Rizin
unix-like reverse engineering framework and cli tools
index.h
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1 //
5 //
6 // Author: Lasse Collin
7 //
8 // This file has been put into the public domain.
9 // You can do whatever you want with this file.
10 //
12 
13 #ifndef LZMA_INDEX_H
14 #define LZMA_INDEX_H
15 
16 #include "common.h"
17 
18 
20 #define UNPADDED_SIZE_MIN LZMA_VLI_C(5)
21 
23 #define UNPADDED_SIZE_MAX (LZMA_VLI_MAX & ~LZMA_VLI_C(3))
24 
25 
28 extern uint32_t lzma_index_padding_size(const lzma_index *i);
29 
30 
34 extern void lzma_index_prealloc(lzma_index *i, lzma_vli records);
35 
36 
38 static inline lzma_vli
39 vli_ceil4(lzma_vli vli)
40 {
41  assert(vli <= LZMA_VLI_MAX);
42  return (vli + 3) & ~LZMA_VLI_C(3);
43 }
44 
45 
47 static inline lzma_vli
48 index_size_unpadded(lzma_vli count, lzma_vli index_list_size)
49 {
50  // Index Indicator + Number of Records + List of Records + CRC32
51  return 1 + lzma_vli_size(count) + index_list_size + 4;
52 }
53 
54 
56 static inline lzma_vli
57 index_size(lzma_vli count, lzma_vli index_list_size)
58 {
59  return vli_ceil4(index_size_unpadded(count, index_list_size));
60 }
61 
62 
64 static inline lzma_vli
65 index_stream_size(lzma_vli blocks_size,
66  lzma_vli count, lzma_vli index_list_size)
67 {
68  return LZMA_STREAM_HEADER_SIZE + blocks_size
69  + index_size(count, index_list_size)
70  + LZMA_STREAM_HEADER_SIZE;
71 }
72 
73 #endif
i
lzma_index ** i
Definition: index.h:629
lzma_index_prealloc
void lzma_index_prealloc(lzma_index *i, lzma_vli records)
Definition: index.c:431
index_stream_size
static lzma_vli index_stream_size(lzma_vli blocks_size, lzma_vli count, lzma_vli index_list_size)
Calculate the total size of the Stream.
Definition: index.h:65
vli_ceil4
static lzma_vli vli_ceil4(lzma_vli vli)
Round the variable-length integer to the next multiple of four.
Definition: index.h:39
index_size
static lzma_vli index_size(lzma_vli count, lzma_vli index_list_size)
Calculate the size of the Index field including Index Padding.
Definition: index.h:57
index_size_unpadded
static lzma_vli index_size_unpadded(lzma_vli count, lzma_vli index_list_size)
Calculate the size of the Index field excluding Index Padding.
Definition: index.h:48
lzma_index_padding_size
uint32_t lzma_index_padding_size(const lzma_index *i)
Definition: index.c:593
count
static static sync static getppid static getegid const char static filename char static len const char char static bufsiz static mask static vfork const void static prot static getpgrp const char static swapflags static arg static fd static protocol static who struct sockaddr static addrlen static backlog struct timeval struct timezone static tz const struct iovec static count static mode const void const struct sockaddr static tolen const char static pathname void count
Definition: sflib.h:98
assert
assert(limit<=UINT32_MAX/2)
uint32_t
unsigned int uint32_t
Definition: sftypes.h:29
LZMA_STREAM_HEADER_SIZE
#define LZMA_STREAM_HEADER_SIZE
Size of Stream Header and Stream Footer.
Definition: stream_flags.h:27
lzma_index_s
Definition: index.c:145
common.h
Definitions common to the whole liblzma library.
lzma_vli
uint64_t lzma_vli
Variable-length integer type.
Definition: vli.h:63
LZMA_VLI_C
#define LZMA_VLI_C(n)
VLI constant suffix.
Definition: vli.h:49
LZMA_VLI_MAX
#define LZMA_VLI_MAX
Maximum supported value of a variable-length integer.
Definition: vli.h:34