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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 "spritecache.h"

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#include "string.h"

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#include "variables.h"

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#include "table/currency.h"

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#include "network.h"

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#include "settings.h"

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    13

typedef struct IniFile IniFile;

    14

typedef struct IniItem IniItem;

    15

typedef struct IniGroup IniGroup;

    16

typedef struct SettingsMemoryPool SettingsMemoryPool;

    17

    18

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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    23

struct SettingsMemoryPool {

    24

	uint pos,size;

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	SettingsMemoryPool *next;

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	byte mem[1];

    27

};

    28

    29

static SettingsMemoryPool *pool_new(uint minsize)

    30

{

    31

	SettingsMemoryPool *p;

    32

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

    33

    34

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

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	p->pos = 0;

    36

	p->size = minsize;

    37

	p->next = NULL;

    38

	return p;

    39

}

    40

    41

static void pool_init(SettingsMemoryPool **pool)

    42

{

    43

	*pool = pool_new(0);

    44

}

    45

    46

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

    47

{

    48

	uint pos;

    49

	SettingsMemoryPool *p = *pool;

    50

    51

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

    52

    53

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

    54

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

    55

		p = p->next;

    56

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

    57

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

    58

		SettingsMemoryPool *n = pool_new(size);

    59

		*pool = n;

    60

		n->next = p;

    61

		p = n;

    62

	}

    63

    64

	pos = p->pos;

    65

	p->pos += size;

    66

	return p->mem + pos;

    67

}

    68

    69

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

    70

{

    71

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

    72

	p[size] = 0;

    73

	memcpy(p, mem, size);

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	return p;

    75

}

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    77

static void pool_free(SettingsMemoryPool **pool)

    78

{

    79

	SettingsMemoryPool *p = *pool, *n;

    80

	*pool = NULL;

    81

	while (p) {

    82

		n = p->next;

    83

		free(p);

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		p = n;

    85

	}

    86

}

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    88

// structs describing the ini format.

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struct IniItem {

    90

	char *name;

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	char *value;

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	char *comment;

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	IniItem *next;

    94

};

    95

    96

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;

   100

	IniGroup *next;

   101

	IniFile *ini;

   102

	IniGroupType type; // type of group

   103

};

   104

   105

struct IniFile {

   106

	SettingsMemoryPool *pool;

   107

	IniGroup *group, **last_group;

   108

	char *comment; // last comment in file

   109

};

   110

   111

// allocate an inifile object

   112

static IniFile *ini_alloc(void)

   113

{

   114

	IniFile *ini;

   115

	SettingsMemoryPool *pool;

   116

	pool_init(&pool);

   117

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

   118

	ini->pool = pool;

   119

	ini->group = NULL;

   120

	ini->last_group = &ini->group;

   121

	ini->comment = NULL;

   122

	return ini;

   123

}

   124

   125

// allocate an ini group object

   126

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

   127

{

   128

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

   129

	grp->ini = ini;

   130

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

   131

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

   132

		grp->type = IGT_LIST;

   133

	else

   134

		grp->type = IGT_VARIABLES;

   135

	grp->next = NULL;

   136

	grp->item = NULL;

   137

	grp->comment = NULL;

   138

	grp->last_item = &grp->item;

   139

	*ini->last_group = grp;

   140

	ini->last_group = &grp->next;

   141

	return grp;

   142

}

   143

   144

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

   145

{

   146

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

   147

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

   148

	item->next = NULL;

   149

	item->comment = NULL;

   150

	item->value = NULL;

   151

	*group->last_item = item;

   152

	group->last_item = &item->next;

   153

	return item;

   154

}

   155

   156

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

   157

static IniFile *ini_load(const char *filename)

   158

{

   159

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

   160

	FILE *in;

   161

	IniFile *ini;

   162

	IniGroup *group = NULL;

   163

	IniItem *item;

   164

   165

	char *comment = NULL;

   166

	uint comment_size = 0;

   167

	uint comment_alloc = 0;

   168

   169

	ini = ini_alloc();

   170

   171

	in = fopen(filename, "r");

   172

	if (in == NULL) return ini;

   173

   174

	// for each line in the file

   175

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

   176

   177

		// trim whitespace from the left side

   178

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

   179

   180

		// trim whitespace from right side.

   181

		e = s + strlen(s);

   182

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

   183

		*e = 0;

   184

   185

		// skip comments and empty lines

   186

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

   187

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

   188

			uint a = comment_alloc;

   189

			uint pos;

   190

			// add to comment

   191

			if (ns > a) {

   192

				a = max(a, 128);

   193

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

   194

				comment = realloc(comment, comment_alloc = a);

   195

			}

   196

			pos = comment_size;

   197

			comment_size += (e - s + 1);

   198

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

   199

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

   200

			continue;

   201

		}

   202

   203

		// it's a group?

   204

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

   205

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

   206

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

   207

			else

   208

				e--;

   209

			s++; // skip [

   210

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

   211

			if (comment_size) {

   212

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

   213

				comment_size = 0;

   214

			}

   215

		} else if (group) {

   216

			// find end of keyname

   217

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

   218

   219

			// it's an item in an existing group

   220

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

   221

			if (comment_size) {

   222

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

   223

				comment_size = 0;

   224

			}

   225

   226

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

   227

			if( group->type == IGT_LIST ) {

   228

				item->value = item->name;

   229

				continue;

   230

			}

   231

   232

			// find start of parameter

   233

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

   234

   235

   236

			// remove starting quotation marks

   237

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

   238

			// remove ending quotation marks

   239

			e = t + strlen(t);

   240

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

   241

			*e = 0;

   242

   243

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

   244

		} else {

   245

			// it's an orphan item

   246

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

   247

		}

   248

	}

   249

   250

	if (comment_size) {

   251

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

   252

		comment_size = 0;

   253

	}

   254

   255

	free(comment);

   256

	fclose(in);

   257

   258

	return ini;

   259

}

   260

   261

// lookup a group or make a new one

   262

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

   263

{

   264

	IniGroup *group;

   265

   266

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

   267

   268

	// does it exist already?

   269

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

   270

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

   271

			return group;

   272

   273

	// otherwise make a new one

   274

	group = ini_group_alloc(ini, name, len);

   275

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

   276

	return group;

   277

}

   278

   279

// lookup an item or make a new one

   280

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

   281

{

   282

	IniItem *item;

   283

	uint len = strlen(name);

   284

   285

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

   286

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

   287

			return item;

   288

   289

	if (!create) return NULL;

   290

   291

	// otherwise make a new one

   292

	item = ini_item_alloc(group, name, len);

   293

	return item;

   294

}

   295

   296

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

   297

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

   298

{

   299

	FILE *f;

   300

	IniGroup *group;

   301

	IniItem *item;

   302

   303

	f = fopen(filename, "w");

   304

	if (f == NULL) return false;

   305

   306

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

   307

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

   308

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

   309

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

   310

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

   311

			if(group->type==IGT_LIST)

   312

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

   313

			else

   314

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

   315

		}

   316

	}

   317

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

   318

   319

	fclose(f);

   320

	return true;

   321

}

   322

   323

static void ini_free(IniFile *ini)

   324

{

   325

	pool_free(&ini->pool);

   326

}

   327

   328

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

   329

{

   330

	const char *s;

   331

	int idx;

   332

   333

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

   334

   335

	// check if it's an integer

   336

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

   337

		return strtoul(one, NULL, 0);

   338

   339

	idx = 0;

   340

	for(;;) {

   341

		// find end of item

   342

		s = many;

   343

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

   344

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

   345

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

   346

		many = s + 1;

   347

		idx++;

   348

	}

   349

}

   350

   351

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

   352

{

   353

	const char *s;

   354

	int r;

   355

	uint32 res = 0;

   356

   357

	for(;;) {

   358

		// skip "whitespace"

   359

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

   360

		if (*str == 0) break;

   361

   362

		s = str;

   363

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

   364

   365

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

   366

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

   367

   368

		res |= (1 << r);

   369

		if (*s == 0) break;

   370

		str = s + 1;

   371

	}

   372

	return res;

   373

}

   374

   375

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

   376

{

   377

	int n = 0, v;

   378

	char *end;

   379

   380

	for(;;) {

   381

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

   382

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

   383

		p = end;

   384

		items[n++] = v;

   385

		if (*p == 0) break;

   386

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

   387

		p++;

   388

	}

   389

   390

	return n;

   391

}

   392

   393

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

   394

{

   395

	int items[64];

   396

	int i,nitems;

   397

   398

	if (str == NULL) {

   399

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

   400

		nitems = nelems;

   401

	} else {

   402

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

   403

		if (nitems != nelems)

   404

			return false;

   405

	}

   406

   407

	switch(type) {

   408

	case SDT_INT8 >> 4:

   409

	case SDT_UINT8 >> 4:

   410

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

   411

		break;

   412

	case SDT_INT16 >> 4:

   413

	case SDT_UINT16 >> 4:

   414

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

   415

		break;

   416

	case SDT_INT32 >> 4:

   417

	case SDT_UINT32 >> 4:

   418

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

   419

		break;

   420

	default:

   421

		NOT_REACHED();

   422

	}

   423

   424

	return true;

   425

}

   426

   427

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

   428

{

   429

	int i, v = 0;

   430

	byte *p = (byte*)array;

   431

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

   432

		switch(type) {

   433

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

   434

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

   435

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

   436

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

   437

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

   438

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

   439

		default: NOT_REACHED();

   440

		}

   441

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

   442

	}

   443

}

   444

   445

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

   446

{

   447

	int orig_i = i;

   448

	char c;

   449

   450

	while (--i >= 0) {

   451

		do {

   452

			many++;

   453

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

   454

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

   455

				return;

   456

			}

   457

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

   458

	}

   459

   460

	// copy until | or 0

   461

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

   462

		*buf++ = c;

   463

	*buf = 0;

   464

}

   465

   466

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

   467

{

   468

	const char *start;

   469

	int i = 0;

   470

	bool init = true;

   471

   472

	do {

   473

		start = many;

   474

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

   475

		if (x & 1) {

   476

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

   477

			init = false;

   478

			if (start == many) {

   479

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

   480

			} else {

   481

				memcpy(buf, start, many - start);

   482

				buf += many - start;

   483

			}

   484

		}

   485

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

   486

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

   487

	*buf = 0;

   488

}

   489

   490

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

   491

{

   492

	uint32 val;

   493

	char *end;

   494

   495

	switch(desc->flags & 0xF) {

   496

	case SDT_INTX:

   497

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

   498

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

   499

		return (void*)val;

   500

	case SDT_ONEOFMANY: {

   501

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

   502

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

   503

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

   504

		return 0;

   505

	}

   506

	case SDT_MANYOFMANY: {

   507

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

   508

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

   509

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

   510

		return 0;

   511

	}

   512

	case SDT_BOOLX:

   513

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

   514

			return (void*)true;

   515

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

   516

			return (void*)false;

   517

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

   518

		break;

   519