Allow NULL as map name in dt_bpf_map_create()

Signed-off-by: Kris Van Hees <kris.van.hees@oracle.com> Reviewed-by: Eugene Loh <eugene.loh@oracle.com>
oracle · Aug 31, 2022 · aeca759 · aeca759
1 parent 1c4f17d
commit aeca759
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/libdtrace/dt_bpf.c b/libdtrace/dt_bpf.c
@@ -113,8 +113,9 @@ dt_bpf_map_create(enum bpf_map_type map_type, const char *name,
 	attr.value_size = value_size;
 	attr.max_entries = max_entries;
 	attr.map_flags = map_flags;
-	memcpy(attr.map_name, name, MIN(strlen(name),
-					sizeof(attr.map_name) - 1));
+	if (name)
+		memcpy(attr.map_name, name, MIN(strlen(name),
+						sizeof(attr.map_name) - 1));
 
 	return bpf(BPF_MAP_CREATE, &attr);
 }