From 3bdb34886ccd059423ba5d3574464acc4f635d71 Mon Sep 17 00:00:00 2001 From: Joel Cunningham Date: Thu, 17 Aug 2017 08:54:50 -0500 Subject: [PATCH] sockets IPv6: cast interface index to u8_t 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 --- src/api/sockets.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/api/sockets.c b/src/api/sockets.c index 296a5d44..f23510ae 100644 --- a/src/api/sockets.c +++ b/src/api/sockets.c @@ -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; }