/** Return the le_version_t for the version of libevent specified in the
* string <b>v</b>. If the version is very new or uses an unrecognized
* version, format, return LE_OTHER. */
static le_version_t
tor_decode_libevent_version(const char *v)
{
unsigned major, minor, patchlevel;
char c, e, extra;
int fields;
/* Try the new preferred "1.4.11-stable" format.
* Also accept "1.4.14b-stable". */
fields = tor_sscanf(v, "%u.%u.%u%c%c", &major, &minor, &patchlevel, &c, &e);
if (fields == 3 ||
((fields == 4 || fields == 5 ) && (c == '-' || c == '_')) ||
(fields == 5 && TOR_ISALPHA(c) && (e == '-' || e == '_'))) {
return V(major,minor,patchlevel);
}
/* Try the old "1.3e" format. */
fields = tor_sscanf(v, "%u.%u%c%c", &major, &minor, &c, &extra);
if (fields == 3 && TOR_ISALPHA(c)) {
return V_OLD(major, minor, c);
} else if (fields == 2) {
return V(major, minor, 0);
}
return LE_OTHER;
}
/** Add an entry to the GeoIP table, parsing it from <b>line</b>. The
* format is as for geoip_load_file(). */
/*private*/ int
geoip_parse_entry(const char *line)
{
unsigned int low, high;
char b[3];
if (!geoip_countries)
init_geoip_countries();
if (!geoip_entries)
geoip_entries = smartlist_new();
while (TOR_ISSPACE(*line))
++line;
if (*line == '#')
return 0;
if (tor_sscanf(line,"%u,%u,%2s", &low, &high, b) == 3) {
geoip_add_entry(low, high, b);
return 0;
} else if (tor_sscanf(line,"\"%u\",\"%u\",\"%2s\",", &low, &high, b) == 3) {
geoip_add_entry(low, high, b);
return 0;
} else {
log_warn(LD_GENERAL, "Unable to parse line from GEOIP file: %s",
escaped(line));
return -1;
}
}
/** Add an entry to the GeoIP table indicated by <b>family</b>,
* parsing it from <b>line</b>. The format is as for geoip_load_file(). */
/*private*/ int
geoip_parse_entry(const char *line, sa_family_t family)
{
tor_addr_t low_addr, high_addr;
char c[3];
char *country = NULL;
if (!geoip_countries)
init_geoip_countries();
if (family == AF_INET) {
if (!geoip_ipv4_entries)
geoip_ipv4_entries = smartlist_new();
} else if (family == AF_INET6) {
if (!geoip_ipv6_entries)
geoip_ipv6_entries = smartlist_new();
} else {
log_warn(LD_GENERAL, "Unsupported family: %d", family);
return -1;
}
while (TOR_ISSPACE(*line))
++line;
if (*line == '#')
return 0;
if (family == AF_INET) {
unsigned int low, high;
if (tor_sscanf(line,"%u,%u,%2s", &low, &high, c) == 3 ||
tor_sscanf(line,"\"%u\",\"%u\",\"%2s\",", &low, &high, c) == 3) {
tor_addr_from_ipv4h(&low_addr, low);
tor_addr_from_ipv4h(&high_addr, high);
} else
goto fail;
country = c;
} else { /* AF_INET6 */
char buf[512];
char *low_str, *high_str;
struct in6_addr low, high;
char *strtok_state;
strlcpy(buf, line, sizeof(buf));
low_str = tor_strtok_r(buf, ",", &strtok_state);
if (!low_str)
goto fail;
high_str = tor_strtok_r(NULL, ",", &strtok_state);
if (!high_str)
goto fail;
country = tor_strtok_r(NULL, "\n", &strtok_state);
if (!country)
goto fail;
if (strlen(country) != 2)
goto fail;
if (tor_inet_pton(AF_INET6, low_str, &low) <= 0)
goto fail;
tor_addr_from_in6(&low_addr, &low);
if (tor_inet_pton(AF_INET6, high_str, &high) <= 0)
goto fail;
tor_addr_from_in6(&high_addr, &high);
}
geoip_add_entry(&low_addr, &high_addr, country);
return 0;
fail:
log_warn(LD_GENERAL, "Unable to parse line from GEOIP %s file: %s",
family == AF_INET ? "IPv4" : "IPv6", escaped(line));
return -1;
}
