/* ------------------------------------------------------------- **
** Removes one line of control stream from buf (up to '\r\n'). <= 5
** chars are returned in cmd (up to 4 + \0), and <= MAX_LINE_LEN in
** arg. Must accept any NULL terminated buf and give sane output.
**
** returns 0 on success, 1 if there is not a complete line in
** buf, and -X on non-sane buf. contents of buf unchanged on
** return(1), undefined on return(-X)
** ------------------------------------------------------------- */
int extract_clientcmd(sstr * buf, sstr ** pcmd, sstr ** parg)
{
static sstr *cmd = NULL, *arg = NULL;
if(!cmd)
cmd = sstr_init(4);
if(!arg)
arg = sstr_init(MAX_LINE_LEN);
if(pcmd)
*pcmd = cmd;
if(parg)
*parg = arg;
if(!sstr_hasline(buf))
return (1);
switch (sstr_token(buf, cmd, " \t\n\r", 0)) {
case -1: /*Token doesn't fit in cmd */
return (-1);
case ' ':
case '\t':
sstr_token(buf, arg, "\r\n", 0);
break;
default: /*end of line */
sstr_empty(arg);
}
if(!config.nonasciiok)
sstr_makeprintable(arg, '?');
return (0);
}
int parse_line(sstr * buf)
{
struct option_array *opt;
sstr *tok;
tok = sstr_init(0);
if (sstr_getchar(buf, 0) == '#')
return (0);
if (sstr_token(buf, tok, " =\t\r\n", 0) == -1)
return (0);
if (!sstr_casecmp2(tok, "EndSection"))
return (sublevel > 0 ? 1 : -1);
opt = opts;
while (opt->name != NULL && sstr_casecmp2(tok, opt->name))
opt++;
if (opt->name == NULL) {
fprintf(stderr,"Unrecognised option \"%s\" at line %d of %s\n",
sstr_buf(tok), line_no, config.config_file);
return (-1);
}
if (opt->cmdline && strchr(cmdline_set, opt->cmdline)) {
fprintf(stderr,
"\"%s\" specified on the command line: ignored\n",
opt->name);
return (0);
}
if (set_opt(opt, buf) == -1) {
fprintf(stderr, "Invalid argument to %s at line %d of %s\n",
opt->name, line_no, config.config_file);
return (-1);
}
return (0);
}
int store_addressrange(sstr * str, struct in_addr *addr, struct in_addr *msk)
{
sstr *tok;
int sep, i;
tok = sstr_init(0);
sep = sstr_token(str, tok, " /->\r\n", 0);
if(name2addr(tok, addr)==-1) return(-1);
if (sep == '/') {
sep = sstr_token(str, tok, " /->\r\n", 0);
if (sstr_chr(tok, '.')==-1) { /* x.x.x.x/yy */
i = sstr_atoi(tok);
msk->s_addr = htonl(0xFFFFFFFF << (32 - i));
} else
if(name2addr(tok, msk)==-1) return(-1);
} else { /*No mask given */
if (addr->s_addr == INADDR_ANY)
msk->s_addr = INADDR_ANY;
else
msk->s_addr = INADDR_BROADCAST;
}
sstr_free(tok);
return (0);
}
int store_acl(sstr * str, struct acl_list *acls)
{
sstr *tok;
struct acl_item item;
tok = sstr_init(0);
sstr_token(str, tok, " \t\n", 0);
if (!sstr_casecmp2(tok, "Allow"))
item.action = ALLOW;
else if (!sstr_casecmp2(tok, "Deny"))
item.action = DENY;
else
return (-1);
sstr_free(tok);
parse_match(str, &item);
acls->list = realloc(acls->list,
(acls->num + 1) * sizeof(struct acl_item));
if(!acls->list) return(-1);
memcpy(acls->list + acls->num, &item, sizeof(struct acl_item));
acls->num++;
return (0);
}
/* ------------------------------------------------------------- **
** As extract_clientcmd, but returns the code as an int.
** If code==0 then we are in a multiline. code<0 means we are
** starting a multiline.
** ------------------------------------------------------------- */
int extract_servercmd(sstr * buf, int *code, sstr ** pmsg)
{
static int multiline = 0;
static sstr *scode = NULL, *msg = NULL;
if(!scode)
scode = sstr_init(4);
if(!msg)
msg = sstr_init(MAX_LINE_LEN);
if(pmsg)
*pmsg = msg;
if(!sstr_hasline(buf))
return (1);
if(sstr_token(buf, msg, "\r\n", 0) == -1)
return (-1);
if(!multiline ||
(sstr_atoi(msg) == multiline && sstr_getchar(msg, 3) == ' ')) {
multiline = 0;
if(sstr_split(msg, scode, 0, 4) == -1)
return (-1);
*code = sstr_atoi(scode);
switch (sstr_getchar(scode, 3)) {
case '-':
multiline = *code;
*code = -*code;
case ' ':
break;
default:
return (-1);
}
} else {
*code = 0;
}
if(!config.nonasciiok)
sstr_makeprintable(msg, '?');
return (0);
}
/* ------------------------------------------------------------- **
** Functions to read / parse the config file.
** ------------------------------------------------------------- */
int process_cmdline(int argc, char *argv[])
{
int i;
struct option_array *opt;
sstr *arg;
char *optp, *argp;
set_defaults();
if (argc <= 1)
return 0;
arg = sstr_init(0);
i = 1;
optp = argv[i] + 1;
while (i < argc) {
if (argv[i][0] != '-')
usage(-1);
opt = opts;
if (*optp == '-')
usage(-1); /*?TODO longopts */
else {
while (opt->name != NULL && opt->cmdline != *optp)
opt++;
if (opt->name == NULL)
usage(*optp);
if (strlen(cmdline_set) < 99)
cmdline_set[strlen(cmdline_set)] = *optp;
if (opt->type == BOOL) {
sstr_cpy2(arg, "yes");
set_opt(opt, arg);
if (*(++optp) == 0) {
i++;
optp = argv[i] + 1;
}
} else {
argp = optp + 1;
if (*argp == 0) {
if (i >= argc - 1 ||
*(argp = argv[++i]) == '-')
usage(*optp);
}
sstr_cpy2(arg, argp);
set_opt(opt, arg);
i++;
optp = argv[i] + 1;
}
}
}
sstr_free(arg);
return (0);
}
/* ------------------------------------------------------------- **
** Allocate and initialise session_info structure. Also determine
** destination address if possible.
** ------------------------------------------------------------- */
static session_info *init_info(int fd, struct sockaddr_in source)
{
session_info *i;
i = (session_info *) malloc(sizeof(session_info));
if(i == NULL)
die(ERROR, "Malloc failed", 0, NULL, -1);
memset(i, 0, sizeof(session_info));
i->server_listen = i->client_listen = -1;
i->client_data.fd = i->server_data.fd = -1;
i->server_control.fd = -1;
i->server_control.buf = sstr_init(BUF_LEN);
i->client_control.buf = sstr_init(BUF_LEN);
i->server_data.buf = sstr_init(DATA_BUF_LEN);
i->client_data.buf = sstr_init(DATA_BUF_LEN);
i->last_command = sstr_init(0);
i->server_name = sstr_init(0);
i->username = sstr_init(0);
i->passwd = sstr_init(0);
i->strictpath = sstr_init(0);
i->cmd_arrays[CACHE_CMDS] = NULL;
i->cmd_arrays[FTP_CMDS] = ftp_cmds;
i->filename = sstr_init(0);
if(config.apconv)
i->mode = APCONV;
else
i->mode = ACTIVE;
i->state = NEITHER;
i->greeting = AWAITED;
i->client_control.address = source;
i->client_control.fd = fd;
get_orig_dest(fd, &i->server_control.address);
i->apparent_server_address = i->server_control.address;
return i;
}
/* ------------------------------------------------------------- **
** Return hostname of address, or failing that the IP as a string
** ------------------------------------------------------------- */
sstr *addr2name(struct in_addr address)
{
struct hostent *hostinfo;
static sstr *buf = NULL;
if(!buf)
buf = sstr_init(MAX_LINE_LEN);
sstr_cpy2(buf, inet_ntoa(address));
if((hostinfo = gethostbyaddr((char *) &address,
sizeof(address), AF_INET)) != NULL)
sstr_apprintf(buf, "(%s)", hostinfo->h_name);
return (buf);
}
int read_config()
{
struct option_array *opt;
sstr *buf;
if (!fp) {
if (config.config_file == NULL) fp = fopen(CONFIG_FILE, "r");
else fp = fopen(config.config_file, "r");
if (fp == NULL) return (-1);
line_no=0;
}
buf = sstr_init(0);
while (sstr_fgets(buf, fp) != NULL) {
line_no++;
switch (parse_line(buf)) {
case -1:
sstr_free(buf);
if (sublevel == 0) fclose(fp);
return (-1);
case 0:
break;
case 1: /* end subsection */
sstr_free(buf);
return (0);
}
};
sstr_free(buf);
fclose(fp);
fp = NULL;
opt = opts;
while (opt->name != NULL && !opt->essential)
opt++;
if (opt->name != NULL) {
fprintf(stderr, "Essential option \"%s\" not specified.\n",
opt->name);
return (-1);
}
process_opts();
#ifdef DEBUG
if(!config.inetd) print_config();
#endif
return (0);
}
/**
* SACT.Init (1.0~)
* SACT全体の初期化
*/
void Init() {
int p1 = getCaliValue(); /* ISys3x */
// ゲームタイトルによるバージョン設定
if (0 == strcmp(nact->game_title_name, GT_ESUKA)) {
sact.version = 100;
} else if (0 == strcmp(nact->game_title_name, GT_RANCE5D)){
sact.version = 110;
} else {
sact.version = 120;
}
NOTICE("SACT version = %d\n", sact.version);
// 初期座標原点
sact.origin.x = 0;
sact.origin.y = 0;
// 各サブシステム初期化
sp_init();
sstr_init();
ssel_init();
stimer_init();
ssnd_init();
if (nact->files.sact01) {
smask_init(nact->files.sact01);
}
// create depth map
sact.dmap = sf_create_pixel(sf0->width, sf0->height, 16);
// その他 System35 のデフォルト動作の変更
nact->ags.font->antialiase_on = TRUE;
sys_setHankakuMode(2); // 全角半角変換無し
ags_autorepeat(FALSE); // key auto repeat off
if (sact.version >= 120) {
sact.logging = TRUE;
} else {
sact.logging = FALSE;
}
DEBUG_COMMAND("SACT.Init %d:\n", p1);
}
void write_log(int priority, const char *msg, ...)
{
char *buf = NULL;
int sz = MAX_LINE_LEN, n;
va_list argptr;
time_t tstamp;
if(priority > config.loglevel)
return;
do { /* Modified from printf(3) man page */
if((buf = realloc(buf, sz)) == NULL)
die(ERROR, "Out of memory.", 0, 0, -1);
va_start(argptr, msg);
n = vsnprintf(buf, sz, msg, argptr);
va_end(argptr);
if(n == -1) /* glibc 2.0 */
sz *= 2; /* Try a bigger buffer */
else if(n >= sz) /* C99 compliant / glibc 2.1 */
sz = n + 1; /* precisely what is needed */
else
break; /*It worked */
} while(1);
if(config.logfile) {
sstr *s;
s = sstr_init(0);
time(&tstamp);
sstr_cpy2(s, ctime(&tstamp));
sstr_setchar(s, sstr_chr(s, '\n'), ' ');
sstr_apprintf(s, "frox[%d] %s\n", getpid(), buf);
sstr_write(2, s, 0);
sstr_free(s);
} else {
if(priority == ERROR || priority == ATTACK) {
syslog(LOG_ERR | LOG_DAEMON, "%s\n", buf);
} else {
syslog(LOG_NOTICE | LOG_DAEMON, "%s\n", buf);
}
}
free(buf);
}
/* Escape non printable characters, and any characters from extras in the url
* with the %xx equivalent. If % must be escaped then include it in extras.
*/
int urlescape(sstr * url, char *extras)
{
int i;
sstr *tmp = sstr_init(0);
for(i = 0; i < sstr_len(url); i++) {
char c = sstr_getchar(url, i);
if(strchr(extras, c) || !isprint(c)) {
sstr_ncat(tmp, url, i);
sstr_apprintf(tmp, "%%%x", c);
sstr_split(url, NULL, 0, i + 1);
i = -1;
}
}
sstr_cat(tmp, url);
sstr_cpy(url, tmp);
sstr_free(tmp);
return 0;
}
void parse_match(sstr *str, struct acl_item *item)
{
sstr *tok;
tok = sstr_init(0);
item->user = NULL;
sstr_token(str, tok, " \t\n", 0);
item->src = strdup(sstr_buf(tok));
sstr_token(str, NULL, " \t\n", 0); /*Removes the " - " from the ACL*/
if(sstr_chr(str, '@')!=-1) {
sstr_token(str, tok, "@", 0);
item->user = strdup(sstr_buf(tok));
config.fakentp = TRUE;
}
sstr_token(str, tok, " \t\n", 0);
item->dst = strdup(sstr_buf(tok));
item->ntp_ports = get_portlist(str);
sstr_free(tok);
}
int make_tmpdir(void)
{
sstr *name;
struct stat tmp;
name = sstr_init(0);
sstr_apprintf(name, "%s/tmp", config.chroot);
if(stat(sstr_buf(name), &tmp) == -1) {
if(mkdir(sstr_buf(name), S_IRWXU) == -1) {
write_log(ERROR, "Unable to make tmp dir %s",
sstr_buf(name));
sstr_free(name);
return (-1);
}
chown(sstr_buf(name), config.uid, config.gid);
sstr_free(name);
}
return 0;
}
void set_defaults(void)
{
sstr *tmp;
tmp = sstr_init(0);
config.resolvhack = NULL;
config.device = NULL;
sstr_cpy2(tmp, "ControlPorts 40000-50000");
parse_line(tmp);
sstr_cpy2(tmp, "PassivePorts 40000-50000");
parse_line(tmp);
sstr_cpy2(tmp, "ActivePorts 40000-50000");
parse_line(tmp);
config.timeout = 300;
config.user = NULL;
config.group = NULL;
config.nonasciiok = FALSE;
config.bdefend = TRUE;
config.loglevel = 15;
config.xferlogging = TRUE;
#ifdef TRANS_DATA
#endif
#ifdef USE_CACHE
config.cachemod = NULL;
#endif
#ifdef USE_CCP
config.ccpcmd = NULL;
config.oldccp = TRUE;
#endif
#ifdef DO_VSCAN
config.vscanner = NULL;
config.vscanok = 0;
config.vscanpm = 0;
#endif
#ifdef DO_SSL
config.datassl = TRUE;
config.anonssl = TRUE;
#endif
sstr_free(tmp);
}
/* ------------------------------------------------------------- **
** Send message to client
** ------------------------------------------------------------- */
void send_message(int code, sstr * msg)
{
sstr *buf;
if(!ccp_allowmsg(&code, msg))
return;
buf = sstr_init(MAX_LINE_LEN + 10);
if(code != 0)
sstr_apprintf(buf, "%d%c", abs(code), code > 0 ? ' ' : '-');
sstr_cat(buf, msg);
sstr_ncat2(buf, "\r\n", 2);
#ifdef DEBUG
fprintf(stderr, " S: \033[34m%s\033[37m", sstr_buf(buf));
#else
write_log(VERBOSE, " S: %s", sstr_buf(buf));
#endif
sstr_write(info->client_control.fd, buf, 0);
sstr_free(buf);
}
u_int16_t *get_portlist(sstr * str)
{
sstr *tok;
int i = 0, sep;
u_int16_t *ports = NULL;
tok = sstr_init(0);
do {
ports = realloc(ports, (i + 2) * sizeof(u_int16_t));
if(!ports) die(ERROR, "Out of memory reading config file",
0, 0, -1);
sep = sstr_token(str, tok, " \t,-\r\n", 0);
if (sep == -1)
break;
if (!sstr_cmp2(tok, "*")) {
ports[i] = 1;
ports[i + 1] = 0xFFFF;
i += 2;
break;
}
ports[i] = ports[i + 1] = sstr_atoi(tok);
if (sep == '-') {
sep = sstr_token(str, tok, " \t,\n", 0);
if (sep == -1)
ports[i + 1] = 0xFFFF;
else
ports[i + 1] = sstr_atoi(tok);
}
i += 2;
} while (sep != -1);
ports[i] = ports[i + 1] = 0;
sstr_free(tok);
return (ports);
}
/* ------------------------------------------------------------- **
** Send command to server
** ------------------------------------------------------------- */
void send_command(sstr * cmd, sstr * arg)
{
sstr *buf;
buf = sstr_init(MAX_LINE_LEN + 10);
sstr_cat(buf, cmd);
if(sstr_len(arg) != 0) {
sstr_ncat2(buf, " ", 1);
sstr_cat(buf, arg);
}
sstr_ncat2(buf, "\r\n", 2);
#ifdef DEBUG
fprintf(stderr, " C: \033[31m%s\033[37m", sstr_buf(buf));
#else
write_log(VERBOSE, " C: %s", sstr_buf(buf));
#endif
if(info->ssl_sc)
ssl_write(info->ssl_sc, buf);
else
sstr_write(info->server_control.fd, buf, 0);
sstr_free(buf);
}
int set_opt(struct option_array *opt, sstr * str)
{
sstr *tok;
int sep;
if (rereading && !opt->reloadable)
return (0);
tok = sstr_init(0);
sstr_ncat2(str, "\n", 1); /*For sstr_token */
opt->essential = FALSE;
switch (opt->type) {
case BOOL:
sstr_token(str, tok, " \t\r\n", 0);
if (!sstr_casecmp2(tok, "yes"))
*(int *) opt->var = TRUE;
else if (!sstr_casecmp2(tok, "no"))
*(int *) opt->var = FALSE;
else
return (-1);
break;
case FILENAME:
case STRING:
sstr_token(str, tok, " \t\r\n", SSTR_QTOK);
*(char **) opt->var = strdup(sstr_buf(tok));
break;
case DIRECTRY:
sstr_token(str, tok, " \t\r\n", SSTR_QTOK);
if (sstr_getchar(tok, sstr_len(tok) - 1) != '/')
sstr_ncat2(tok, "/", 1);
*(char **) opt->var = strdup(sstr_buf(tok));
break;
case ADDRESS:
sstr_token(str, tok, " \t\r\n", 0);
return name2addr(tok, (struct in_addr *) opt->var);
break;
case ADDRPRT:
sep = sstr_token(str, tok, " :\t\r\n", 0);
if( name2addr(tok, &((struct sockaddr_in *) opt->var)->sin_addr)==-1)
return(-1);
if (sep == ':')
((struct sockaddr_in *) opt->var)->sin_port
= ntohs(sstr_atoi(str));
((struct sockaddr_in *) opt->var)->sin_family = AF_INET;
break;
case INT:
sstr_token(str, tok, " \t\r\n", 0);
*(int *) opt->var = sstr_atoi(tok);
break;
case PRTRNGE:
sstr_token(str, tok, " \t-,\r\n", 0);
((int *) opt->var)[0] = sstr_atoi(tok);
((int *) opt->var)[1] = sstr_atoi(str);
if(!valid_uint16(((int *) opt->var)[0]) ||
!valid_uint16(((int *) opt->var)[1])) {
fprintf(stderr, "Port out of range\n");
return -1;
}
if(((int *) opt->var)[0] >= ((int *) opt->var)[1]) {
fprintf(stderr, "Port range is inverted\n");
return -1;
}
break;
case ACL:
return store_acl(str, (struct acl_list *) opt->var);
break;
case SUBSECT:
return store_subsect(str, (struct subsect_list *) opt->var);
}
sstr_free(tok);
return (0);
}
