diff --git a/src/system/detail/src/vnodeQueryImpl.c b/src/system/detail/src/vnodeQueryImpl.c index fb8ff7ef1995454eae4784973afeaf066f422295..45c3385ed0991011e9ba79228652842d602215f5 100644 --- a/src/system/detail/src/vnodeQueryImpl.c +++ b/src/system/detail/src/vnodeQueryImpl.c @@ -252,15 +252,31 @@ static void vnodeSetOpenedFileNames(SQueryFilesInfo* pVnodeFilesInfo) { SHeaderFileInfo* pCurrentFileInfo = &pVnodeFilesInfo->pFileInfo[pVnodeFilesInfo->current]; - // set the full file path for current opened files - snprintf(pVnodeFilesInfo->headerFilePath, PATH_MAX, "%sv%df%d.head", pVnodeFilesInfo->dbFilePathPrefix, - pVnodeFilesInfo->vnodeId, pCurrentFileInfo->fileID); + /* + * set the full file path for current opened files + * the maximum allowed path string length is PATH_MAX in Linux, 100 bytes is used to + * suppress the compiler warnings + */ + char str[PATH_MAX + 100] = {0}; + int32_t PATH_WITH_EXTRA = PATH_MAX + 100; + + int32_t vnodeId = pVnodeFilesInfo->vnodeId; + int32_t fileId = pCurrentFileInfo->fileID; + + int32_t len = snprintf(str, PATH_WITH_EXTRA, "%sv%df%d.head", pVnodeFilesInfo->dbFilePathPrefix, vnodeId, fileId); + assert(len <= PATH_MAX); + + strncpy(pVnodeFilesInfo->headerFilePath, str, PATH_MAX); + + len = snprintf(str, PATH_WITH_EXTRA, "%sv%df%d.data", pVnodeFilesInfo->dbFilePathPrefix, vnodeId, fileId); + assert(len <= PATH_MAX); + + strncpy(pVnodeFilesInfo->dataFilePath, str, PATH_MAX); - snprintf(pVnodeFilesInfo->dataFilePath, PATH_MAX, "%sv%df%d.data", pVnodeFilesInfo->dbFilePathPrefix, - pVnodeFilesInfo->vnodeId, pCurrentFileInfo->fileID); + len = snprintf(str, PATH_WITH_EXTRA, "%sv%df%d.last", pVnodeFilesInfo->dbFilePathPrefix, vnodeId, fileId); + assert(len <= PATH_MAX); - snprintf(pVnodeFilesInfo->lastFilePath, PATH_MAX, "%sv%df%d.last", pVnodeFilesInfo->dbFilePathPrefix, - pVnodeFilesInfo->vnodeId, pCurrentFileInfo->fileID); + strncpy(pVnodeFilesInfo->lastFilePath, str, PATH_MAX); } /**