1 files changed, 21 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/env/clearenv.c b/libc-top-half/musl/src/env/clearenv.c
new file mode 100644
index 0000000..0abbec3
--- /dev/null
+++ b/libc-top-half/musl/src/env/clearenv.c
@@ -0,0 +1,21 @@
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <unistd.h>
+
+static void dummy(char *old, char *new) {}
+weak_alias(dummy, __env_rm_add);
+
+int clearenv()
+{
+#ifdef __wasilibc_unmodified_upstream // Lazy environment variable init.
+#else
+// This specialized header is included within the function body to arranges for
+// the environment variables to be lazily initialized. It redefined `__environ`,
+// so don't remove or reorder it with respect to other code.
+#include "wasi/libc-environ-compat.h"
+#endif
+	char **e = __environ;
+	__environ = 0;
+	if (e) while (*e) __env_rm_add(*e++, 0);
+	return 0;
+}