+/*
+ * PROJECT: ReactOS API tests
+ * LICENSE: LGPL-2.1+ (https://spdx.org/licenses/LGPL-2.1+)
+ * PURPOSE: Tests for Hostname command and Winsock gethostname() function.
+ * COPYRIGHT: Copyright 2019 Doug Lyons <douglyons@douglyons.com>
+ * Copyright 2019 Hermes Belusca-Maito
+ */
+
+#include "ws2_32.h"
+
+#include <winreg.h>
+
+#define REG_HOSTNAME_KEY L"System\\CurrentControlSet\\Services\\Tcpip\\Parameters"
+#define REG_COMPUTERNAME_KEY L"System\\CurrentControlSet\\Control\\ComputerName\\ComputerName"
+
+HKEY
+OpenRegKey(
+ IN HKEY hRootKey,
+ IN PCWSTR pszSubKey,
+ IN DWORD ulOptions)
+{
+ HKEY hKey = NULL;
+ LONG Error = RegOpenKeyExW(hRootKey, pszSubKey, 0, ulOptions, &hKey);
+ if (Error == ERROR_SUCCESS)
+ return hKey;
+ return NULL;
+}
+
+BOOL
+GetHostnameFromCommand(
+ OUT PSTR pszHostnameBuffer,
+ IN ULONG ulBufferSize)
+{
+ PCSTR file_name = "HostName123.txt";
+ CHAR cmdline[MAX_PATH] = "hostname > ";
+ FILE *fp;
+ INT iResult;
+ INT len;
+ PCSTR ptr;
+
+ ZeroMemory(pszHostnameBuffer, ulBufferSize * sizeof(CHAR));
+
+ /* Run the 'hostname' command, piping out its result to the temporary file */
+ strcat(cmdline, file_name);
+ system(cmdline);
+
+ /* Open the temporary file in read mode */
+ fp = fopen(file_name, "r");
+ ok(fp != NULL, "An error occurred while opening the file.\n");
+ if (fp == NULL)
+ return FALSE;
+
+ /* Read its contents */
+ ptr = fgets(pszHostnameBuffer, ulBufferSize * sizeof(CHAR), fp);
+ ok(ptr != NULL, "An error occurred while reading the file.\n");
+ if (ptr == NULL)
+ goto Cleanup;
+
+ /* Delete the expected ending line feed character */
+ len = strlen(pszHostnameBuffer);
+ if (pszHostnameBuffer[len-1] == '\r' || pszHostnameBuffer[len-1] == '\n')
+ pszHostnameBuffer[len-1] = ANSI_NULL;
+
+Cleanup:
+ /* Close and remove the file */
+ iResult = fclose(fp);
+ ok(iResult == 0, "An error occurred while closing the file: %i.\n", iResult);
+ iResult = remove(file_name);
+ ok(iResult == 0, "An error occurred while deleting the file: %i.\n", iResult);
+
+ return (ptr ? TRUE : FALSE);
+}
+
+START_TEST(gethostname)
+{
+ INT pos;
+ HKEY hKeyHN;
+ DWORD cbData;
+ LONG Error;
+ INT hnError;
+ INT iResult;
+ WSADATA wsaData;
+ DWORD uApiHostNameSize;
+ CHAR szApiHostName[256] = "";
+ CHAR szHostNameOld[256] = "";
+ CHAR szHostNameNew[256] = "";
+ CHAR hostbuffer[256] = "";
+
+/*
+ * Notes about the retrieval of the computer name on Windows.
+ *
+ * - GetComputerName() (equivalently, GetComputerNameEx(ComputerNameNetBIOS))
+ * retrieves the name cached in the registry value "ComputerName" under
+ * "System\\CurrentControlSet\\Control\\ComputerName\\ActiveComputerName" .
+ *
+ * - GetComputerNameEx(ComputerNameDnsHostname) as well as the 'hostname' command
+ return the registry value "Hostname" under "System\\CurrentControlSet\\Services\\Tcpip\\Parameters" .
+ *
+ * - In case a new computer name is set, its value is cached in the registry value
+ * "ComputerName" under "System\\CurrentControlSet\\Control\\ComputerName\\ComputerName",
+ * and also in the registry value "NV Hostname" under "System\\CurrentControlSet\\Services\\Tcpip\\Parameters" .
+ */
+
+ /* Retrieve the current host name using API */
+ uApiHostNameSize = _countof(szApiHostName);
+ if (!GetComputerNameExA(ComputerNameDnsHostname, szApiHostName, &uApiHostNameSize))
+ {
+ /* Fail in case of error */
+ skip("GetComputerNameExA(ComputerNameDnsHostname) failed, error %lu\n", GetLastError());
+ return;
+ }
+ printf("The Hostname from API is '%s'.\n", szApiHostName);
+
+ /* Retrieve the current host name using the 'hostname' command */
+ if (!GetHostnameFromCommand(hostbuffer, _countof(hostbuffer)))
+ {
+ /* Fail in case of error */
+ skip("Error while retrieving the host name using the 'hostname' command!\n");
+ return;
+ }
+ printf("The Hostname from command is '%s'.\n", hostbuffer);
+
+ pos = strcmp(szApiHostName, hostbuffer);
+ printf("The test results were '%s'.\n", pos==0 ? "good" : "bad");
+ ok(pos == 0, "hostbuffer '%s' should have been szApiHostName '%s'.\n", hostbuffer, szApiHostName);
+
+ hKeyHN = OpenRegKey(HKEY_LOCAL_MACHINE, REG_HOSTNAME_KEY, KEY_ALL_ACCESS);
+ ok(hKeyHN != NULL, "Error while opening hostname registry key.\n");
+ if (hKeyHN == NULL)
+ return;
+
+ /* Get Old Hostname */
+ szHostNameOld[0] = ANSI_NULL;
+ cbData = sizeof(szHostNameOld);
+ Error = RegQueryValueExA(hKeyHN, "Hostname", NULL, NULL, (LPBYTE)szHostNameOld, &cbData);
+
+ printf("Hostname from Registry is '%s'.\n", szHostNameOld);
+
+ pos = strcmp(szHostNameOld, szApiHostName);
+ printf("The test results were '%s'.\n", pos==0 ? "good" : "bad");
+ ok(pos == 0, "szApiHostName '%s' should have been szHostNameOld '%s'.\n", szApiHostName, szHostNameOld);
+
+ /* Change Hostname in the Registry */
+ szHostNameNew[0] = ANSI_NULL;
+ strcat(szHostNameNew, "ROSHOSTNAME1");
+ cbData = strlen(szHostNameNew) + 1;
+
+ Error = RegSetValueExA(hKeyHN, "Hostname", 0, REG_SZ, (LPBYTE)szHostNameNew, cbData);
+ ok(Error == ERROR_SUCCESS, "Error setting new registry value (%ld).\n", GetLastError());
+
+ /* Retrieve the current host name using API */
+ uApiHostNameSize = _countof(szApiHostName);
+ if (!GetComputerNameExA(ComputerNameDnsHostname, szApiHostName, &uApiHostNameSize))
+ {
+ /* Fail in case of error */
+ skip("GetComputerNameExA(ComputerNameDnsHostname) failed, error %lu\n", GetLastError());
+ goto Cleanup;
+ }
+ printf("The Hostname from API is '%s'.\n", szApiHostName);
+
+ /* Retrieve the current host name using the 'hostname' command */
+ if (!GetHostnameFromCommand(hostbuffer, _countof(hostbuffer)))
+ {
+ /* Fail in case of error */
+ skip("Error while retrieving the host name using the 'hostname' command!\n");
+ goto Cleanup;
+ }
+ printf("The Hostname from command is '%s'.\n", hostbuffer);
+
+ pos = strcmp(szHostNameNew, szApiHostName);
+ printf("The test results were '%s'.\n", pos==0 ? "good" : "bad");
+ ok(pos == 0, "szApiHostName '%s' should be szHostNameNew '%s'.\n", szApiHostName, szHostNameNew);
+
+ pos = strcmp(szHostNameNew, hostbuffer);
+ printf("The test results were '%s'.\n", pos==0 ? "good" : "bad");
+ ok(pos == 0, "hostbuffer '%s' should have been szHostNameNew '%s'.\n", hostbuffer, szHostNameNew);
+
+ /* Reset the original registry entry */
+ cbData = strlen(szHostNameOld) + 1;
+
+ Error = RegSetValueExA(hKeyHN, "Hostname", 0, REG_SZ, (LPBYTE)szHostNameOld, cbData);
+ ok(Error == ERROR_SUCCESS, "Error resetting new registry value back (%ld).\n", GetLastError());
+
+/*============ Winsock Checks ===============*/
+
+ /* Start up Winsock to use gethostname() */
+ iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
+ ok(iResult == 0, "Error occurred starting Winsock");
+ if (iResult != 0)
+ goto Cleanup;
+
+ /* Retrieve gethostname() */
+ hnError = gethostname(hostbuffer, sizeof(hostbuffer));
+ ok(!hnError, "Winsock gethostname() Error is '%d'.\n", WSAGetLastError());
+
+ /* Display results */
+ if (!hnError)
+ printf("Winsock gethostname() is '%s'.\n", hostbuffer);
+
+ pos = strcmp(szHostNameOld, hostbuffer);
+ printf("The test results were '%s'.\n", pos==0 ? "good" : "bad");
+ ok(pos == 0, "szHostNameOld '%s' should be hostbuffer '%s'.\n", szHostNameOld, hostbuffer);
+
+ /* Change Hostname in the Registry */
+ szHostNameNew[0] = ANSI_NULL;
+ strcat(szHostNameNew, "ROSHOSTNAME1");
+ cbData = strlen(szHostNameNew) + 1;
+
+ Error = RegSetValueExA(hKeyHN, "Hostname", 0, REG_SZ, (LPBYTE)szHostNameNew, cbData);
+ ok(Error == ERROR_SUCCESS, "Error setting new registry value (%ld).\n", GetLastError());
+
+ /* Retrieve gethostname() */
+ hnError = gethostname(hostbuffer, sizeof(hostbuffer));
+ ok(!hnError, "Winsock gethostname() Error is '%d'.\n", WSAGetLastError());
+
+ /* Display results */
+ if (!hnError)
+ printf("Winsock gethostname() is '%s'.\n", hostbuffer);
+
+ pos = strcmp(szHostNameNew, hostbuffer);
+ printf("The test results were '%s'.\n", pos==0 ? "good" : "bad");
+ ok(pos == 0, "szHostNameNew '%s' should be hostbuffer '%s'.\n", szHostNameNew, hostbuffer);
+
+ /* Reset the original registry entry */
+ cbData = strlen(szHostNameOld) + 1;
+
+ Error = RegSetValueExA(hKeyHN, "Hostname", 0, REG_SZ, (LPBYTE)szHostNameOld, cbData);
+ ok(Error == ERROR_SUCCESS, "Error resetting new registry value back (%ld).\n", GetLastError());
+
+ /* Retrieve gethostname() */
+ hnError = gethostname(hostbuffer, sizeof(hostbuffer));
+ ok(!hnError, "Winsock gethostname() Error is '%d'.\n", WSAGetLastError());
+
+ /* Display results */
+ if (!hnError)
+ printf("Winsock gethostname() is '%s'.\n", hostbuffer);
+
+ pos = strcmp(szHostNameOld, hostbuffer);
+ printf("The test results were '%s'.\n", pos==0 ? "good" : "bad");
+ ok(pos == 0, "szHostNameOld '%s' should be hostbuffer '%s'.\n", szHostNameOld, hostbuffer);
+
+Cleanup:
+ iResult = WSACleanup();
+ ok(iResult == 0, "WSACleanup error occurred ending Winsock");
+
+ Error = RegCloseKey(hKeyHN);
+ ok(Error == ERROR_SUCCESS, "Error closing registry key (%ld).\n", GetLastError());
+
+ return;
+}
projects / reactos.git / commitdiff