示例#1
0
void
privsep_exec_set_env(FILE* fp, Env& env)
{
    char** env_array = env.getStringArray();
    for (char** ptr = env_array; *ptr != NULL; ptr++) {
        fprintf(fp, "exec-env<%lu>\n", (unsigned long)strlen(*ptr));
        fprintf(fp, "%s\n", *ptr);
    }
    deleteStringArray(env_array);
}
示例#2
0
static FILE *
my_popen_impl(ArgList &args,
              const char *mode,
              int want_stderr,
              uid_t privsep_uid,
              Env *env_ptr,
              bool drop_privs = true)
{
	char **string_array = args.GetStringArray();
	FILE *fp = my_popenv_impl(string_array, mode, want_stderr, privsep_uid, env_ptr, drop_privs);
	deleteStringArray(string_array);

	return fp;
}
示例#3
0
void
ArgList::InsertArg(char const *arg,int pos) {
	ASSERT(pos >= 0 && pos <= Count());

	int i;
	char **args_array = GetStringArray();

	args_list.Clear();
	for(i=0;args_array[i];i++) {
		if(i == pos) {
			args_list.Append(arg);
		}
		args_list.Append(args_array[i]);
	}
	if(i == pos) {
		args_list.Append(arg);
	}

	deleteStringArray(args_array);
}
示例#4
0
/** Parse the arguments line of an existing .condor.sub file, extracing
    the arguments we want to preserve when updating the .condor.sub file.
	@param subLine: the arguments line from the .condor.sub file
	@param shallowOpts: the condor_submit_dag shallow options
	@return 0 if successful, 1 if failed
*/
int
parseArgumentsLine( const MyString &subLine,
			SubmitDagShallowOptions &shallowOpts )
{
	const char *line = subLine.Value();
	const char *start = strchr( line, '"' );
	const char *end = strrchr( line, '"' );

	MyString arguments;
	if ( start && end ) {
		arguments = subLine.Substr( start - line, end - line );
	} else {
		fprintf( stderr, "Missing quotes in arguments line: <%s>\n",
					subLine.Value() );
		return 1;
	}

	ArgList arglist;
	MyString error;
	if ( !arglist.AppendArgsV2Quoted( arguments.Value(),
				&error ) ) {
		fprintf( stderr, "Error parsing arguments: %s\n", error.Value() );
		return 1;
	}

	for ( int argNum = 0; argNum < arglist.Count(); argNum++ ) {
		MyString strArg = arglist.GetArg( argNum );
		strArg.lower_case();
		char **args = arglist.GetStringArray();
		(void)parsePreservedArgs( strArg, argNum, arglist.Count(),
					args, shallowOpts);
		deleteStringArray(args);
	}

	return 0;
}
示例#5
0
void
UserProc::execute()
{
	ArgList new_args;
	char    **argv;
	char	**argp;
	char	**envp;
	sigset_t	sigmask;
	MyString	a_out_name;
	MyString	shortname;
	int		user_syscall_fd = -1;
	const	int READ_END = 0;
	const	int WRITE_END = 1;
	int		pipe_fds[2];
	FILE	*cmd_fp;
	char	buf[128];
	ReliSock	*new_reli = NULL;

	pipe_fds[0] = -1;
	pipe_fds[1] = -1;

	shortname.formatstr( "condor_exec.%d.%d", cluster, proc );
	a_out_name.formatstr( "%s/%s/%s", Execute, local_dir, shortname.Value() );

		// Set up arg vector according to class of job
	switch( job_class ) {

	  case CONDOR_UNIVERSE_STANDARD:
		if( pipe(pipe_fds) < 0 ) {
			EXCEPT( "pipe()" );}

			dprintf( D_ALWAYS, "Pipe built\n" );
		
			// The user process should not try to read commands from
			// 0, 1, or 2 since we'll be using the commands to redirect
			// those.
		if( pipe_fds[READ_END] < 14 ) {
			dup2( pipe_fds[READ_END], 14 );
			close( pipe_fds[READ_END] );
			pipe_fds[READ_END] = 14;
		}
		dprintf( D_ALWAYS, "New pipe_fds[%d,%d]\n", pipe_fds[0], pipe_fds[1] );
		sprintf( buf, "%d", pipe_fds[READ_END] );
		dprintf( D_ALWAYS, "cmd_fd = %s\n", buf );

		new_args.AppendArg(shortname);
		new_args.AppendArg("-_condor_cmd_fd");
		new_args.AppendArg(buf);
		break;

	  case CONDOR_UNIVERSE_PVM:
#if 1
		EXCEPT( "Don't know how to deal with PVM jobs" );
#else
		new_args.AppendArg(shortname);
		new_args.AppendArg("-1");
		new_args.AppendArg(in);
		new_args.AppendArg(out);
		new_args.AppendArg(err);
#endif
		break;

	  case CONDOR_UNIVERSE_VANILLA:
	  	if (privsep_enabled()) {
			EXCEPT("Don't know how to deal with Vanilla jobs");
		}
		new_args.AppendArg(shortname.Value());
		break;
	}

	new_args.AppendArgsFromArgList(args);

		// take care of USER_JOB_WRAPPER
	support_job_wrapper(a_out_name,&new_args);

	MyString exec_name;
	exec_name = a_out_name;

	// If privsep is turned on, then we need to use the PrivSep
	// Switchboard to launch the job
	//
	FILE* switchboard_in_fp;
	FILE* switchboard_err_fp;
	int switchboard_child_in_fd;
	int switchboard_child_err_fd;
	if (privsep_enabled()) {

		// create the pipes that we'll use to communicate
		//
		if (!privsep_create_pipes(switchboard_in_fp,
		                          switchboard_child_in_fd,
		                          switchboard_err_fp,
		                          switchboard_child_err_fd)) {
			EXCEPT("can't launch job: privsep_create_pipes failure");
		}
	}

	argv = new_args.GetStringArray();

		// Set an environment variable that tells the job where it may put scratch data
		// even if it moves to a different directory.

		// get the environment vector
	envp = env_obj.getStringArray();

		// We may run more than one of these, so each needs its own
		// remote system call connection to the shadow
	if( job_class == CONDOR_UNIVERSE_PVM ) {
		new_reli = NewConnection( v_pid );
		user_syscall_fd = new_reli->get_file_desc();
	}

		// print out arguments to execve
	dprintf( D_ALWAYS, "Calling execve( \"%s\"", exec_name.Value() );
	for( argp = argv; *argp; argp++ ) {							// argv
		dprintf( D_ALWAYS | D_NOHEADER, ", \"%s\"", *argp );
	}
	dprintf( D_ALWAYS | D_NOHEADER, ", 0" );
	for( argp = envp; *argp; argp++ ) {							// envp
		dprintf( D_ALWAYS | D_NOHEADER, ", \"%s\"", *argp );
	}
	dprintf( D_ALWAYS | D_NOHEADER, ", 0 )\n" );


	if( (pid = fork()) < 0 ) {
		EXCEPT( "fork" );
	}

	if( pid == 0 ) {	// the child

			// Block only these 3 signals which have special meaning for
			// checkpoint/restart purposes.  Leave other signals ublocked
			// so that if we get an exception during the restart process,
			// we will get a core file to debug.
		sigemptyset( &sigmask );
		// for some reason if we block these, the user process is unable
		// to unblock some or all of them.
#if 0
		sigaddset( &sigmask, SIGUSR1 );
		sigaddset( &sigmask, SIGUSR2 );
		sigaddset( &sigmask, SIGTSTP );
#endif
		sigprocmask( SIG_SETMASK, &sigmask, 0 );

			// renice
		renice_self( "JOB_RENICE_INCREMENT" );

			// make certain the syscall sockets which are being passed
			// to the user job are setup to be blocking sockets.  this
			// is done by calling timeout(0) CEDAR method.
			// we must do this because the syscall lib does _not_ 
			// expect to see any failures due to errno EAGAIN...
		if ( SyscallStream ) {
			SyscallStream->timeout(0);
		}
		if ( new_reli ) {
			new_reli->timeout(0);
		}

			// If I'm using privledge separation, connect to the procd.
			// we need to register a family with the procd for the newly
			// created process, so that the ProcD will allow us to send
			// signals to it
			//
		if (privsep_enabled() == true) {
			MyString procd_address;
			bool response;
			bool ret;
			ProcFamilyClient pfc;

			procd_address = get_procd_address();
			ret = pfc.initialize(procd_address.Value());
			if (ret == false) {
				EXCEPT("Failure to initialize the ProcFamilyClient object");
			}

			ret = pfc.register_subfamily(getpid(), getppid(), 60, response);

			if (ret == false) {
				EXCEPT("Could not communicate with procd. Aborting.");
			}

			if (response == false) {
				EXCEPT("Procd refused to register job subfamily. Aborting.");
			}
		}

			// If there is a requested coresize for this job, enforce it.
			// Do it before the set_priv_final to ensure root can alter 
			// the coresize to the requested amount. Otherwise, just
			// use whatever the current default is.
		if (coredump_limit_exists == TRUE) {
			limit( RLIMIT_CORE, coredump_limit, CONDOR_HARD_LIMIT, "max core size" );
		}

			// child process should have only it's submitting uid, and cannot
			// switch back to root or some other uid.  
			// It'd be nice to check for errors here, but
			// unfortunately, we can't, since this only returns the
			// previous priv state, not whether it worked or not. 
			//  -Derek Wright 4/30/98
		set_user_priv_final();

		switch( job_class ) {
		  
		  case CONDOR_UNIVERSE_STANDARD:
			// if we're using PrivSep, the chdir here could fail. instead,
			// we pass the job's IWD to the switchboard via pipe
			//
		  	if (!privsep_enabled()) {
				if( chdir(local_dir) < 0 ) {
					EXCEPT( "chdir(%s)", local_dir );
				}
			}
			close( pipe_fds[WRITE_END] );
			break;

		  case CONDOR_UNIVERSE_PVM:
			if( chdir(local_dir) < 0 ) {
				EXCEPT( "chdir(%s)", local_dir );
			}
			close( pipe_fds[WRITE_END] );
			dup2( user_syscall_fd, RSC_SOCK );
			break;

		  case CONDOR_UNIVERSE_VANILLA:
			set_iwd();
			open_std_file( 0 );
			open_std_file( 1 );
			open_std_file( 2 );

			(void)close( RSC_SOCK );
			(void)close( CLIENT_LOG );

			break;
		}

			// Make sure we're not root
		if( getuid() == 0 ) {
				// EXCEPT( "We're about to start as root, aborting." );
				// You can't see this error message at all.  So, just
				// exit(4), which is what EXCEPT normally gives. 
			exit( 4 );
		}

#if defined( LINUX ) && (defined(I386) || defined(X86_64))
		// adjust the execution domain of the child to be suitable for
		// checkpointing.
		patch_personality();
#endif 

			// if we're using privsep, we'll exec the PrivSep Switchboard
			// first, which is setuid; it will then setuid to the user we
			// give it and exec the real job
			//
		if (privsep_enabled()) {
			close(fileno(switchboard_in_fp));
			close(fileno(switchboard_err_fp));
			privsep_get_switchboard_command("exec",
			                                switchboard_child_in_fd,
			                                switchboard_child_err_fd,
			                                exec_name,
			                                new_args);
			deleteStringArray(argv);
			argv = new_args.GetStringArray();
		}

			// Everything's ready, start it up...
		errno = 0;
		execve( exec_name.Value(), argv, envp );

			// A successful call to execve() never returns, so it is an
			// error if we get here.  A number of errors are possible
			// but the most likely is that there is insufficient swap
			// space to start the new process.  We don't try to log
			// anything, since we have the UID/GID of the job's owner
			// and cannot write into the log files...
		exit( JOB_EXEC_FAILED );
	}

		// The parent

		// PrivSep - we have at this point only spawned the switchboard
		// with the "exec" command. we need to use our pipe to it in
		// order to tell it how to execute the user job, and then use
		// the error pipe to make sure everything worked
		//
	if (privsep_enabled()) {

		close(switchboard_child_in_fd);
		close(switchboard_child_err_fd);

		privsep_exec_set_uid(switchboard_in_fp, uid);
		privsep_exec_set_path(switchboard_in_fp, exec_name.Value());
		privsep_exec_set_args(switchboard_in_fp, new_args);
		privsep_exec_set_env(switchboard_in_fp, env_obj);
		privsep_exec_set_iwd(switchboard_in_fp, local_dir);
		privsep_exec_set_inherit_fd(switchboard_in_fp, pipe_fds[0]);
		privsep_exec_set_inherit_fd(switchboard_in_fp, RSC_SOCK);
		privsep_exec_set_inherit_fd(switchboard_in_fp, CLIENT_LOG);
		privsep_exec_set_is_std_univ(switchboard_in_fp);
		fclose(switchboard_in_fp);

		if (!privsep_get_switchboard_response(switchboard_err_fp)) {
			EXCEPT("error starting job: "
			           "privsep get_switchboard_response failure");
		}
	}

	dprintf( D_ALWAYS, "Started user job - PID = %d\n", pid );
	if( job_class != CONDOR_UNIVERSE_VANILLA ) {
			// Send the user process its startup environment conditions
		close( pipe_fds[READ_END] );
		cmd_fp = fdopen( pipe_fds[WRITE_END], "w" );
		dprintf( D_ALWAYS, "cmd_fp = %p\n", cmd_fp );

		if( is_restart() ) {
#if 1
			fprintf( cmd_fp, "restart\n" );
			dprintf( D_ALWAYS, "restart\n" );
#else
			fprintf( cmd_fp, "restart %s\n", target_ckpt );
			dprintf( D_ALWAYS, "restart %s\n", target_ckpt );
#endif
			fprintf( cmd_fp, "end\n" );
			dprintf( D_ALWAYS, "end\n" );
		} else {
			fprintf( cmd_fp, "end\n" );
			dprintf( D_ALWAYS, "end\n" );
		}
		fclose( cmd_fp );
	}

	deleteStringArray(argv);
	deleteStringArray(envp);
	state = EXECUTING;

	if( new_reli ) {
		delete new_reli;
	}

	// removed some vanilla-specific code here
	//
	ASSERT(job_class != CONDOR_UNIVERSE_VANILLA);
}
示例#6
0
bool LDLibraryUpdateInfo::parseUpdateLine(const char *updateLine)
{
	int partCount;
	char **updateParts = componentsSeparatedByString(updateLine, "\t",
		partCount);
	bool retValue = false;

	if (updateParts && partCount > 4)
	{
		if (stringHasPrefix(updateParts[0], "COMPLETE"))
		{
			m_updateType = LDLibraryFullUpdate;
		}
		else if (stringHasPrefix(updateParts[0], "UPDATE"))
		{
			m_updateType = LDLibraryPartialUpdate;
		}
		else if (stringHasPrefix(updateParts[0], "BASE"))
		{
			m_updateType = LDLibraryBaseUpdate;
		}
	}
	if (m_updateType != LDLibraryUnknownUpdate)
	{
		if (stringHasPrefix(updateParts[1], "ARJ"))
		{
			m_format = LDLibraryExeFormat;
		}
		else if (stringHasPrefix(updateParts[1], "ZIP"))
		{
			m_format = LDLibraryZipFormat;
		}
	}
	if (m_format != LDLibraryUnknownFormat)
	{
		m_date = copyString(updateParts[2]);
	}
	if (m_date && m_date[0])
	{
		m_url = copyString(updateParts[3]);
	}
	if (m_url && m_url[0])
	{
		char *spot = strrchr(m_url, '/');
		
		if (spot)
		{
			m_name = copyString(spot + 1);
			spot = strchr(m_name, '.');
			if (spot)
			{
				*spot = 0;
			}
			else
			{
				m_name[0] = 0;
			}
		}
	}
	if (m_name && m_name[0])
	{
		if (sscanf(updateParts[4], "%d", &m_size) == 1)
		{
			retValue = true;
		}
	}
	deleteStringArray(updateParts, partCount);
	return retValue;
}
示例#7
0
/**
 * merge_stderr_with_stdout is intended for clients of this function
 * that wish to have the old behavior, where stderr and stdout were
 * both added to the same StringList.
 */
int systemCommand( ArgList &args, priv_state priv, StringList *cmd_out, StringList * cmd_in,
		   StringList *cmd_err, bool merge_stderr_with_stdout)
{
	int result = 0;
	FILE *fp = NULL;
	FILE * fp_for_stdin = NULL;
	FILE * childerr = NULL;
	MyString line;
	char buff[1024];
	StringList *my_cmd_out = cmd_out;

	priv_state prev = PRIV_UNKNOWN;

	int stdout_pipes[2];
	int stdin_pipes[2];
	int pid;
	bool use_privsep = false;
	switch ( priv ) {
	case PRIV_ROOT:
		prev = set_root_priv();
		break;
	case PRIV_USER:
	case PRIV_USER_FINAL:
		prev = set_user_priv();
#if !defined(WIN32)
		if ( privsep_enabled() && (job_user_uid != get_condor_uid()) ) {
			use_privsep = true;
		}
#endif
		break;
	default:
		// Stay as Condor user
		;
	}
#if defined(WIN32)
	if((cmd_in != NULL) || (cmd_err != NULL))
	  {
	    vmprintf(D_ALWAYS, "Invalid use of systemCommand() in Windows.\n");
	    return -1;
	  }
	//if ( use_privsep ) {
	//	fp = privsep_popen(args, "r", want_stderr, job_user_uid);
	//}
	//else {
	fp = my_popen( args, "r", merge_stderr_with_stdout );
	//}
#else
	// The old way of doing things (and the Win32 way of doing
	//	things)
	// fp = my_popen( args, "r", want_stderr );
	if((cmd_err != NULL) && merge_stderr_with_stdout)
	  {
	    vmprintf(D_ALWAYS, "Invalid use of systemCommand().\n");
	    return -1;
	  }

	PrivSepForkExec psforkexec;
	char ** args_array = args.GetStringArray();
	int error_pipe[2];
		// AIX 5.2, Solaris 5.9, HPUX 11 don't have AF_LOCAL

	if(pipe(stdin_pipes) < 0)
	  {
	    vmprintf(D_ALWAYS, "Error creating pipe: %s\n", strerror(errno));
		deleteStringArray( args_array );
	    return -1;
	  }
	if(pipe(stdout_pipes) < 0)
	  {
	    vmprintf(D_ALWAYS, "Error creating pipe: %s\n", strerror(errno));
	    close(stdin_pipes[0]);
	    close(stdin_pipes[1]);
		deleteStringArray( args_array );
	    return -1;
	  }

	if ( use_privsep ) {
	  if(!psforkexec.init())
	    {
	      vmprintf(D_ALWAYS,
		       "my_popenv failure on %s\n",
		       args_array[0]);
	      close(stdin_pipes[0]);
	      close(stdin_pipes[1]);
	      close(stdout_pipes[0]);
	      close(stdout_pipes[1]);
		  deleteStringArray( args_array );
	      return -1;
	    }
	}

	if(cmd_err != NULL)
	  {
	    if(pipe(error_pipe) < 0)
	      {
		vmprintf(D_ALWAYS, "Could not open pipe for error output: %s\n", strerror(errno));
		close(stdin_pipes[0]);
		close(stdin_pipes[1]);
		close(stdout_pipes[0]);
		close(stdout_pipes[1]);
		deleteStringArray( args_array );
		return -1;
	      }
	  }
	// Now fork and do what my_popen used to do
	pid = fork();
	if(pid < 0)
	  {
	    vmprintf(D_ALWAYS, "Error forking: %s\n", strerror(errno));
		close(stdin_pipes[0]);
		close(stdin_pipes[1]);
		close(stdout_pipes[0]);
		close(stdout_pipes[1]);
		if(cmd_err != NULL) {
			close(error_pipe[0]);
			close(error_pipe[1]);
		}
		deleteStringArray( args_array );
	    return -1;
	  }
	if(pid == 0)
	  {
	    close(stdout_pipes[0]);
	    close(stdin_pipes[1]);
	    dup2(stdout_pipes[1], STDOUT_FILENO);
	    dup2(stdin_pipes[0], STDIN_FILENO);

	    if(merge_stderr_with_stdout) dup2(stdout_pipes[1], STDERR_FILENO);
	    else if(cmd_err != NULL) 
	      {
		close(error_pipe[0]);
		dup2(error_pipe[1], STDERR_FILENO);
	      }


	    uid_t euid = geteuid();
	    gid_t egid = getegid();
	    seteuid( 0 );
	    setgroups( 1, &egid );
	    setgid( egid );
	    setuid( euid );
	    
	    install_sig_handler(SIGPIPE, SIG_DFL);
	    sigset_t sigs;
	    sigfillset(&sigs);
	    sigprocmask(SIG_UNBLOCK, &sigs, NULL);


	    MyString cmd = args_array[0];

	    if ( use_privsep ) {
	    
	      ArgList al;
	      psforkexec.in_child(cmd, al);
          deleteStringArray( args_array );
	      args_array = al.GetStringArray();
	    }


	    execvp(cmd.Value(), args_array);
	    vmprintf(D_ALWAYS, "Could not execute %s: %s\n", args_array[0], strerror(errno));
	    exit(-1);
	  }
	close(stdin_pipes[0]);
	close(stdout_pipes[1]);
	fp_for_stdin = fdopen(stdin_pipes[1], "w");
	fp = fdopen(stdout_pipes[0], "r");
	if(cmd_err != NULL)
	  {
	    close(error_pipe[1]);
	    childerr = fdopen(error_pipe[0],"r");
	    if(childerr == 0)
	      {
		vmprintf(D_ALWAYS, "Could not open pipe for reading child error output: %s\n", strerror(errno));
		close(error_pipe[0]);
		close(stdin_pipes[1]);
		close(stdout_pipes[0]);
	    fclose(fp);
		fclose(fp_for_stdin);
		deleteStringArray( args_array );
		return -1;
	      }
	  }

	if ( use_privsep ) {
	  FILE* _fp = psforkexec.parent_begin();
	  privsep_exec_set_uid(_fp, job_user_uid);
	  privsep_exec_set_path(_fp, args_array[0]);
	  privsep_exec_set_args(_fp, args);
	  Env env;
	  env.MergeFrom(environ);
	  privsep_exec_set_env(_fp, env);
	  privsep_exec_set_iwd(_fp, ".");

	  privsep_exec_set_inherit_fd(_fp, 1);
	  privsep_exec_set_inherit_fd(_fp, 2);
	  privsep_exec_set_inherit_fd(_fp, 0);
	
	  if (!psforkexec.parent_end()) {
	    vmprintf(D_ALWAYS,
		     "my_popenv failure on %s\n",
		     args_array[0]);
	    fclose(fp);
		fclose(fp_for_stdin);
		if (childerr) {
			fclose(childerr);
		}
		deleteStringArray( args_array );
	    return -1;
	  }
	}

	deleteStringArray( args_array );
#endif
	set_priv( prev );
	if ( fp == NULL ) {
		MyString args_string;
		args.GetArgsStringForDisplay( &args_string, 0 );
		vmprintf( D_ALWAYS, "Failed to execute command: %s\n",
				  args_string.Value() );
		if (childerr)
			fclose(childerr);
		return -1;
	}

	if(cmd_in != NULL) {
	  cmd_in->rewind();
	  char * tmp;
	  while((tmp = cmd_in->next()) != NULL)
	    {
	      fprintf(fp_for_stdin, "%s\n", tmp);
	      fflush(fp_for_stdin);
	    }
	}
	if (fp_for_stdin) {
	  // So that we will not be waiting for output while the
	  // script waits for stdin to be closed.
	  fclose(fp_for_stdin);
	}

	if ( my_cmd_out == NULL ) {
		my_cmd_out = new StringList();
	}

	while ( fgets( buff, sizeof(buff), fp ) != NULL ) {
		line += buff;
		if ( line.chomp() ) {
			my_cmd_out->append( line.Value() );
			line = "";
		}
	}

	if(cmd_err != NULL)
	  {
	    while(fgets(buff, sizeof(buff), childerr) != NULL)
	      {
		line += buff;
		if(line.chomp())
		  {
		    cmd_err->append(line.Value());
		    line = "";
		  }
	      }
	    fclose(childerr);
	  }
#if defined(WIN32)
	result = my_pclose( fp );
#else
	// Why close first?  Just in case the child process is waiting
	// on a read, and we have nothing more to send it.  It will
	// now receive a SIGPIPE.
	fclose(fp);
	if(waitpid(pid, &result, 0) < 0)
	  {
	    vmprintf(D_ALWAYS, "Unable to wait: %s\n", strerror(errno));
		if ( cmd_out == NULL ) {
			delete my_cmd_out;
		}
	   
	    return -1;
	  }
#endif
	if( result != 0 ) {
		MyString args_string;
		args.GetArgsStringForDisplay(&args_string,0);
		vmprintf(D_ALWAYS,
		         "Command returned non-zero: %s\n",
		         args_string.Value());
		my_cmd_out->rewind();
		const char *next_line;
		while ( (next_line = my_cmd_out->next()) ) {
			vmprintf( D_ALWAYS, "  %s\n", next_line );
		}
	}
	if ( cmd_out == NULL ) {
		delete my_cmd_out;
	}
	return result;
}