lib/rsa: avoid -Wdiscarded-qualifiers
The return type of EVP_PKEY_get0_RSA() is const struct rsa_st *.
Our code drops the const qualifier leading to
In file included from tools/lib/rsa/rsa-sign.c:1:
./tools/../lib/rsa/rsa-sign.c: In function ‘rsa_add_verify_data’:
./tools/../lib/rsa/rsa-sign.c:631:13: warning:
assignment discards ‘const’ qualifier from pointer target type
[-Wdiscarded-qualifiers]
631 | rsa = EVP_PKEY_get0_RSA(pkey);
| ^
Add a type conversion.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/lib/rsa/rsa-sign.c b/lib/rsa/rsa-sign.c
index 44f2141..3b6e5f0 100644
--- a/lib/rsa/rsa-sign.c
+++ b/lib/rsa/rsa-sign.c
@@ -628,7 +628,7 @@
if (ret)
goto err_get_pub_key;
- rsa = EVP_PKEY_get0_RSA(pkey);
+ rsa = (RSA *)EVP_PKEY_get0_RSA(pkey);
ret = rsa_get_params(rsa, &exponent, &n0_inv, &modulus, &r_squared);
if (ret)
goto err_get_params;