=item int B<SSL_CTX_get_verify_mode>(SSL_CTX *ctx);
-=item int B<SSL_CTX_load_verify_locations>(SSL_CTX *ctx, char *CAfile, char *CApath);
+=item int B<SSL_CTX_load_verify_locations>(SSL_CTX *ctx, const char *CAfile, const char *CApath);
=item long B<SSL_CTX_need_tmp_RSA>(SSL_CTX *ctx);
=item int B<SSL_CTX_use_PrivateKey_ASN1>(int type, SSL_CTX *ctx, unsigned char *d, long len);
-=item int B<SSL_CTX_use_PrivateKey_file>(SSL_CTX *ctx, char *file, int type);
+=item int B<SSL_CTX_use_PrivateKey_file>(SSL_CTX *ctx, const char *file, int type);
=item int B<SSL_CTX_use_RSAPrivateKey>(SSL_CTX *ctx, RSA *rsa);
=item int B<SSL_CTX_use_RSAPrivateKey_ASN1>(SSL_CTX *ctx, unsigned char *d, long len);
-=item int B<SSL_CTX_use_RSAPrivateKey_file>(SSL_CTX *ctx, char *file, int type);
+=item int B<SSL_CTX_use_RSAPrivateKey_file>(SSL_CTX *ctx, const char *file, int type);
=item int B<SSL_CTX_use_certificate>(SSL_CTX *ctx, X509 *x);
=item int B<SSL_CTX_use_certificate_ASN1>(SSL_CTX *ctx, int len, unsigned char *d);
-=item int B<SSL_CTX_use_certificate_file>(SSL_CTX *ctx, char *file, int type);
+=item int B<SSL_CTX_use_certificate_file>(SSL_CTX *ctx, const char *file, int type);
=item X509 *B<SSL_CTX_get0_certificate>(const SSL_CTX *ctx);
=item int B<SSL_is_init_finished>(SSL *ssl);
-=item STACK *B<SSL_load_client_CA_file>(char *file);
+=item STACK *B<SSL_load_client_CA_file>(const char *file);
=item SSL *B<SSL_new>(SSL_CTX *ctx);
=item int B<SSL_use_PrivateKey_ASN1>(int type, SSL *ssl, unsigned char *d, long len);
-=item int B<SSL_use_PrivateKey_file>(SSL *ssl, char *file, int type);
+=item int B<SSL_use_PrivateKey_file>(SSL *ssl, const char *file, int type);
=item int B<SSL_use_RSAPrivateKey>(SSL *ssl, RSA *rsa);
=item int B<SSL_use_RSAPrivateKey_ASN1>(SSL *ssl, unsigned char *d, long len);
-=item int B<SSL_use_RSAPrivateKey_file>(SSL *ssl, char *file, int type);
+=item int B<SSL_use_RSAPrivateKey_file>(SSL *ssl, const char *file, int type);
=item int B<SSL_use_certificate>(SSL *ssl, X509 *x);
=item int B<SSL_use_certificate_ASN1>(SSL *ssl, int len, unsigned char *d);
-=item int B<SSL_use_certificate_file>(SSL *ssl, char *file, int type);
+=item int B<SSL_use_certificate_file>(SSL *ssl, const char *file, int type);
=item int B<SSL_version>(const SSL *ssl);