Use void in all function definitions that do not take any arguments

Reviewed-by: Rich Salz <rsalz@openssl.org>
GH: #6208

apps/apps.c

@@ -2486,7 +2486,7 @@ BIO *dup_bio_err(int format)
     return b;
 }
 
-void destroy_prefix_method()
+void destroy_prefix_method(void)
 {
     BIO_meth_free(prefix_method);
     prefix_method = NULL;

apps/openssl.c

@@ -74,7 +74,7 @@ static void calculate_columns(DISPLAY_COLUMNS *dc)
     dc->columns = (80 - 1) / dc->width;
 }
 
-static int apps_startup()
+static int apps_startup(void)
 {
 #ifdef SIGPIPE
     signal(SIGPIPE, SIG_IGN);
@@ -90,13 +90,13 @@ static int apps_startup()
     return 1;
 }
 
-static void apps_shutdown()
+static void apps_shutdown(void)
 {
     destroy_ui_method();
     destroy_prefix_method();
 }
 
-static char *make_config_name()
+static char *make_config_name(void)
 {
     const char *t;
     size_t len;

crypto/bio/bio_meth.c

@@ -19,7 +19,7 @@ DEFINE_RUN_ONCE_STATIC(do_bio_type_init)
     return bio_type_lock != NULL;
 }
 
-int BIO_get_new_index()
+int BIO_get_new_index(void)
 {
     static CRYPTO_REF_COUNT bio_count = BIO_TYPE_START;
     int newval;

crypto/conf/conf_def.c

@@ -85,12 +85,12 @@ static CONF_METHOD WIN32_method = {
     def_load
 };
 
-CONF_METHOD *NCONF_default()
+CONF_METHOD *NCONF_default(void)
 {
     return &default_method;
 }
 
-CONF_METHOD *NCONF_WIN32()
+CONF_METHOD *NCONF_WIN32(void)
 {
     return &WIN32_method;
 }

crypto/ct/ct_log.c

@@ -54,7 +54,7 @@ static CTLOG_STORE_LOAD_CTX *ctlog_store_load_ctx_new();
  */
 static void ctlog_store_load_ctx_free(CTLOG_STORE_LOAD_CTX* ctx);
 
-static CTLOG_STORE_LOAD_CTX *ctlog_store_load_ctx_new()
+static CTLOG_STORE_LOAD_CTX *ctlog_store_load_ctx_new(void)
 {
     CTLOG_STORE_LOAD_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
 

crypto/engine/tb_cipher.c

@@ -34,7 +34,7 @@ int ENGINE_register_ciphers(ENGINE *e)
     return 1;
 }
 
-void ENGINE_register_all_ciphers()
+void ENGINE_register_all_ciphers(void)
 {
     ENGINE *e;
 

crypto/engine/tb_dh.c

@@ -31,7 +31,7 @@ int ENGINE_register_DH(ENGINE *e)
     return 1;
 }
 
-void ENGINE_register_all_DH()
+void ENGINE_register_all_DH(void)
 {
     ENGINE *e;
 

crypto/engine/tb_digest.c

@@ -34,7 +34,7 @@ int ENGINE_register_digests(ENGINE *e)
     return 1;
 }
 
-void ENGINE_register_all_digests()
+void ENGINE_register_all_digests(void)
 {
     ENGINE *e;
 

crypto/engine/tb_dsa.c

@@ -31,7 +31,7 @@ int ENGINE_register_DSA(ENGINE *e)
     return 1;
 }
 
-void ENGINE_register_all_DSA()
+void ENGINE_register_all_DSA(void)
 {
     ENGINE *e;
 

crypto/engine/tb_eckey.c

@@ -31,7 +31,7 @@ int ENGINE_register_EC(ENGINE *e)
     return 1;
 }
 
-void ENGINE_register_all_EC()
+void ENGINE_register_all_EC(void)
 {
     ENGINE *e;
 

crypto/engine/tb_pkmeth.c

@@ -35,7 +35,7 @@ int ENGINE_register_pkey_meths(ENGINE *e)
     return 1;
 }
 
-void ENGINE_register_all_pkey_meths()
+void ENGINE_register_all_pkey_meths(void)
 {
     ENGINE *e;
 

crypto/engine/tb_rand.c

@@ -31,7 +31,7 @@ int ENGINE_register_RAND(ENGINE *e)
     return 1;
 }
 
-void ENGINE_register_all_RAND()
+void ENGINE_register_all_RAND(void)
 {
     ENGINE *e;
 

crypto/engine/tb_rsa.c

@@ -31,7 +31,7 @@ int ENGINE_register_RSA(ENGINE *e)
     return 1;
 }
 
-void ENGINE_register_all_RSA()
+void ENGINE_register_all_RSA(void)
 {
     ENGINE *e;
 

crypto/mem_sec.c

@@ -92,7 +92,7 @@ int CRYPTO_secure_malloc_init(size_t size, int minsize)
 #endif /* IMPLEMENTED */
 }
 
-int CRYPTO_secure_malloc_done()
+int CRYPTO_secure_malloc_done(void)
 {
 #ifdef IMPLEMENTED
     if (secure_mem_used == 0) {
@@ -106,7 +106,7 @@ int CRYPTO_secure_malloc_done()
     return 0;
 }
 
-int CRYPTO_secure_malloc_initialized()
+int CRYPTO_secure_malloc_initialized(void)
 {
 #ifdef IMPLEMENTED
     return secure_mem_initialized;
@@ -209,7 +209,7 @@ int CRYPTO_secure_allocated(const void *ptr)
 #endif /* IMPLEMENTED */
 }
 
-size_t CRYPTO_secure_used()
+size_t CRYPTO_secure_used(void)
 {
 #ifdef IMPLEMENTED
     return secure_mem_used;
@@ -500,7 +500,7 @@ static int sh_init(size_t size, int minsize)
     return 0;
 }
 
-static void sh_done()
+static void sh_done(void)
 {
     OPENSSL_free(sh.freelist);
     OPENSSL_free(sh.bittable);

crypto/poly1305/poly1305.c

@@ -14,7 +14,7 @@
 #include "internal/poly1305.h"
 #include "poly1305_local.h"
 
-size_t Poly1305_ctx_size ()
+size_t Poly1305_ctx_size(void)
 {
     return sizeof(struct poly1305_context);
 }

crypto/rand/drbg_lib.c

@@ -921,7 +921,7 @@ void rand_drbg_cleanup_int(void)
     }
 }
 
-void drbg_delete_thread_state()
+void drbg_delete_thread_state(void)
 {
     RAND_DRBG *drbg;
 

crypto/rand/rand_lib.c

@@ -303,7 +303,7 @@ void rand_drbg_cleanup_additional_data(unsigned char *out, size_t outlen)
     OPENSSL_secure_clear_free(out, outlen);
 }
 
-void rand_fork()
+void rand_fork(void)
 {
     rand_fork_count++;
 }

crypto/store/store_init.c

@@ -18,7 +18,7 @@ DEFINE_RUN_ONCE_STATIC(do_store_init)
         && ossl_store_file_loader_init();
 }
 
-int ossl_store_init_once()
+int ossl_store_init_once(void)
 {
     if (!RUN_ONCE(&store_init, do_store_init)) {
         OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_INIT_ONCE, ERR_R_MALLOC_FAILURE);

crypto/ts/ts_rsp_sign.c

@@ -117,7 +117,7 @@ static int def_extension_cb(struct TS_resp_ctx *ctx, X509_EXTENSION *ext,
 
 /* TS_RESP_CTX management functions. */
 
-TS_RESP_CTX *TS_RESP_CTX_new()
+TS_RESP_CTX *TS_RESP_CTX_new(void)
 {
     TS_RESP_CTX *ctx;
 

crypto/x509/x509_lu.c

@@ -391,7 +391,7 @@ X509_LOOKUP_TYPE X509_OBJECT_get_type(const X509_OBJECT *a)
     return a->type;
 }
 
-X509_OBJECT *X509_OBJECT_new()
+X509_OBJECT *X509_OBJECT_new(void)
 {
     X509_OBJECT *ret = OPENSSL_zalloc(sizeof(*ret));
 

ssl/pqueue.c

@@ -35,7 +35,7 @@ void pitem_free(pitem *item)
     OPENSSL_free(item);
 }
 
-pqueue *pqueue_new()
+pqueue *pqueue_new(void)
 {
     pqueue *pq = OPENSSL_zalloc(sizeof(*pq));
 

test/asynciotest.c

@@ -42,7 +42,7 @@ struct async_ctrs {
     unsigned int wctr;
 };
 
-static const BIO_METHOD *bio_f_async_filter()
+static const BIO_METHOD *bio_f_async_filter(void)
 {
     if (methods_async == NULL) {
         methods_async = BIO_meth_new(BIO_TYPE_ASYNC_FILTER, "Async filter");

test/asynctest.c

@@ -87,7 +87,7 @@ static int blockpause(void *args)
     return 1;
 }
 
-static int test_ASYNC_init_thread()
+static int test_ASYNC_init_thread(void)
 {
     ASYNC_JOB *job1 = NULL, *job2 = NULL, *job3 = NULL;
     int funcret1, funcret2, funcret3;
@@ -123,7 +123,7 @@ static int test_ASYNC_init_thread()
     return 1;
 }
 
-static int test_ASYNC_start_job()
+static int test_ASYNC_start_job(void)
 {
     ASYNC_JOB *job = NULL;
     int funcret;
@@ -151,7 +151,7 @@ static int test_ASYNC_start_job()
     return 1;
 }
 
-static int test_ASYNC_get_current_job()
+static int test_ASYNC_get_current_job(void)
 {
     ASYNC_JOB *job = NULL;
     int funcret;
@@ -178,7 +178,7 @@ static int test_ASYNC_get_current_job()
     return 1;
 }
 
-static int test_ASYNC_WAIT_CTX_get_all_fds()
+static int test_ASYNC_WAIT_CTX_get_all_fds(void)
 {
     ASYNC_JOB *job = NULL;
     int funcret;
@@ -245,7 +245,7 @@ static int test_ASYNC_WAIT_CTX_get_all_fds()
     return 1;
 }
 
-static int test_ASYNC_block_pause()
+static int test_ASYNC_block_pause(void)
 {
     ASYNC_JOB *job = NULL;
     int funcret;

test/cipherlist_test.c

@@ -215,7 +215,7 @@ static int test_default_cipherlist_explicit(void)
     return result;
 }
 
-int setup_tests()
+int setup_tests(void)
 {
     ADD_TEST(test_default_cipherlist_implicit);
     ADD_TEST(test_default_cipherlist_explicit);

test/drbgtest.c

@@ -554,7 +554,7 @@ static void reset_hook_ctx(HOOK_CTX *ctx)
 }
 
 /* Resets all drbg hook contexts */
-static void reset_drbg_hook_ctx()
+static void reset_drbg_hook_ctx(void)
 {
     reset_hook_ctx(&master_ctx);
     reset_hook_ctx(&public_ctx);

test/dtls_mtu_test.c

@@ -189,7 +189,7 @@ static int run_mtu_tests(void)
     return ret;
 }
 
-int setup_tests()
+int setup_tests(void)
 {
     ADD_TEST(run_mtu_tests);
     return 1;

test/dtlsv1listentest.c

@@ -348,7 +348,7 @@ static int dtls_listen_test(int i)
 }
 #endif
 
-int setup_tests()
+int setup_tests(void)
 {
 #ifndef OPENSSL_NO_SOCK
     ADD_ALL_TESTS(dtls_listen_test, (int)OSSL_NELEM(testpackets));

test/evp_test.c

@@ -2378,7 +2378,7 @@ static void free_key_list(KEY_LIST *lst)
 /*
  * Is the key type an unsupported algorithm?
  */
-static int key_unsupported()
+static int key_unsupported(void)
 {
     long err = ERR_peek_error();
 

test/exdatatest.c

@@ -127,7 +127,7 @@ typedef struct myobj_st {
     int st;
 } MYOBJ;
 
-static MYOBJ *MYOBJ_new()
+static MYOBJ *MYOBJ_new(void)
 {
     static int count = 0;
     MYOBJ *obj = OPENSSL_malloc(sizeof(*obj));

test/generate_buildtest.pl

@@ -27,7 +27,7 @@ print <<"_____";
 # include <openssl/$name.h>
 #endif
 
-int main()
+int main(void)
 {
     return 0;
 }

test/handshake_helper.c

@@ -22,7 +22,7 @@
 #include "handshake_helper.h"
 #include "testutil.h"
 
-HANDSHAKE_RESULT *HANDSHAKE_RESULT_new()
+HANDSHAKE_RESULT *HANDSHAKE_RESULT_new(void)
 {
     HANDSHAKE_RESULT *ret;
 

test/mdc2_internal_test.c

@@ -64,7 +64,7 @@ static int test_mdc2(int idx)
     return 1;
 }
 
-int setup_tests()
+int setup_tests(void)
 {
     ADD_ALL_TESTS(test_mdc2, OSSL_NELEM(tests));
     return 1;

test/modes_internal_test.c

@@ -99,7 +99,7 @@ static const SIZED_DATA aes_cts128_vectors[] = {
     CTS128_TEST_VECTOR(64),
 };
 
-static AES_KEY *cts128_encrypt_key_schedule()
+static AES_KEY *cts128_encrypt_key_schedule(void)
 {
     static int init_key = 1;
     static AES_KEY ks;
@@ -111,7 +111,7 @@ static AES_KEY *cts128_encrypt_key_schedule()
     return &ks;
 }
 
-static AES_KEY *cts128_decrypt_key_schedule()
+static AES_KEY *cts128_decrypt_key_schedule(void)
 {
     static int init_key = 1;
     static AES_KEY ks;

test/pkey_meth_kdf_test.c

@@ -170,7 +170,7 @@ static int test_kdf_scrypt(void)
 }
 #endif
 
-int setup_tests()
+int setup_tests(void)
 {
     ADD_TEST(test_kdf_tls1_prf);
     ADD_TEST(test_kdf_hkdf);

test/pkey_meth_test.c

@@ -75,7 +75,7 @@ static int test_pkey_meths(void)
     return good;
 }
 
-int setup_tests()
+int setup_tests(void)
 {
     ADD_TEST(test_asn1_meths);
     ADD_TEST(test_pkey_meths);

test/rdrand_sanitytest.c

@@ -20,7 +20,7 @@
 size_t OPENSSL_ia32_rdrand_bytes(unsigned char *buf, size_t len);
 size_t OPENSSL_ia32_rdseed_bytes(unsigned char *buf, size_t len);
 
-void OPENSSL_cpuid_setup();
+void OPENSSL_cpuid_setup(void);
 
 extern unsigned int OPENSSL_ia32cap_P[4];
 
@@ -81,12 +81,12 @@ end:
     return testresult;
 }
 
-static int sanity_check_rdrand_bytes()
+static int sanity_check_rdrand_bytes(void)
 {
     return sanity_check_bytes(OPENSSL_ia32_rdrand_bytes, 1000, 0, 10, 10);
 }
 
-static int sanity_check_rdseed_bytes()
+static int sanity_check_rdseed_bytes(void)
 {
     /*-
      * RDSEED may take many retries to succeed; note that this is effectively
@@ -97,7 +97,8 @@ static int sanity_check_rdseed_bytes()
     return sanity_check_bytes(OPENSSL_ia32_rdseed_bytes, 1000, 1, 10000, 10);
 }
 
-int setup_tests() {
+int setup_tests(void)
+{
     OPENSSL_cpuid_setup();
 
     int have_rdseed = (OPENSSL_ia32cap_P[2] & (1 << 18)) != 0;
@@ -117,7 +118,7 @@ int setup_tests() {
 
 #else
 
-int setup_tests()
+int setup_tests(void)
 {
     return 1;
 }

test/ssl_cert_table_internal_test.c

@@ -76,7 +76,7 @@ static int test_ssl_cert_table(void)
     return 1;
 }
 
-int setup_tests()
+int setup_tests(void)
 {
     ADD_TEST(test_ssl_cert_table);
     return 1;

test/ssl_test_ctx.c

@@ -709,7 +709,7 @@ static const ssl_test_server_option ssl_test_server_options[] = {
     { "SessionTicketAppData", &parse_server_session_ticket_app_data },
 };
 
-SSL_TEST_CTX *SSL_TEST_CTX_new()
+SSL_TEST_CTX *SSL_TEST_CTX_new(void)
 {
     SSL_TEST_CTX *ret;
 

test/sslcorrupttest.c

@@ -137,7 +137,7 @@ static void bio_f_tls_corrupt_filter_free(void)
  */
 static const char **cipher_list = NULL;
 
-static int setup_cipher_list()
+static int setup_cipher_list(void)
 {
     SSL_CTX *ctx = NULL;
     SSL *ssl = NULL;

test/ssltest_old.c

@@ -423,7 +423,7 @@ static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
     return 1;
 }
 
-static int verify_serverinfo()
+static int verify_serverinfo(void)
 {
     if (serverinfo_sct != serverinfo_sct_seen)
         return -1;
@@ -2836,7 +2836,7 @@ static int app_verify_callback(X509_STORE_CTX *ctx, void *arg)
  *    $ openssl dhparam -C -noout -dsaparam 1024
  * (The third function has been renamed to avoid name conflicts.)
  */
-static DH *get_dh512()
+static DH *get_dh512(void)
 {
     static unsigned char dh512_p[] = {
         0xCB, 0xC8, 0xE1, 0x86, 0xD0, 0x1F, 0x94, 0x17, 0xA6, 0x99, 0xF0,
@@ -2870,7 +2870,7 @@ static DH *get_dh512()
     return dh;
 }
 
-static DH *get_dh1024()
+static DH *get_dh1024(void)
 {
     static unsigned char dh1024_p[] = {
         0xF8, 0x81, 0x89, 0x7D, 0x14, 0x24, 0xC5, 0xD1, 0xE6, 0xF7, 0xBF,
@@ -2914,7 +2914,7 @@ static DH *get_dh1024()
     return dh;
 }
 
-static DH *get_dh1024dsa()
+static DH *get_dh1024dsa(void)
 {
     static unsigned char dh1024_p[] = {
         0xC8, 0x00, 0xF7, 0x08, 0x07, 0x89, 0x4D, 0x90, 0x53, 0xF3, 0xD5,

test/time_offset_test.c

@@ -106,7 +106,7 @@ static int test_offset(int idx)
     return 1;
 }
 
-int setup_tests()
+int setup_tests(void)
 {
     ADD_ALL_TESTS(test_offset, OSSL_NELEM(tests));
     return 1;

test/tls13ccstest.c

@@ -37,7 +37,7 @@ static int watchccs_puts(BIO *bp, const char *str);
 
 static BIO_METHOD *method_watchccs = NULL;
 
-static const BIO_METHOD *bio_f_watchccs_filter()
+static const BIO_METHOD *bio_f_watchccs_filter(void)
 {
     if (method_watchccs == NULL) {
         method_watchccs = BIO_meth_new(BIO_TYPE_WATCHCCS_FILTER,

test/tls13secretstest.c

@@ -399,7 +399,7 @@ static int test_handshake_secrets(void)
     return ret;
 }
 
-int setup_tests()
+int setup_tests(void)
 {
     ADD_TEST(test_handshake_secrets);
     return 1;

test/v3nametest.c

@@ -251,7 +251,7 @@ static const struct set_name_fn name_fns[] = {
     {set_altname_email, "set rfc822Name", 0, 1},
 };
 
-static X509 *make_cert()
+static X509 *make_cert(void)
 {
     X509 *crt = NULL;
 

test/x509_internal_test.c

@@ -57,7 +57,7 @@ static int test_standard_exts(void)
     return good;
 }
 
-int setup_tests()
+int setup_tests(void)
 {
     ADD_TEST(test_standard_exts);
     return 1;

test/x509_time_test.c

@@ -482,7 +482,7 @@ static int test_x509_time_print(int idx)
     return ret;
 }
 
-int setup_tests()
+int setup_tests(void)
 {
     ADD_TEST(test_x509_cmp_time_current);
     ADD_ALL_TESTS(test_x509_cmp_time, OSSL_NELEM(x509_cmp_tests));