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Side by Side Diff: openssl/crypto/comp/comp.h

Issue 2072073002: Delete bundled copy of OpenSSL and replace with README. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master
Patch Set: Delete bundled copy of OpenSSL and replace with README. Created 4 years, 6 months ago
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1
2 #ifndef HEADER_COMP_H
3 #define HEADER_COMP_H
4
5 #include <openssl/crypto.h>
6
7 #ifdef __cplusplus
8 extern "C" {
9 #endif
10
11 typedef struct comp_ctx_st COMP_CTX;
12
13 typedef struct comp_method_st
14 {
15 int type; /* NID for compression library */
16 const char *name; /* A text string to identify the library */
17 int (*init)(COMP_CTX *ctx);
18 void (*finish)(COMP_CTX *ctx);
19 int (*compress)(COMP_CTX *ctx,
20 unsigned char *out, unsigned int olen,
21 unsigned char *in, unsigned int ilen);
22 int (*expand)(COMP_CTX *ctx,
23 unsigned char *out, unsigned int olen,
24 unsigned char *in, unsigned int ilen);
25 /* The following two do NOTHING, but are kept for backward compatibility */
26 long (*ctrl)(void);
27 long (*callback_ctrl)(void);
28 } COMP_METHOD;
29
30 struct comp_ctx_st
31 {
32 COMP_METHOD *meth;
33 unsigned long compress_in;
34 unsigned long compress_out;
35 unsigned long expand_in;
36 unsigned long expand_out;
37
38 CRYPTO_EX_DATA ex_data;
39 };
40
41
42 COMP_CTX *COMP_CTX_new(COMP_METHOD *meth);
43 void COMP_CTX_free(COMP_CTX *ctx);
44 int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen,
45 unsigned char *in, int ilen);
46 int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
47 unsigned char *in, int ilen);
48 COMP_METHOD *COMP_rle(void );
49 COMP_METHOD *COMP_zlib(void );
50 void COMP_zlib_cleanup(void);
51
52 #ifdef HEADER_BIO_H
53 #ifdef ZLIB
54 BIO_METHOD *BIO_f_zlib(void);
55 #endif
56 #endif
57
58 /* BEGIN ERROR CODES */
59 /* The following lines are auto generated by the script mkerr.pl. Any changes
60 * made after this point may be overwritten when the script is next run.
61 */
62 void ERR_load_COMP_strings(void);
63
64 /* Error codes for the COMP functions. */
65
66 /* Function codes. */
67 #define COMP_F_BIO_ZLIB_FLUSH 99
68 #define COMP_F_BIO_ZLIB_NEW 100
69 #define COMP_F_BIO_ZLIB_READ 101
70 #define COMP_F_BIO_ZLIB_WRITE 102
71
72 /* Reason codes. */
73 #define COMP_R_ZLIB_DEFLATE_ERROR 99
74 #define COMP_R_ZLIB_INFLATE_ERROR 100
75 #define COMP_R_ZLIB_NOT_SUPPORTED 101
76
77 #ifdef __cplusplus
78 }
79 #endif
80 #endif
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