diff '--color=auto' -uNr work.orig/client.c work/client.c
--- work.orig/client.c	2026-04-07 19:20:30.733614568 +0200
+++ work/client.c	2026-04-07 19:35:35.503638919 +0200
@@ -95,6 +95,32 @@
 
 #define VERSION "6.01.16"
 
+static int read_string(char *buf, size_t len)
+{
+    if (scanf("%254s", buf) != 1) {
+        if (len) buf[0] = 0;
+        return 0;
+    }
+    return 1;
+}
+
+static int read_int(int *value)
+{
+    if (scanf("%d", value) != 1) {
+        *value = 0;
+        return 0;
+    }
+    return 1;
+}
+
+static int read_line(char *buf, size_t len)
+{
+    if (!fgets(buf, len, stdin)) {
+        if (len) buf[0] = 0;
+        return 0;
+    }
+    return 1;
+}
 
 int main (int argc,char *argv[])
 {
@@ -585,7 +611,7 @@
 	NETWORKSTATUS stat;
 
 	BuildSendMenu ();
-	scanf ("%s",st);
+	read_string(st, sizeof(st));
 	getchar ();
 	choice = atoi (st);
 
@@ -593,40 +619,40 @@
 		case 1:
 			printf ("\nEnter Remote Name: ");
 			fflush (stdout);
-			scanf ("%s",send_remote);
+			read_string(send_remote, sizeof(send_remote));
 			getchar ();
 			break;
 		case 2:
 			printf ("\nCommand Name: ");
 			fflush (stdout);
-			scanf ("%s",st);
+			read_string(st, sizeof(st));
 			getchar ();
 			NetworkCommand (COMMAND_SEND,send_remote,st,0,0,&stat);
 			break;
 		case 3:
 			printf ("\nLCD Text: ");
 			fflush (stdout);
-			fgets (st,sizeof (st),stdin);
+			read_line(st, sizeof(st));
 			NetworkCommand (COMMAND_LCD,st,0,LCD_TEXT | LCD_BACKLIGHT,'L',&stat);
 			break;
 		case 4:
 			printf ("\nLCD Init Text Line 1: ");
 			fflush (stdout);
-			fgets (st,sizeof (st),stdin);
+			read_line(st, sizeof(st));
 			printf ("\nLCD Init Text Line 2: ");
 			fflush (stdout);
-			fgets (l2,sizeof (l2),stdin);
+			read_line(l2, sizeof(l2));
 			strcat (st,l2);
 			NetworkCommand (COMMAND_LCDINIT,st,0,LCD_TEXT,'L',&stat);
 			break;
 		case 5:
 			printf ("\nSwitch Number: ");
 			fflush (stdout);
-			scanf ("%d",&sw);
+			read_int(&sw);
 			getchar ();
 			printf ("\nSwitch Value: ");
 			fflush (stdout);
-			scanf ("%d",&md);
+			read_int(&md);
 			getchar ();
 			st[0] = sw;
 			st[1] = md;
@@ -647,7 +673,7 @@
 	NETWORKSTATUS stat;
 
 	BuildLearnMenu ();
-	scanf ("%s",st);
+	read_string(st, sizeof(st));
 	getchar ();
 	choice = atoi (st);
 
@@ -656,7 +682,7 @@
 			if (*learn_remote) NetworkCommand (COMMAND_CLOSE,learn_remote,st,0,'L',&stat);
 			printf ("\nEnter Remote Name: ");
 			fflush (stdout);
-			scanf ("%s",learn_remote);
+			if (scanf("%99s", learn_remote) != 1) learn_remote[0] = 0;
 			getchar ();
 			NetworkCommand (COMMAND_LRNREM,learn_remote,st,0,'L',&stat);
 			break;
@@ -670,7 +696,7 @@
 		case 3:
 			printf ("\nCommand Name: ");
 			fflush (stdout);
-			scanf ("%s",st);
+			read_string(st, sizeof(st));
 			getchar ();
 			printf ("\nPress Remote Button to learn ....");
 			fflush (stdout);
@@ -681,7 +707,7 @@
 		case 4:
 			printf ("\nCommand Name: ");
 			fflush (stdout);
-			scanf ("%s",st);
+			read_string(st, sizeof(st));
 			getchar ();
 			printf ("\nPress Remote Button to learn ....");
 			fflush (stdout);
@@ -692,7 +718,7 @@
 		case 5:
 			printf ("\nCommand Name: ");
 			fflush (stdout);
-			scanf ("%s",st);
+			read_string(st, sizeof(st));
 			getchar ();
 			printf ("\nPress Remote Button to learn ....");
 			fflush (stdout);
@@ -1108,7 +1134,7 @@
 		printf ("\nSelect command ");
 		fflush (stdout);
 
-		scanf ("%s",st);
+		read_string(st, sizeof(st));
 		getchar ();
 		choice = atoi (st);
 
@@ -1161,7 +1187,7 @@
 		printf ("\nSelect command ");
 		fflush (stdout);
 
-		scanf ("%s",st);
+		read_string(st, sizeof(st));
 		getchar ();
 		choice = atoi (st);
 
@@ -1213,7 +1239,7 @@
 		printf ("\nSelect command ");
 		fflush (stdout);
 
-		scanf ("%s",st);
+		read_string(st, sizeof(st));
 		getchar ();
 		choice = atoi (st);
 
@@ -1233,7 +1259,7 @@
 		printf ("\nSelect command ");
 		fflush (stdout);
 
-		scanf ("%s",st);
+		read_string(st, sizeof(st));
 		getchar ();
 		choice = atoi (st);
 
@@ -1285,7 +1311,7 @@
 		printf ("\nSelect command ");
 		fflush (stdout);
 
-		scanf ("%s",st);
+		read_string(st, sizeof(st));
 		getchar ();
 		choice = atoi (st);
 
@@ -1307,7 +1333,7 @@
 		printf ("\nSelect command ");
 		fflush (stdout);
 
-		scanf ("%s",st);
+		read_string(st, sizeof(st));
 		getchar ();
 		choice = atoi (st);
 
@@ -1350,7 +1376,7 @@
 		printf ("\nSelect command ");
 		fflush (stdout);
 
-		scanf ("%s",st);
+		read_string(st, sizeof(st));
 		getchar ();
 		choice = atoi (st);
 
@@ -1390,7 +1416,7 @@
 		printf ("\nSelect command ");
 		fflush (stdout);
 
-		scanf ("%s",st);
+		read_string(st, sizeof(st));
 		getchar ();
 		choice = atoi (st);
 
@@ -1404,7 +1430,7 @@
 	char st[255];
 	int choice,sel;
 
-	scanf ("%s",st);
+	read_string(st, sizeof(st));
 	getchar ();
 	choice = atoi (st);
 		
@@ -1508,7 +1534,7 @@
 			printf ("\n\nEnter PowerOn Remote: ");
 			fflush (stdout);
 			memset (st,0,255);
-			fgets (st,255,stdin);
+			if (!fgets(st, 255, stdin)) st[0] = 0;
 			while (st[strlen (st) - 1] == 10 || st[strlen (st) - 1] == 13) st[strlen (st) - 1] = 0;
 			memcpy (status->stat[bus][adr].remote,st,80);
 			
@@ -1517,7 +1543,7 @@
 			printf ("\n\nEnter PowerOn Command: ");
 			fflush (stdout);
 			memset (st,0,255);
-			fgets (st,255,stdin);
+			if (!fgets(st, 255, stdin)) st[0] = 0;
 			while (st[strlen (st) - 1] == 10 || st[strlen (st) - 1] == 13) st[strlen (st) - 1] = 0;
 			memcpy (status->stat[bus][adr].command,st,20);
 			
@@ -1526,7 +1552,7 @@
 			printf ("\n\nEnter PowerOff Remote: ");
 			fflush (stdout);
 			memset (st,0,255);
-			fgets (st,255,stdin);
+			if (!fgets(st, 255, stdin)) st[0] = 0;
 			while (st[strlen (st) - 1] == 10 || st[strlen (st) - 1] == 13) st[strlen (st) - 1] = 0;
 			memcpy (status->stat[bus][adr].remote2,st,80);
 			
@@ -1535,7 +1561,7 @@
 			printf ("\n\nEnter PowerOff Command: ");
 			fflush (stdout);
 			memset (st,0,255);
-			fgets (st,255,stdin);
+			if (!fgets(st, 255, stdin)) st[0] = 0;
 			while (st[strlen (st) - 1] == 10 || st[strlen (st) - 1] == 13) st[strlen (st) - 1] = 0;
 			memcpy (status->stat[bus][adr].command2,st,20);
 			
@@ -1544,7 +1570,7 @@
 			printf ("\n\nEnter MAC Address: ");
 			fflush (stdout);
 			memset (st,0,255);
-			fgets (st,255,stdin);
+			if (!fgets(st, 255, stdin)) st[0] = 0;
 			while (st[strlen (st) - 1] == 10 || st[strlen (st) - 1] == 13) st[strlen (st) - 1] = 0;
 			if (st[0] == 0 || st[1] == 0) {
 				memset (status->stat[bus][adr].command2,0,6);
@@ -1598,7 +1624,7 @@
 
 			printf ("\nSelect panel: ");
 			fflush (stdout);
-			scanf ("%s",st);
+			read_string(st, sizeof(st));
 			getchar ();
 			choice = atoi (st);
 		}
@@ -1653,7 +1679,7 @@
 	while (choice < 56) {
 		ShowSetStatus (adr,bus,status);
 
-		scanf ("%s",st);
+		read_string(st, sizeof(st));
 		getchar ();
 		choice = atoi (st);
 
@@ -1682,25 +1708,29 @@
 		if (choice == 52) {
 			printf ("\nEnter PowerOn Remote: ");
 			fflush (stdout);
-			scanf ("%s",status->stat[bus][adr].remote);
+			if (scanf("%79s", status->stat[bus][adr].remote) != 1)
+				status->stat[bus][adr].remote[0] = 0;
 		}
 			
 		if (choice == 53) {
 			printf ("\nEnter PowerOn Command: ");
 			fflush (stdout);
-			scanf ("%s",status->stat[bus][adr].command);
+			if (scanf("%19s", status->stat[bus][adr].command) != 1)
+				status->stat[bus][adr].command[0] = 0;
 		}
 
 		if (choice == 54) {
 			printf ("\nEnter PowerOff Remote: ");
 			fflush (stdout);
-			scanf ("%s",status->stat[bus][adr].remote2);
+			if (scanf("%79s", status->stat[bus][adr].remote2) != 1)
+				status->stat[bus][adr].remote2[0] = 0;
 		}
 			
 		if (choice == 55) {
 			printf ("\nEnter PowerOff Command: ");
 			fflush (stdout);
-			scanf ("%s",status->stat[bus][adr].command2);
+			if (scanf("%19s", status->stat[bus][adr].command2) != 1)
+				status->stat[bus][adr].command2[0] = 0;
 		}
 
 		if (choice == 99) {
@@ -1786,7 +1816,7 @@
 	printf ("\n99 - Exit\n");
 	printf ("\nSelect command ");
 	fflush (stdout);
-	scanf ("%s",st);
+	read_string(st, sizeof(st));
 	getchar ();
 	choice = atoi (st);
 
@@ -1818,7 +1848,7 @@
 	int choice = 0;
 
 	BuildMainMenu ();
-	scanf ("%s",st);
+	read_string(st, sizeof(st));
 	getchar ();
 	choice = atoi (st);
 
Binärdateien work.orig/ip_assign64 und work/ip_assign64 sind verschieden.
diff '--color=auto' -uNr work.orig/ip_assign.c work/ip_assign.c
--- work.orig/ip_assign.c	2026-04-07 19:20:30.733614568 +0200
+++ work/ip_assign.c	2026-04-07 19:30:48.216798431 +0200
@@ -206,7 +206,7 @@
 		printf ("Please select device to use (0 = Exit) ");
 		fflush (stdout);
 		do {
-			fgets (nm,sizeof (nm),stdin);
+			if (!fgets (nm,sizeof (nm),stdin)) nm[0] = 0;
 			choice = atoi (nm);
 		} while (nm[0] < '0');
 
@@ -309,7 +309,7 @@
 
 	printf ("\n\nConfigure device for DHCP (Y/N) ? ");
 	fflush (stdout);
-	fgets (nm,sizeof (nm),stdin);
+	if (!fgets (nm,sizeof (nm),stdin)) nm[0] = 0;
 	printf ("\n");
 
 	if (*nm == 'Y' || *nm == 'y') ip->dhcp_flag = 1;
@@ -317,26 +317,26 @@
 		do {
 			printf ("\nEnter IP Address: ");
 			fflush (stdout);
-			fgets (nm,sizeof (nm),stdin);
+			if (!fgets (nm,sizeof (nm),stdin)) nm[0] = 0;
 			ip->ip = inet_addr (nm);
 		} while (ip->ip == INADDR_NONE);
 		do {
 			printf ("\nEnter Netmask   : ");
 			fflush (stdout);
-			fgets (nm,sizeof (nm),stdin);
+			if (!fgets (nm,sizeof (nm),stdin)) nm[0] = 0;
 			ip->netmask = inet_addr (nm);
 		} while (ip->netmask == INADDR_NONE);
 		do {
 			printf ("\nDefault Gateway : ");
 			fflush (stdout);
-			fgets (nm,sizeof (nm),stdin);
+			if (!fgets (nm,sizeof (nm),stdin)) nm[0] = 0;
 			ip->gateway = inet_addr (nm);
 		} while (ip->gateway == INADDR_NONE);
 	}
 
 	printf ("\n\nEnter device password: ");
 	fflush (stdout);
-	fgets (ip->password,8,stdin);
+	if (!fgets (ip->password,8,stdin)) ip->password[0] = 0;
 
 	printf ("\n");
 }
Binärdateien work.orig/irclient64 und work/irclient64 sind verschieden.
Binärdateien work.orig/x64/client.o und work/x64/client.o sind verschieden.
Binärdateien work.orig/x64/ip_assign.o und work/x64/ip_assign.o sind verschieden.