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Initial revision

    1: /*************************************************************************
    2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
    3: *  by Michael Pounov <misho@openbsd-bg.org>
    4: *
    5: * $Author: misho $
    6: * $Id: aitsync.h,v 1.1 2010/03/24 16:00:15 misho Exp $
    7: *
    8: *************************************************************************/
    9: #ifndef __AITSYNC_H
   10: #define __AITSYNC_H
   11: 
   12: 
   13: #include <sys/types.h>
   14: #include <openssl/md5.h>
   15: 
   16: 
   17: #define CHUNK_MAX	2048
   18: #define DLTSYNC_MAGIC	0xD34DC0D3
   19: #define SIGSYNC_MAGIC	0xDEADBEEF
   20: 
   21: 
   22: typedef struct tagSyncChunk {
   23: 	u_int sc_magic;
   24: 	u_long sc_id;
   25: 	off_t sc_off;
   26: 	size_t sc_len;
   27: 	u_int sc_roll;
   28: 	u_char sc_cksum[MD5_DIGEST_LENGTH];
   29: } sync_chunk_t;
   30: 
   31: 
   32: // -------------------------------------------------------
   33: // sync_GetErrno() Get error code of last operation
   34: inline int sync_GetErrno();
   35: // sync_GetError() Get error text of last operation
   36: inline const char *sync_GetError();
   37: // -------------------------------------------------------
   38: 
   39: /*
   40:  * syncSignature() Calculate and create signature for diff
   41:  * @csInput = Input patched file name for calculating check sums
   42:  * @csSig = Output Signature file name
   43:  * return: -1 error, 0 ok
   44:  */
   45: int syncSignature(const char *csInput, const char *csSig);
   46: 
   47: /*
   48:  * syncDelta() Create Delta patch file
   49:  * @csInput = Input original source file name for make delta patch file
   50:  * @csSig = Input Signature file name
   51:  * @csDelta = Output Delta patch file name
   52:  * @compress = Compress output, 0 not compressed
   53:  * return: -1 error, 0 ok, create delta patch, 1 ok, no differences and not create patch
   54:  */
   55: int syncDelta(const char *csInput, const char *csSig, const char *csDelta, int compress);
   56: 
   57: /*
   58:  * syncPatch() Apply delta patch file to target
   59:  * @csInput = Input target file name for patch
   60:  * @csDelta = Input Delta patch file name
   61:  * @csPatch = After applied patch create new alternate target file, if != NULL
   62:  * @compress = Compress output, 0 not compressed
   63:  * return: -1 error, 0 ok, create delta patch, 1 ok, no differences and not create patch
   64:  */
   65: int syncPatch(const char *csInput, const char *csDelta, const char *csPatch, int compress);
   66: 
   67: 
   68: #endif