Über C++ mit unrar.dll .rar Datein entpacken

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#include <iostream>#include <iomanip>#include <string>#include <Windows.h>#include "unrar.h"
enum { EXTRACT, TEST, PRINT, LIST };
void ExtractArchive(char* ArcName, int Mode);void ListArchive(char* ArcName);void ShowComment(char* CmtBuf);void OutHelp(void);
enum ERR_TYPE { ERR_OPEN, ERR_READ, ERR_PROCESS };void OutError(int Error, char* ArcName, int ErrType);
void ShowArcInfo(unsigned int Flags, char* ArcName);void OutProcessFileError(int Error);int CALLBACK CallbackProc(UINT msg, LPARAM UserData, LPARAM P1, LPARAM P2);

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int main(int nArgs, char** szArgs){
char* szPath = "I:\\Projekte\\Visual_Studio\\Unrar\\Beispiel.rar"; ExtractArchive(szPath, EXTRACT);
return 0;//EXIT_SUCCESS}

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void ExtractArchive(char* ArcName, int Mode){ HANDLE hArcData; int RHCode, PFCode; char CmtBuf[16384]; struct RARHeaderData HeaderData; struct RAROpenArchiveDataEx OpenArchiveData;
memset(&OpenArchiveData, 0, sizeof(OpenArchiveData)); OpenArchiveData.ArcName = ArcName; OpenArchiveData.CmtBuf = CmtBuf; OpenArchiveData.CmtBufSize = sizeof(CmtBuf); OpenArchiveData.OpenMode = RAR_OM_EXTRACT; OpenArchiveData.Callback = CallbackProc; OpenArchiveData.UserData = Mode; hArcData = RAROpenArchiveEx(&OpenArchiveData);
if (OpenArchiveData.OpenResult != 0) { OutError(OpenArchiveData.OpenResult, ArcName, ERR_OPEN); return; }
ShowArcInfo(OpenArchiveData.Flags, ArcName);
if (OpenArchiveData.CmtState == 1) { ShowComment(CmtBuf); }
// Obsolete, use RAROpenArchiveDataEx callback fields above. // RARSetCallback(hArcData,CallbackProc,(LPARAM)&Mode);
HeaderData.CmtBuf = NULL; memset(&OpenArchiveData.Reserved, 0, sizeof(OpenArchiveData.Reserved));
while ((RHCode = RARReadHeader(hArcData, &HeaderData)) == 0) { switch (Mode) { case EXTRACT: printf("\nExtracting %-45s", HeaderData.FileName); break; case TEST: printf("\nTesting %-45s", HeaderData.FileName); break; case PRINT: printf("\nPrinting %-45s\n", HeaderData.FileName); break; } PFCode = RARProcessFile(hArcData, (Mode == EXTRACT) ? RAR_EXTRACT : RAR_TEST, NULL, NULL); if (PFCode == 0) { printf(" OK"); } else { OutError(PFCode, ArcName, ERR_PROCESS); break; } }
OutError(RHCode, ArcName, ERR_READ);
RARCloseArchive(hArcData);}

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void ListArchive(char* ArcName){ HANDLE hArcData; int RHCode, PFCode; char CmtBuf[16384]; struct RARHeaderDataEx HeaderData; struct RAROpenArchiveDataEx OpenArchiveData;
memset(&OpenArchiveData, 0, sizeof(OpenArchiveData)); OpenArchiveData.ArcName = ArcName; OpenArchiveData.CmtBuf = CmtBuf; OpenArchiveData.CmtBufSize = sizeof(CmtBuf); OpenArchiveData.OpenMode = RAR_OM_LIST; OpenArchiveData.Callback = CallbackProc; OpenArchiveData.UserData = LIST; hArcData = RAROpenArchiveEx(&OpenArchiveData);
if (OpenArchiveData.OpenResult != 0) { OutError(OpenArchiveData.OpenResult, ArcName, ERR_OPEN); return; }
ShowArcInfo(OpenArchiveData.Flags, ArcName);
if (OpenArchiveData.CmtState == 1) { ShowComment(CmtBuf); }
// Obsolete, use RAROpenArchiveDataEx callback fields above. // RARSetCallback(hArcData,CallbackProc,0);
HeaderData.CmtBuf = NULL; memset(&OpenArchiveData.Reserved, 0, sizeof(OpenArchiveData.Reserved));
printf("\nFile Size"); printf("\n-------------------------------"); while ((RHCode = RARReadHeaderEx(hArcData, &HeaderData)) == 0) { __int64 UnpSize = HeaderData.UnpSize + (((__int64)HeaderData.UnpSizeHigh) << 32); printf("\n%-20s %10Ld ", HeaderData.FileName, UnpSize); if ((PFCode = RARProcessFile(hArcData, RAR_SKIP, NULL, NULL)) != 0) { OutError(PFCode, ArcName, ERR_PROCESS); break; } }
OutError(RHCode, ArcName, ERR_READ);
RARCloseArchive(hArcData);}

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void ShowComment(char* CmtBuf){ printf("\nComment:\n%s\n", CmtBuf);}

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void OutHelp(void){ printf("\nUNRDLL. This is a simple example of UNRAR.DLL usage\n"); printf("\nSyntax:\n"); printf("\nUNRDLL X <Archive> extract archive contents"); printf("\nUNRDLL T <Archive> test archive contents"); printf("\nUNRDLL P <Archive> print archive contents to stdout"); printf("\nUNRDLL L <Archive> view archive contents\n");}

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void OutError(int Error, char* ArcName, int ErrType){ switch (Error) { case ERAR_NO_MEMORY: printf("\nNot enough memory"); break; case ERAR_BAD_DATA: printf("\n%s: archive header or data are damaged", ArcName); break; case ERAR_BAD_ARCHIVE: printf("\n%s is not RAR archive", ArcName); break; case ERAR_UNKNOWN_FORMAT: printf("Unknown archive format"); break; case ERAR_EOPEN: if (ErrType == ERR_PROCESS) // Returned by RARProcessFile. { printf("Volume open error"); } else { printf("\nCannot open %s", ArcName); } break; case ERAR_ECREATE: printf("File create error"); break; case ERAR_ECLOSE: printf("File close error"); break; case ERAR_EREAD: printf("Read error"); break; case ERAR_EWRITE: printf("Write error"); break; case ERAR_SMALL_BUF: printf("Buffer for archive comment is too small, comment truncated"); break; case ERAR_UNKNOWN: printf("Unknown error"); break; case ERAR_MISSING_PASSWORD: printf("Password for encrypted file or header is not specified"); break; case ERAR_EREFERENCE: printf("Cannot open file source for reference record"); break; case ERAR_BAD_PASSWORD: printf("Wrong password is specified"); break; }}

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void ShowArcInfo(unsigned int Flags, char* ArcName){ printf("\nArchive %s\n", ArcName); printf("\nVolume:\t\t%s", (Flags & 1) ? "yes" : "no"); printf("\nComment:\t%s", (Flags & 2) ? "yes" : "no"); printf("\nLocked:\t\t%s", (Flags & 4) ? "yes" : "no"); printf("\nSolid:\t\t%s", (Flags & ? "yes" : "no"); printf("\nNew naming:\t%s", (Flags & 16) ? "yes" : "no"); printf("\nRecovery:\t%s", (Flags & 64) ? "yes" : "no"); printf("\nEncr.headers:\t%s", (Flags & 128) ? "yes" : "no"); printf("\nFirst volume:\t%s", (Flags & 256) ? "yes" : "no or older than 3.0"); printf("\n---------------------------\n");}

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int CALLBACK CallbackProc(UINT msg, LPARAM UserData, LPARAM P1, LPARAM P2){ switch (msg) { case UCM_CHANGEVOLUMEW: if (P2 == RAR_VOL_ASK) { printf("\n\nVolume %S is required\nPossible options:\n", (wchar_t*)P1); printf("\nEnter - try again"); printf("\n'R' - specify a new volume name"); printf("\n'Q' - quit"); printf("\nEnter your choice: "); switch (toupper(getchar())) { case 'Q': return(-1); case 'R': { wchar_t* eol; printf("\nEnter new name: "); fflush(stdin);
// fgetws may fail to read non-English characters from stdin // in some compilers. In this case use something more // appropriate for Unicode input. fgetws((wchar_t*)P1, MAX_PATH, stdin);
eol = wcspbrk((wchar_t*)P1, L"\r\n"); if (eol != NULL) { *eol = 0; } } return(1); default: return(1); } } if (P2 == RAR_VOL_NOTIFY) { printf("\n ... volume %S\n", (wchar_t*)P1); } return(1); case UCM_PROCESSDATA: if (UserData == PRINT) { fflush(stdout); fwrite((char*)P1, 1, P2, stdout); fflush(stdout); } return(1); case UCM_NEEDPASSWORDW: { wchar_t* eol; printf("\nPassword required: ");
// fgetws may fail to read non-English characters from stdin // in some compilers. In this case use something more appropriate // for Unicode input. fgetws((wchar_t*)P1, P2, stdin);
eol = wcspbrk((wchar_t*)P1, L"\r\n"); if (eol != NULL) { *eol = 0; } } return(1); } return(0);}

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