	if (in == NULL) return ini;

   171

   172

	// for each line in the file

   173

	while (fgets(buffer, sizeof(buffer), in)) {

   174

   175

		// trim whitespace from the left side

   176

		for(s=buffer; s[0] == ' ' || s[0] == '\t'; s++);

   177

   178

		// trim whitespace from right side.

   179

		e = s + strlen(s);

   180

		while (e > s && ((c=e[-1]) == '\n' || c == '\r' || c == ' ' || c == '\t')) e--;

   181

		*e = 0;

   182

   183

		// skip comments and empty lines

   184

		if (*s == '#' || *s == 0) {

   185

			uint ns = comment_size + (e - s + 1);

   186

			uint a = comment_alloc;

   187

			uint pos;

   188

			// add to comment

   189

			if (ns > a) {

   190

				a = max(a, 128);

   191

				do a*=2; while (a < ns);

   192

				comment = realloc(comment, comment_alloc = a);

   193

			}

   194

			pos = comment_size;

   195

			comment_size += (e - s + 1);

   196

			comment[pos + e - s] = '\n'; // comment newline

   197

			memcpy(comment + pos, s, e - s); // copy comment contents

   198

			continue;

   199

		}

   200

   201

		// it's a group?

   202

		if (s[0] == '[') {

   203

			if (e[-1] != ']')

   204

				ShowInfoF("ini: invalid group name '%s'\n", buffer);

   205

			else

   206

				e--;

   207

			s++; // skip [

   208

			group = ini_group_alloc(ini, s, e - s);

   209

			if (comment_size) {

   210

				group->comment = pool_strdup(&ini->pool, comment, comment_size);

   211

				comment_size = 0;

   212

			}

   213

		} else if (group) {

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			// find end of keyname

   215

			for(t=s; *t != 0 && *t != '=' && *t != '\t' && *t != ' '; t++) {}

   216

   217

			// it's an item in an existing group

   218

			item = ini_item_alloc(group, s, t-s);

   219

			if (comment_size) {

   220

				item->comment = pool_strdup(&ini->pool, comment, comment_size);

   221

				comment_size = 0;

   222

			}

   223

   224

			// for list items, the name and value are the same:

   225

			if( group->type == IGT_LIST ) {

   226

				item->value = item->name;

   227

				continue;

   228

			}

   229

   230

			// find start of parameter

   231

			while (*t == '=' || *t == ' ' || *t == '\t') t++;

   232

   233

   234

			// remove starting quotation marks

   235

			if(*t=='\"') t++;

   236

			// remove ending quotation marks

   237

			e = t + strlen(t);

   238

			if(e>t && e[-1] =='\"') e--;

   239

			*e = 0;

   240

   241

			item->value = pool_strdup(&ini->pool, t, e - t);

   242

		} else {

   243

			// it's an orphan item

   244

			ShowInfoF("ini: '%s' outside of group\n", buffer);

   245

		}

   246

	}

   247

   248

	if (comment_size) {

   249

		ini->comment = pool_strdup(&ini->pool, comment, comment_size);

   250

		comment_size = 0;

   251

	}

   252

   253

	free(comment);

   254

	fclose(in);

   255

   256

	return ini;

   257

}

   258

   259

// lookup a group or make a new one

   260

static IniGroup *ini_getgroup(IniFile *ini, const char *name, int len)

   261

{

   262

	IniGroup *group;

   263

   264

	if (len == -1) len = strlen(name);

   265

   266

	// does it exist already?

   267

	for(group = ini->group; group; group = group->next)

   268

		if (!memcmp(group->name, name, len) && group->name[len] == 0)

   269

			return group;

   270

   271

	// otherwise make a new one

   272

	group = ini_group_alloc(ini, name, len);

   273

	group->comment = pool_strdup(&ini->pool, "\n", 1);

   274

	return group;

   275

}

   276

   277

// lookup an item or make a new one

   278

static IniItem *ini_getitem(IniGroup *group, const char *name, bool create)

   279

{

   280

	IniItem *item;

   281

	uint len = strlen(name);

   282

   283

	for(item = group->item; item; item = item->next)

   284

		if (!strcmp(item->name, name))

   285

			return item;

   286

   287

	if (!create) return NULL;

   288

   289

	// otherwise make a new one

   290

	item = ini_item_alloc(group, name, len);

   291

	return item;

   292

}

   293

   294

// save ini file from the "abstract" format.

   295

static bool ini_save(const char *filename, IniFile *ini)

   296

{

   297

	FILE *f;

   298

	IniGroup *group;

   299

	IniItem *item;

   300

   301

	f = fopen(filename, "w");

   302

	if (f == NULL) return false;

   303

   304

	for(group = ini->group; group; group = group->next) {

   305

		if (group->comment) fputs(group->comment, f);

   306

		fprintf(f, "[%s]\n", group->name);

   307

		for(item = group->item; item; item = item->next) {

   308

			if (item->comment) fputs(item->comment, f);

   309

			if(group->type==IGT_LIST)

   310

				fprintf(f, "%s\n", item->value ? item->value : "");

   311

			else

   312

				fprintf(f, "%s = %s\n", item->name, item->value ? item->value : "");

   313

		}

   314

	}

   315

	if (ini->comment) fputs(ini->comment, f);

   316

   317

	fclose(f);

   318

	return true;

   319

}

   320

   321

static void ini_free(IniFile *ini)

   322

{

   323

	pool_free(&ini->pool);

   324

}

   325

   326

static int lookup_oneofmany(const char *many, const char *one, int onelen)

   327

{

   328

	const char *s;

   329

	int idx;

   330

   331

	if (onelen == -1) onelen = strlen(one);

   332

   333

	// check if it's an integer

   334

	if (*one >= '0' && *one <= '9')

   335

		return strtoul(one, NULL, 0);

   336

   337

	idx = 0;

   338

	for(;;) {

   339

		// find end of item

   340

		s = many;

   341

		while (*s != '|' && *s != 0) s++;

   342

		if (s - many == onelen && !memcmp(one, many, onelen)) return idx;

   343

		if (*s == 0) return -1;

   344

		many = s + 1;

   345

		idx++;

   346

	}

   347

}

   348

   349

static uint32 lookup_manyofmany(const char *many, const char *str)

   350

{

   351

	const char *s;

   352

	int r;

   353

	uint32 res = 0;

   354

   355

	for(;;) {

   356

		// skip "whitespace"

   357

		while (*str == ' ' || *str == '\t' || *str == '|') str++;

   358

		if (*str == 0) break;

   359

   360

		s = str;

   361

		while (*s != 0 && *s != ' ' && *s != '\t' && *s != '|') s++;

   362

   363

		r = lookup_oneofmany(many, str, s - str);

   364

		if (r == -1) return (uint32)-1;

   365

   366

		res |= (1 << r);

   367

		if (*s == 0) break;

   368

		str = s + 1;

   369

	}

   370

	return res;

   371

}

   372

   373

static int parse_intlist(const char *p, int *items, int maxitems)

   374

{

   375

	int n = 0, v;

   376

	char *end;

   377

   378

	for(;;) {

   379

		v = strtol(p, &end, 0);

   380

		if (p == end || n == maxitems) return -1;

   381

		p = end;

   382

		items[n++] = v;

   383

		if (*p == 0) break;

   384

		if (*p != ',') return -1;

   385

		p++;

   386

	}

   387

   388

	return n;

   389

}

   390

   391

static bool load_intlist(const char *str, void *array, int nelems, int type)

   392

{

   393

	int items[64];

   394

	int i,nitems;

   395

   396

	if (str == NULL) {

   397

		memset(items, 0, sizeof(items));

   398

		nitems = nelems;

   399

	} else {

   400

		nitems = parse_intlist(str, items, lengthof(items));

   401

		if (nitems != nelems)

   402

			return false;

   403

	}

   404

   405

	switch(type) {

   406

	case SDT_INT8 >> 4:

   407

	case SDT_UINT8 >> 4:

   408

		for(i=0; i!=nitems; i++) ((byte*)array)[i] = items[i];

   409

		break;

   410

	case SDT_INT16 >> 4:

   411

	case SDT_UINT16 >> 4:

   412

		for(i=0; i!=nitems; i++) ((uint16*)array)[i] = items[i];

   413

		break;

   414

	case SDT_INT32 >> 4:

   415

	case SDT_UINT32 >> 4:

   416

		for(i=0; i!=nitems; i++) ((uint32*)array)[i] = items[i];

   417

		break;

   418

	default:

   419

		NOT_REACHED();

   420

	}

   421

   422

	return true;

   423

}

   424

   425

static void make_intlist(char *buf, void *array, int nelems, int type)

   426

{

   427

	int i, v = 0;

   428

	byte *p = (byte*)array;

   429

	for(i=0; i!=nelems; i++) {

   430

		switch(type) {

   431

		case SDT_INT8 >> 4: v = *(int8*)p; p += 1; break;

   432

		case SDT_UINT8 >> 4:v = *(byte*)p; p += 1; break;

   433

		case SDT_INT16 >> 4:v = *(int16*)p; p += 2; break;

   434

		case SDT_UINT16 >> 4:v = *(uint16*)p; p += 2; break;

   435

		case SDT_INT32 >> 4:v = *(int32*)p; p += 4; break;

   436

		case SDT_UINT32 >> 4:v = *(uint32*)p; p += 4; break;

   437

		default: NOT_REACHED();

   438

		}

   439

		buf += sprintf(buf, i ? ",%d" : "%d", v);

   440

	}

   441

}

   442

   443

static void make_oneofmany(char *buf, const char *many, int i)

   444

{

   445

	int orig_i = i;

   446

	char c;

   447

   448

	while (--i >= 0) {

   449

		do {

   450

			many++;

   451

			if (many[-1] == 0) {

   452

				sprintf(buf, "%d", orig_i);

   453

				return;

   454

			}

   455

		} while (many[-1] != '|');

   456

	}

   457

   458

	// copy until | or 0

   459

	while ((c=*many++) != 0 && c != '|')

   460

		*buf++ = c;

   461

	*buf = 0;

   462

}

   463

   464

static void make_manyofmany(char *buf, const char *many, uint32 x)

   465

{

   466

	const char *start;

   467

	int i = 0;

   468

	bool init = true;

   469

   470

	do {

   471

		start = many;

   472

		while (*many != 0 && *many != '|') many++;

   473

		if (x & 1) {

   474

			if (!init) *buf++ = '|';

   475

			init = false;

   476

			if (start == many) {

   477

				buf += sprintf(buf, "%d", i);

   478

			} else {

   479

				memcpy(buf, start, many - start);

   480

				buf += many - start;

   481

			}

   482

		}

   483

		if (*many == '|') many++;

   484

	} while (++i, x>>=1);

   485

	*buf = 0;

   486

}

   487

   488

static const void *string_to_val(const SettingDesc *desc, const char *str)

   489

{

   490

	uint32 val;

   491

	char *end;

   492

   493

	switch(desc->flags & 0xF) {

   494

	case SDT_INTX:

   495

		val = strtoul(str, &end, 0);

   496

		if (*end != 0) ShowInfoF("ini: trailing characters at end of setting '%s'", desc->name);

   497

		return (void*)val;

   498

	case SDT_ONEOFMANY: {

   499

		int r = lookup_oneofmany((const char*)desc->b, str, -1);

   500

		if (r != -1) return (void*)r;

   501

		ShowInfoF("ini: invalid value '%s' for '%s'", str, desc->name);

   502

		return 0;

   503

	}

   504

	case SDT_MANYOFMANY: {

   505

		uint32 r = lookup_manyofmany(desc->b, str);

   506

		if (r != (uint32)-1) return (void*)r;

   507

		ShowInfoF("ini: invalid value '%s' for '%s'", str, desc->name);

   508

		return 0;

   509

	}

   510

	case SDT_BOOLX:

   511

		if (!strcmp(str, "true") || !strcmp(str, "on") || !strcmp(str, "1"))

   512

			return (void*)true;

   513

		if (!strcmp(str, "false") || !strcmp(str, "off") || !strcmp(str, "0"))

   514

			return (void*)false;

   515

		ShowInfoF("ini: invalid setting value '%s' for '%s'", str, desc->name);

   516

		break;

   517

   518

	case SDT_STRING:

   519

	case SDT_STRINGBUF:

   520