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-rw-r--r--src/env.c10
-rw-r--r--tests/env_test.c4
2 files changed, 13 insertions, 1 deletions
diff --git a/src/env.c b/src/env.c
index 5996b221..11655134 100644
--- a/src/env.c
+++ b/src/env.c
@@ -108,7 +108,7 @@ serd_env_get_parsed_base_uri(const SerdEnv* env)
const SerdNode*
serd_env_base_uri(const SerdEnv* env)
{
- return env->base_uri_node;
+ return env ? env->base_uri_node : NULL;
}
SerdStatus
@@ -204,6 +204,10 @@ serd_env_qualify_in_place(const SerdEnv* env,
const SerdNode** prefix,
SerdStringView* suffix)
{
+ if (!env) {
+ return false;
+ }
+
for (size_t i = 0; i < env->n_prefixes; ++i) {
const SerdNode* const prefix_uri = env->prefixes[i].uri;
if (uri->n_bytes >= prefix_uri->n_bytes) {
@@ -263,6 +267,10 @@ serd_env_expand_in_place(const SerdEnv* env,
SerdStringView* uri_prefix,
SerdStringView* uri_suffix)
{
+ if (!env) {
+ return SERD_ERR_BAD_CURIE;
+ }
+
const char* const str = serd_node_string(curie);
const char* const colon = (const char*)memchr(str, ':', curie->n_bytes + 1);
if (curie->type != SERD_CURIE || !colon) {
diff --git a/tests/env_test.c b/tests/env_test.c
index cc04366d..cff8e3cf 100644
--- a/tests/env_test.c
+++ b/tests/env_test.c
@@ -46,6 +46,10 @@ test_env(void)
SerdEnv* env = serd_env_new(NULL);
serd_env_set_prefix(env, pre, eg);
+ assert(!serd_env_base_uri(NULL));
+ assert(!serd_env_expand(NULL, NULL));
+ assert(!serd_env_qualify(NULL, NULL));
+
assert(!serd_env_base_uri(env));
assert(serd_env_set_base_uri(env, NULL));
assert(serd_env_set_base_uri(env, empty));