lib/socket: let query_iface_speed_from_name() initialize memory passed to syscalls

I'm not sure if struct initializers would take care of padding,
so I use ZERO_STRUCT().

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

diff --git a/lib/socket/interfaces.c b/lib/socket/interfaces.c
index ac26b97c248d8eb4e60e2e81edae140e278c13ee..497bd945984799bea32062b251a8d377aec212a1 100644 (file)
--- a/lib/socket/interfaces.c
+++ b/lib/socket/interfaces.c
@@ -149,6 +149,7 @@ static void query_iface_speed_from_name(const char *name, uint64_t *speed)
        strlcpy(ifr.ifr_name, name, IF_NAMESIZE);
 
        ifr.ifr_data = (void *)&edata;
+       ZERO_STRUCT(edata);
        edata.cmd = ETHTOOL_GLINK;
        ret = ioctl(fd, SIOCETHTOOL, &ifr);
        if (ret == -1) {
@@ -161,6 +162,7 @@ static void query_iface_speed_from_name(const char *name, uint64_t *speed)
        }
 
        ifr.ifr_data = (void *)&ecmd;
+       ZERO_STRUCT(ecmd);
        ecmd.cmd = ETHTOOL_GSET;
        ret = ioctl(fd, SIOCETHTOOL, &ifr);
        if (ret == -1) {