// Serves a page by interpreting command codes, processing script commands,
// and handling variable substitution. Any variables provided in the override_list
// will take precedence over variables of the same name defined in the page.
int ServePageWithOverride(char *page, int page_size, PageVar *override_list) {
// Initialize varlist
PageVar *varlist = calloc(sizeof(PageVar), 1);
VerifyPointerOrTerminate(varlist, "VarList initialization");
in_a_box = 0;
cgc_memset(line, '\0', sizeof(line));
line_length = 0;
#ifdef PATCHED
if (page == NULL) {
goto error;
}
#endif
while ((*page != '\0')&&(page < page + page_size)) {
if (*page == '~') {
// Command character, process command
page++;
switch (*page) {
case 't': {
for (int i=0; i<4; i++) {
OutputChar(' ');
}
break;
}
case 'n': {
FlushOutput();
break;
}
case '[': {
OutputChar('[');
break;
}
case ']': {
OutputChar(']');
break;
}
case '~': {
OutputChar('~');
break;
}
case '#': {
OutputChar('#');
break;
}
default: {
printf("ERROR: Invalid control code\n");
goto error;
}
}
page++;
} else if (*page == '[') {
// Script tag, find closing tag and process script
char *close = ++page;
while (*close != ']' && *close != '\0') close++;
if (*close == '\0') {
goto error;
}
// Process script commands
if (strncmp(page, "line", cgc_strlen("line")) == 0) {
page += cgc_strlen("line");
if (*page != ':') {
goto error;
}
char c = *(++page);
if (*(++page) != ':') {
goto error;
}
int length = atoi(++page);
for (int i = 0; i < length; i++) {
OutputChar(c);
}
page = close + 1;
} else if (strncmp(page, "var", cgc_strlen("var")) == 0) {
AddPageVar(varlist, page);
page = close + 1;
} else if (strncmp(page, "box", cgc_strlen("box")) == 0) {
in_a_box = 1;
FlushOutput();
for (int i = 0; i < 80; i++) {
putc('*');
}
printf("\n");
page += 4;
}
} else if (*page == ']') {
page++;
if (in_a_box) {
in_a_box = 0;
FlushOutput();
for (int i = 0; i < 80; i++) {
putc('*');
}
printf("\n");
} else {
goto error;
}
} else if (*page == '#') {
// Variable substitution
char *end = ++page;
while (*end != '\0' && *end != '#') { end++; }
if (*end != '#') {
goto error;
}
PageVar *var = NULL;
// Check for overridden variables
if (override_list != NULL) {
var = GetPageVar(override_list, page, end);
}
// Fall back to default values if override doesn't exist
if (var == NULL) {
var = GetPageVar(varlist, page, end);
}
// If a value has been found, output it
if (var != NULL) {
OutputStr(var->value);
}
page = end + 1;
} else {
// Normal character, send to output
OutputChar(*page);
page++;
}
}
if (line_length != 0) {
FlushOutput();
}
DestroyVarList(varlist);
DestroyVarList(override_list);
return 0;
error:
printf("ERROR: Invalid syntax\n");
DestroyVarList(varlist);
DestroyVarList(override_list);
return -1;
}
int LoadPrimeNet (void)
{
static int RAS_NOT_AVAILABLE = 0;
static HMODULE HRAS = 0;
static DWORD (APIENTRY *RAS_ENUM)(LPRASCONNA, LPDWORD, LPDWORD);
static DWORD (APIENTRY *RAS_STAT)(HRASCONN, LPRASCONNSTATUSA);
RASCONN connections[10];
DWORD bufsize;
DWORD i, num_connections;
DWORD ret;
/* Special handling prior to first primenet call. */
/* Init Winsock, requesting version 1.1 */
if (! SOCKETS_INITIALIZED) {
static WSADATA zz;
int res;
res = WSAStartup (MAKEWORD (1, 1), &zz);
if (res != 0) {
char buf[80];
sprintf (buf, "ERROR: Winsock initialization returned %d.\n", res);
OutputStr (COMM_THREAD_NUM, buf);
return (FALSE);
}
SOCKETS_INITIALIZED = 1;
}
/* If we're not using a dial-up connection, let primenet try */
/* to contact the server. */
if (!DIAL_UP) return (TRUE);
/* Since Windows 95 can bring up a "Connect To" dialog box */
/* on any call to primenet, we try to make sure we are */
/* already connected before we call primenet. Otherwise, if */
/* no one is at the computer to respond to the "Connect To" */
/* dialog, the thread hangs until some one does respond. */
/* RAS calls, see below, is no longer the MS-prefered method of detecting */
/* an Internet connection. Starting in version 22.10 we offer a way for */
/* for users to use the prefered wininet.dll method. */
/* InternetGetConnectedState should return FALSE if the modem is not */
/* connected to the Internet. */
/* Starting in version 25.1, this became the default detection method. */
if (IniGetInt (INI_FILE, "AlternateModemDetection", 1)) {
DWORD flags;
if (InternetGetConnectedState (&flags, 0)) return (TRUE);
goto no_modem_connection;
}
// Unfortunately, the RASAPI32.DLL is not installed on every
// system. We must load it dynamically. If the RAS library
// is not found, let primenet.dll try to contact the server.
if (RAS_NOT_AVAILABLE) return (TRUE);
if (HRAS == 0) {
RAS_NOT_AVAILABLE = 1;
HRAS = LoadLibrary ("rasapi32.dll");
if (HRAS == 0) return (TRUE);
RAS_ENUM = (DWORD (APIENTRY *)(LPRASCONNA, LPDWORD, LPDWORD))
GetProcAddress (HRAS, "RasEnumConnectionsA");
if (RAS_ENUM == NULL) return (TRUE);
RAS_STAT = (DWORD (APIENTRY *)(HRASCONN, LPRASCONNSTATUSA))
GetProcAddress (HRAS, "RasGetConnectStatusA");
if (RAS_STAT == NULL) return (TRUE);
RAS_NOT_AVAILABLE = 0;
}
// Call RAS to see if there are any active connections to the Internet
connections[0].dwSize = sizeof (RASCONN);
bufsize = sizeof (connections);
ret = (*RAS_ENUM) ((RASCONN *) &connections, &bufsize, &num_connections);
// If RAS returns an error who knows what went wrong.
// Let primenet try to connect anyway.
if (ret) return (TRUE);
// See if any of these connections are really connected
for (i = 0; i < num_connections; i++) {
RASCONNSTATUS status;
status.dwSize = sizeof (RASCONNSTATUS);
ret = (*RAS_STAT) (connections[i].hrasconn, &status);
if (ret) continue;
if (status.rasconnstate == RASCS_Connected) return (TRUE);
}
// Print error message if no there are no connections
no_modem_connection:
OutputStr (COMM_THREAD_NUM, "Dial-up connection not active.\n");
return (FALSE);
}
void Service95 ()
{
char pathname[256];
char regkey[20]; /* Win9x registry name */
SC_HANDLE schSCManager = 0;
SC_HANDLE schService = 0;
HKEY hkey = 0;
DWORD rc, disposition;
/* In Windows 95/98/Me, call RegisterServiceProcess in the Kernel */
/* This will prevent prime95 from terminating on logoff. */
if (isWindows95 ()) {
HMODULE hlib;
DWORD (__stdcall *proc)(DWORD, DWORD);
hlib = LoadLibrary ("KERNEL32.DLL");
if (!hlib) {
OutputStr (MAIN_THREAD_NUM, "Unable to load KERNEL32.DLL\n");
goto done;
}
proc = (DWORD (__stdcall *)(DWORD, DWORD))
GetProcAddress (hlib, "RegisterServiceProcess");
if (proc == NULL)
OutputStr (MAIN_THREAD_NUM, "Unable to find RegisterServiceProcess\n");
else {
if (WINDOWS95_SERVICE)
rc = (*proc) (NULL, RSP_SIMPLE_SERVICE);
else
rc = (*proc) (NULL, RSP_UNREGISTER_SERVICE);
if (!rc)
OutputStr (MAIN_THREAD_NUM, "RegisterServiceProcess failed\n");
}
FreeLibrary (hlib);
}
/* Now we deal with making the registry entries correct for proper starting */
/* or not starting of the service. */
/* Get pathname of executable */
GetModuleFileName (NULL, pathname, sizeof (pathname));
/* In Win95/98/Me, we create a registry entry for each -A command line value */
/* We used to do this in WinNT/2000/XP, but now we just delete these old */
/* registry entries. */
if (WINDOWS95_A_SWITCH < 0)
strcpy (regkey, "Prime95");
else
sprintf (regkey, "Prime95-%d", WINDOWS95_A_SWITCH);
// For Windows 95/98/Me create a RunServices entry
if (isWindows95 ()) {
if (RegCreateKeyEx (
HKEY_LOCAL_MACHINE,
"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL,
&hkey,
&disposition) != ERROR_SUCCESS) {
OutputStr (MAIN_THREAD_NUM, "Can't create registry key.\n");
goto done;
}
/* Now create or delete an entry for prime95 */
if (WINDOWS95_SERVICE) {
if (WINDOWS95_A_SWITCH >= 0) {
char append[20];
sprintf (append, " -A%d", WINDOWS95_A_SWITCH);
strcat (pathname, append);
}
rc = RegSetValueEx (hkey, regkey, 0, REG_SZ,
(BYTE *) pathname, (DWORD) strlen (pathname) + 1);
if (rc != ERROR_SUCCESS) {
OutputStr (MAIN_THREAD_NUM, "Can't write registry value.\n");
goto done;
}
} else {
rc = RegDeleteValue (hkey, regkey);
if (rc != ERROR_SUCCESS && rc != ERROR_FILE_NOT_FOUND){
OutputStr (MAIN_THREAD_NUM, "Can't delete registry entry.\n");
goto done;
}
}
RegCloseKey (hkey);
hkey = 0;
}
// For Windows NT/2000/XP we call the service control manager to maintain the
// services database. If we don't have administrator privileges (can't open
// the service control manager) then simply create a registry entry to start
// the program at logon. So, attempt to open the service control manager on
// NULL = local machine, NULL = default database, all access required.
// Also Vista won't let services interact with the desktop, so we can't run
// as a service.
else if (isWindowsVista () ||
! (schSCManager = OpenSCManager (NULL, NULL,
SC_MANAGER_ALL_ACCESS))) {
if (RegCreateKeyEx (
HKEY_CURRENT_USER,
"Software\\Microsoft\\Windows\\CurrentVersion\\Run",
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL,
&hkey,
&disposition) != ERROR_SUCCESS) {
OutputStr (MAIN_THREAD_NUM, "Can't create registry key.\n");
goto done;
}
/* Now create or delete an entry for prime95 */
if (WINDOWS95_SERVICE) {
if (WINDOWS95_A_SWITCH >= 0) {
char append[20];
sprintf (append, " -A%d", WINDOWS95_A_SWITCH);
strcat (pathname, append);
}
rc = RegSetValueEx (hkey, regkey, 0, REG_SZ,
(BYTE *) pathname, (DWORD) strlen (pathname) + 1);
if (rc != ERROR_SUCCESS) {
OutputStr (MAIN_THREAD_NUM, "Can't write registry value.\n");
goto done;
}
} else {
rc = RegDeleteValue (hkey, regkey);
if (rc != ERROR_SUCCESS && rc != ERROR_FILE_NOT_FOUND){
OutputStr (MAIN_THREAD_NUM, "Can't delete registry entry.\n");
goto done;
}
}
RegCloseKey (hkey);
hkey = 0;
}
// Make the necessary NT/2000/XP service control changes
else {
char servicename[80];
char displayname[80];
// Create the Windows NT service name and display name
IniGetString (LOCALINI_FILE, "ServiceName", servicename,
sizeof (servicename), NULL);
if (servicename[0] == 0) {
if (WINDOWS95_A_SWITCH < 0)
strcpy (servicename, "Prime95 Service");
else
sprintf (servicename, "Prime95 Service-%d",
WINDOWS95_A_SWITCH);
}
IniGetString (LOCALINI_FILE, "DisplayName", displayname,
sizeof (displayname), servicename);
// Create the service entry
if (WINDOWS95_SERVICE) {
schService = CreateService (
schSCManager, // SCManager database
servicename, // name of service
displayname, // display name
SERVICE_ALL_ACCESS, // desired access
SERVICE_INTERACTIVE_PROCESS |
SERVICE_WIN32_OWN_PROCESS, // service type
SERVICE_AUTO_START, // start type
SERVICE_ERROR_NORMAL, // error control type
pathname, // service's binary
NULL, // no load ordering
NULL, // no tag identifier
NULL, // no dependencies
NULL, // LocalSystem account
NULL); // no password
if (!schService) {
if (GetLastError () != ERROR_SERVICE_EXISTS)
OutputStr (MAIN_THREAD_NUM, "Error creating service.\n");
goto done;
}
// Set description for Win2K and later
if (isWindows2000 ()) {
SERVICE_DESCRIPTION svc_desc;
svc_desc.lpDescription =
"GIMPS client to find large prime numbers";
ChangeServiceConfig2 (
schService,
SERVICE_CONFIG_DESCRIPTION,
&svc_desc);
}
}
// Remove the service entry
else {
schService = OpenService (
schSCManager,
servicename,
SERVICE_ALL_ACCESS);
if (!schService) {
if (GetLastError () != ERROR_SERVICE_DOES_NOT_EXIST)
OutputStr (MAIN_THREAD_NUM, "Error opening service.\n");
goto done;
}
if (! DeleteService (schService)) {
OutputStr (MAIN_THREAD_NUM, "Error deleting service.\n");
goto done;
}
}
/* Delete the old-style (version 21) Run entry for the current user */
if (RegCreateKeyEx (
HKEY_CURRENT_USER,
"Software\\Microsoft\\Windows\\CurrentVersion\\Run",
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL,
&hkey,
&disposition) == ERROR_SUCCESS) {
RegDeleteValue (hkey, regkey);
RegCloseKey (hkey);
hkey = 0;
}
}
/* For Windows NT/2000/XP delete the old-style (version 21) Run entry for */
/* the local machine */
if (! isWindows95 ()) {
if (RegCreateKeyEx (
HKEY_LOCAL_MACHINE,
"Software\\Microsoft\\Windows\\CurrentVersion\\Run",
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL,
&hkey,
&disposition) == ERROR_SUCCESS) {
RegDeleteValue (hkey, regkey);
RegCloseKey (hkey);
hkey = 0;
}
}
/* Now delete any shortcuts to the program. We do this so that as users */
/* upgrade from version 20 and try this menu choice they do not end up with */
/* both a registry entry and a StartUp menu shortcut. */
if (WINDOWS95_SERVICE) {
char buf[256];
DWORD type;
DWORD bufsize = sizeof (buf);
if (RegCreateKeyEx (
HKEY_CURRENT_USER,
"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders",
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL,
&hkey,
&disposition) != ERROR_SUCCESS)
goto done;
if (RegQueryValueEx (hkey, "Startup", NULL, &type,
(BYTE *) buf, &bufsize) == ERROR_SUCCESS &&
type == REG_SZ) {
strcat (buf, "\\prime95.lnk");
_unlink (buf);
}
}
// Cleanup and return
done: if (schService) CloseServiceHandle (schService);
if (schSCManager) CloseServiceHandle (schSCManager);
if (hkey) RegCloseKey (hkey);
}