https://git.reactos.org/?p=reactos.git;a=commitdiff;h=b139bae58dd40f8d378c0eb7154fafc03374961c
commit b139bae58dd40f8d378c0eb7154fafc03374961c Author: Serge Gautherie <[email protected]> AuthorDate: Mon Apr 27 22:10:22 2020 +0200 Commit: GitHub <[email protected]> CommitDate: Mon Apr 27 22:10:22 2020 +0200 [WINSPOOL] EnumPrintersA: Refactor failure handling (#2304) --- win32ss/printing/base/winspool/printers.c | 62 ++++++++++++++++++------------- 1 file changed, 36 insertions(+), 26 deletions(-) diff --git a/win32ss/printing/base/winspool/printers.c b/win32ss/printing/base/winspool/printers.c index 4180dfb3d1c..219e831cb16 100644 --- a/win32ss/printing/base/winspool/printers.c +++ b/win32ss/printing/base/winspool/printers.c @@ -471,7 +471,8 @@ Cleanup: BOOL WINAPI EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbBuf, PDWORD pcbNeeded, PDWORD pcReturned) { - BOOL bReturnValue = FALSE; + DWORD dwErrorCode; + BOOL bResult; DWORD cch; PWSTR pwszName = NULL; PSTR pszPrinterName = NULL; @@ -502,7 +503,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB // Check for invalid levels here for early error return. MSDN says that only 1, 2, 4, and 5 are allowable. if (Level != 1 && Level != 2 && Level != 4 && Level != 5) { - SetLastError(ERROR_INVALID_LEVEL); + dwErrorCode = ERROR_INVALID_LEVEL; ERR("Invalid Level!\n"); goto Cleanup; } @@ -515,7 +516,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pwszName = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(WCHAR)); if (!pwszName) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -524,10 +525,12 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB } /* Ref: https://stackoverflow.com/questions/41147180/why-enumprintersa-and-enumprintersw-request-the-same-amount-of-memory */ - bReturnValue = EnumPrintersW(Flags, pwszName, Level, pPrinterEnum, cbBuf, pcbNeeded, pcReturned); - HeapFree(hProcessHeap, 0, pwszName); - - TRACE("*pcReturned is '%d' and bReturnValue is '%d' and GetLastError is '%ld'.\n", *pcReturned, bReturnValue, GetLastError()); + bResult = EnumPrintersW(Flags, pwszName, Level, pPrinterEnum, cbBuf, pcbNeeded, pcReturned); + if (!bResult) + { + dwErrorCode = GetLastError(); + goto Cleanup; + } /* We are mapping multiple different pointers to the same pPrinterEnum pointer here so that */ /* we can do in-place conversion. We read the Unicode response from the EnumPrintersW and */ @@ -558,7 +561,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszDescription = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszDescription) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -577,7 +580,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszName = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszName) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -596,7 +599,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszComment = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszComment) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -620,7 +623,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszServerName = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszServerName) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -639,7 +642,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszPrinterName = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszPrinterName) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -658,7 +661,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszShareName = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszShareName) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -677,7 +680,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszPortName = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszPortName) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -696,7 +699,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszDriverName = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszDriverName) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -715,7 +718,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszComment = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszComment) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -734,7 +737,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszLocation = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszLocation) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -754,7 +757,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszSepFile = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszSepFile) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -773,7 +776,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszPrintProcessor = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszPrintProcessor) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -793,7 +796,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszDatatype = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszDatatype) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -812,7 +815,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszParameters = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszParameters) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -836,7 +839,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszPrinterName = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszPrinterName) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -855,7 +858,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszServerName = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszServerName) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -878,7 +881,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszPrinterName = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszPrinterName) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -897,7 +900,7 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB pszPortName = HeapAlloc(hProcessHeap, 0, (cch + 1) * sizeof(CHAR)); if (!pszPortName) { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); + dwErrorCode = ERROR_NOT_ENOUGH_MEMORY; ERR("HeapAlloc failed!\n"); goto Cleanup; } @@ -913,9 +916,16 @@ EnumPrintersA(DWORD Flags, PSTR Name, DWORD Level, PBYTE pPrinterEnum, DWORD cbB } // switch } // for + dwErrorCode = ERROR_SUCCESS; + Cleanup: + if (pwszName) + { + HeapFree(hProcessHeap, 0, pwszName); + } - return bReturnValue; + SetLastError(dwErrorCode); + return (dwErrorCode == ERROR_SUCCESS); } BOOL WINAPI
