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(svn r19613) -Fix [FS#3755]: possible invalid read when server moves client to spectators before he finishes joining

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smatz 2010-04-11 22:06:17 +00:00
parent 7590651aea
commit 24a60b77ec
1 changed files with 6 additions and 4 deletions
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10
src/network/network_server.cpp
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@ -779,10 +779,12 @@ DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_COMPANY_PASSWORD)
char password[NETWORK_PASSWORD_LENGTH]; char password[NETWORK_PASSWORD_LENGTH];
p->Recv_string(password, sizeof(password)); p->Recv_string(password, sizeof(password));
/* Check company password. Allow joining if we cleared the password meanwhile */ /* Check company password. Allow joining if we cleared the password meanwhile.
const NetworkClientInfo *ci = cs->GetInfo(); * Also, check the company is still valid - client could be moved to spectators
if (!StrEmpty(_network_company_states[ci->client_playas].password) && * in the middle of the authorization process */
strcmp(password, _network_company_states[ci->client_playas].password) != 0) { CompanyID playas = cs->GetInfo()->client_playas;
if (Company::IsValidID(playas) && !StrEmpty(_network_company_states[playas].password) &&
strcmp(password, _network_company_states[playas].password) != 0) {
/* Password is invalid */ /* Password is invalid */
return SEND_COMMAND(PACKET_SERVER_ERROR)(cs, NETWORK_ERROR_WRONG_PASSWORD); return SEND_COMMAND(PACKET_SERVER_ERROR)(cs, NETWORK_ERROR_WRONG_PASSWORD);
} }