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-rw-r--r--src/crypt/crypt_r.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/crypt/crypt_r.c b/src/crypt/crypt_r.c
index 3257e8b9..5982c4c9 100644
--- a/src/crypt/crypt_r.c
+++ b/src/crypt/crypt_r.c
@@ -11,6 +11,10 @@ char *__crypt_sha512(const char *, const char *, char *);
char *__crypt_r(const char *key, const char *salt, struct crypt_data *data)
{
+ /* Per the crypt_r API, the caller has provided a pointer to
+ * struct crypt_data; however, this implementation does not
+ * use the structure to store any internal state, and treats
+ * it purely as a char buffer for storing the result. */
char *output = (char *)data;
if (salt[0] == '$' && salt[1] && salt[2]) {
if (salt[1] == '1' && salt[2] == '$')