@@ -180,7 +180,7 @@ buf_assign(struct buffer *dest, const struct buffer *src)

 }

 struct buffer

-clear_buf()

+clear_buf(void)

 {

     struct buffer buf;

     CLEAR(buf);

@@ -44,7 +44,7 @@ struct _query_user query_user[QUERY_USER_NUMSLOTS];  /* GLOBAL */

 void

-query_user_clear()

+query_user_clear(void)

 {

     int i;

@@ -46,7 +46,7 @@ extern struct _query_user query_user[];  /**< Global variable, declared in conso

  * Wipes all data put into all of the query_user structs

  *

  */

-void query_user_clear();

+void query_user_clear(void);

 /**

@@ -72,7 +72,7 @@ void query_user_add(char *prompt, size_t prompt_len,

  *

  * @return True if executing all the defined steps completed successfully

  */

-bool query_user_exec_builtin();

+bool query_user_exec_builtin(void);

 #if defined(ENABLE_SYSTEMD)

@@ -83,7 +83,7 @@ bool query_user_exec_builtin();

  *

  * @return True if executing all the defined steps completed successfully

  */

-bool query_user_exec();

+bool query_user_exec(void);

 #else  /* ENABLE_SYSTEMD not defined*/

 /**

@@ -92,7 +92,7 @@ bool query_user_exec();

  *

  */

 static bool

-query_user_exec()

+query_user_exec(void)

 {

     return query_user_exec_builtin();

 }

@@ -267,7 +267,7 @@ get_console_input(const char *prompt, const bool echo, char *input, const int ca

  *

  */

 bool

-query_user_exec_builtin()

+query_user_exec_builtin(void)

 {

     bool ret = true; /* Presume everything goes okay */

     int i;

@@ -41,7 +41,7 @@

  */

 static bool

-check_systemd_running()

+check_systemd_running(void)

 {

     struct stat c;

@@ -95,7 +95,7 @@ get_console_input_systemd(const char *prompt, const bool echo, char *input, cons

  *

  */

 bool

-query_user_exec()

+query_user_exec(void)

 {

     bool ret = true;  /* Presume everything goes okay */

     int i;

@@ -1693,7 +1693,7 @@ static int nonce_secret_len = 0; /* GLOBAL */

 /* Reset the nonce value, also done periodically to refresh entropy */

 static void

-prng_reset_nonce()

+prng_reset_nonce(void)

 {

     const int size = md_kt_size(nonce_md) + nonce_secret_len;

 #if 1 /* Must be 1 for real usage */

@@ -1772,7 +1772,7 @@ prng_bytes(uint8_t *output, int len)

 /* an analogue to the random() function, but use prng_bytes */

 long int

-get_random()

+get_random(void)

 {

     long int l;

     prng_bytes((unsigned char *)&l, sizeof(l));

@@ -453,7 +453,7 @@ void prng_init(const char *md_name, const int nonce_secret_len_parm);

  */

 void prng_bytes(uint8_t *output, int len);

-void prng_uninit();

+void prng_uninit(void);

 void test_crypto(struct crypto_options *co, struct frame *f);

@@ -159,7 +159,7 @@ print_cipher(const cipher_kt_t *info)

 }

 void

-show_available_ciphers()

+show_available_ciphers(void)

 {

     const int *ciphers = mbedtls_cipher_list();

@@ -196,7 +196,7 @@ show_available_ciphers()

 }

 void

-show_available_digests()

+show_available_digests(void)

 {

     const int *digests = mbedtls_md_list();

@@ -223,7 +223,7 @@ show_available_digests()

 }

 void

-show_available_engines()

+show_available_engines(void)

 {

     printf("Sorry, mbed TLS hardware crypto engine functionality is not "

            "available\n");

@@ -243,7 +243,7 @@ show_available_engines()

  * entropy gathering function.

  */

 mbedtls_ctr_drbg_context *

-rand_ctx_get()

+rand_ctx_get(void)

 {

     static mbedtls_entropy_context ec = {0};

     static mbedtls_ctr_drbg_context cd_ctx = {0};

@@ -280,7 +280,7 @@ rand_ctx_get()

 #ifdef ENABLE_PREDICTION_RESISTANCE

 void

-rand_ctx_enable_prediction_resistance()

+rand_ctx_enable_prediction_resistance(void)

 {

     mbedtls_ctr_drbg_context *cd_ctx = rand_ctx_get();

@@ -85,13 +85,13 @@ typedef mbedtls_md_context_t hmac_ctx_t;

  * added. During initialisation, a personalisation string will be added based

  * on the time, the PID, and a pointer to the random context.

  */

-mbedtls_ctr_drbg_context *rand_ctx_get();

+mbedtls_ctr_drbg_context *rand_ctx_get(void);

 #ifdef ENABLE_PREDICTION_RESISTANCE

 /**

  * Enable prediction resistance on the random number generator.

  */

-void rand_ctx_enable_prediction_resistance();

+void rand_ctx_enable_prediction_resistance(void);

 #endif

@@ -280,7 +280,7 @@ print_cipher(const EVP_CIPHER *cipher)

 }

 void

-show_available_ciphers()

+show_available_ciphers(void)

 {

     int nid;

     size_t i;

@@ -339,7 +339,7 @@ show_available_ciphers()

 }

 void

-show_available_digests()

+show_available_digests(void)

 {

     int nid;

@@ -364,7 +364,7 @@ show_available_digests()

 }

 void

-show_available_engines()

+show_available_engines(void)

 {

 #if HAVE_OPENSSL_ENGINE /* Only defined for OpenSSL */

     ENGINE *e;

@@ -159,7 +159,7 @@ set_machine_readable_output(bool parsable)

 }

 void

-error_reset()

+error_reset(void)

 {

     use_syslog = std_redir = false;

     suppress_timestamps = false;

@@ -480,7 +480,7 @@ open_syslog(const char *pgmname, bool stdio_to_null)

 }

 void

-close_syslog()

+close_syslog(void)

 {

 #if SYSLOG_CAPABILITY

     if (use_syslog)

@@ -635,7 +635,7 @@ unsigned int x_cs_verbose_level; /* GLOBAL */

 unsigned int x_cs_err_delay_ms;  /* GLOBAL */

 void

-reset_check_status()

+reset_check_status(void)

 {

     x_cs_info_level = 0;

     x_cs_verbose_level = 0;

@@ -261,7 +261,7 @@ void msg_forked(void);

 void open_syslog(const char *pgmname, bool stdio_to_null);

-void close_syslog();

+void close_syslog(void);

 /* log file output */

 void redirect_stdout_stderr(const char *file, bool append);

@@ -1917,7 +1917,7 @@ do_close_tun(struct context *c, bool force)

 }

 void

-tun_abort()

+tun_abort(void)

 {

     struct context *c = static_context;

     if (c)

@@ -155,7 +155,7 @@ event_timeout_clear(struct event_timeout *et)

 }

 static inline struct event_timeout

-event_timeout_clear_ret()

+event_timeout_clear_ret(void)

 {

     struct event_timeout ret;

     event_timeout_clear(&ret);

@@ -68,7 +68,7 @@ static void man_output_standalone(struct management *man, volatile int *signal_r

 static void man_reset_client_socket(struct management *man, const bool exiting);

 static void

-man_help()

+man_help(void)

 {

     msg(M_CLIENT, "Management Interface for %s", title_string);

     msg(M_CLIENT, "Commands:");

@@ -31,7 +31,7 @@

  */

 static inline int

-occ_reset_op()

+occ_reset_op(void)

 {

     return -1;

 }

@@ -643,7 +643,7 @@ packet_id_debug_print(int msglevel,

 #ifdef PID_TEST

 void

-packet_id_interactive_test()

+packet_id_interactive_test(void)

 {

     struct packet_id pid;

     struct packet_id_net pin;

@@ -299,7 +299,7 @@ packet_id_persist_save_obj(struct packet_id_persist *p, const struct packet_id *

 const char *packet_id_net_print(const struct packet_id_net *pin, bool print_timestamp, struct gc_arena *gc);

 #ifdef PID_TEST

-void packet_id_interactive_test();

+void packet_id_interactive_test(void);

 #endif

@@ -356,7 +356,7 @@ cleanup:

 }

 void

-pkcs11_terminate()

+pkcs11_terminate(void)

 {

     dmsg(

         D_PKCS11_DEBUG,

@@ -422,13 +422,13 @@ pkcs11_addProvider(

 }

 int

-pkcs11_logout()

+pkcs11_logout(void)

 {

     return pkcs11h_logout() == CKR_OK;

 }

 int

-pkcs11_management_id_count()

+pkcs11_management_id_count(void)

 {

     pkcs11h_certificate_id_list_t id_list = NULL;

     pkcs11h_certificate_id_list_t t = NULL;

@@ -173,7 +173,7 @@ platform_nice(int niceval)

 /* Get current PID */

 unsigned int

-platform_getpid()

+platform_getpid(void)

 {

 #ifdef _WIN32

     return (unsigned int) GetCurrentProcessId();

@@ -172,7 +172,7 @@ send_control(const socket_descriptor_t fd, int code)

 }

 static int

-cmsg_size()

+cmsg_size(void)

 {

     return CMSG_SPACE(sizeof(socket_descriptor_t));

 }

@@ -347,7 +347,7 @@ tls_init_control_channel_frame_parameters(const struct frame *data_channel_frame

 }

 void

-init_ssl_lib()

+init_ssl_lib(void)

 {

     tls_init_lib();

@@ -355,7 +355,7 @@ init_ssl_lib()

 }

 void

-free_ssl_lib()

+free_ssl_lib(void)

 {

     crypto_uninit_lib();

     prng_uninit();

@@ -88,17 +88,17 @@ int pem_password_callback(char *buf, int size, int rwflag, void *u);

  * Perform any static initialisation necessary by the library.

  * Called on OpenVPN initialisation

  */

-void tls_init_lib();

+void tls_init_lib(void);

 /**

  * Free any global SSL library-specific data structures.

  */

-void tls_free_lib();

+void tls_free_lib(void);

 /**

  * Clear the underlying SSL library's error state.

  */

-void tls_clear_error();

+void tls_clear_error(void);

 /**

  * Parse a TLS version specifier

@@ -63,17 +63,17 @@

 #include <mbedtls/sha256.h>

 void

-tls_init_lib()

+tls_init_lib(void)

 {

 }

 void

-tls_free_lib()

+tls_free_lib(void)

 {

 }

 void

-tls_clear_error()

+tls_clear_error(void)

 {

 }

@@ -69,7 +69,7 @@

 int mydata_index; /* GLOBAL */

 void

-tls_init_lib()

+tls_init_lib(void)

 {

     SSL_library_init();

 #ifndef ENABLE_SMALL

@@ -82,7 +82,7 @@ tls_init_lib()

 }

 void

-tls_free_lib()

+tls_free_lib(void)

 {

     EVP_cleanup();

 #ifndef ENABLE_SMALL

@@ -91,7 +91,7 @@ tls_free_lib()

 }

 void

-tls_clear_error()

+tls_clear_error(void)

 {

     ERR_clear_error();

 }

@@ -1329,7 +1329,7 @@ static time_t biofp_last_open;                 /* GLOBAL */

 static const int biofp_reopen_interval = 600;  /* GLOBAL */

 static void

-close_biofp()

+close_biofp(void)

 {

     if (biofp)

     {

@@ -1339,7 +1339,7 @@ close_biofp()

 }

 static void

-open_biofp()

+open_biofp(void)

 {

     const time_t current = time(NULL);

     const pid_t pid = getpid();

@@ -1775,7 +1775,7 @@ show_available_tls_ciphers(const char *cipher_list)

  * in the OpenSSL library.

  */

 void

-show_available_curves()

+show_available_curves(void)

 {

 #ifndef OPENSSL_NO_EC

     EC_builtin_curve *curves = NULL;

@@ -1235,7 +1235,7 @@ set_win_sys_path_via_env(struct env_set *es)

 const char *

-win_get_tempdir()

+win_get_tempdir(void)

 {

     static char tmpdir[MAX_PATH];

     WCHAR wtmpdir[MAX_PATH];

@@ -1398,7 +1398,7 @@ win_wfp_uninit(const NET_IFINDEX index, const HANDLE msg_channel)

 }

 int

-win32_version_info()

+win32_version_info(void)

 {

     if (!IsWindowsXPOrGreater())

     {

@@ -1426,7 +1426,7 @@ win32_version_info()

 }

 bool

-win32_is_64bit()

+win32_is_64bit(void)

 {

 #if defined(_WIN64)

     return true;  /* 64-bit programs run only on Win64 */

@@ -285,7 +285,7 @@ char *get_win_sys_path(void);

 void fork_to_self(const char *cmdline);

 /* Find temporary directory */

-const char *win_get_tempdir();

+const char *win_get_tempdir(void);

 /* Convert a string from UTF-8 to UCS-2 */

 WCHAR *wide_string(const char *utf8, struct gc_arena *gc);

@@ -299,7 +299,7 @@ bool win_wfp_uninit(const NET_IFINDEX index, const HANDLE msg_channel);

 #define WIN_7 2

 #define WIN_8 3

-int win32_version_info();

+int win32_version_info(void);

 /*

  * String representation of Windows version number and name, see