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odbccp32: Clean up SQLGetInstalledDrivers().
Signed-off-by: Zebediah Figura <z.figura12@gmail.com> Signed-off-by: Hans Leidekker <hans@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura
Alexandre Julliard
parent
99562a5617
commit
169960b676
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@ -482,99 +482,97 @@ BOOL WINAPI SQLGetConfigMode(UWORD *pwConfigMode)
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return TRUE;
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}
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/* This is implemented sensibly rather than according to exact conformance to Microsoft's buggy implementations
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* e.g. The Microsoft one occasionally actually adds a third nul character (possibly beyond the buffer).
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* e.g. If the key has no drivers then version 3.525.1117.0 does not modify the buffer at all, not even a nul character.
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*/
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BOOL WINAPI SQLGetInstalledDriversW(LPWSTR lpszBuf, WORD cbBufMax,
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WORD *pcbBufOut)
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BOOL WINAPI SQLGetInstalledDriversW(WCHAR *buf, WORD size, WORD *sizeout)
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{
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HKEY hDrivers; /* Registry handle to the Drivers key */
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LONG reg_ret; /* Return code from registry functions */
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BOOL success = FALSE; /* The value we will return */
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WORD written = 0;
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DWORD index = 0;
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BOOL ret = TRUE;
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DWORD valuelen;
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WCHAR *value;
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HKEY drivers;
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DWORD len;
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LONG res;
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clear_errors();
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TRACE("%p %d %p\n", lpszBuf, cbBufMax, pcbBufOut);
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TRACE("%p %d %p\n", buf, size, sizeout);
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if (!lpszBuf || cbBufMax == 0)
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if (!buf || !size)
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{
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push_error(ODBC_ERROR_INVALID_BUFF_LEN, odbc_error_invalid_buff_len);
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return FALSE;
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}
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else if ((reg_ret = RegOpenKeyExW (HKEY_LOCAL_MACHINE /* The drivers does not depend on the config mode */,
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drivers_key, 0, KEY_READ /* Maybe overkill */,
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&hDrivers)) == ERROR_SUCCESS)
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res = RegOpenKeyExW(HKEY_LOCAL_MACHINE, drivers_key, 0, KEY_QUERY_VALUE, &drivers);
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if (res)
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{
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DWORD index = 0;
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cbBufMax--;
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success = TRUE;
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while (cbBufMax > 0)
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{
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DWORD size_name;
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size_name = cbBufMax;
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if ((reg_ret = RegEnumValueW(hDrivers, index, lpszBuf, &size_name, NULL, NULL, NULL, NULL)) == ERROR_SUCCESS)
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{
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index++;
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assert (size_name < cbBufMax && *(lpszBuf + size_name) == 0);
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size_name++;
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cbBufMax-= size_name;
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lpszBuf+=size_name;
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}
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else
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{
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if (reg_ret != ERROR_NO_MORE_ITEMS)
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{
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success = FALSE;
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push_error(ODBC_ERROR_GENERAL_ERR, odbc_error_general_err);
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}
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break;
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}
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}
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*lpszBuf = 0;
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if ((reg_ret = RegCloseKey (hDrivers)) != ERROR_SUCCESS)
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TRACE ("Error %d closing ODBC Drivers key\n", reg_ret);
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}
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else
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{
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/* MSDN states that it returns failure with COMPONENT_NOT_FOUND in this case.
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* Version 3.525.1117.0 (Windows 2000) does not; it actually returns success.
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* I doubt if it will actually be an issue.
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*/
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push_error(ODBC_ERROR_COMPONENT_NOT_FOUND, odbc_error_component_not_found);
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return FALSE;
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}
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return success;
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RegQueryInfoKeyW(drivers, 0, 0, 0, 0, 0, 0, 0, &valuelen, 0, 0, 0);
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value = heap_alloc(++valuelen * sizeof(WCHAR));
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size--;
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while (1)
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{
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len = valuelen;
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res = RegEnumValueW(drivers, index++, value, &len, NULL, NULL, NULL, NULL);
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if (res == ERROR_SUCCESS)
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{
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lstrcpynW(buf + written, value, size - written);
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written += min(len + 1, size - written);
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}
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else if (res == ERROR_NO_MORE_ITEMS)
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break;
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else
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{
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push_error(ODBC_ERROR_GENERAL_ERR, odbc_error_general_err);
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ret = FALSE;
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break;
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}
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}
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buf[written++] = 0;
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heap_free(value);
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RegCloseKey(drivers);
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if (sizeout)
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*sizeout = written;
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return ret;
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}
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BOOL WINAPI SQLGetInstalledDrivers(LPSTR lpszBuf, WORD cbBufMax,
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WORD *pcbBufOut)
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BOOL WINAPI SQLGetInstalledDrivers(char *buf, WORD size, WORD *sizeout)
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{
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WORD written;
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WCHAR *wbuf;
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BOOL ret;
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int size_wbuf = cbBufMax;
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LPWSTR wbuf;
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WORD size_used;
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TRACE("%p %d %p\n", lpszBuf, cbBufMax, pcbBufOut);
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TRACE("%p %d %p\n", buf, size, sizeout);
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wbuf = HeapAlloc(GetProcessHeap(), 0, size_wbuf*sizeof(WCHAR));
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if (wbuf)
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if (!buf || !size)
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{
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ret = SQLGetInstalledDriversW(wbuf, size_wbuf, &size_used);
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if (ret)
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{
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if (!(ret = SQLInstall_narrow(2, lpszBuf, wbuf, size_used, cbBufMax, pcbBufOut)))
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{
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push_error(ODBC_ERROR_GENERAL_ERR, odbc_error_general_err);
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}
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}
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HeapFree(GetProcessHeap(), 0, wbuf);
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/* ignore failure; we have achieved the aim */
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push_error(ODBC_ERROR_INVALID_BUFF_LEN, odbc_error_invalid_buff_len);
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return FALSE;
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}
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else
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wbuf = heap_alloc(size * sizeof(WCHAR));
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if (!wbuf)
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{
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push_error(ODBC_ERROR_OUT_OF_MEM, odbc_error_out_of_mem);
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ret = FALSE;
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return FALSE;
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}
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return ret;
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ret = SQLGetInstalledDriversW(wbuf, size, &written);
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if (!ret)
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return FALSE;
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*sizeout = WideCharToMultiByte(CP_ACP, 0, wbuf, written, NULL, 0, NULL, NULL);
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WideCharToMultiByte(CP_ACP, 0, wbuf, written, buf, size, NULL, NULL);
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heap_free(wbuf);
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return TRUE;
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}
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static HKEY get_privateprofile_sectionkey(LPCWSTR section, LPCWSTR filename)
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