void clean_up( void ) {
sound_free();
game_list_free();
submenu_free();
platform_free();
menu_free();
hint_free();
font_free();
bg_free();
location_free();
event_free();
snap_free();
video_free();
sdl_free();
}
int
sdl_add(char *sdname, char *sdstring, char ** addrs, int addrc)
{
int i, idx = -1;
char astring[40];
unsigned int maskbits;
struct sdaddr *m, *n;
/*
* if a blacklist of same tag name is already there, replace it,
* otherwise append.
*/
for (i = 0; i < blu; i++) {
if (strcmp(blacklists[i].tag, sdname) == 0) {
idx = i;
break;
}
}
if (idx != -1) {
if (debug > 0)
printf("replacing list %s; %d new entries\n",
blacklists[idx].tag, addrc);
sdl_free(&blacklists[idx]);
} else {
if (debug > 0)
printf("adding list %s; %d entries\n", sdname, addrc);
idx = blu;
}
if (idx == blu && blu == blc) {
struct sdlist *tmp;
tmp = realloc(blacklists, (blc + 128) *
sizeof(struct sdlist));
if (tmp == NULL)
return (-1);
blacklists = tmp;
blc += 128;
sdl_clear(&blacklists[idx]);
}
if ((blacklists[idx].tag = strdup(sdname)) == NULL)
goto misc_error;
if ((blacklists[idx].string = strdup(sdstring)) == NULL)
goto misc_error;
blacklists[idx].naddrs = addrc;
/*
* Cycle through addrs, converting. We assume they are correctly
* formatted v4 and v6 addrs, if they don't all convert correctly, the
* add fails. Each address should be address/maskbits
*/
blacklists[idx].addrs = malloc(addrc * sizeof(struct sdentry));
if (blacklists[idx].addrs == NULL)
goto misc_error;
for (i = 0; i < addrc; i++) {
int j, k, af;
n = &blacklists[idx].addrs[i].sda;
m = &blacklists[idx].addrs[i].sdm;
j = sscanf(addrs[i], "%39[^/]/%u", astring, &maskbits);
if (j != 2)
goto parse_error;
if (maskbits > 128)
goto parse_error;
/*
* sanity check! we don't allow a 0 mask -
* don't blacklist the entire net.
*/
if (maskbits == 0)
goto parse_error;
if (strchr(astring, ':') != NULL)
af = AF_INET6;
else
af = AF_INET;
if (af == AF_INET && maskbits > 32)
goto parse_error;
j = inet_pton(af, astring, n);
if (j != 1)
goto parse_error;
if (debug > 0)
printf("added %s/%u\n", astring, maskbits);
/* set mask, borrowed from pf */
k = 0;
for (j = 0; j < 4; j++)
m->addr32[j] = 0;
while (maskbits >= 32) {
m->addr32[k++] = 0xffffffff;
maskbits -= 32;
}
for (j = 31; j > 31 - maskbits; --j)
m->addr32[k] |= (1 << j);
if (maskbits)
m->addr32[k] = htonl(m->addr32[k]);
/* mask off address bits that won't ever be used */
for (j = 0; j < 4; j++)
n->addr32[j] = n->addr32[j] & m->addr32[j];
}
if (idx == blu) {
blu++;
blacklists[blu].tag = NULL;
}
return (0);
parse_error:
if (debug > 0)
printf("sdl_add: parse error, \"%s\"\n", addrs[i]);
misc_error:
sdl_free(&blacklists[idx]);
return (-1);
}
