ppp: Use valid prototypes for function declarations with no arguments.

Reviewed by:	emaste
Differential Revision:	https://reviews.freebsd.org/D39730

usr.sbin/ppp/bundle.c

@@ -1354,7 +1354,7 @@ bundle_GetLabel(struct bundle *bundle)
 }
 
 int
-bundle_LinkSize()
+bundle_LinkSize(void)
 {
   struct iovec iov[SCATTER_SEGMENTS];
   int niov, expect, f;

usr.sbin/ppp/defs.c

@@ -384,7 +384,7 @@ SetTitle(const char *title)
 }
 
 fd_set *
-mkfdset()
+mkfdset(void)
 {
   return (fd_set *)malloc(howmany(getdtablesize(), NFDBITS) * sizeof (fd_mask));
 }

usr.sbin/ppp/id.c

@@ -61,7 +61,7 @@ static int uid;
 static int euid;
 
 void
-ID0init()
+ID0init(void)
 {
   uid = getuid();
   euid = geteuid();
@@ -77,7 +77,7 @@ ID0setuser(void)
 }
 
 uid_t
-ID0realuid()
+ID0realuid(void)
 {
   return uid;
 }

usr.sbin/ppp/log.c

@@ -83,7 +83,7 @@ struct prompt *log_PromptContext;
 int log_PromptListChanged;
 
 struct prompt *
-log_PromptList()
+log_PromptList(void)
 {
   return promptlist;
 }
@@ -163,7 +163,7 @@ log_DestroyPrompts(struct server *s)
 }
 
 void
-log_DisplayPrompts()
+log_DisplayPrompts(void)
 {
   struct prompt *p;
 
@@ -254,7 +254,7 @@ log_DiscardLocal(int id, u_long *mask)
 }
 
 void
-log_DiscardAll()
+log_DiscardAll(void)
 {
   LogMask = 0;
 }
@@ -306,7 +306,7 @@ log_SetTun(int tunno, const char *ifaceName)
 }
 
 void
-log_Close()
+log_Close(void)
 {
   closelog();
   LogTunno = -1;

usr.sbin/ppp/main.c

@@ -112,7 +112,7 @@ static struct prompt *SignalPrompt;
 struct libalias *la;
 
 void
-Cleanup()
+Cleanup(void)
 {
   SignalBundle->CleaningUp = 1;
   bundle_Close(SignalBundle, NULL, CLOSE_STAYDOWN);

usr.sbin/ppp/physical.c

@@ -646,7 +646,7 @@ iov2physical(struct datalink *dl, struct iovec *iov, int *niov, int maxiov,
 }
 
 unsigned
-physical_MaxDeviceSize()
+physical_MaxDeviceSize(void)
 {
   unsigned biggest, sz, n;
 

usr.sbin/ppp/probe.c

@@ -67,7 +67,7 @@ ipv6_available(void)
 #endif
 
 void
-probe_Init()
+probe_Init(void)
 {
   probe.select_changes_time = select_changes_time() ? 1 : 0;
   log_Printf(LogDEBUG, "Select changes time: %s\n",

usr.sbin/ppp/sig.c

@@ -94,7 +94,7 @@ sig_signal(int sig, sig_type fn)
  * select() returned due to a signal being recorded by signal_recorder().
  */
 int
-sig_Handle()
+sig_Handle(void)
 {
   int sig;
   int got;