| 70 | } |
| 71 | |
| 72 | static bool GetFilePatchChain(TMPQFile * hf, void * pvFileInfo, DWORD cbFileInfo, DWORD * pcbLengthNeeded) |
| 73 | { |
| 74 | TMPQFile * hfTemp; |
| 75 | TCHAR * szFileInfo = (TCHAR *)pvFileInfo; |
| 76 | size_t cchCharsNeeded = 1; |
| 77 | size_t cchFileInfo = (cbFileInfo / sizeof(TCHAR)); |
| 78 | size_t nLength; |
| 79 | |
| 80 | // Patch chain is only supported on MPQ files. |
| 81 | if(hf->pStream != NULL) |
| 82 | { |
| 83 | SetLastError(ERROR_INVALID_PARAMETER); |
| 84 | return false; |
| 85 | } |
| 86 | |
| 87 | // Calculate the necessary length of the multi-string |
| 88 | for(hfTemp = hf; hfTemp != NULL; hfTemp = hfTemp->hfPatch) |
| 89 | cchCharsNeeded += _tcslen(FileStream_GetFileName(hfTemp->ha->pStream)) + 1; |
| 90 | |
| 91 | // Give the caller the needed length |
| 92 | if(pcbLengthNeeded != NULL) |
| 93 | pcbLengthNeeded[0] = (DWORD)(cchCharsNeeded * sizeof(TCHAR)); |
| 94 | |
| 95 | // If the caller gave both buffer pointer and data length, |
| 96 | // try to copy the patch chain |
| 97 | if(szFileInfo != NULL && cchFileInfo != 0) |
| 98 | { |
| 99 | // If there is enough space in the buffer, copy the patch chain |
| 100 | if(cchCharsNeeded > cchFileInfo) |
| 101 | { |
| 102 | SetLastError(ERROR_INSUFFICIENT_BUFFER); |
| 103 | return false; |
| 104 | } |
| 105 | |
| 106 | // Copy each patch |
| 107 | for(hfTemp = hf; hfTemp != NULL; hfTemp = hfTemp->hfPatch) |
| 108 | { |
| 109 | // Get the file name and its length |
| 110 | const TCHAR * szFileName = FileStream_GetFileName(hfTemp->ha->pStream); |
| 111 | nLength = _tcslen(szFileName) + 1; |
| 112 | |
| 113 | // Copy the file name |
| 114 | memcpy(szFileInfo, szFileName, nLength * sizeof(TCHAR)); |
| 115 | szFileInfo += nLength; |
| 116 | } |
| 117 | |
| 118 | // Make it multi-string |
| 119 | szFileInfo[0] = 0; |
| 120 | } |
| 121 | |
| 122 | return true; |
| 123 | } |
| 124 | |
| 125 | //----------------------------------------------------------------------------- |
| 126 | // Retrieves an information about an archive or about a file within the archive |
no test coverage detected