diff options
Diffstat (limited to 'src/lib/libcrypto/comp/c_zlib.c')
-rw-r--r-- | src/lib/libcrypto/comp/c_zlib.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/src/lib/libcrypto/comp/c_zlib.c b/src/lib/libcrypto/comp/c_zlib.c deleted file mode 100644 index 6684ab4841..0000000000 --- a/src/lib/libcrypto/comp/c_zlib.c +++ /dev/null | |||
@@ -1,133 +0,0 @@ | |||
1 | #include <stdio.h> | ||
2 | #include <stdlib.h> | ||
3 | #include <string.h> | ||
4 | #include <openssl/objects.h> | ||
5 | #include <openssl/comp.h> | ||
6 | |||
7 | COMP_METHOD *COMP_zlib(void ); | ||
8 | |||
9 | #ifndef ZLIB | ||
10 | |||
11 | static COMP_METHOD zlib_method={ | ||
12 | NID_undef, | ||
13 | "(null)", | ||
14 | NULL, | ||
15 | NULL, | ||
16 | NULL, | ||
17 | NULL, | ||
18 | NULL, | ||
19 | }; | ||
20 | |||
21 | #else | ||
22 | |||
23 | #include <zlib.h> | ||
24 | |||
25 | static int zlib_compress_block(COMP_CTX *ctx, unsigned char *out, | ||
26 | unsigned int olen, unsigned char *in, unsigned int ilen); | ||
27 | static int zlib_expand_block(COMP_CTX *ctx, unsigned char *out, | ||
28 | unsigned int olen, unsigned char *in, unsigned int ilen); | ||
29 | |||
30 | static int zz_uncompress(Bytef *dest, uLongf *destLen, const Bytef *source, | ||
31 | uLong sourceLen); | ||
32 | |||
33 | static COMP_METHOD zlib_method={ | ||
34 | NID_zlib_compression, | ||
35 | LN_zlib_compression, | ||
36 | NULL, | ||
37 | NULL, | ||
38 | zlib_compress_block, | ||
39 | zlib_expand_block, | ||
40 | NULL, | ||
41 | }; | ||
42 | |||
43 | static int zlib_compress_block(COMP_CTX *ctx, unsigned char *out, | ||
44 | unsigned int olen, unsigned char *in, unsigned int ilen) | ||
45 | { | ||
46 | unsigned long l; | ||
47 | int i; | ||
48 | int clear=1; | ||
49 | |||
50 | if (ilen > 128) | ||
51 | { | ||
52 | out[0]=1; | ||
53 | l=olen-1; | ||
54 | i=compress(&(out[1]),&l,in,(unsigned long)ilen); | ||
55 | if (i != Z_OK) | ||
56 | return(-1); | ||
57 | if (ilen > l) | ||
58 | { | ||
59 | clear=0; | ||
60 | l++; | ||
61 | } | ||
62 | } | ||
63 | if (clear) | ||
64 | { | ||
65 | out[0]=0; | ||
66 | memcpy(&(out[1]),in,ilen); | ||
67 | l=ilen+1; | ||
68 | } | ||
69 | fprintf(stderr,"compress(%4d)->%4d %s\n",ilen,(int)l,(clear)?"clear":"zlib"); | ||
70 | return((int)l); | ||
71 | } | ||
72 | |||
73 | static int zlib_expand_block(COMP_CTX *ctx, unsigned char *out, | ||
74 | unsigned int olen, unsigned char *in, unsigned int ilen) | ||
75 | { | ||
76 | unsigned long l; | ||
77 | int i; | ||
78 | |||
79 | if (in[0]) | ||
80 | { | ||
81 | l=olen; | ||
82 | i=zz_uncompress(out,&l,&(in[1]),(unsigned long)ilen-1); | ||
83 | if (i != Z_OK) | ||
84 | return(-1); | ||
85 | } | ||
86 | else | ||
87 | { | ||
88 | memcpy(out,&(in[1]),ilen-1); | ||
89 | l=ilen-1; | ||
90 | } | ||
91 | fprintf(stderr,"expand (%4d)->%4d %s\n",ilen,(int)l,in[0]?"zlib":"clear"); | ||
92 | return((int)l); | ||
93 | } | ||
94 | |||
95 | static int zz_uncompress (Bytef *dest, uLongf *destLen, const Bytef *source, | ||
96 | uLong sourceLen) | ||
97 | { | ||
98 | z_stream stream; | ||
99 | int err; | ||
100 | |||
101 | stream.next_in = (Bytef*)source; | ||
102 | stream.avail_in = (uInt)sourceLen; | ||
103 | /* Check for source > 64K on 16-bit machine: */ | ||
104 | if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; | ||
105 | |||
106 | stream.next_out = dest; | ||
107 | stream.avail_out = (uInt)*destLen; | ||
108 | if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; | ||
109 | |||
110 | stream.zalloc = (alloc_func)0; | ||
111 | stream.zfree = (free_func)0; | ||
112 | |||
113 | err = inflateInit(&stream); | ||
114 | if (err != Z_OK) return err; | ||
115 | |||
116 | err = inflate(&stream, Z_FINISH); | ||
117 | if (err != Z_STREAM_END) { | ||
118 | inflateEnd(&stream); | ||
119 | return err; | ||
120 | } | ||
121 | *destLen = stream.total_out; | ||
122 | |||
123 | err = inflateEnd(&stream); | ||
124 | return err; | ||
125 | } | ||
126 | |||
127 | #endif | ||
128 | |||
129 | COMP_METHOD *COMP_zlib(void) | ||
130 | { | ||
131 | return(&zlib_method); | ||
132 | } | ||
133 | |||