Diffstat (limited to 'pwmanager/libcrypt/zlib/infutil.h') (more/less context) (ignore whitespace changes)
-rw-r--r-- | pwmanager/libcrypt/zlib/infutil.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/pwmanager/libcrypt/zlib/infutil.h b/pwmanager/libcrypt/zlib/infutil.h new file mode 100644 index 0000000..4401df8 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/infutil.h | |||
@@ -0,0 +1,98 @@ | |||
1 | /* infutil.h -- types and macros common to blocks and codes | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* WARNING: this file should *not* be used by applications. It is | ||
7 | part of the implementation of the compression library and is | ||
8 | subject to change. Applications should only use zlib.h. | ||
9 | */ | ||
10 | |||
11 | #ifndef _INFUTIL_H | ||
12 | #define _INFUTIL_H | ||
13 | |||
14 | typedef enum { | ||
15 | TYPE, /* get type bits (3, including end bit) */ | ||
16 | LENS, /* get lengths for stored */ | ||
17 | STORED, /* processing stored block */ | ||
18 | TABLE, /* get table lengths */ | ||
19 | BTREE, /* get bit lengths tree for a dynamic block */ | ||
20 | DTREE, /* get length, distance trees for a dynamic block */ | ||
21 | CODES, /* processing fixed or dynamic block */ | ||
22 | DRY, /* output remaining window bytes */ | ||
23 | DONE, /* finished last block, done */ | ||
24 | BAD} /* got a data error--stuck here */ | ||
25 | inflate_block_mode; | ||
26 | |||
27 | /* inflate blocks semi-private state */ | ||
28 | struct inflate_blocks_state { | ||
29 | |||
30 | /* mode */ | ||
31 | inflate_block_mode mode; /* current inflate_block mode */ | ||
32 | |||
33 | /* mode dependent information */ | ||
34 | union { | ||
35 | uInt left; /* if STORED, bytes left to copy */ | ||
36 | struct { | ||
37 | uInt table; /* table lengths (14 bits) */ | ||
38 | uInt index; /* index into blens (or border) */ | ||
39 | uIntf *blens; /* bit lengths of codes */ | ||
40 | uInt bb; /* bit length tree depth */ | ||
41 | inflate_huft *tb; /* bit length decoding tree */ | ||
42 | } trees; /* if DTREE, decoding info for trees */ | ||
43 | struct { | ||
44 | inflate_codes_statef | ||
45 | *codes; | ||
46 | } decode; /* if CODES, current state */ | ||
47 | } sub; /* submode */ | ||
48 | uInt last; /* true if this block is the last block */ | ||
49 | |||
50 | /* mode independent information */ | ||
51 | uInt bitk; /* bits in bit buffer */ | ||
52 | uLong bitb; /* bit buffer */ | ||
53 | inflate_huft *hufts; /* single malloc for tree space */ | ||
54 | Bytef *window; /* sliding window */ | ||
55 | Bytef *end; /* one byte after sliding window */ | ||
56 | Bytef *read; /* window read pointer */ | ||
57 | Bytef *write; /* window write pointer */ | ||
58 | check_func checkfn; /* check function */ | ||
59 | uLong check; /* check on output */ | ||
60 | |||
61 | }; | ||
62 | |||
63 | |||
64 | /* defines for inflate input/output */ | ||
65 | /* update pointers and return */ | ||
66 | #define UPDBITS {s->bitb=b;s->bitk=k;} | ||
67 | #define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;} | ||
68 | #define UPDOUT {s->write=q;} | ||
69 | #define UPDATE {UPDBITS UPDIN UPDOUT} | ||
70 | #define LEAVE {UPDATE return inflate_flush(s,z,r);} | ||
71 | /* get bytes and bits */ | ||
72 | #define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;} | ||
73 | #define NEEDBYTE {if(n)r=Z_OK;else LEAVE} | ||
74 | #define NEXTBYTE (n--,*p++) | ||
75 | #define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<<k;k+=8;}} | ||
76 | #define DUMPBITS(j) {b>>=(j);k-=(j);} | ||
77 | /* output bytes */ | ||
78 | #define WAVAIL (uInt)(q<s->read?s->read-q-1:s->end-q) | ||
79 | #define LOADOUT {q=s->write;m=(uInt)WAVAIL;} | ||
80 | #define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=(uInt)WAVAIL;}} | ||
81 | #define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT} | ||
82 | #define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;} | ||
83 | #define OUTBYTE(a) {*q++=(Byte)(a);m--;} | ||
84 | /* load local pointers */ | ||
85 | #define LOAD {LOADIN LOADOUT} | ||
86 | |||
87 | /* masks for lower bits (size given to avoid silly warnings with Visual C++) */ | ||
88 | extern uInt inflate_mask[17]; | ||
89 | |||
90 | /* copy as much as possible from the sliding window to the output area */ | ||
91 | extern int inflate_flush OF(( | ||
92 | inflate_blocks_statef *, | ||
93 | z_streamp , | ||
94 | int)); | ||
95 | |||
96 | struct internal_state {int dummy;}; /* for buggy compilers */ | ||
97 | |||
98 | #endif | ||