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Fix for amb519: geoip_code2 and geoip_code3 will overflow the result buffer on an unsuccessful lookup.

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Added two replacement natives for those two: geoip_code2_ex and geoip_code3_ex, could not modify the old natives without breaking backwards compatibility.
This commit is contained in:
Steve Dudenhoeffer
2007-07-19 18:37:13 +00:00
parent 8316318c31
commit 4b02ffa920
2 changed files with 86 additions and 4 deletions
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37
dlls/geoip/geoip_amxx.cpp
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@ -28,6 +28,39 @@ static cell AMX_NATIVE_CALL amx_geoip_code3(AMX *amx, cell *params)
const char *ccode = GeoIP_country_code3_by_addr(gi, ip);
return MF_SetAmxString(amx, params[2], ccode?ccode:"error", 4);
}
static cell AMX_NATIVE_CALL amx_geoip_code2_ex(AMX *amx, cell *params)
{
int len = 0;
char *ip = MF_GetAmxString(amx, params[1], 0, &len);
StripPort(ip);
const char *ccode = GeoIP_country_code_by_addr(gi, ip);
if (ccode == NULL)
{
return 0;
}
MF_SetAmxString(amx, params[2], ccode, 2);
return 1;
}
static cell AMX_NATIVE_CALL amx_geoip_code3_ex(AMX *amx, cell *params)
{
int len = 0;
char *ip = MF_GetAmxString(amx, params[1], 0, &len);
StripPort(ip);
const char *ccode = GeoIP_country_code3_by_addr(gi, ip);
if (ccode == NULL)
{
return 0;
}
MF_SetAmxString(amx, params[2], ccode, 3);
return 1;
}
static cell AMX_NATIVE_CALL amx_geoip_country(AMX *amx, cell *params)
{
@ -60,6 +93,10 @@ void OnAmxxDetach()
AMX_NATIVE_INFO geoip_natives[] = {
{"geoip_code2", amx_geoip_code2},
{"geoip_code3", amx_geoip_code3},
{"geoip_code2_ex", amx_geoip_code2_ex},
{"geoip_code3_ex", amx_geoip_code3_ex},
{"geoip_country", amx_geoip_country},
{NULL, NULL},
};