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sockets IPv6: cast interface index to u8_t

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Interface indexes are u8_t internally so cast from sockets int representation to u8_t

This was found with MSVC 2013:

 1>lwip\src\api\sockets.c(3190): warning C4242: 'function' : conversion from 'const unsigned int' to 'u8_t', possible loss of data
 1>lwip\src\api\sockets.c(3698): warning C4242: 'function' : conversion from 'unsigned int' to 'u8_t', possible loss of data
This commit is contained in:
Joel Cunningham 2017-08-17 08:54:50 -05:00
parent 339ec17cf0
commit 3bdb34886c
1 changed files with 2 additions and 2 deletions
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4
src/api/sockets.c
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@ -3187,7 +3187,7 @@ lwip_setsockopt_impl(int s, int level, int optname, const void *optval, socklen_
const struct ipv6_mreq *imr = (const struct ipv6_mreq *)optval;
LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, optlen, struct ipv6_mreq, NETCONN_UDP);
inet6_addr_to_ip6addr(&multi_addr, &imr->ipv6mr_multiaddr);
netif = netif_get_by_index(imr->ipv6mr_interface);
netif = netif_get_by_index((u8_t)imr->ipv6mr_interface);
if (netif == NULL) {
err = EADDRNOTAVAIL;
break;
@ -3695,7 +3695,7 @@ lwip_socket_drop_registered_mld6_memberships(int s)
ip_addr_t multi_addr;
struct netif *netif;
ip_addr_copy_from_ip6(multi_addr, socket_ipv6_multicast_memberships[i].multi_addr);
netif = netif_get_by_index(socket_ipv6_multicast_memberships[i].if_idx);
netif = netif_get_by_index((u8_t)socket_ipv6_multicast_memberships[i].if_idx);
if (netif == NULL) {
return;
}