static rs_result rdiff_patch(poptContext opcon)
{
/* patch BASIS [DELTA [NEWFILE]] */
FILE *basis_file, *delta_file, *new_file;
char const *basis_name;
rs_stats_t stats;
rs_result result;
if (!(basis_name = poptGetArg(opcon))) {
rdiff_usage("Usage for patch: "
"rdiff [OPTIONS] patch BASIS [DELTA [NEW]]");
return RS_SYNTAX_ERROR;
}
basis_file = rs_file_open(basis_name, "rb");
delta_file = rs_file_open(poptGetArg(opcon), "rb");
new_file = rs_file_open(poptGetArg(opcon), "wb");
rdiff_no_more_args(opcon);
result = rs_patch_file(basis_file, delta_file, new_file, &stats);
rs_file_close(new_file);
rs_file_close(delta_file);
rs_file_close(basis_file);
if (show_stats)
rs_log_stats(&stats);
return result;
}
int main(int argc, char *argv[])
{
FILE *basis_file;
FILE *delta_file;
rs_result ret;
FILE *new_file;
rs_stats_t stats;
if(argc != 4)
{
fprintf(stderr, "invalid argument(s)\n");
exit(1);
}
basis_file = fopen(argv[1], "rb");
delta_file = fopen(argv[2], "rb");
new_file = fopen(argv[3], "wb");
ret = rs_patch_file(basis_file, delta_file, new_file, &stats);
fclose(basis_file);
fclose(delta_file);
fclose(new_file);
if(ret != RS_DONE)
{
puts(rs_strerror(ret));
exit(1);
}
rs_log_stats(&stats);
return 0;
}
bool rsync_patch(const std::string &basis_file_path, const std::string &patch_file_path,
const std::string &new_file_path)
{
FILE *basis_file;
FILE *delta_file;
rs_result ret;
FILE *new_file;
rs_stats_t stats;
basis_file = fopen(basis_file_path.c_str(), "rb");
if(basis_file == NULL)
return false;
delta_file = fopen(patch_file_path.c_str(), "rb");
if(delta_file == NULL)
{
fclose(basis_file);
return false;
}
new_file = fopen(new_file_path.c_str(), "wb");
if(new_file == NULL)
{
fclose(basis_file);
fclose(delta_file);
return false;
}
ret = rs_patch_file(basis_file, delta_file, new_file, &stats);
fclose(basis_file);
fclose(delta_file);
fclose(new_file);
return (ret == RS_DONE);
}
bool rsync_patch(char* oldfile,char* newfile,char* deltafile){
FILE* old=FileUtil::rs_file_open(oldfile,"rb");
FILE* delta=FileUtil::rs_file_open(deltafile,"rb");
FILE* newf=FileUtil::rs_file_open(newfile,"wb");
rs_result rs=rs_patch_file(old,delta,newf,NULL);
FileUtil::rs_file_close(old);
FileUtil::rs_file_close(newf);
FileUtil::rs_file_close(delta);
if(rs!=RS_DONE){
return false;}else{
return true;}
}
int csync_rs_patch(const char *filename)
{
FILE *basis_file = 0, *delta_file = 0, *new_file = 0;
int backup_errno;
rs_stats_t stats;
rs_result result;
char *errstr = "?";
char tmpfname[MAXPATHLEN], newfname[MAXPATHLEN];
csync_debug(3, "Csync2 / Librsync: csync_rs_patch('%s')\n", filename);
csync_debug(3, "Receiving delta_file from peer..\n");
delta_file = open_temp_file(tmpfname, prefixsubst(filename));
if ( !delta_file ) { errstr="creating delta temp file"; goto io_error; }
if (unlink(tmpfname) < 0) { errstr="removing delta temp file"; goto io_error; }
if ( csync_recv_file(delta_file) ) goto error;
csync_debug(3, "Opening to be patched file on local host..\n");
basis_file = fopen(prefixsubst(filename), "rb");
if ( !basis_file ) {
basis_file = open_temp_file(tmpfname, prefixsubst(filename));
if ( !basis_file ) { errstr="opening data file for reading"; goto io_error; }
if (unlink(tmpfname) < 0) { errstr="removing data temp file"; goto io_error; }
}
csync_debug(3, "Opening temp file for new data on local host..\n");
new_file = open_temp_file(newfname, prefixsubst(filename));
if ( !new_file ) { errstr="creating new data temp file"; goto io_error; }
csync_debug(3, "Running rs_patch_file() from librsync..\n");
result = rs_patch_file(basis_file, delta_file, new_file, &stats);
if (result != RS_DONE) {
csync_debug(0, "Internal error from rsync library!\n");
goto error;
}
csync_debug(3, "Renaming tmp file to data file..\n");
fclose(basis_file);
#ifdef __CYGWIN__
/* TODO: needed? */
// This creates the file using the native windows API, bypassing
// the cygwin wrappers and so making sure that we do not mess up the
// permissions..
{
char winfilename[MAX_PATH];
HANDLE winfh;
cygwin_conv_to_win32_path(prefixsubst(filename), winfilename);
winfh = CreateFile(TEXT(winfilename),
GENERIC_WRITE, // open for writing
0, // do not share
NULL, // default security
CREATE_ALWAYS, // overwrite existing
FILE_ATTRIBUTE_NORMAL | // normal file
FILE_FLAG_OVERLAPPED, // asynchronous I/O
NULL); // no attr. template
if (winfh == INVALID_HANDLE_VALUE) {
csync_debug(0, "Win32 I/O Error %d in rsync-patch: %s\n",
(int)GetLastError(), winfilename);
errno = EACCES;
goto error;
}
CloseHandle(winfh);
}
#endif
if (rename(newfname, prefixsubst(filename)) < 0) { errstr="renaming tmp file to to be patched file"; goto io_error; }
csync_debug(3, "File has been patched successfully.\n");
fclose(delta_file);
fclose(new_file);
return 0;
io_error:
csync_debug(0, "I/O Error '%s' while %s in rsync-patch: %s\n",
strerror(errno), errstr, prefixsubst(filename));
error:;
backup_errno = errno;
if ( delta_file ) fclose(delta_file);
if ( basis_file ) fclose(basis_file);
if ( new_file ) fclose(new_file);
errno = backup_errno;
return -1;
}
