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setsockopt: allow SO_BROADCAST for UDP sockets only

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goldsimon 2017-05-12 20:34:16 +02:00
parent 8345e9035f
commit 0bbf6490f5
1 changed files with 5 additions and 0 deletions
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5
src/api/sockets.c
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@ -2852,6 +2852,11 @@ lwip_setsockopt_impl(int s, int level, int optname, const void *optval, socklen_
#if SO_REUSE #if SO_REUSE
case SO_REUSEADDR: case SO_REUSEADDR:
#endif /* SO_REUSE */ #endif /* SO_REUSE */
if ((optname == SO_BROADCAST) &&
(NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP)) {
done_socket(sock);
return ENOPROTOOPT;
}
LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, optlen, int); LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, optlen, int);
if (*(const int*)optval) { if (*(const int*)optval) {
ip_set_option(sock->conn->pcb.ip, optname); ip_set_option(sock->conn->pcb.ip, optname);