frontend, sysdb: Correctly handle empty queries.

[sysdb.git] / src / tools / sysdb / command.c

diff --git a/src/tools/sysdb/command.c b/src/tools/sysdb/command.c
index d30ec6084179a614fcf386cf87e3a9dcad9e0079..81f679233d969ccb203f5f938c07e6d5f98fd693 100644 (file)
--- a/src/tools/sysdb/command.c
+++ b/src/tools/sysdb/command.c
@@ -65,7 +65,13 @@ log_printer(sdb_strbuf_t *buf)
 static void
 data_printer(sdb_strbuf_t *buf)
 {
-       if (sdb_strbuf_len(buf) <= sizeof(uint32_t)) {
+       size_t len = sdb_strbuf_len(buf);
+
+       if ((! len) || (len == sizeof(uint32_t))) {
+               /* empty command or empty reply */
+               return;
+       }
+       else if (len < sizeof(uint32_t)) {
                printf("ERROR: Received a DATA message with invalid "
                                "or missing data-type\n");
                return;