This file is indexed.

/usr/include/msgpack/unpack_template.h is in libmsgpack-dev 0.5.7-3ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
/*
 * MessagePack unpacking routine template
 *
 * Copyright (C) 2008-2010 FURUHASHI Sadayuki
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

#ifndef msgpack_unpack_func
#error msgpack_unpack_func template is not defined
#endif

#ifndef msgpack_unpack_callback
#error msgpack_unpack_callback template is not defined
#endif

#ifndef msgpack_unpack_struct
#error msgpack_unpack_struct template is not defined
#endif

#ifndef msgpack_unpack_struct_decl
#define msgpack_unpack_struct_decl(name) msgpack_unpack_struct(name)
#endif

#ifndef msgpack_unpack_object
#error msgpack_unpack_object type is not defined
#endif

#ifndef msgpack_unpack_user
#error msgpack_unpack_user type is not defined
#endif

#ifndef USE_CASE_RANGE
#if !defined(_MSC_VER)
#define USE_CASE_RANGE
#endif
#endif

msgpack_unpack_struct_decl(_stack) {
	msgpack_unpack_object obj;
	size_t count;
	unsigned int ct;
	msgpack_unpack_object map_key;
};

msgpack_unpack_struct_decl(_context) {
	msgpack_unpack_user user;
	unsigned int cs;
	unsigned int trail;
	unsigned int top;
	/*
	msgpack_unpack_struct(_stack)* stack;
	unsigned int stack_size;
	msgpack_unpack_struct(_stack) embed_stack[MSGPACK_EMBED_STACK_SIZE];
	*/
	msgpack_unpack_struct(_stack) stack[MSGPACK_EMBED_STACK_SIZE];
};


msgpack_unpack_func(void, _init)(msgpack_unpack_struct(_context)* ctx)
{
	ctx->cs = CS_HEADER;
	ctx->trail = 0;
	ctx->top = 0;
	/*
	ctx->stack = ctx->embed_stack;
	ctx->stack_size = MSGPACK_EMBED_STACK_SIZE;
	*/
	ctx->stack[0].obj = msgpack_unpack_callback(_root)(&ctx->user);
}

/*
msgpack_unpack_func(void, _destroy)(msgpack_unpack_struct(_context)* ctx)
{
	if(ctx->stack_size != MSGPACK_EMBED_STACK_SIZE) {
		free(ctx->stack);
	}
}
*/

msgpack_unpack_func(msgpack_unpack_object, _data)(msgpack_unpack_struct(_context)* ctx)
{
	return (ctx)->stack[0].obj;
}


msgpack_unpack_func(int, _execute)(msgpack_unpack_struct(_context)* ctx, const char* data, size_t len, size_t* off)
{
	assert(len >= *off);

	const unsigned char* p = (unsigned char*)data + *off;
	const unsigned char* const pe = (unsigned char*)data + len;
	const void* n = NULL;

	unsigned int trail = ctx->trail;
	unsigned int cs = ctx->cs;
	unsigned int top = ctx->top;
	msgpack_unpack_struct(_stack)* stack = ctx->stack;
	/*
	unsigned int stack_size = ctx->stack_size;
	*/
	msgpack_unpack_user* user = &ctx->user;

	msgpack_unpack_object obj;
	msgpack_unpack_struct(_stack)* c = NULL;

	int ret;

#define push_simple_value(func) \
	if(msgpack_unpack_callback(func)(user, &obj) < 0) { goto _failed; } \
	goto _push
#define push_fixed_value(func, arg) \
	if(msgpack_unpack_callback(func)(user, arg, &obj) < 0) { goto _failed; } \
	goto _push
#define push_variable_value(func, base, pos, len) \
	if(msgpack_unpack_callback(func)(user, \
		(const char*)base, (const char*)pos, len, &obj) < 0) { goto _failed; } \
	goto _push

#define again_fixed_trail(_cs, trail_len) \
	trail = trail_len; \
	cs = _cs; \
	goto _fixed_trail_again
#define again_fixed_trail_if_zero(_cs, trail_len, ifzero) \
	trail = trail_len; \
	if(trail == 0) { goto ifzero; } \
	cs = _cs; \
	goto _fixed_trail_again

#define start_container(func, count_, ct_) \
	if(top >= MSGPACK_EMBED_STACK_SIZE) { goto _failed; } /* FIXME */ \
	if(msgpack_unpack_callback(func)(user, count_, &stack[top].obj) < 0) { goto _failed; } \
	if((count_) == 0) { obj = stack[top].obj; goto _push; } \
	stack[top].ct = ct_; \
	stack[top].count = count_; \
	++top; \
	/*printf("container %d count %d stack %d\n",stack[top].obj,count_,top);*/ \
	/*printf("stack push %d\n", top);*/ \
	/* FIXME \
	if(top >= stack_size) { \
		if(stack_size == MSGPACK_EMBED_STACK_SIZE) { \
			size_t csize = sizeof(msgpack_unpack_struct(_stack)) * MSGPACK_EMBED_STACK_SIZE; \
			size_t nsize = csize * 2; \
			msgpack_unpack_struct(_stack)* tmp = (msgpack_unpack_struct(_stack)*)malloc(nsize); \
			if(tmp == NULL) { goto _failed; } \
			memcpy(tmp, ctx->stack, csize); \
			ctx->stack = stack = tmp; \
			ctx->stack_size = stack_size = MSGPACK_EMBED_STACK_SIZE * 2; \
		} else { \
			size_t nsize = sizeof(msgpack_unpack_struct(_stack)) * ctx->stack_size * 2; \
			msgpack_unpack_struct(_stack)* tmp = (msgpack_unpack_struct(_stack)*)realloc(ctx->stack, nsize); \
			if(tmp == NULL) { goto _failed; } \
			ctx->stack = stack = tmp; \
			ctx->stack_size = stack_size = stack_size * 2; \
		} \
	} \
	*/ \
	goto _header_again

#define NEXT_CS(p) \
	((unsigned int)*p & 0x1f)

#ifdef USE_CASE_RANGE
#define SWITCH_RANGE_BEGIN     switch(*p) {
#define SWITCH_RANGE(FROM, TO) case FROM ... TO:
#define SWITCH_RANGE_DEFAULT   default:
#define SWITCH_RANGE_END       }
#else
#define SWITCH_RANGE_BEGIN     { if(0) {
#define SWITCH_RANGE(FROM, TO) } else if(FROM <= *p && *p <= TO) {
#define SWITCH_RANGE_DEFAULT   } else {
#define SWITCH_RANGE_END       } }
#endif

	if(p == pe) { goto _out; }
	do {
		switch(cs) {
		case CS_HEADER:
			SWITCH_RANGE_BEGIN
			SWITCH_RANGE(0x00, 0x7f)  // Positive Fixnum
				push_fixed_value(_uint8, *(uint8_t*)p);
			SWITCH_RANGE(0xe0, 0xff)  // Negative Fixnum
				push_fixed_value(_int8, *(int8_t*)p);
			SWITCH_RANGE(0xc0, 0xdf)  // Variable
				switch(*p) {
				case 0xc0:  // nil
					push_simple_value(_nil);
				//case 0xc1:  // string
				//	again_terminal_trail(NEXT_CS(p), p+1);
				case 0xc2:  // false
					push_simple_value(_false);
				case 0xc3:  // true
					push_simple_value(_true);
				//case 0xc4:
				//case 0xc5:
				//case 0xc6:
				//case 0xc7:
				//case 0xc8:
				//case 0xc9:
				case 0xca:  // float
				case 0xcb:  // double
				case 0xcc:  // unsigned int  8
				case 0xcd:  // unsigned int 16
				case 0xce:  // unsigned int 32
				case 0xcf:  // unsigned int 64
				case 0xd0:  // signed int  8
				case 0xd1:  // signed int 16
				case 0xd2:  // signed int 32
				case 0xd3:  // signed int 64
					again_fixed_trail(NEXT_CS(p), 1 << (((unsigned int)*p) & 0x03));
				//case 0xd4:
				//case 0xd5:
				//case 0xd6:  // big integer 16
				//case 0xd7:  // big integer 32
				//case 0xd8:  // big float 16
				//case 0xd9:  // big float 32
				case 0xda:  // raw 16
				case 0xdb:  // raw 32
				case 0xdc:  // array 16
				case 0xdd:  // array 32
				case 0xde:  // map 16
				case 0xdf:  // map 32
					again_fixed_trail(NEXT_CS(p), 2 << (((unsigned int)*p) & 0x01));
				default:
					goto _failed;
				}
			SWITCH_RANGE(0xa0, 0xbf)  // FixRaw
				again_fixed_trail_if_zero(ACS_RAW_VALUE, ((unsigned int)*p & 0x1f), _raw_zero);
			SWITCH_RANGE(0x90, 0x9f)  // FixArray
				start_container(_array, ((unsigned int)*p) & 0x0f, CT_ARRAY_ITEM);
			SWITCH_RANGE(0x80, 0x8f)  // FixMap
				start_container(_map, ((unsigned int)*p) & 0x0f, CT_MAP_KEY);

			SWITCH_RANGE_DEFAULT
				goto _failed;
			SWITCH_RANGE_END
			// end CS_HEADER


		_fixed_trail_again:
			++p;

		default:
			if((size_t)(pe - p) < trail) { goto _out; }
			n = p;  p += trail - 1;
			switch(cs) {
			//case CS_
			//case CS_
			case CS_FLOAT: {
					union { uint32_t i; float f; } mem;
					mem.i = _msgpack_load32(uint32_t,n);
					push_fixed_value(_float, mem.f); }
			case CS_DOUBLE: {
					union { uint64_t i; double f; } mem;
					mem.i = _msgpack_load64(uint64_t,n);
					push_fixed_value(_double, mem.f); }
			case CS_UINT_8:
				push_fixed_value(_uint8, *(uint8_t*)n);
			case CS_UINT_16:
				push_fixed_value(_uint16, _msgpack_load16(uint16_t,n));
			case CS_UINT_32:
				push_fixed_value(_uint32, _msgpack_load32(uint32_t,n));
			case CS_UINT_64:
				push_fixed_value(_uint64, _msgpack_load64(uint64_t,n));

			case CS_INT_8:
				push_fixed_value(_int8, *(int8_t*)n);
			case CS_INT_16:
				push_fixed_value(_int16, _msgpack_load16(int16_t,n));
			case CS_INT_32:
				push_fixed_value(_int32, _msgpack_load32(int32_t,n));
			case CS_INT_64:
				push_fixed_value(_int64, _msgpack_load64(int64_t,n));

			//case CS_
			//case CS_
			//case CS_BIG_INT_16:
			//	again_fixed_trail_if_zero(ACS_BIG_INT_VALUE, _msgpack_load16(uint16_t,n), _big_int_zero);
			//case CS_BIG_INT_32:
			//	again_fixed_trail_if_zero(ACS_BIG_INT_VALUE, _msgpack_load32(uint32_t,n), _big_int_zero);
			//case ACS_BIG_INT_VALUE:
			//_big_int_zero:
			//	// FIXME
			//	push_variable_value(_big_int, data, n, trail);

			//case CS_BIG_FLOAT_16:
			//	again_fixed_trail_if_zero(ACS_BIG_FLOAT_VALUE, _msgpack_load16(uint16_t,n), _big_float_zero);
			//case CS_BIG_FLOAT_32:
			//	again_fixed_trail_if_zero(ACS_BIG_FLOAT_VALUE, _msgpack_load32(uint32_t,n), _big_float_zero);
			//case ACS_BIG_FLOAT_VALUE:
			//_big_float_zero:
			//	// FIXME
			//	push_variable_value(_big_float, data, n, trail);

			case CS_RAW_16:
				again_fixed_trail_if_zero(ACS_RAW_VALUE, _msgpack_load16(uint16_t,n), _raw_zero);
			case CS_RAW_32:
				again_fixed_trail_if_zero(ACS_RAW_VALUE, _msgpack_load32(uint32_t,n), _raw_zero);
			case ACS_RAW_VALUE:
			_raw_zero:
				push_variable_value(_raw, data, n, trail);

			case CS_ARRAY_16:
				start_container(_array, _msgpack_load16(uint16_t,n), CT_ARRAY_ITEM);
			case CS_ARRAY_32:
				/* FIXME security guard */
				start_container(_array, _msgpack_load32(uint32_t,n), CT_ARRAY_ITEM);

			case CS_MAP_16:
				start_container(_map, _msgpack_load16(uint16_t,n), CT_MAP_KEY);
			case CS_MAP_32:
				/* FIXME security guard */
				start_container(_map, _msgpack_load32(uint32_t,n), CT_MAP_KEY);

			default:
				goto _failed;
			}
		}

_push:
	if(top == 0) { goto _finish; }
	c = &stack[top-1];
	switch(c->ct) {
	case CT_ARRAY_ITEM:
		if(msgpack_unpack_callback(_array_item)(user, &c->obj, obj) < 0) { goto _failed; }
		if(--c->count == 0) {
			obj = c->obj;
			--top;
			/*printf("stack pop %d\n", top);*/
			goto _push;
		}
		goto _header_again;
	case CT_MAP_KEY:
		c->map_key = obj;
		c->ct = CT_MAP_VALUE;
		goto _header_again;
	case CT_MAP_VALUE:
		if(msgpack_unpack_callback(_map_item)(user, &c->obj, c->map_key, obj) < 0) { goto _failed; }
		if(--c->count == 0) {
			obj = c->obj;
			--top;
			/*printf("stack pop %d\n", top);*/
			goto _push;
		}
		c->ct = CT_MAP_KEY;
		goto _header_again;

	default:
		goto _failed;
	}

_header_again:
		cs = CS_HEADER;
		++p;
	} while(p != pe);
	goto _out;


_finish:
	stack[0].obj = obj;
	++p;
	ret = 1;
	/*printf("-- finish --\n"); */
	goto _end;

_failed:
	/*printf("** FAILED **\n"); */
	ret = -1;
	goto _end;

_out:
	ret = 0;
	goto _end;

_end:
	ctx->cs = cs;
	ctx->trail = trail;
	ctx->top = top;
	*off = p - (const unsigned char*)data;

	return ret;
}


#undef msgpack_unpack_func
#undef msgpack_unpack_callback
#undef msgpack_unpack_struct
#undef msgpack_unpack_object
#undef msgpack_unpack_user

#undef push_simple_value
#undef push_fixed_value
#undef push_variable_value
#undef again_fixed_trail
#undef again_fixed_trail_if_zero
#undef start_container

#undef NEXT_CS