kolibrios/programs/system/shell/modules/module_script.c

/// ===========================================================

int script_check(char file[])
{

	kol_struct70	k70;
	char		buf[4];

	k70.p00 = 0;
	k70.p04 = 0;
	//k70.p08 = 0;
	k70.p12 = 4; // read 4 bytes
	k70.p16 = (unsigned) buf;
	k70.p20 = 0;
	k70.p21 = file;

	kol_file_70(&k70);

	if ( !strcmp(buf, script_sign) ) // if we found the script signature
		return TRUE;
	else
		return FALSE;
}

/// ===========================================================

int script_run(char exec[], char args[])
{

	kol_struct70	k70;
	kol_struct_BDVK	bdvk;
	unsigned	result, i;
	unsigned	long long filesize, pos;
	char		*buf; // buffer, where script is copied

	k70.p00 = 5;
	k70.p04 = k70.p12 = 0;
	//k70.p08 = 0;
	k70.p16 = (unsigned) &bdvk;
	k70.p20 = 0;
	k70.p21 = exec;

	result = kol_file_70(&k70); // get file info
	if ( 0 != result ) 
		return FALSE;

	filesize = bdvk.p32; // get file size

	buf = malloc(filesize+256); // may fail for over 4Gb file, but impossible case
	if (NULL == buf)
		return FALSE;

	buf[filesize]=0;

	k70.p00 = 0;
	k70.p04 = 0;
	//k70.p08 = 0;
	k70.p12 = filesize;
	k70.p16 = (unsigned) buf;
	k70.p20 = 0;
	k70.p21 = exec;

	result = kol_file_70(&k70); // read file to the buffer
	if ( 0 != result ) 
		{
		free(buf);
		return FALSE;
		}

	pos = 0;

	for (;;) // script processing
		{

		if (pos > filesize)
			break;

		for (i=0;;i++) // reading a string
			{
			if ((0x0A == buf[pos])||(0x0D == buf[pos])||(0 == buf[pos]))
				{
				pos++;
				CMD[i] = '\0';
				break;
				}
			CMD[i] = buf[pos];
			pos++;
			}

		if ( 0 == strlen(CMD) ) // empty string
			continue;

		if ('#' == CMD[0]) // comment
			continue;

		command_execute();

		}

	free(buf);
	return TRUE;
}

/// ===========================================================