File portsentry-compile.patch of Package portsentry

--- portsentry-1.1/portsentry_io.c.orig	2001-07-11 18:57:49.000000000 +0200
+++ portsentry-1.1/portsentry_io.c	2019-06-26 18:11:15.120991058 +0200
@@ -90,7 +90,9 @@ DaemonSeed (void)
     exit (0);
 
   setsid ();
-  chdir ("/");
+  if (chdir ("/") < 0) {
+    return (ERROR);
+  }
   umask (077);
 
   /* close stdout, stdin, stderr */
@@ -327,10 +329,10 @@ ConfigTokenRetrieve (char *token, char *
 #endif
 	      /* search for the token and make sure the trailing character */
 	      /* is a " " or "=" to make sure the entire token was found */
-	      if ((strstr (buffer, token) != (char) NULL) && 
+	      if ((strstr (buffer, token) != NULL) && 
 		   ((buffer[strlen(token)] == '=') || (buffer[strlen(token)] == ' '))) 
 		{		/* cut off the '=' and send it back */
-		  if (strstr (buffer, "\"") == (char) NULL)
+		  if (strstr (buffer, "\"") == NULL)
 		    {
 		      Log ("adminalert: Quotes missing from %s token. Option skipped\n", token);
 		      fclose (config);
@@ -676,7 +678,7 @@ IsBlocked (char *target, char *filename)
 
   while (fgets (buffer, MAXBUF, input) != NULL)
   {
-	if((ipOffset = strstr(buffer, target)) != (char) NULL)
+	if((ipOffset = strstr(buffer, target)) != NULL)
 	{
 		for(count = 0; count < strlen(ipOffset); count++)
 		{
@@ -733,7 +735,7 @@ char tempString[MAXBUF], *tempStringPtr;
 #endif
 
 	/* string not found in target */
-  	if (strstr (target, find) == (char) NULL)
+  	if (strstr (target, find) == NULL)
 	{
 		strncpy(result, target, MAXBUF);
 		#ifdef DEBUG
--- portsentry-1.1/portsentry.c.orig	2001-07-11 18:57:49.000000000 +0200
+++ portsentry-1.1/portsentry.c	2019-06-26 18:22:39.791193793 +0200
@@ -1086,7 +1086,8 @@ PortSentryModeTCP (void)
 {
 
   struct sockaddr_in client, server;
-  int length, portCount = 0, ports[MAXSOCKS];
+  socklen_t length;
+  int portCount = 0, ports[MAXSOCKS];
   int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
   int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE, boundPortCount = 0;
   int selectResult = 0;
@@ -1286,7 +1287,8 @@ int
 PortSentryModeUDP (void)
 {
   struct sockaddr_in client, server;
-  int length, ports[MAXSOCKS], openSockfd[MAXSOCKS], result = TRUE;
+  socklen_t length;
+  int ports[MAXSOCKS], openSockfd[MAXSOCKS], result = TRUE;
   int count = 0, portCount = 0, selectResult = 0, scanDetectTrigger = 0;
   int boundPortCount = 0, showBanner = FALSE;
   char *temp, target[IPMAXBUF], bannerBuffer[MAXBUF], configToken[MAXBUF];