void PreparedStatement::init(thread_db* tdbb, Attachment* attachment, jrd_tra* transaction,
const Firebird::string& text, bool isInternalRequest)
{
AutoSetRestore<SSHORT> autoAttCharset(&attachment->att_charset,
(isInternalRequest ? CS_METADATA : attachment->att_charset));
request = NULL;
try
{
const Database& dbb = *tdbb->getDatabase();
const int dialect = isInternalRequest || (dbb.dbb_flags & DBB_DB_SQL_dialect_3) ?
SQL_DIALECT_V6 : SQL_DIALECT_V5;
request = DSQL_prepare(tdbb, attachment, transaction, text.length(), text.c_str(), dialect,
NULL, NULL, isInternalRequest);
const DsqlCompiledStatement* statement = request->getStatement();
if (statement->getSendMsg())
parseDsqlMessage(statement->getSendMsg(), inValues, inMetadata, inMessage);
if (statement->getReceiveMsg())
parseDsqlMessage(statement->getReceiveMsg(), outValues, outMetadata, outMessage);
}
catch (const Exception&)
{
if (request)
{
DSQL_free_statement(tdbb, request, DSQL_drop);
}
throw;
}
}
Firebird::string pagtype(UCHAR type)
{
// Print pretty name for database page type
const char* nameArray[pag_max + 1] = {
"purposely undefined",
"database header",
"page inventory",
"transaction inventory",
"pointer",
"data",
"index root",
"index B-tree",
"blob",
"generators",
"SCN inventory"
};
Firebird::string rc;
if (type < FB_NELEM(nameArray))
rc = nameArray[type];
else
rc.printf("unknown (%d)", type);
return rc;
}
bool readenv(const char* env_name, Firebird::PathName& env_value)
{
Firebird::string result;
bool rc = readenv(env_name, result);
env_value.assign(result.c_str(), result.length());
return rc;
}
// create directory for lock files and set appropriate access rights
void createLockDirectory(const char* pathname)
{
static bool errorLogged = false;
DWORD attr = GetFileAttributes(pathname);
DWORD errcode = 0;
if (attr == INVALID_FILE_ATTRIBUTES)
{
errcode = GetLastError();
if (errcode == ERROR_FILE_NOT_FOUND)
{
if (!CreateDirectory(pathname, NULL)) {
errcode = GetLastError();
}
else
{
adjustLockDirectoryAccess(pathname);
attr = GetFileAttributes(pathname);
if (attr == INVALID_FILE_ATTRIBUTES) {
errcode = GetLastError();
}
}
}
}
Firebird::string err;
if (attr == INVALID_FILE_ATTRIBUTES)
{
err.printf("Can't create directory \"%s\". OS errno is %d", pathname, errcode);
if (!errorLogged)
{
errorLogged = true;
gds__log(err.c_str());
}
Firebird::fatal_exception::raise(err.c_str());
}
if (!(attr & FILE_ATTRIBUTE_DIRECTORY))
{
err.printf("Can't create directory \"%s\". File with same name already exists", pathname);
if (!errorLogged)
{
errorLogged = true;
gds__log(err.c_str());
}
Firebird::fatal_exception::raise(err.c_str());
}
if (attr & FILE_ATTRIBUTE_READONLY)
{
err.printf("Can't create directory \"%s\". Readonly directory with same name already exists", pathname);
if (!errorLogged)
{
errorLogged = true;
gds__log(err.c_str());
}
Firebird::fatal_exception::raise(err.c_str());
}
}
ModuleLoader::Module* ModuleLoader::loadModule(ISC_STATUS* status, const Firebird::PathName& modPath)
{
void* module = dlopen(modPath.nullStr(), FB_RTLD_MODE);
if (module == NULL)
{
if (status)
{
status[0] = isc_arg_gds;
status[1] = isc_random;
status[2] = isc_arg_string;
status[3] = (ISC_STATUS) dlerror();
status[4] = isc_arg_end;
}
return 0;
}
#ifdef DEBUG_THREAD_IN_UNLOADED_LIBRARY
Firebird::string command;
command.printf("echo +++ %s +++ >>/tmp/fbmaps;date >> /tmp/fbmaps;cat /proc/%d/maps >>/tmp/fbmaps",
modPath.c_str(), getpid());
system(command.c_str());
#endif
return FB_NEW_POOL(*getDefaultMemoryPool()) DlfcnModule(*getDefaultMemoryPool(), modPath, module);
}
TracePlugin* FB_CARG TraceFactoryImpl::trace_create(Firebird::IStatus* status, TraceInitInfo* initInfo)
{
Firebird::MasterInterfacePtr master;
const char* dbname = NULL;
try
{
master->upgradeInterface(initInfo, FB_TRACE_INIT_INFO_VERSION, upInfo);
dbname = initInfo->getDatabaseName();
if (!dbname)
dbname = "";
TracePluginConfig config;
TraceCfgReader::readTraceConfiguration(initInfo->getConfigText(), dbname, config);
TraceDatabaseConnection* connection = initInfo->getConnection();
if (connection)
master->upgradeInterface(connection, FB_TRACE_CONNECTION_VERSION, upInfo);
if (!config.enabled ||
(config.connection_id && connection &&
(connection->getConnectionID() != SLONG(config.connection_id))))
{
return NULL; // Plugin is not needed, no error happened.
}
Firebird::AutoPtr<TraceLogWriter, Firebird::SimpleRelease<TraceLogWriter> >
logWriter(initInfo->getLogWriter());
if (logWriter)
config.log_filename = "";
return new TracePluginImpl(config, initInfo); // Everything is ok, we created a plugin
}
catch (Firebird::Exception& ex)
{
// put error into trace log
TraceLogWriter* logWriter = initInfo->getLogWriter();
if (logWriter)
{
master->upgradeInterface(logWriter, FB_TRACE_LOG_WRITER_VERSION, upInfo);
const char* strEx = TracePluginImpl::marshal_exception(ex);
Firebird::string err;
if (dbname)
err.printf("Error creating trace session for database \"%s\":\n%s\n", dbname, strEx);
else
err.printf("Error creating trace session for service manager attachment:\n%s\n", strEx);
logWriter->write(err.c_str(), err.length());
logWriter->release();
}
else
ex.stuffException(status);
}
return NULL;
}
void prepareName(Firebird::string& s, char c)
{
for (unsigned i = 0; i < s.length(); ++i)
{
if (s[i] == c)
{
s.insert(i++, 1, c);
}
}
}
void Stream::format(const char *pattern, ...)
{
Firebird::string temp;
va_list args;
va_start (args, pattern);
temp.vprintf(pattern, args);
va_end(args);
putSegment (temp.c_str());
}
void ExecuteStatement::open(thread_db* tdbb, jrd_nod* sql, SSHORT nVars, bool singleton)
{
SET_TDBB(tdbb);
Attachment* const attachment = tdbb->getAttachment();
jrd_tra* transaction = tdbb->getTransaction();
if (transaction->tra_callback_count >= MAX_CALLBACKS)
{
ERR_post(Arg::Gds(isc_exec_sql_max_call_exceeded));
}
varCount = nVars;
singleMode = singleton;
Firebird::string sqlText;
getString(tdbb, sqlText, EVL_expr(tdbb, sql), tdbb->getRequest());
memcpy(startOfSqlOperator, sqlText.c_str(), sizeof(startOfSqlOperator) - 1);
startOfSqlOperator[sizeof(startOfSqlOperator) - 1] = 0;
transaction->tra_callback_count++;
try
{
stmt = attachment->prepareStatement(tdbb, *tdbb->getDefaultPool(), transaction, sqlText);
if (stmt->getResultCount() == 0)
{
delete stmt;
stmt = NULL;
ERR_post(Arg::Gds(isc_exec_sql_invalid_req) << Arg::Str(startOfSqlOperator));
}
if (stmt->getResultCount() != varCount)
{
delete stmt;
stmt = NULL;
ERR_post(Arg::Gds(isc_wronumarg));
}
resultSet = stmt->executeQuery(tdbb, transaction);
fb_assert(transaction == tdbb->getTransaction());
}
catch (const Firebird::Exception&)
{
transaction->tra_callback_count--;
throw;
}
transaction->tra_callback_count--;
}
void* DlfcnModule::findSymbol(const Firebird::string& symName)
{
void* result = dlsym(module, symName.c_str());
if (result == NULL)
{
Firebird::string newSym ='_' + symName;
result = dlsym(module, newSym.c_str());
}
return result;
}
void iscDbLogStatus(const TEXT* text, Firebird::IStatus* status)
{
const TEXT* hdr = NULL;
Firebird::string buf;
if (text)
{
buf = "Database: ";
buf += text;
hdr = buf.c_str();
}
iscLogStatus(hdr, status);
}
Firebird::string Stream::getFBString() const
{
Firebird::string string;
char *p = string.getBuffer (totalLength);
for (const Segment *segment = segments; segment; segment = segment->next)
{
memcpy (p, segment->address, segment->length);
p += segment->length;
}
fb_assert(p - string.begin() == totalLength);
return string;
}
// converts bytes to BASE64 representation
void base64(Firebird::string& b64, const Firebird::UCharBuffer& bin)
{
b64.erase();
const unsigned char* f = bin.begin();
for (int i = bin.getCount(); i > 0; i -= 3, f += 3)
{
if (i >= 3)
{
const ULONG l = (ULONG(f[0]) << 16) | (ULONG(f[1]) << 8) | f[2];
b64 += conv_bin2ascii(l >> 18);
b64 += conv_bin2ascii(l >> 12);
b64 += conv_bin2ascii(l >> 6);
b64 += conv_bin2ascii(l);
}
else
{
ULONG l = ULONG(f[0]) << 16;
if (i == 2)
l |= (ULONG(f[1]) << 8);
b64 += conv_bin2ascii(l >> 18);
b64 += conv_bin2ascii(l >> 12);
b64 += (i == 1 ? '=' : conv_bin2ascii(l >> 6));
b64 += '=';
}
}
static void alice_output(bool error, const SCHAR* format, ...)
{
AliceGlobals* tdgbl = AliceGlobals::getSpecific();
va_list arglist;
va_start(arglist, format);
Firebird::string buf;
buf.vprintf(format, arglist);
va_end(arglist);
if (error)
tdgbl->uSvc->outputError(buf.c_str());
else
tdgbl->uSvc->outputVerbose(buf.c_str());
}
static void stuff_stack_trace(const jrd_req* request)
{
Firebird::string sTrace;
bool isEmpty = true;
for (const jrd_req* req = request; req; req = req->req_caller)
{
const JrdStatement* statement = req->getStatement();
Firebird::string name;
if (statement->triggerName.length())
{
name = "At trigger '";
name += statement->triggerName.c_str();
}
else if (statement->procedure)
{
name = statement->parentStatement ? "At sub procedure '" : "At procedure '";
name += statement->procedure->getName().toString().c_str();
}
else if (statement->function)
{
name = statement->parentStatement ? "At sub function '" : "At function '";
name += statement->function->getName().toString().c_str();
}
if (! name.isEmpty())
{
name.trim();
if (sTrace.length() + name.length() + 2 > MAX_STACK_TRACE)
break;
if (isEmpty)
{
isEmpty = false;
sTrace += name + "'";
}
else {
sTrace += "\n" + name + "'";
}
if (req->req_src_line)
{
Firebird::string src_info;
src_info.printf(" line: %"ULONGFORMAT", col: %"ULONGFORMAT,
req->req_src_line, req->req_src_column);
if (sTrace.length() + src_info.length() > MAX_STACK_TRACE)
break;
sTrace += src_info;
}
}
}
if (!isEmpty)
ERR_post_nothrow(Arg::Gds(isc_stack_trace) << Arg::Str(sTrace));
}
ISC_STATUS API_ROUTINE isc_delete_user(ISC_STATUS* status, const USER_SEC_DATA* input_user_data)
{
/**************************************
*
* i s c _ d e l e t e _ u s e r
*
**************************************
*
* Functional description
* Deletes a user from the server's security
* database.
* Return 0 if the user was deleted
*
* Return > 0 if any error occurs.
*
**************************************/
Auth::StackUserData userInfo;
userInfo.op = Auth::DEL_OPER;
Firebird::LocalStatus s;
Firebird::CheckStatusWrapper statusWrapper(&s);
if (input_user_data->user_name)
{
Firebird::string work = input_user_data->user_name;
if (work.length() > USERNAME_LENGTH) {
return user_error(status, isc_usrname_too_long);
}
Firebird::string::size_type l = work.find(' ');
if (l != Firebird::string::npos) {
work.resize(l);
}
userInfo.user.set(&statusWrapper, work.c_str());
Firebird::check(&statusWrapper);
userInfo.user.setEntered(&statusWrapper, 1);
Firebird::check(&statusWrapper);
}
else {
return user_error(status, isc_usrname_required);
}
return executeSecurityCommand(status, input_user_data, userInfo);
}
// static function
bool Switches::matchSwitch(const Firebird::string& sw, const char* target, size_t n)
{
/**************************************
*
* m a t c h S w i t c h
*
**************************************
*
* Functional description
* Returns true if switch matches target
*
**************************************/
if (n < sw.length())
{
return false;
}
n = sw.length();
return memcmp(sw.c_str(), target, n) == 0;
}
// Lookup and format message. Return as much of formatted string as fits in caller's buffer.
int fb_msg_format(void* handle, USHORT facility, USHORT number, unsigned int bsize, TEXT* buffer,
const MsgFormat::SafeArg& arg)
{
// The field MESSAGES.TEXT is 118 bytes long.
int total_msg = 0;
char msg[120] = "";
const int n = gds__msg_lookup(handle, facility, number, sizeof(msg), msg, NULL);
if (n > 0 && unsigned(n) < sizeof(msg))
{
// Shameful bridge, gds__msg_format emulation for old format messages.
if (strchr(msg, '%'))
{
const TEXT* rep[5];
arg.dump(rep, 5);
total_msg = fb_utils::snprintf(buffer, bsize, msg, rep[0], rep[1], rep[2], rep[3], rep[4]);
}
else
total_msg = MsgPrint(buffer, bsize, msg, arg);
}
else
{
Firebird::string s;
s.printf("can't format message %d:%d -- ", facility, number);
if (n == -1)
s += "message text not found";
else if (n == -2)
{
s += "message file ";
s += fb_utils::getPrefix(Firebird::DirType::FB_DIR_MSG, MSG_FILE).ToString();
s += " not found";
}
else
{
fb_utils::snprintf(buffer, bsize, "message system code %d", n);
s += buffer;
}
total_msg = s.copyTo(buffer, bsize);
}
return (n > 0 ? total_msg : -total_msg);
}
// fetch password from file
FetchPassResult fetchPassword(const Firebird::PathName& name, const char*& password)
{
InputFile file(name);
if (!file)
{
return FETCH_PASS_FILE_OPEN_ERROR;
}
Firebird::string pwd;
if (! pwd.LoadFromFile(file.getStdioFile()))
{
return ferror(file.getStdioFile()) ? FETCH_PASS_FILE_READ_ERROR : FETCH_PASS_FILE_EMPTY;
}
// this is planned leak of a few bytes of memory in utilities
char* pass = FB_NEW_POOL(*getDefaultMemoryPool()) char[pwd.length() + 1];
pwd.copyTo(pass, pwd.length() + 1);
password = pass;
return FETCH_PASS_OK;
}
ModuleLoader::Module* ModuleLoader::loadModule(const Firebird::PathName& modPath)
{
void* module = dlopen(modPath.nullStr(), FB_RTLD_MODE);
if (module == NULL)
{
#ifdef DEV_BUILD
// gds__log("loadModule failed loading %s: %s", modPath.c_str(), dlerror());
#endif
return 0;
}
#ifdef DEBUG_THREAD_IN_UNLOADED_LIBRARY
Firebird::string command;
command.printf("echo +++ %s +++ >>/tmp/fbmaps;date >> /tmp/fbmaps;cat /proc/%d/maps >>/tmp/fbmaps",
modPath.c_str(), getpid());
system(command.c_str());
#endif
return FB_NEW_POOL(*getDefaultMemoryPool()) DlfcnModule(module);
}
size_t PAR_name(CompilerScratch* csb, Firebird::string& name)
{
/**************************************
*
* P A R _ n a m e
*
**************************************
*
* Functional description
* Parse a counted string of virtually unlimited size
* (up to 64K, actually <= 255), returning count.
*
**************************************/
size_t l = csb->csb_blr_reader.getByte();
char* s = name.getBuffer(l);
while (l--)
*s++ = csb->csb_blr_reader.getByte();
return name.length();
}
void* DlfcnModule::findSymbol(const Firebird::string& symName)
{
void* result = dlsym(module, symName.c_str());
if (!result)
{
Firebird::string newSym = '_' + symName;
result = dlsym(module, newSym.c_str());
}
#ifdef HAVE_DLADDR
if (!PathUtils::isRelative(fileName))
{
Dl_info info;
if (!dladdr(result, &info))
return NULL;
if (fileName != info.dli_fname)
return NULL;
}
#endif
return result;
}
void ExecuteStatement::getString(thread_db* tdbb,
Firebird::string& sql,
const dsc* desc,
const jrd_req* request)
{
MoveBuffer buffer;
UCHAR* ptr = NULL;
const SSHORT len = (desc && !(request->req_flags & req_null)) ?
MOV_make_string2(tdbb, desc, desc->getTextType(), &ptr, buffer) : 0; // !!! How call Msgs ?
if (!ptr)
{
ERR_post(Arg::Gds(isc_exec_sql_invalid_arg));
}
sql.assign((const char*) ptr, len);
}
//***************
// r e a d e n v
//***************
// Goes to read directly the environment variables from the operating system on Windows
// and provides a stub for UNIX.
bool readenv(const char* env_name, Firebird::string& env_value)
{
#ifdef WIN_NT
const DWORD rc = GetEnvironmentVariable(env_name, NULL, 0);
if (rc)
{
env_value.reserve(rc - 1);
DWORD rc2 = GetEnvironmentVariable(env_name, env_value.begin(), rc);
if (rc2 < rc && rc2 != 0)
{
env_value.recalculate_length();
return true;
}
}
#else
const char* p = getenv(env_name);
if (p)
return env_value.assign(p).length() != 0;
#endif
// Not found, clear the output var.
env_value.begin()[0] = 0;
env_value.recalculate_length();
return false;
}
void exactNumericToStr(SINT64 value, int scale, Firebird::string& target, bool append)
{
if (value == 0)
{
if (append)
target.append("0", 1);
else
target.assign("0", 1);
return;
}
const int MAX_SCALE = 25;
const int MAX_BUFFER = 50;
if (scale < -MAX_SCALE || scale > MAX_SCALE)
{
fb_assert(false);
return; // throw exception here?
}
const bool neg = value < 0;
const bool dot = scale < 0; // Need the decimal separator or not?
char buffer[MAX_BUFFER];
int iter = MAX_BUFFER;
buffer[--iter] = '\0';
if (scale > 0)
{
while (scale-- > 0)
buffer[--iter] = '0';
}
bool dot_used = false;
FB_UINT64 uval = neg ? FB_UINT64(-(value + 1)) + 1 : value; // avoid problems with MIN_SINT64
while (uval != 0)
{
buffer[--iter] = static_cast<char>(uval % 10) + '0';
uval /= 10;
if (dot && !++scale)
{
buffer[--iter] = '.';
dot_used = true;
}
}
if (dot)
{
// if scale > 0 we have N.M
// if scale == 0 we have .M and we need 0.M
// if scale < 0 we have pending zeroes and need 0.{0+}M
if (!dot_used)
{
while (scale++ < 0)
buffer[--iter] = '0';
buffer[--iter] = '.';
buffer[--iter] = '0';
}
else if (!scale)
buffer[--iter] = '0';
}
if (neg)
buffer[--iter] = '-';
const FB_SIZE_T len = MAX_BUFFER - iter - 1;
if (append)
target.append(buffer + iter, len);
else
target.assign(buffer + iter, len);
}
int CLIB_ROUTINE main( int argc, char **argv)
{
/**************************************
*
* m a i n
*
**************************************
*
* Functional description
* If there is no command line, prompt for one, read it
* and make an artificial argc/argv. Otherwise, pass
* the specified argc/argv to IBMGR_exec_line (see below).
*
**************************************/
fprintf(stderr, "*** fbmgr is deprecated, will be removed soon ***\n");
gds__log("*** fbmgr is deprecated, will be removed soon ***");
// Let's see if we have something in environment variables
Firebird::string user, password;
fb_utils::readenv(ISC_USER, user);
fb_utils::readenv(ISC_PASSWORD, password);
Firebird::string host;
// MMM - do not allow to change host now
//fb_utils::readenv("ISC_HOST", host);
TEXT msg[MSG_LEN];
// Let's get a real user name. This info is used by
// START server command. Because server is not running
// we can not check the password, thus we require a
// real user to be root or FIREBIRD_USER_NAME or
// INTERBASE_USER_NAME or INTERBASE_USER_SHORT
const struct passwd* pw = getpwuid(getuid());
if (pw == NULL)
{
perror("getpwuid");
SRVRMGR_msg_get(MSG_GETPWFAIL, msg);
fprintf(OUTFILE, "%s\n", msg);
exit(FINI_ERROR);
}
strcpy(ibmgr_data.real_user, pw->pw_name);
if (!strcmp(pw->pw_name, "root") ||
!strcmp(pw->pw_name, FIREBIRD_USER_NAME) ||
!strcmp(pw->pw_name, INTERBASE_USER_NAME) ||
!strcmp(pw->pw_name, INTERBASE_USER_SHORT))
{
strcpy(ibmgr_data.user, SYSDBA_USER_NAME);
}
else
copy_str_upper(ibmgr_data.user, pw->pw_name);
if (user.length())
copy_str_upper(ibmgr_data.user, user.c_str());
if (password.length())
strcpy(ibmgr_data.password, password.c_str());
else
ibmgr_data.password[0] = '\0';
if (host.length())
strcpy(ibmgr_data.host, host.c_str());
else
strcpy(ibmgr_data.host, "localhost");
// Shutdown is not in progress and we are not attached to service yet.
// But obviously we will need attachment.
ibmgr_data.shutdown = false;
ibmgr_data.attached = 0;
ibmgr_data.reattach |= (REA_HOST | REA_USER | REA_PASSWORD);
// No pidfile by default
ibmgr_data.pidfile[0] = 0;
// Special case a solitary -z switch.
// Print the version and then drop into prompt mode.
if (argc == 2 && *argv[1] == '-' && (argv[1][1] == 'Z' || argv[1][1] == 'z'))
{
parse_cmd_line(argc, argv, false);
argc--;
}
SSHORT ret;
if (argc > 1)
{
ret = parse_cmd_line(argc, argv, true);
if (ret == FB_SUCCESS)
{
ret = SRVRMGR_exec_line(&ibmgr_data);
if (ret)
{
SRVRMGR_msg_get(ret, msg);
fprintf(OUTFILE, "%s\n", msg);
}
// We also need to check the shutdown flag here (if operation was
// -shut -[noat|notr]) and, depending on what we want to do, either
// wait here on some sort of a shutdown event, or go to the prompt mode
SRVRMGR_cleanup(&ibmgr_data);
exit(FINI_OK);
}
else if (ret != ACT_PROMPT)
exit(FINI_OK);
}
int local_argc;
SCHAR* local_argv[MAXARGS];
TEXT stuff[MAXSTUFF];
for (;;)
{
if (get_line(&local_argc, local_argv, stuff))
break;
if (local_argc > 1)
{
ret = parse_cmd_line(local_argc, local_argv, false);
if (ret == ACT_QUIT)
break;
if (ret == FB_SUCCESS)
{
ret = SRVRMGR_exec_line(&ibmgr_data);
if (ret)
{
SRVRMGR_msg_get(ret, msg);
fprintf(OUTFILE, "%s\n", msg);
}
}
}
}
SRVRMGR_cleanup(&ibmgr_data);
exit(FINI_OK);
}
qli_tok* LEX_token()
{
/**************************************
*
* L E X _ t o k e n
*
**************************************
*
* Functional description
* Parse and return the next token.
*
**************************************/
qli_tok* token = QLI_token;
TEXT* p = token->tok_string;
// Get next significant byte. If it's the last EOL of a blob, throw it away
SSHORT c;
for (;;)
{
c = skip_white();
if (c != '\n' || QLI_line->line_type != line_blob)
break;
qli_line* prior = QLI_line;
next_line(true);
if (prior == QLI_line)
break;
}
// If we hit end of file, make up a phoney token
if (!QLI_line)
{
const TEXT* q = eof_string;
while (*p++ = *q++);
token->tok_type = tok_eof;
token->tok_keyword = KW_none;
return NULL;
}
*p++ = c;
QLI_token->tok_position = QLI_line->line_position + QLI_line->line_ptr - QLI_line->line_data - 1;
// On end of file, generate furious but phone end of line tokens
char char_class = classes(c);
if (char_class & CHR_letter)
{
for (c = nextchar(true); classes(c) & CHR_ident; c = nextchar(true))
*p++ = c;
retchar();
token->tok_type = tok_ident;
}
else if (((char_class & CHR_digit) || c == '.') && scan_number(c, &p))
token->tok_type = tok_number;
else if (char_class & CHR_quote)
{
token->tok_type = tok_quoted;
while (true)
{
const SSHORT next = nextchar(false);
if (!next || next == '\n')
{
retchar();
IBERROR(63); // Msg 63 unterminated quoted string
break;
}
*p++ = next;
if ((p - token->tok_string) >= MAXSYMLEN)
ERRQ_msg_put(470, SafeArg() << MAXSYMLEN); // Msg 470 literal too long
// If there are 2 quotes in a row, interpret 2nd as a literal
if (next == c)
{
const SSHORT peek = nextchar(false);
retchar();
if (peek != c)
break;
nextchar(false);
}
}
}
else if (c == '\n')
{
// end of line, signal it properly with a phoney token.
token->tok_type = tok_eol;
--p;
const TEXT* q = eol_string;
while (*q)
*p++ = *q++;
}
else
{
token->tok_type = tok_punct;
*p++ = nextchar(true);
if (!HSH_lookup(token->tok_string, 2))
{
retchar();
--p;
}
}
token->tok_length = p - token->tok_string;
*p = '\0';
if (token->tok_string[0] == '$' && trans_limit < TRANS_LIMIT)
{
Firebird::string s;
if (fb_utils::readenv(token->tok_string + 1, s))
{
LEX_push_string(s.c_str());
++trans_limit;
token = LEX_token();
--trans_limit;
return token;
}
}
qli_symbol* symbol = HSH_lookup(token->tok_string, token->tok_length);
token->tok_symbol = symbol;
if (symbol && symbol->sym_type == SYM_keyword)
token->tok_keyword = (kwwords) symbol->sym_keyword;
else
token->tok_keyword = KW_none;
if (sw_trace)
puts(token->tok_string);
return token;
}
/**
typeBuffer
@brief Prints data, returned by service, using outputFunction
@param status
@param buf
@param offset
@param uData
@param outputFunction
@param functionArg
@param text
**/
static int typeBuffer(ISC_STATUS* status, char* buf, int offset,
Auth::UserData& uData, Firebird::IListUsers* callback,
Firebird::string& text)
{
const char* p = &buf[offset];
// Sanity checks
if (*p++ != isc_info_svc_get_users)
{
status[0] = isc_arg_gds;
status[1] = isc_gsec_params_not_allowed;
status[2] = isc_arg_end;
return -1;
}
FB_SIZE_T loop = static_cast<FB_SIZE_T>(isc_vax_integer (p, sizeof (USHORT)));
p += sizeof (USHORT);
if (p[loop] != isc_info_end)
{
status[0] = isc_arg_gds;
status[1] = isc_gsec_params_not_allowed;
status[2] = isc_arg_end;
return -1;
}
// No data - stop processing
if (! loop)
{
return -1;
}
// Old data left - use them
if (offset)
{
memmove(&buf[offset], p, loop + 1);
p = buf;
loop += offset;
offset = 0;
}
while (*p != isc_info_end)
{
fb_assert(p[loop] == isc_info_end);
try
{
switch (*p++)
{
case isc_spb_sec_username:
if (uData.user.get()[0])
{
LocalStatus status;
CheckStatusWrapper statusWrapper(&status);
if (callback)
{
setAttr(&statusWrapper, &uData);
check(&statusWrapper);
callback->list(&statusWrapper, &uData);
check(&statusWrapper);
}
uData.clear(&statusWrapper);
check(&statusWrapper);
}
parseString2(p, uData.user, loop);
break;
case isc_spb_sec_firstname:
parseString2(p, uData.first, loop);
break;
case isc_spb_sec_middlename:
parseString2(p, uData.middle, loop);
break;
case isc_spb_sec_lastname:
parseString2(p, uData.last, loop);
break;
case isc_spb_sec_groupid:
parseLong(p, uData.g, loop);
break;
case isc_spb_sec_userid:
parseLong(p, uData.u, loop);
break;
case isc_spb_sec_admin:
parseLong(p, uData.adm, loop);
break;
default: // give up - treat it as gsec error
text.assign(p - 1, loop + 1);
return -1;
}
}
catch (FB_SIZE_T newOffset)
{
memmove(buf, --p, newOffset);
return newOffset;
}
}
fb_assert(loop == 0);
return 0;
}
/**
callRemoteServiceManager
@brief Calls service manager to execute command,
specified in userInfo
@param status
@param handle
@param userInfo
@param outputFunction
@param functionArg
**/
void callRemoteServiceManager(ISC_STATUS* status,
isc_svc_handle handle,
Auth::UserData& userData,
Firebird::IListUsers* callback)
{
char spb_buffer[1024];
char* spb = spb_buffer;
const int op = userData.op;
if (op != Auth::DIS_OPER &&
op != Auth::OLD_DIS_OPER &&
op != Auth::MAP_SET_OPER &&
op != Auth::MAP_DROP_OPER &&
!userData.user.entered())
{
status[0] = isc_arg_gds;
status[1] = isc_gsec_switches_error;
status[2] = isc_arg_end;
return;
}
switch (op)
{
case Auth::ADD_OPER:
stuffSpbByte(spb, isc_action_svc_add_user);
userInfoToSpb(spb, userData);
break;
case Auth::MOD_OPER:
stuffSpbByte(spb, isc_action_svc_modify_user);
userInfoToSpb(spb, userData);
break;
case Auth::DEL_OPER:
stuffSpbByte(spb, isc_action_svc_delete_user);
stuffSpb2(spb, isc_spb_sec_username, userData.user.get());
if (userData.role.entered())
{
stuffSpb2(spb, isc_spb_sql_role_name, userData.role.get());
}
break;
case Auth::DIS_OPER:
case Auth::OLD_DIS_OPER:
{
char usersDisplayTag = 0;
checkServerUsersVersion(handle, usersDisplayTag);
stuffSpbByte(spb, usersDisplayTag);
}
if (userData.user.entered())
{
stuffSpb2(spb, isc_spb_sec_username, userData.user.get());
}
if (userData.role.entered())
{
stuffSpb2(spb, isc_spb_sql_role_name, userData.role.get());
}
break;
case Auth::MAP_SET_OPER:
stuffSpbByte(spb, isc_action_svc_set_mapping);
break;
case Auth::MAP_DROP_OPER:
stuffSpbByte(spb, isc_action_svc_drop_mapping);
break;
default:
status[0] = isc_arg_gds;
status[1] = isc_gsec_switches_error;
status[2] = isc_arg_end;
return;
}
if (userData.database.entered()) {
stuffSpb2(spb, isc_spb_dbname, userData.database.get());
}
fb_assert((size_t)(spb - spb_buffer) <= sizeof(spb_buffer));
if (isc_service_start(status, &handle, 0, static_cast<USHORT>(spb - spb_buffer), spb_buffer) != 0)
{
return;
}
spb = spb_buffer;
stuffSpbByte(spb, isc_info_svc_timeout);
stuffSpbShort(spb, 4);
stuffSpbLong(spb, 10);
char resultBuffer[RESULT_BUF_SIZE + 4];
Firebird::string text;
ISC_STATUS_ARRAY temp_status;
ISC_STATUS* local_status = status[1] ? temp_status : status;
fb_utils::init_status(local_status);
if (op == Auth::DIS_OPER || op == Auth::OLD_DIS_OPER)
{
const char request[] = {isc_info_svc_get_users};
int startQuery = 0;
Auth::StackUserData uData;
for (;;)
{
isc_resv_handle reserved = 0;
isc_service_query(local_status, &handle, &reserved, static_cast<USHORT>(spb - spb_buffer), spb_buffer,
sizeof(request), request, RESULT_BUF_SIZE - startQuery, &resultBuffer[startQuery]);
if (local_status[1])
{
return;
}
startQuery = typeBuffer(local_status, resultBuffer, startQuery, uData, callback, text);
if (startQuery < 0)
{
break;
}
}
if (uData.user.get()[0] && callback)
{
LocalStatus status;
CheckStatusWrapper statusWrapper(&status);
setAttr(&statusWrapper, &uData);
check(&statusWrapper);
callback->list(&statusWrapper, &uData);
check(&statusWrapper);
}
}
else
{
const char request = isc_info_svc_line;
for (;;)
{
isc_resv_handle reserved = 0;
isc_service_query(local_status, &handle, &reserved, 0, NULL,
1, &request, RESULT_BUF_SIZE, resultBuffer);
if (local_status[1])
{
return;
}
char *p = resultBuffer;
if (*p++ == isc_info_svc_line)
{
FB_SIZE_T len = static_cast<FB_SIZE_T>(isc_vax_integer(p, sizeof(USHORT)));
p += sizeof(USHORT);
if (len > RESULT_BUF_SIZE)
{
len = RESULT_BUF_SIZE;
}
if (!len)
{
if (*p == isc_info_data_not_ready)
continue;
if (*p == isc_info_end)
break;
}
p[len] = 0;
text += p;
}
}
}
if (! text.isEmpty())
{
local_status[0] = isc_arg_interpreted;
// strdup - memory leak in case of errors
local_status[1] = reinterpret_cast<ISC_STATUS>(strdup(text.c_str()));
local_status[2] = isc_arg_end;
}
}
// allow different users to read\write\delete files in lock directory
// in case of any error just log it and don't stop engine execution
void adjustLockDirectoryAccess(const char* pathname)
{
PSECURITY_DESCRIPTOR pSecDesc = NULL;
PSID pSID_Users = NULL;
PSID pSID_Administrators = NULL;
PACL pNewACL = NULL;
try
{
// We should pass root directory in format "C:\" into GetVolumeInformation().
// In case of pathname is not local folder (i.e. \\share\folder) let
// GetVolumeInformation() return an error.
Firebird::PathName root(pathname);
const Firebird::PathName::size_type pos = root.find(':', 0);
if (pos == 1)
{
root.erase(pos + 1, root.length());
PathUtils::ensureSeparator(root);
}
DWORD fsflags;
if (!GetVolumeInformation(root.c_str(), NULL, 0, NULL, NULL, &fsflags, NULL, 0))
Firebird::system_error::raise("GetVolumeInformation");
if (!(fsflags & FS_PERSISTENT_ACLS))
return;
// Adjust security for our new folder : allow BUILTIN\Users group to
// read\write\delete files
PACL pOldACL = NULL;
if (GetNamedSecurityInfo((LPSTR) pathname,
SE_FILE_OBJECT, DACL_SECURITY_INFORMATION,
NULL, NULL, &pOldACL, NULL,
&pSecDesc) != ERROR_SUCCESS)
{
Firebird::system_error::raise("GetNamedSecurityInfo");
}
SID_IDENTIFIER_AUTHORITY sidAuth = SECURITY_NT_AUTHORITY;
if (!AllocateAndInitializeSid(&sidAuth, 2, SECURITY_BUILTIN_DOMAIN_RID,
DOMAIN_ALIAS_RID_USERS, 0, 0, 0, 0, 0, 0, &pSID_Users))
{
Firebird::system_error::raise("AllocateAndInitializeSid");
}
if (!AllocateAndInitializeSid(&sidAuth, 2, SECURITY_BUILTIN_DOMAIN_RID,
DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &pSID_Administrators))
{
Firebird::system_error::raise("AllocateAndInitializeSid");
}
EXPLICIT_ACCESS eas[2];
memset(eas, 0, sizeof(eas));
eas[0].grfAccessPermissions = FILE_GENERIC_READ | FILE_GENERIC_WRITE | DELETE;
eas[0].grfAccessMode = GRANT_ACCESS;
eas[0].grfInheritance = SUB_OBJECTS_ONLY_INHERIT;
eas[0].Trustee.TrusteeForm = TRUSTEE_IS_SID;
eas[0].Trustee.TrusteeType = TRUSTEE_IS_GROUP;
eas[0].Trustee.ptstrName = (LPSTR) pSID_Users;
eas[1].grfAccessPermissions = FILE_GENERIC_READ | FILE_GENERIC_WRITE | DELETE;
eas[1].grfAccessMode = GRANT_ACCESS;
eas[1].grfInheritance = SUB_OBJECTS_ONLY_INHERIT;
eas[1].Trustee.TrusteeForm = TRUSTEE_IS_SID;
eas[1].Trustee.TrusteeType = TRUSTEE_IS_GROUP;
eas[1].Trustee.ptstrName = (LPSTR) pSID_Administrators;
if (SetEntriesInAcl(2, eas, pOldACL, &pNewACL) != ERROR_SUCCESS)
Firebird::system_error::raise("SetEntriesInAcl");
if (SetNamedSecurityInfo((LPSTR) pathname,
SE_FILE_OBJECT, DACL_SECURITY_INFORMATION,
NULL, NULL, pNewACL, NULL) != ERROR_SUCCESS)
{
Firebird::system_error::raise("SetNamedSecurityInfo");
}
}
catch (const Firebird::Exception& ex)
{
Firebird::string str;
str.printf("Error adjusting access rights for folder \"%s\" :", pathname);
iscLogException(str.c_str(), ex);
}
if (pSID_Users) {
FreeSid(pSID_Users);
}
if (pSID_Administrators) {
FreeSid(pSID_Administrators);
}
if (pNewACL) {
LocalFree(pNewACL);
}
if (pSecDesc) {
LocalFree(pSecDesc);
}
}
