Fix some valgrind errors on FreeBSD

3 files changed, 36 insertions, 0 deletions

diff --git a/compat/closefrom.c b/compat/closefrom.c
index 664c4bc3..570637d2 100644
--- a/compat/closefrom.c
+++ b/compat/closefrom.c
@@ -36,6 +36,11 @@ closefrom(int fd)
 	int i;
 	int r = 0;
 
+#ifdef _SC_OPEN_MAX
+	max = sysconf(_SC_OPEN_MAX);
+#else
+	max = getdtablesize();
+#endif
 	for (i = fd; i < max; i++)
 		r += close(i);
 	return r;
diff --git a/if-bsd.c b/if-bsd.c
index c959b5e4..af98863c 100644
--- a/if-bsd.c
+++ b/if-bsd.c
@@ -90,6 +90,15 @@ if_conf(_unused struct interface *iface)
 	return 0;
 }
 
+#ifdef DEBUG_MEMORY
+static void
+cleanup(void)
+{
+
+	free(link_buf);
+}
+#endif
+
 int
 init_sockets(void)
 {
@@ -129,6 +138,7 @@ getifssid(const char *ifname, char *ssid)
 	strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
 	ireq.i_type = IEEE80211_IOC_SSID;
 	ireq.i_val = -1;
+	memset(nwid, 0, sizeof(nwid));
 	ireq.i_data = &nwid;
 	if (ioctl(socket_afnet, SIOCG80211, &ireq) == 0) {
 		retval = ireq.i_len;
@@ -267,6 +277,11 @@ open_link_socket(void)
 {
 	int fd;
 
+#ifdef DEBUG_MEMORY
+	if (link_buf == NULL)
+		atexit(cleanup);
+#endif
+
 	fd = socket(PF_ROUTE, SOCK_RAW, 0);
 	if (fd != -1) {
 		set_cloexec(fd);
diff --git a/net.c b/net.c
index 14322b19..d8c972ce 100644
--- a/net.c
+++ b/net.c
@@ -74,6 +74,21 @@ static char hwaddr_buffer[(HWADDR_LEN * 3) + 1];
 
 int socket_afnet = -1;
 
+#if defined(__FreeBSD__) && defined(DEBUG_MEMORY)
+/* FreeBSD does not zero the struct, causing valgrind errors */
+unsigned int
+if_nametoindex(const char *ifname)
+{
+	struct ifreq ifr;
+
+	memset(&ifr, 0, sizeof(ifr));
+	strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+	if (ioctl(socket_afnet, SIOCGIFINDEX, &ifr) != -1)
+		return ifr.ifr_index;
+	return 0;
+}
+#endif
+
 int
 inet_ntocidr(struct in_addr address)
 {
@@ -242,6 +257,7 @@ free_interface(struct interface *iface)
 		free(iface->state->offer);
 		free(iface->state);
 	}
+	free(iface->buffer);
 	free(iface->clientid);
 	free(iface);
 }