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Fixed bug in netconn_peer (test pcb for NULL before accessing)

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This commit is contained in:
kieranm 2003-03-31 09:34:56 +00:00
parent e6cc785fff
commit a5be8fe82c
1 changed files with 5 additions and 2 deletions
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7
src/api/api_lib.c
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@ -301,12 +301,15 @@ netconn_peer(struct netconn *conn, struct ip_addr *addr,
case NETCONN_UDPLITE: case NETCONN_UDPLITE:
case NETCONN_UDPNOCHKSUM: case NETCONN_UDPNOCHKSUM:
case NETCONN_UDP: case NETCONN_UDP:
if ((conn->pcb.udp->flags & UDP_FLAGS_CONNECTED) == 0) if (conn->pcb.udp == NULL ||
return -1; ((conn->pcb.udp->flags & UDP_FLAGS_CONNECTED) == 0))
return ERR_CONN;
*addr = (conn->pcb.udp->remote_ip); *addr = (conn->pcb.udp->remote_ip);
*port = conn->pcb.udp->remote_port; *port = conn->pcb.udp->remote_port;
break; break;
case NETCONN_TCP: case NETCONN_TCP:
if(conn->pcb.tcp == NULL)
return ERR_CONN;
*addr = (conn->pcb.tcp->remote_ip); *addr = (conn->pcb.tcp->remote_ip);
*port = conn->pcb.tcp->remote_port; *port = conn->pcb.tcp->remote_port;
break; break;