use foo(void) instead of foo() in prototypes

In C, the latter isn't a prototype for a function with no arg,
but declares a function with an undefined number of args.

[picked from master with changes since no main_channel, spice_common,
 and a bunch of functions aren't there yet]

common/gdi_canvas.c

@@ -1828,7 +1828,7 @@ SpiceCanvas *gdi_canvas_create(int width, int height,
     return (SpiceCanvas *)canvas;
 }
 
-void gdi_canvas_init() //unsafe global function
+void gdi_canvas_init(void) //unsafe global function
 {
     if (!need_init) {
         return;

common/gdi_canvas.h

@@ -38,7 +38,7 @@ SpiceCanvas *gdi_canvas_create(int width, int height,
                                SpiceJpegDecoder *jpeg_decoder,
                                SpiceZlibDecoder *zlib_decoder);
 
-void gdi_canvas_init();
+void gdi_canvas_init(void);
 
 #ifdef __cplusplus
 }

common/gl_canvas.c

@@ -870,7 +870,7 @@ static void gl_canvas_destroy(SpiceCanvas *spice_canvas)
     free(canvas);
 }
 
-void gl_canvas_init() //unsafe global function
+void gl_canvas_init(void) //unsafe global function
 {
     if (!need_init) {
         return;

common/gl_canvas.h

@@ -40,7 +40,7 @@ SpiceCanvas *gl_canvas_create(int width, int height, uint32_t format
                            , SpiceZlibDecoder *zlib_decoder
                            );
 void gl_canvas_set_textures_lost(SpiceCanvas *canvas, int textures_lost);
-void gl_canvas_init();
+void gl_canvas_init(void);
 
 #ifdef __cplusplus
 }

common/quic.c

@@ -1690,7 +1690,7 @@ void quic_destroy(QuicContext *quic)
     encoder->usr->free(encoder->usr, encoder);
 }
 
-void quic_init()
+void quic_init(void)
 {
     if (!need_init) {
         return;

common/quic.h

@@ -63,7 +63,7 @@ int quic_decode(QuicContext *quic, QuicImageType type, uint8_t *buf, int stride)
 QuicContext *quic_create(QuicUsrContext *usr);
 void quic_destroy(QuicContext *quic);
 
-void quic_init();
+void quic_init(void);
 
 #ifdef __cplusplus
 }

common/rop3.c

@@ -381,7 +381,7 @@ ROP3_HANDLERS(DPSoo, *src | *pat | *dest, 0xfe);
     rop3_test_handlers_32[index] = rop3_test32_##op;             \
     rop3_test_handlers_16[index] = rop3_test16_##op;
 
-void rop3_init()
+void rop3_init(void)
 {
     static int need_init = 1;
     int i;

common/rop3.h

@@ -33,7 +33,7 @@ void do_rop3_with_pattern(uint8_t rop3, pixman_image_t *d, pixman_image_t *s, Sp
 void do_rop3_with_color(uint8_t rop3, pixman_image_t *d, pixman_image_t *s, SpicePoint *src_pos,
                         uint32_t rgb);
 
-void rop3_init();
+void rop3_init(void);
 
 #ifdef __cplusplus
 }

common/sw_canvas.c

@@ -1276,7 +1276,7 @@ SpiceCanvas *canvas_create_for_data(int width, int height, uint32_t format,
                                 );
 }
 
-void sw_canvas_init() //unsafe global function
+void sw_canvas_init(void) //unsafe global function
 {
     if (!need_init) {
         return;

common/sw_canvas.h

@@ -57,7 +57,7 @@ SpiceCanvas *canvas_create_for_data(int width, int height, uint32_t format, uint
                            );
 
 
-void sw_canvas_init();
+void sw_canvas_init(void);
 
 #ifdef __cplusplus
 }

server/red_dispatcher.c

@@ -170,12 +170,12 @@ int red_dispatcher_add_renderer(const char *name)
     return TRUE;
 }
 
-int red_dispatcher_qxl_count()
+int red_dispatcher_qxl_count(void)
 {
     return num_active_workers;
 }
 
-static void update_client_mouse_allowed()
+static void update_client_mouse_allowed(void)
 {
     static int allowed = FALSE;
     int allow_now = FALSE;
@@ -474,7 +474,7 @@ void red_dispatcher_set_mm_time(uint32_t mm_time)
     }
 }
 
-static inline int calc_compression_level()
+static inline int calc_compression_level(void)
 {
     ASSERT(streaming_video != STREAM_VIDEO_INVALID);
     if ((streaming_video != STREAM_VIDEO_OFF) ||
@@ -485,7 +485,7 @@ static inline int calc_compression_level()
     }
 }
 
-void red_dispatcher_on_ic_change()
+void red_dispatcher_on_ic_change(void)
 {
     int compression_level = calc_compression_level();
     RedDispatcher *now = dispatchers;
@@ -498,7 +498,7 @@ void red_dispatcher_on_ic_change()
     }
 }
 
-void red_dispatcher_on_sv_change()
+void red_dispatcher_on_sv_change(void)
 {
     int compression_level = calc_compression_level();
     RedDispatcher *now = dispatchers;
@@ -522,7 +522,7 @@ void red_dispatcher_set_mouse_mode(uint32_t mode)
     }
 }
 
-int red_dispatcher_count()
+int red_dispatcher_count(void)
 {
     RedDispatcher *now = dispatchers;
     int ret = 0;
@@ -534,7 +534,7 @@ int red_dispatcher_count()
     return ret;
 }
 
-uint32_t red_dispatcher_qxl_ram_size()
+uint32_t red_dispatcher_qxl_ram_size(void)
 {
     QXLDevInitInfo qxl_info;
     if (!dispatchers) {

server/red_dispatcher.h

@@ -22,12 +22,12 @@
 struct RedDispatcher *red_dispatcher_init(QXLInstance *qxl);
 
 void red_dispatcher_set_mm_time(uint32_t);
-void red_dispatcher_on_ic_change();
-void red_dispatcher_on_sv_change();
+void red_dispatcher_on_ic_change(void);
+void red_dispatcher_on_sv_change(void);
 void red_dispatcher_set_mouse_mode(uint32_t mode);
-int red_dispatcher_count();
+int red_dispatcher_count(void);
 int red_dispatcher_add_renderer(const char *name);
-uint32_t red_dispatcher_qxl_ram_size();
-int red_dispatcher_qxl_count();
+uint32_t red_dispatcher_qxl_ram_size(void);
+int red_dispatcher_qxl_count(void);
 #endif
 

server/reds.c

@@ -4100,7 +4100,7 @@ static void key_modifiers_sender(void *opaque)
     reds_send_keyboard_modifiers(kbd_get_leds(keyboard));
 }
 
-uint32_t reds_get_mm_time()
+uint32_t reds_get_mm_time(void)
 {
     struct timespec time_space;
     clock_gettime(CLOCK_MONOTONIC, &time_space);
@@ -4112,7 +4112,7 @@ void reds_update_mm_timer(uint32_t mm_time)
     red_dispatcher_set_mm_time(mm_time);
 }
 
-void reds_enable_mm_timer()
+void reds_enable_mm_timer(void)
 {
     SpiceMsgMainMultiMediaTime time_mes;
     RedsOutItem *item;
@@ -4128,7 +4128,7 @@ void reds_enable_mm_timer()
     reds_push_pipe_item(item);
 }
 
-void reds_desable_mm_timer()
+void reds_desable_mm_timer(void)
 {
     core->timer_cancel(reds->mm_timer);
 }

server/reds.h

@@ -126,10 +126,10 @@ ssize_t reds_stream_write(RedsStream *s, const void *buf, size_t nbyte);
 ssize_t reds_stream_writev(RedsStream *s, const struct iovec *iov, int iovcnt);
 void reds_stream_free(RedsStream *s);
 
-void reds_desable_mm_timer();
-void reds_enable_mm_timer();
+void reds_desable_mm_timer(void);
+void reds_enable_mm_timer(void);
 void reds_update_mm_timer(uint32_t mm_time);
-uint32_t reds_get_mm_time();
+uint32_t reds_get_mm_time(void);
 void reds_set_client_mouse_allowed(int is_client_mouse_allowed,
                                    int x_res, int y_res);
 void reds_register_channel(Channel *channel);

server/smartcard.h

@@ -29,7 +29,7 @@
 int smartcard_device_connect(SpiceCharDeviceInstance *char_device);
 void smartcard_device_disconnect(SpiceCharDeviceInstance *char_device);
 
-void smartcard_channel_init();
+void smartcard_channel_init(void);
 
 #endif // __SMART_CARD_H__
 

server/snd_worker.c

@@ -1271,7 +1271,7 @@ void snd_set_playback_compression(int on)
     }
 }
 
-int snd_get_playback_compression()
+int snd_get_playback_compression(void)
 {
     return (playback_compression == SPICE_AUDIO_DATA_MODE_RAW) ? FALSE : TRUE;
 }

server/snd_worker.h

@@ -27,7 +27,7 @@ void snd_attach_record(SpiceRecordInstance *sin);
 void snd_detach_record(SpiceRecordInstance *sin);
 
 void snd_set_playback_compression(int on);
-int snd_get_playback_compression();
+int snd_get_playback_compression(void);
 
 #endif