fixup! Add const qualifiers for OpenSSL 4.0 compatibility

Author: rhenium

ext/openssl/ossl_x509cert.c

@@ -54,7 +54,8 @@ ossl_x509_new(const X509 *x509)
     VALUE obj;
 
     obj = NewX509(cX509Cert);
-    new = X509_dup(x509);
+    /* OpenSSL 1.1.1 takes a non-const pointer */
+    new = X509_dup((X509 *)x509);
     if (!new)
         ossl_raise(eX509CertError, "X509_dup");
     SetX509(obj, new);

ext/openssl/ossl_x509crl.c

@@ -64,7 +64,8 @@ ossl_x509crl_new(const X509_CRL *crl)
     VALUE obj;
 
     obj = NewX509CRL(cX509CRL);
-    tmp = X509_CRL_dup(crl);
+    /* OpenSSL 1.1.1 takes a non-const pointer */
+    tmp = X509_CRL_dup((X509_CRL *)crl);
     if (!tmp)
         ossl_raise(eX509CRLError, "X509_CRL_dup");
     SetX509CRL(obj, tmp);

ext/openssl/ossl_x509ext.c

@@ -68,7 +68,8 @@ ossl_x509ext_new(const X509_EXTENSION *ext)
     VALUE obj;
 
     obj = NewX509Ext(cX509Ext);
-    new = X509_EXTENSION_dup(ext);
+    /* OpenSSL 1.1.1 takes a non-const pointer */
+    new = X509_EXTENSION_dup((X509_EXTENSION *)ext);
     if (!new)
         ossl_raise(eX509ExtError, "X509_EXTENSION_dup");
     SetX509Ext(obj, new);

ext/openssl/ossl_x509name.c

@@ -59,7 +59,8 @@ ossl_x509name_new(const X509_NAME *name)
     VALUE obj;
 
     obj = NewX509Name(cX509Name);
-    new = X509_NAME_dup(name);
+    /* OpenSSL 1.1.1 takes a non-const pointer */
+    new = X509_NAME_dup((X509_NAME *)name);
     if (!new)
         ossl_raise(eX509NameError, "X509_NAME_dup");
     SetX509Name(obj, new);

ext/openssl/ossl_x509revoked.c

@@ -54,7 +54,8 @@ ossl_x509revoked_new(const X509_REVOKED *rev)
     VALUE obj;
 
     obj = NewX509Rev(cX509Rev);
-    new = X509_REVOKED_dup(rev);
+    /* OpenSSL 1.1.1 takes a non-const pointer */
+    new = X509_REVOKED_dup((X509_REVOKED *)rev);
     if (!new)
         ossl_raise(eX509RevError, "X509_REVOKED_dup");
     SetX509Rev(obj, new);