From af89f36fbeb5f6a078b349eed8fc4ad6fbfdf5d1 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Mon, 16 Jan 2023 15:26:12 -0800
Subject: [PATCH] Drop using register keyword

Its gone since c++17

Fixes
error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
|         register char c;
|         ^~~~~~~~~

Upstream-Status: Pending
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 telnet/commands.cc     |  14 +++++++-------
 telnet/defines.h       |   1 +
 telnet/sys_bsd.cc      |   2 +-
 telnet/telnet.cc       |  18 +++++++++---------
 telnet/terminal.cc     |   4 ++--
 telnet/tn3270.cc       |   4 ++--
 telnet/tn3270.o        | Bin 4008 -> 4008 bytes
 telnet/utilities.cc    |   6 +++---
 telnetd/setproctitle.c |   6 +++---
 telnetd/slc.c          |   4 ++--
 telnetd/state.c        |  12 ++++++------
 telnetd/sys_term.c     |   4 ++--
 telnetd/telnetd.c      |   4 ++--
 telnetd/termstat.c     |   4 ++--
 telnetd/utility.c      |  16 ++++++++--------
 15 files changed, 50 insertions(+), 49 deletions(-)

--- a/telnet/commands.cc
+++ b/telnet/commands.cc
@@ -192,8 +192,8 @@ static int margc;
 static const char *margv[20];
 
 static void makeargv(void) {
-    register char *cp, *cp2, c;
-    register const char **argp = margv;
+    char *cp, *cp2, c;
+    const char **argp = margv;
 
     margc = 0;
     cp = line;
@@ -204,7 +204,7 @@ static void makeargv(void) {
 	cp++;
     }
     while ((c = *cp)!=0) {
-	register int inquote = 0;
+	int inquote = 0;
 	while (isspace(c))
 	    c = *++cp;
 	if (c == '\0')
@@ -281,7 +281,7 @@ static const char *control(cc_t c)
 	 * was to assign "c" to an unsigned int variable...
 	 * Arggg....
 	 */
-	register unsigned int uic = (unsigned int)c;
+	unsigned int uic = (unsigned int)c;
 
 	if (uic == 0x7f)
 		return ("^?");
@@ -479,7 +479,7 @@ int send_tncmd(int (*func)(int, int), co
     long opt;
 
     if (isprefix(name, "help") || isprefix(name, "?")) {
-	register int col, len;
+	int col, len;
 
 	printf("Usage: send %s <option>\n", cmd);
 	printf("Valid options are:\n\t");
@@ -2212,8 +2212,8 @@ static unsigned long sourceroute(char *a
 	static char lsr[44];
 	char *cp, *cp2, *lsrp, *lsrep;
 	struct in_addr sin_addr;
-	register struct hostent *host = 0;
-	register char c;
+	struct hostent *host = 0;
+	char c;
 
 	/*
 	 * Verify the arguments, and make sure we have
--- a/telnet/defines.h
+++ b/telnet/defines.h
@@ -52,3 +52,4 @@
 #define	CONTROL(x)	((x)&0x1f)		/* CTRL(x) is not portable */
 
 #define MODE_OUT8	0x8000			/* binary mode sans -opost */
+
--- a/telnet/sys_bsd.cc
+++ b/telnet/sys_bsd.cc
@@ -285,7 +285,7 @@ void sys_telnet_init(void) {
 int process_rings(int netin, int netout, int netex, int ttyin, int ttyout, 
 		  int poll /* If 0, then block until something to do */)
 {
-    register int c, maxfd;
+    int c, maxfd;
 		/* One wants to be a bit careful about setting returnValue
 		 * to one, since a one implies we did some useful work,
 		 * and therefore probably won't be called to block next
--- a/telnet/telnet.cc
+++ b/telnet/telnet.cc
@@ -864,7 +864,7 @@ struct spc {
 static int slc_mode = SLC_EXPORT;
 
 void slc_init(void) {
-  register struct spc *spcp;
+  struct spc *spcp;
   
   localchars = 1;
   for (spcp = spc_data; spcp < &spc_data[NSLC+1]; spcp++) {
@@ -944,7 +944,7 @@ void slc_import(int def) {
 }
 
 void slc_export(void) {
-  register struct spc *spcp;
+  struct spc *spcp;
   
   TerminalDefaultChars();
   
@@ -966,8 +966,8 @@ void slc_export(void) {
 }
 
 void slc(unsigned char *cp, int len) {
-  register struct spc *spcp;
-  register int func,level;
+  struct spc *spcp;
+  int func,level;
   
   slc_start_reply();
   
@@ -1032,7 +1032,7 @@ void slc(unsigned char *cp, int len) {
 }
 
 void slc_check(void) {
-  register struct spc *spcp;
+  struct spc *spcp;
   
   slc_start_reply();
   for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) {
@@ -1080,7 +1080,7 @@ void slc_add_reply(int func, int flags,
 }
 
 void slc_end_reply(void) {
-  register int len;
+  int len;
   
   *slc_replyp++ = IAC;
   *slc_replyp++ = SE;
@@ -1200,7 +1200,7 @@ void env_opt_add(const char *ep) {
   tp = opt_replyp + (vp ? strlen(vp) * 2 : 0) + strlen(ep) * 2 + 6;
   if (tp > opt_replyend)
     {
-      register int len;
+      int len;
       len = ((tp - opt_reply) + OPT_REPLY_SIZE - 1) & ~(OPT_REPLY_SIZE - 1);
       opt_replyend = opt_reply + len;
       opt_reply = (unsigned char *)realloc(opt_reply, len);
@@ -1236,7 +1236,7 @@ void env_opt_add(const char *ep) {
 }
 
 void env_opt_end(int emptyok) {
-  register int len;
+  int len;
   
   len = opt_replyp - opt_reply + 2;
   if (emptyok || len > 6) {
@@ -1874,7 +1874,7 @@ static unsigned char *nextitem(unsigned
 
 static void netclear(void) {
 #if	0	/* XXX */
-  register char *thisitem, *next;
+  char *thisitem, *next;
   char *good;
 #define	wewant(p)	((nfrontp > p) && (*p == IAC) && \
 			 (p[1] != EC) && (p[1] != EL))
--- a/telnet/terminal.cc
+++ b/telnet/terminal.cc
@@ -569,8 +569,8 @@ struct termspeeds {
 };
 
 void TerminalSpeeds(long *ispeed, long *ospeed) {
-    register struct termspeeds *tp;
-    register long in, out;
+    struct termspeeds *tp;
+    long in, out;
 
     out = cfgetospeed(&old_tc);
     in = cfgetispeed(&old_tc);
--- a/telnet/tn3270.cc
+++ b/telnet/tn3270.cc
@@ -103,7 +103,7 @@ void init_3270(void) {
  * done:	is this the last of a logical block
  */
 int DataToNetwork(char *buffer, int count, int done) {
-    register int loop, c;
+    int loop, c;
     int origCount;
     
     origCount = count;
@@ -179,7 +179,7 @@ void outputPurge(void) {
  * count:	how much to send
  */
 int DataToTerminal(char *buffer, int count) {
-    register int c;
+    int c;
     int origCount;
 
     origCount = count;
--- a/telnet/utilities.cc
+++ b/telnet/utilities.cc
@@ -252,7 +252,7 @@ void optionstatus(void) {
 /* pointer: where suboption data sits */
 /* length: length of suboption data */
 void printsub(int direction, unsigned char *pointer, int length) {
-    register int i = 0;
+    int i = 0;
 
     extern int want_status_response;
 
@@ -262,7 +262,7 @@ void printsub(int direction, unsigned ch
 	    fprintf(NetTrace, "%s IAC SB ",
 				(direction == '<')? "RCVD":"SENT");
 	    if (length >= 3) {
-		register int j;
+		int j;
 
 		i = pointer[length-2];
 		j = pointer[length-1];
@@ -577,7 +577,7 @@ void printsub(int direction, unsigned ch
 		fprintf(NetTrace, "INFO ");
 	    env_common:
 		{
-		    register int noquote = 2;
+		    int noquote = 2;
 		    for (i = 2; i < length; i++ ) {
 			switch (pointer[i]) {
 			case ENV_VAR:
--- a/telnetd/setproctitle.c
+++ b/telnetd/setproctitle.c
@@ -76,7 +76,7 @@ static char Argv0[128];			/* program nam
 void
 initsetproctitle(int argc, char **argv, char **envp)
 {
-	register int i;
+	int i;
 	char *tmp;
 
 	/*
@@ -111,8 +111,8 @@ initsetproctitle(int argc, char **argv,
 void
 setproctitle(const char *fmt, ...)
 {
-	register char *p;
-	register int i=0;
+	char *p;
+	int i=0;
 	static char buf[2048];
 	va_list ap;
 
--- a/telnetd/slc.c
+++ b/telnetd/slc.c
@@ -196,7 +196,7 @@ int end_slc(unsigned char **bufp) {
  * Figure out what to do about the client's slc
  */
 void process_slc(unsigned char func, unsigned char flag, cc_t val) {
-    register int hislevel, mylevel, ack;
+    int hislevel, mylevel, ack;
 
     /*
      * Ensure that we know something about this function
@@ -260,7 +260,7 @@ void process_slc(unsigned char func, uns
  * Compare client's request with what we are capable of supporting.
  */
 void change_slc(char func, char flag, cc_t val) {
-    register int hislevel, mylevel;
+    int hislevel, mylevel;
     
     hislevel = flag & SLC_LEVELBITS;
     mylevel = slctab[func].defset.flag & SLC_LEVELBITS;
--- a/telnetd/state.c
+++ b/telnetd/state.c
@@ -79,7 +79,7 @@ unsigned char subbuffer[512], *subpointe
 #define	TS_DONT		8	/* dont " */
 
 void telrcv(void) {
-    register int c;
+    int c;
     static int state = TS_DATA;
 
     while (ncc > 0) {
@@ -1081,7 +1081,7 @@ void suboption(void) {
 
 #ifdef	LINEMODE
     case TELOPT_LINEMODE: {
-	register int request;
+	int request;
 
 	if (his_state_is_wont(TELOPT_LINEMODE))	/* Ignore if option disabled */
 		break;
@@ -1158,8 +1158,8 @@ void suboption(void) {
     }  /* end of case TELOPT_XDISPLOC */
 
     case TELOPT_ENVIRON: {
-	register int c;
-	register char *cp, *varp, *valp;
+	int c;
+	char *cp, *varp, *valp;
 
 	if (SB_EOF())
 		return;
@@ -1299,8 +1299,8 @@ static void doclientstat(void) {
 
 void send_status(void) {
     unsigned char statusbuf[256];
-    register unsigned char *ncp;
-    register unsigned char i;
+    unsigned char *ncp;
+    unsigned char i;
     
     ncp = statusbuf;
     
--- a/telnetd/sys_term.c
+++ b/telnetd/sys_term.c
@@ -413,7 +413,7 @@ extern int def_tspeed, def_rspeed;
 
 static int getptyslave(void) {
 #if 0
-    register int t = -1;
+    int t = -1;
 
 # ifdef	LINEMODE
     int waslm;
@@ -505,7 +505,7 @@ static int getptyslave(void) {
  * making sure that we have a clean tty.
  */
 static int cleanopen(char *lyne) {
-    register int t;
+    int t;
 
     /*
      * Make sure that other people can't open the
--- a/telnetd/telnetd.c
+++ b/telnetd/telnetd.c
@@ -93,7 +93,7 @@ main(int argc, char *argv[], char *env[]
 	struct sockaddr_in from;
 	int on = 1;
 	socklen_t fromlen;
-	register int ch;
+	int ch;
 
 #if	defined(HAS_IPPROTO_IP) && defined(IP_TOS)
 	int tos = -1;
@@ -837,7 +837,7 @@ void telnet(int f, int p)
     
 #ifdef TIOCNOTTY
     {
-	register int t;
+	int t;
 	t = open(_PATH_TTY, O_RDWR);
 	if (t >= 0) {
 	    (void) ioctl(t, TIOCNOTTY, (char *)0);
--- a/telnetd/termstat.c
+++ b/telnetd/termstat.c
@@ -347,7 +347,7 @@ done:
  * at a time, and if using kludge linemode, then only linemode may be
  * affected.
  */
-void clientstat(register int code, register int parm1, register int parm2)
+void clientstat(int code, register int parm1, register int parm2)
 {
 	/*
 	 * Get a copy of terminal characteristics.
@@ -419,7 +419,7 @@ void clientstat(register int code, regis
 	
 	case LM_MODE:
 	    {
-		register int ack, changed;
+		int ack, changed;
 
 		/*
 		 * Client has sent along a mode mask.  If it agrees with
--- a/telnetd/utility.c
+++ b/telnetd/utility.c
@@ -189,7 +189,7 @@ nextitem(char *current, const char *endp
 	return current+3 <= endp ? current+3 : NULL;
     case SB:		/* loop forever looking for the SE */
 	{
-	    register char *look = current+2;
+	    char *look = current+2;
 
 	    while (look < endp) {
 		if ((*look++&0xff) == IAC) {
@@ -224,7 +224,7 @@ nextitem(char *current, const char *endp
  */
 void netclear(void)
 {
-    register char *thisitem, *next;
+    char *thisitem, *next;
     char *good;
 #define	wewant(p)	((nfrontp > p) && ((*p&0xff) == IAC) && \
 				(nfrontp > p+1 && (((*(p+1)&0xff) != EC) && ((*(p+1)&0xff) != EL))))
@@ -354,7 +354,7 @@ netflush(void)
  *    ptr - A pointer to a character string to write
  *    len - How many bytes to write
  */
-void writenet(register unsigned char *ptr, register int len)
+void writenet(unsigned char *ptr, register int len)
 {
 	/* flush buffer if no room for new data) */
 	if ((&netobuf[BUFSIZ] - nfrontp) < len) {
@@ -589,7 +589,7 @@ printoption(const char *fmt, int option)
 void
 printsub(char direction, unsigned char *pointer, int length)
 {
-    register int i = -1;
+    int i = -1;
 #ifdef AUTHENTICATE
     char buf[512];
 #endif
@@ -601,7 +601,7 @@ printsub(char direction, unsigned char *
 	    netoprintf("td: %s suboption ",
 		       direction == '<' ? "recv" : "send");
 	    if (length >= 3) {
-		register int j;
+		int j;
 
 		i = pointer[length-2];
 		j = pointer[length-1];
@@ -817,7 +817,7 @@ printsub(char direction, unsigned char *
 
 	case TELOPT_STATUS: {
 	    const char *cp;
-	    register int j, k;
+	    int j, k;
 
 	    netoprintf("STATUS");
 
@@ -914,7 +914,7 @@ printsub(char direction, unsigned char *
 		netoprintf("INFO ");
 	    env_common:
 		{
-		    register int noquote = 2;
+		    int noquote = 2;
 		    for (i = 2; i < length; i++ ) {
 			switch (pointer[i]) {
 			case ENV_VAR:
@@ -1125,7 +1125,7 @@ printsub(char direction, unsigned char *
 void
 printdata(const char *tag, const char *ptr, int cnt)
 {
-	register int i;
+	int i;
 	char xbuf[30];
 
 	while (cnt) {