Use NULL instead of 0 for pointers

Signed-hostap: Jouni Malinen <j@w1.fi>

src/crypto/dh_group5.c

@@ -22,7 +22,7 @@
 void * dh5_init(struct wpabuf **priv, struct wpabuf **publ)
 {
 	*publ = dh_init(dh_groups_get(5), priv);
-	if (*publ == 0)
+	if (*publ == NULL)
 		return NULL;
 	return (void *) 1;
 }

src/p2p/p2p_sd.c

@@ -27,7 +27,7 @@ struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p,
 	struct p2p_sd_query *q;
 
 	if (!(dev->info.dev_capab & P2P_DEV_CAPAB_SERVICE_DISCOVERY))
-		return 0; /* peer does not support SD */
+		return NULL; /* peer does not support SD */
 
 	for (q = p2p->sd_queries; q; q = q->next) {
 		if (q->for_all_peers && !(dev->flags & P2P_DEV_SD_INFO))

src/tls/tlsv1_client.c

@@ -210,7 +210,7 @@ u8 * tlsv1_client_handshake(struct tlsv1_client *conn,
 			os_free(in_msg);
 			if (need_more_data)
 				*need_more_data = 1;
-			return 0;
+			return NULL;
 		}
 		ct = pos[0];
 

src/utils/wpa_debug.h

@@ -136,7 +136,7 @@ void wpa_hexdump_key(int level, const char *title, const u8 *buf, size_t len);
 static inline void wpa_hexdump_buf_key(int level, const char *title,
 				       const struct wpabuf *buf)
 {
-	wpa_hexdump_key(level, title, buf ? wpabuf_head(buf) : 0,
+	wpa_hexdump_key(level, title, buf ? wpabuf_head(buf) : NULL,
 			buf ? wpabuf_len(buf) : 0);
 }
 

src/wps/wps_enrollee.c

@@ -967,7 +967,7 @@ static enum wps_process_res wps_process_m4(struct wps_data *wps,
 		return WPS_CONTINUE;
 	}
 
-	if (wps_validate_m4_encr(decrypted, attr->version2 != 0) < 0) {
+	if (wps_validate_m4_encr(decrypted, attr->version2 != NULL) < 0) {
 		wpabuf_free(decrypted);
 		wps->state = SEND_WSC_NACK;
 		return WPS_CONTINUE;
@@ -1020,7 +1020,7 @@ static enum wps_process_res wps_process_m6(struct wps_data *wps,
 		return WPS_CONTINUE;
 	}
 
-	if (wps_validate_m6_encr(decrypted, attr->version2 != 0) < 0) {
+	if (wps_validate_m6_encr(decrypted, attr->version2 != NULL) < 0) {
 		wpabuf_free(decrypted);
 		wps->state = SEND_WSC_NACK;
 		return WPS_CONTINUE;
@@ -1086,8 +1086,8 @@ static enum wps_process_res wps_process_m8(struct wps_data *wps,
 		return WPS_CONTINUE;
 	}
 
-	if (wps_validate_m8_encr(decrypted, wps->wps->ap, attr->version2 != 0)
-	    < 0) {
+	if (wps_validate_m8_encr(decrypted, wps->wps->ap,
+				 attr->version2 != NULL) < 0) {
 		wpabuf_free(decrypted);
 		wps->state = SEND_WSC_NACK;
 		return WPS_CONTINUE;