src: fix strict-prototype warnings

Tested on Fedora 37 with clang 15.

app-layer.c:1055:27: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
void AppLayerSetupCounters()
                          ^
                           void
app-layer.c:1176:29: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
void AppLayerDeSetupCounters()
                            ^
                             void
2 errors generated.

src/app-layer-htp-mem.c

@@ -40,7 +40,7 @@ SC_ATOMIC_DECLARE(uint64_t, htp_config_memcap);
 SC_ATOMIC_DECLARE(uint64_t, htp_memuse);
 SC_ATOMIC_DECLARE(uint64_t, htp_memcap);
 
-void HTPParseMemcap()
+void HTPParseMemcap(void)
 {
     const char *conf_val;
 

src/app-layer.c

@@ -1052,7 +1052,7 @@ void AppLayerRegisterGlobalCounters(void)
 }
 
 #define IPPROTOS_MAX 2
-void AppLayerSetupCounters()
+void AppLayerSetupCounters(void)
 {
     const uint8_t ipprotos[] = { IPPROTO_TCP, IPPROTO_UDP };
     AppProto alprotos[ALPROTO_MAX];
@@ -1173,7 +1173,7 @@ void AppLayerRegisterThreadCounters(ThreadVars *tv)
     }
 }
 
-void AppLayerDeSetupCounters()
+void AppLayerDeSetupCounters(void)
 {
     memset(applayer_counter_names, 0, sizeof(applayer_counter_names));
     memset(applayer_counters, 0, sizeof(applayer_counters));

src/counters.c

@@ -1265,7 +1265,7 @@ uint64_t StatsGetLocalCounterValue(ThreadVars *tv, uint16_t id)
 /**
  * \brief Releases the resources alloted by the Stats API
  */
-void StatsReleaseResources()
+void StatsReleaseResources(void)
 {
     StatsLogSummary();
     StatsReleaseCtx();

src/defrag-queue.c

@@ -38,7 +38,7 @@ DefragTrackerQueue *DefragTrackerQueueInit (DefragTrackerQueue *q)
     return q;
 }
 
-DefragTrackerQueue *DefragTrackerQueueNew()
+DefragTrackerQueue *DefragTrackerQueueNew(void)
 {
     DefragTrackerQueue *q = (DefragTrackerQueue *)SCMalloc(sizeof(DefragTrackerQueue));
     if (q == NULL) {

src/detect-engine-analyzer.c

@@ -431,7 +431,7 @@ void CleanupRuleAnalyzer(void)
  * \retval 1 if successful
  * \retval 0 if on error
  */
-int PerCentEncodingSetup ()
+int PerCentEncodingSetup(void)
 {
 #define DETECT_PERCENT_ENCODING_REGEX "%[0-9|a-f|A-F]{2}"
     int en;

src/detect-engine-loader.c

@@ -504,7 +504,7 @@ void DetectLoadersInit(void)
 /**
  * \brief Unpauses all threads present in tv_root
  */
-void TmThreadWakeupDetectLoaderThreads()
+void TmThreadWakeupDetectLoaderThreads(void)
 {
     ThreadVars *tv = NULL;
     int i = 0;
@@ -528,7 +528,7 @@ void TmThreadWakeupDetectLoaderThreads()
 /**
  * \brief Unpauses all threads present in tv_root
  */
-void TmThreadContinueDetectLoaderThreads()
+void TmThreadContinueDetectLoaderThreads(void)
 {
     ThreadVars *tv = NULL;
     int i = 0;

src/detect-engine-tag.c

@@ -78,7 +78,7 @@ void TagDestroyCtx(void)
 
 /** \brief Reset the tagging engine context
  */
-void TagRestartCtx()
+void TagRestartCtx(void)
 {
     TagDestroyCtx();
     TagInitCtx();

src/detect-engine.c

@@ -4861,7 +4861,7 @@ static int DetectEngineTest09(void)
 
 #endif
 
-void DetectEngineRegisterTests()
+void DetectEngineRegisterTests(void)
 {
 #ifdef UNITTESTS
     UtRegisterTest("DetectEngineTest01", DetectEngineTest01);

src/flow-bypass.c

@@ -181,7 +181,7 @@ int BypassedFlowManagerRegisterUpdateFunc(BypassedUpdateFunc UpdateFunc,
 #endif
 
 /** \brief spawn the flow bypass manager thread */
-void BypassedFlowManagerThreadSpawn()
+void BypassedFlowManagerThreadSpawn(void)
 {
 #ifdef CAPTURE_OFFLOAD_MANAGER
 

src/flow-manager.c

@@ -951,7 +951,7 @@ static TmEcode FlowManager(ThreadVars *th_v, void *thread_data)
 }
 
 /** \brief spawn the flow manager thread */
-void FlowManagerThreadSpawn()
+void FlowManagerThreadSpawn(void)
 {
     intmax_t setting = 1;
     (void)ConfGetInt("flow.managers", &setting);
@@ -1146,7 +1146,7 @@ static bool FlowRecyclerReadyToShutdown(void)
 }
 
 /** \brief spawn the flow recycler thread */
-void FlowRecyclerThreadSpawn()
+void FlowRecyclerThreadSpawn(void)
 {
     intmax_t setting = 1;
     (void)ConfGetInt("flow.recyclers", &setting);

src/flow-queue.c

@@ -32,7 +32,7 @@
 #include "util-debug.h"
 #include "util-print.h"
 
-FlowQueue *FlowQueueNew()
+FlowQueue *FlowQueueNew(void)
 {
     FlowQueue *q = (FlowQueue *)SCMalloc(sizeof(FlowQueue));
     if (q == NULL) {

src/host-queue.c

@@ -39,7 +39,7 @@ HostQueue *HostQueueInit (HostQueue *q)
     return q;
 }
 
-HostQueue *HostQueueNew()
+HostQueue *HostQueueNew(void)
 {
     HostQueue *q = (HostQueue *)SCMalloc(sizeof(HostQueue));
     if (q == NULL) {

src/ippair-queue.c

@@ -39,7 +39,7 @@ IPPairQueue *IPPairQueueInit (IPPairQueue *q)
     return q;
 }
 
-IPPairQueue *IPPairQueueNew()
+IPPairQueue *IPPairQueueNew(void)
 {
     IPPairQueue *q = (IPPairQueue *)SCMalloc(sizeof(IPPairQueue));
     if (q == NULL) {

src/log-cf-common.c

@@ -36,7 +36,7 @@
  *  \retval LogCustomFormatNode * ptr if created
  *  \retval NULL if failed to allocate
  */
-LogCustomFormatNode * LogCustomFormatNodeAlloc()
+LogCustomFormatNode *LogCustomFormatNodeAlloc(void)
 {
     LogCustomFormatNode * node = SCCalloc(1, sizeof(LogCustomFormatNode));
     if (unlikely(node == NULL)) {
@@ -51,7 +51,7 @@ LogCustomFormatNode * LogCustomFormatNodeAlloc()
  *  \retval LogCustomFormat * ptr if created
  *  \retval NULL if failed to allocate
  */
-LogCustomFormat * LogCustomFormatAlloc()
+LogCustomFormat *LogCustomFormatAlloc(void)
 {
     LogCustomFormat * cf = SCCalloc(1, sizeof(LogCustomFormat));
     if (unlikely(cf == NULL)) {

src/runmode-af-packet.c

@@ -676,7 +676,7 @@ static int AFPConfigGeThreadsCount(void *conf)
     return afp->threads;
 }
 
-int AFPRunModeIsIPS()
+int AFPRunModeIsIPS(void)
 {
     int nlive = LiveGetDeviceCount();
     int ldev;

src/runmode-dpdk.c

@@ -252,7 +252,7 @@ static void ArgumentsAddOptionAndArgument(struct Arguments *args, const char *op
     SCReturn;
 }
 
-static void InitEal()
+static void InitEal(void)
 {
     SCEnter();
     int retval;

src/runmode-netmap.c

@@ -320,7 +320,7 @@ static int NetmapConfigGeThreadsCount(void *conf)
     return aconf->in.threads;
 }
 
-int NetmapRunModeIsIPS()
+int NetmapRunModeIsIPS(void)
 {
     int nlive = LiveGetDeviceCount();
     int ldev;

src/source-af-packet.c

@@ -446,7 +446,7 @@ AFPPeersList peerslist;
 /**
  * \brief Init the global list of ::AFPPeer
  */
-TmEcode AFPPeersListInit()
+TmEcode AFPPeersListInit(void)
 {
     SCEnter();
     TAILQ_INIT(&peerslist.peers);
@@ -463,7 +463,7 @@ TmEcode AFPPeersListInit()
  *
  * \retval TM_ECODE_FAILED if some threads are not peered or TM_ECODE_OK else.
  */
-TmEcode AFPPeersListCheck()
+TmEcode AFPPeersListCheck(void)
 {
 #define AFP_PEERS_MAX_TRY 4
 #define AFP_PEERS_WAIT 20000
@@ -574,7 +574,7 @@ static int AFPPeersListStarted(void)
 /**
  * \brief Clean the global peers list.
  */
-void AFPPeersListClean()
+void AFPPeersListClean(void)
 {
     AFPPeer *pitem;
 

src/source-dpdk.c

@@ -184,7 +184,7 @@ static void DPDKSetTimevalReal(struct timeval *machine_start_tv, struct timeval
 }
 
 /* get number of seconds from the reset of TSC counter (typically from the machine start) */
-static uint64_t DPDKGetSeconds()
+static uint64_t DPDKGetSeconds(void)
 {
     return CyclesToSeconds(rte_get_tsc_cycles());
 }

src/source-nfq.c

@@ -1268,7 +1268,7 @@ TmEcode DecodeNFQThreadDeinit(ThreadVars *tv, void *data)
 /**
  * \brief Clean global contexts. Must be called on exit.
  */
-void NFQContextsClean()
+void NFQContextsClean(void)
 {
     if (g_nfq_q != NULL) {
         SCFree(g_nfq_q);

src/source-pcap-file.c

@@ -135,7 +135,7 @@ void TmModuleDecodePcapFileRegister (void)
     tmm_modules[TMM_DECODEPCAPFILE].flags = TM_FLAG_DECODE_TM;
 }
 
-void PcapFileGlobalInit()
+void PcapFileGlobalInit(void)
 {
     memset(&pcap_g, 0x00, sizeof(pcap_g));
     SC_ATOMIC_INIT(pcap_g.invalid_checksums);
@@ -452,7 +452,7 @@ TmEcode DecodePcapFileThreadDeinit(ThreadVars *tv, void *data)
     SCReturnInt(TM_ECODE_OK);
 }
 
-void PcapIncreaseInvalidChecksum()
+void PcapIncreaseInvalidChecksum(void)
 {
     (void) SC_ATOMIC_ADD(pcap_g.invalid_checksums, 1);
 }

src/source-windivert.c

@@ -993,7 +993,7 @@ static int SourceWinDivertTestIfaceMatchFilter(void)
 /**
  * \brief this function registers unit tests for the WinDivert Source
  */
-void SourceWinDivertRegisterTests()
+void SourceWinDivertRegisterTests(void)
 {
 #ifdef UNITTESTS
     UtRegisterTest("SourceWinDivertTestIfaceMatchFilter",

src/stream-tcp-reassemble.c

@@ -195,7 +195,7 @@ int StreamTcpReassembleSetMemcap(uint64_t size)
  *
  *  \return memcap memcap value
  */
-uint64_t StreamTcpReassembleGetMemcap()
+uint64_t StreamTcpReassembleGetMemcap(void)
 {
     uint64_t memcapcopy = SC_ATOMIC_GET(stream_config.reassembly_memcap);
     return memcapcopy;

src/tm-threads.c

@@ -1885,7 +1885,7 @@ again:
 /**
  * \brief Unpauses all threads present in tv_root
  */
-void TmThreadContinueThreads()
+void TmThreadContinueThreads(void)
 {
     SCMutexLock(&tv_root_lock);
     for (int i = 0; i < TVT_MAX; i++) {
@@ -2251,7 +2251,7 @@ void TmThreadsGetMinimalTimestamp(struct timeval *ts)
     SCLogDebug("ts->tv_sec %"PRIuMAX, (uintmax_t)ts->tv_sec);
 }
 
-uint16_t TmThreadsGetWorkerThreadMax()
+uint16_t TmThreadsGetWorkerThreadMax(void)
 {
     uint16_t ncpus = UtilCpuGetNumProcessorsOnline();
     int thread_max = TmThreadGetNbThreads(WORKER_CPU_SET);

src/util-action.c

@@ -95,7 +95,7 @@ static uint8_t ActionAsciiToFlag(const char *action)
  *
  * \retval 0 on success; -1 on fatal error;
  */
-int ActionInitConfig()
+int ActionInitConfig(void)
 {
     uint8_t actions_used = 0;
     uint8_t action_flag = 0;

src/util-affinity.c

@@ -162,7 +162,7 @@ static void BuildCpuset(const char *name, ConfNode *node, cpu_set_t *cpu)
  * \brief Extract cpu affinity configuration from current config file
  */
 
-void AffinitySetupLoadFromConfig()
+void AffinitySetupLoadFromConfig(void)
 {
 #if !defined __CYGWIN__ && !defined OS_WIN32 && !defined __OpenBSD__ && !defined sun
     ConfNode *root = ConfGetNode("threading.cpu-affinity");

src/util-conf.c

@@ -34,7 +34,7 @@ TmEcode ConfigSetLogDirectory(const char *name)
     return ConfSetFinal("default-log-dir", name) ? TM_ECODE_OK : TM_ECODE_FAILED;
 }
 
-const char *ConfigGetLogDirectory()
+const char *ConfigGetLogDirectory(void)
 {
     const char *log_dir = NULL;
 
@@ -81,7 +81,7 @@ TmEcode ConfigSetDataDirectory(char *name)
     return ConfSetFinal("default-data-dir", tmp) ? TM_ECODE_OK : TM_ECODE_FAILED;
 }
 
-const char *ConfigGetDataDirectory()
+const char *ConfigGetDataDirectory(void)
 {
     const char *data_dir = NULL;
 

src/util-debug-filters.c

@@ -408,7 +408,7 @@ void SCLogReleaseFGFilters(void)
  *
  * \retval count The no of FG filters
  */
-int SCLogPrintFGFilters()
+int SCLogPrintFGFilters(void)
 {
     SCLogFGFilterFile *fgf_file = NULL;
     SCLogFGFilterFunc *fgf_func = NULL;

src/util-debug.c

@@ -1818,7 +1818,7 @@ static int SCLogTestInit05(void)
 
 #endif /* UNITTESTS */
 
-void SCLogRegisterTests()
+void SCLogRegisterTests(void)
 {
 
 #ifdef UNITTESTS

src/util-device.c

@@ -346,12 +346,12 @@ int LiveBuildDeviceListCustom(const char *runmode, const char *itemname)
  *
  * This can be useful in the case, this is not a real interface.
  */
-void LiveDeviceHasNoStats()
+void LiveDeviceHasNoStats(void)
 {
     live_devices_stats = 0;
 }
 
-int LiveDeviceListClean()
+int LiveDeviceListClean(void)
 {
     SCEnter();
     LiveDevice *pd, *tpd;

src/util-hash-lookup3.c

@@ -940,7 +940,7 @@ uint32_t hashbig( const void *key, size_t length, uint32_t initval)
 #ifdef SELF_TEST
 
 /* used for timings */
-void driver1()
+void driver1(void)
 {
   uint8_t buf[256];
   uint32_t i;
@@ -962,7 +962,7 @@ void driver1()
 #define HASHLEN   1
 #define MAXPAIR 60
 #define MAXLEN  70
-void driver2()
+void driver2(void)
 {
   uint8_t qa[MAXLEN+1], qb[MAXLEN+2], *a = &qa[0], *b = &qb[1];
   uint32_t c[HASHSTATE], d[HASHSTATE], i=0, j=0, k, l, m=0, z;
@@ -1032,7 +1032,7 @@ void driver2()
 }
 
 /* Check for reading beyond the end of the buffer and alignment problems */
-void driver3()
+void driver3(void)
 {
   uint8_t buf[MAXLEN+20], *b;
   uint32_t len;
@@ -1123,7 +1123,7 @@ void driver3()
 }
 
 /* check for problems with nulls */
- void driver4()
+void driver4(void)
 {
   uint8_t buf[1];
   uint32_t h,i,state[HASHSTATE];
@@ -1139,7 +1139,7 @@ void driver3()
   }
 }
 
-void driver5()
+void driver5(void)
 {
   uint32_t b,c;
   b=0, c=0, hashlittle2("", 0, &c, &b);
@@ -1160,8 +1160,7 @@ void driver5()
   printf("hash is %.8lx\n", c);   /* cd628161 */
 }
 
-
-int main()
+int main(void)
 {
   driver1();   /* test that the key is hashed: used for timings */
   driver2();   /* test that whole key is hashed thoroughly */

src/util-log-redis.c

@@ -47,7 +47,7 @@ static void SCLogFileCloseRedis(LogFileCtx *log_ctx);
 /**
  * \brief SCLogRedisInit() - Initializes global stuff before threads
  */
-void SCLogRedisInit()
+void SCLogRedisInit(void)
 {
 #ifdef HAVE_LIBEVENT_PTHREADS
     evthread_use_pthreads();

src/util-profiling-locks.c

@@ -95,7 +95,7 @@ static void LockRecordFree(void *data)
     SCFree(fn);
 }
 
-int LockRecordInitHash()
+int LockRecordInitHash(void)
 {
     pthread_mutex_init(&lock_records_mutex, NULL);
     pthread_mutex_lock(&lock_records_mutex);
@@ -219,7 +219,7 @@ static void SCProfilingListLocks(void)
     fclose(fp);
 }
 
-void LockRecordFreeHash()
+void LockRecordFreeHash(void)
 {
     if (profiling_locks_enabled == 0)
         return;

src/win32-syscall.c

@@ -314,7 +314,7 @@ release:
 /**
  * \brief get the maximum transmissible unit for all devices on the system
  */
-int GetGlobalMTUWin32()
+int GetGlobalMTUWin32(void)
 {
     uint32_t mtu = 0;
 
@@ -1653,7 +1653,7 @@ static int Win32TestStripPcapPrefix(void)
 }
 #endif /* UNITTESTS */
 
-void Win32SyscallRegisterTests()
+void Win32SyscallRegisterTests(void)
 {
 #ifdef UNITTESTS
     UtRegisterTest("Win32TestStripPcapPrefix", Win32TestStripPcapPrefix);