Package init

2019-09-30 11:18:21 -04:00 · 2019-09-30 11:18:21 -04:00 · 211b6c9c33
commit 211b6c9c33
31 changed files with 3442 additions and 0 deletions
--- a/netkit-telnet-0.17-core-dump.patch
+++ b/netkit-telnet-0.17-core-dump.patch
@ -0,0 +1,13 @@
+diff --git a/telnet/main.c.old b/telnet/main.c
+index 599f0af..cf67ea6 100644
+--- a/telnet/main.c.old
+++ b/telnet/main.c
+@@ -337,7 +337,7 @@ main(int argc, char *argv[])
+ 	argv += optind;
+ 
+ 	if (argc) {
+-		char *args[7], **argp = args;
+		char *args[8], **argp = args;
+ 
+ 		if (argc > 2)
+ 			usage();
--- a/netkit-telnet-0.17-gcc7.patch
+++ b/netkit-telnet-0.17-gcc7.patch
@ -0,0 +1,121 @@
+diff --git a/telnet/utilities.c b/telnet/utilities.c
+index 0bb0eab..d89ca37 100644
+--- a/telnet/utilities.c
+++ b/telnet/utilities.c
+@@ -748,6 +748,7 @@ printsub(char direction, unsigned char *pointer, int length)
+ 	    env_common:
+ 		{
+ 		    register int noquote = 2;
+		    char* msg;
+ #if defined(ENV_HACK) && defined(OLD_ENVIRON)
+ 		    extern int old_env_var, old_env_value;
+ #endif
+@@ -758,14 +759,24 @@ printsub(char direction, unsigned char *pointer, int length)
+ 		     /*	case NEW_ENV_OVAR: */
+ 			    if (pointer[0] == TELOPT_OLD_ENVIRON) {
+ # ifdef	ENV_HACK
+-				if (old_env_var == OLD_ENV_VALUE)
+-				    fprintf(NetTrace, "\" (VALUE) " + noquote);
+-				else
+				if (old_env_var == OLD_ENV_VALUE) {
+				    msg = "\" (VALUE) ";
+				    fprintf(NetTrace, "%s", msg + noquote);
+				}
+				else {
+ # endif
+-				    fprintf(NetTrace, "\" VAR " + noquote);
+				    msg = "\" VAR ";
+				    fprintf(NetTrace, "%s", msg + noquote);
+# ifdef ENV_HACK
+				}
+#endif /*ENV_HACK*/
+ 			    } else
+ #endif /* OLD_ENVIRON */
+-				fprintf(NetTrace, "\" VALUE " + noquote);
+				msg = "\" VALUE ";
+				fprintf(NetTrace, "%s", msg + noquote);
+#ifdef OLD_ENVIRON
+			    }
+#endif /* OLD_ENVIRON */
+ 			    noquote = 2;
+ 			    break;
+ 
+@@ -774,24 +785,36 @@ printsub(char direction, unsigned char *pointer, int length)
+ 		     /* case OLD_ENV_VALUE: */
+ 			    if (pointer[0] == TELOPT_OLD_ENVIRON) {
+ # ifdef	ENV_HACK
+-				if (old_env_value == OLD_ENV_VAR)
+-				    fprintf(NetTrace, "\" (VAR) " + noquote);
+-				else
+				if (old_env_value == OLD_ENV_VAR) {
+				    msg = "\" (VAR) ";
+				    fprintf(NetTrace, "%s", msg + noquote);
+				}
+				else {
+ # endif
+-				    fprintf(NetTrace, "\" VALUE " + noquote);
+-			    } else
+				    msg = "\" VALUE ";
+				    fprintf(NetTrace, "%s", msg + noquote);
+# ifdef ENV_HACK
+				}
+# endif
+			    } else {
+ #endif /* OLD_ENVIRON */
+-				fprintf(NetTrace, "\" VAR " + noquote);
+				msg = "\" VAR ";
+				fprintf(NetTrace, "%s", msg + noquote);
+#ifdef OLD_ENVIRON
+			    }
+#endif
+ 			    noquote = 2;
+ 			    break;
+ 
+ 			case ENV_ESC:
+-			    fprintf(NetTrace, "\" ESC " + noquote);
+			    msg = "\" ESC ";
+			    fprintf(NetTrace, "%s", msg + noquote);
+ 			    noquote = 2;
+ 			    break;
+ 
+ 			case ENV_USERVAR:
+-			    fprintf(NetTrace, "\" USERVAR " + noquote);
+			    msg = "\" USERVAR ";
+			    fprintf(NetTrace, "%s", msg + noquote);
+ 			    noquote = 2;
+ 			    break;
+ 
+diff --git a/telnetd/utility.c b/telnetd/utility.c
+index 4a438be..82edee5 100644
+--- a/telnetd/utility.c
+++ b/telnetd/utility.c
+@@ -969,22 +969,26 @@ printsub(char direction, unsigned char *pointer, int length)
+ 	    env_common:
+ 		{
+ 		    register int noquote = 2;
+		    char* msg;
+ 		    for (i = 2; i < length; i++ ) {
+ 			switch (pointer[i]) {
+ 			case ENV_VAR:
+ 			    if (pointer[1] == TELQUAL_SEND)
+ 				goto def_case;
+-			    netoprintf("\" VAR " + noquote);
+			    msg = "\" VAR ";
+			    netoprintf("%s", msg + noquote);
+ 			    noquote = 2;
+ 			    break;
+ 
+ 			case ENV_VALUE:
+-			    netoprintf("\" VALUE " + noquote);
+			    msg = "\" VALUE ";
+			    netoprintf("%s", msg + noquote);
+ 			    noquote = 2;
+ 			    break;
+ 
+ 			case ENV_ESC:
+-			    netoprintf("\" ESC " + noquote);
+			    msg = "\" ESC ";
+			    netoprintf("%s", msg + noquote);
+ 			    noquote = 2;
+ 			    break;
+ 
--- a/netkit-telnet-0.17-ipv6.diff
+++ b/netkit-telnet-0.17-ipv6.diff
@ -0,0 +1,265 @@
+diff -uNr netkit-telnet-0.17/telnetd/telnetd.c netkit-telnet-0.17.ipv6/telnetd/telnetd.c
+--- netkit-telnet-0.17/telnetd/telnetd.c	2006-07-13 08:37:18.000000000 +0200
+++ netkit-telnet-0.17.ipv6/telnetd/telnetd.c	2006-07-14 08:36:11.000000000 +0200
+@@ -49,6 +49,7 @@
+ /* #include <netinet/ip.h> */ /* Don't think this is used at all here */
+ #include <arpa/inet.h>
+ #include <assert.h>
+#include <sys/poll.h>
+ #include "telnetd.h"
+ #include "pathnames.h"
+ #include "setproctitle.h"
+@@ -68,7 +69,7 @@
+ #define HAS_IPPROTO_IP
+ #endif
+ 
+-static void doit(struct sockaddr_in *who);
+static void doit(struct sockaddr *who, socklen_t wholen);
+ static int terminaltypeok(const char *s);
+ 
+ /*
+@@ -90,7 +91,7 @@
+ int
+ main(int argc, char *argv[], char *env[])
+ {
+-	struct sockaddr_in from;
+	struct sockaddr from;
+ 	int on = 1;
+ 	socklen_t fromlen;
+ 	register int ch;
+@@ -248,64 +249,89 @@
+ 	argc -= optind;
+ 	argv += optind;
+ 
+-	if (debug) {
+-	    int s, ns;
+-	    socklen_t foo;
+-	    struct servent *sp;
+-	    struct sockaddr_in sn;
+	int s = 0;
+ 
+-	    memset(&sn, 0, sizeof(sn));
+-	    sn.sin_family = AF_INET;
+	if (debug) {
+	    struct addrinfo *ai;
+	    unsigned int nfds = 0;
+	    struct pollfd fds[2];
+ 
+ 	    if (argc > 1) {
+-		usage();
+-		/* NOTREACHED */
+-	    } else if (argc == 1) {
+-		    if ((sp = getservbyname(*argv, "tcp"))!=NULL) {
+-			sn.sin_port = sp->s_port;
+-		    } 
+-		    else {
+-			int pt = atoi(*argv);
+-			if (pt <= 0) {
+-			    fprintf(stderr, "telnetd: %s: bad port number\n",
+-				    *argv);
+-			    usage();
+-			    /* NOTREACHED */
+-			}
+-			sn.sin_port = htons(pt);
+-		   }
+	        usage();
+	        /* NOTREACHED */
+ 	    } else {
+-		sp = getservbyname("telnet", "tcp");
+-		if (sp == 0) {
+-		    fprintf(stderr, "telnetd: tcp/telnet: unknown service\n");
+-		    exit(1);
+-		}
+-		sn.sin_port = sp->s_port;
+-	    }
+	        struct addrinfo hints;
+
+	        memset (&hints, '\0', sizeof (hints));
+	        hints.ai_socktype = SOCK_STREAM;
+	        hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
+	        hints.ai_protocol = IPPROTO_TCP;
+
+	        if (argc == 0) {
+	            if (getaddrinfo(NULL, "telnet", &hints, &ai) != 0) {
+	               fprintf(stderr, "telnetd: %s: bad port number\n", *argv);
+	                usage();
+	                /* NOTREACHED */
+	            }
+	        } else {
+	            if (getaddrinfo(NULL, *argv, &hints, &ai) != 0) {
+		        fprintf(stderr, "telnetd: %s: bad port number\n", *argv);
+		        usage();
+		        /* NOTREACHED */
+		    }
+                }
+	    }	
+ 
+-	    s = socket(AF_INET, SOCK_STREAM, 0);
+-	    if (s < 0) {
+	    struct addrinfo *runp;
+	    int b = 0;
+	    for (runp = ai; ((runp != NULL) && (nfds < sizeof (fds) / sizeof (fds[0]))); runp = runp->ai_next) {
+	        fds[nfds].fd = socket(runp->ai_family, runp->ai_socktype, runp->ai_protocol);
+	        if (fds[nfds].fd < 0) {
+ 		    perror("telnetd: socket");;
+-		    exit(1);
+	            exit(1);
+	        }
+	        fds[nfds].events = POLLIN;
+	        (void) setsockopt(fds[nfds].fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
+
+	        if (bind(fds[nfds].fd, runp->ai_addr, runp->ai_addrlen) != 0) {
+	            // Unable to bind to given port. One of the reason can be
+	            // that we can't bind to both IPv4 and IPv6
+	            break;
+	        } else {			
+	            b++;
+	        }
+
+	        if (listen(fds[nfds].fd, 1) < 0) {
+	            perror("listen");
+	            exit(1);
+	        }
+                nfds++;
+ 	    }
+-	    (void) setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
+-	    if (bind(s, (struct sockaddr *)&sn, sizeof(sn)) < 0) {
+-		perror("bind");
+-		exit(1);
+-	    }
+-	    if (listen(s, 1) < 0) {
+-		perror("listen");
+-		exit(1);
+	    freeaddrinfo(ai);
+
+	    if (b == 0) {
+	        perror("bind");
+	        exit(1);
+ 	    }
+-	    foo = sizeof(sn);
+-	    ns = accept(s, (struct sockaddr *)&sn, &foo);
+-	    if (ns < 0) {
+-		perror("accept");
+-		exit(1);
+
+	    int n = poll (fds, nfds, -1);
+	    if (n > 0) {
+	        unsigned int i;
+	        for (i = 0; i < nfds; i++) {
+	            if (fds[i].revents & POLLIN) {
+	                struct sockaddr_storage rem;
+	                socklen_t remlen = sizeof(rem);
+	                int fd = accept(fds[i].fd, (struct sockaddr *) &rem, &remlen);
+
+	                if (fd < 0) {
+	                    perror("accept");
+	                    exit(1);
+	                }
+
+	                s = fd;
+	            }
+	        }
+ 	    }
+-	    (void) dup2(ns, 0);
+-	    (void) close(ns);
+-	    (void) close(s);
+ 	} else if (argc > 0) {
+ 		usage();
+ 		/* NOT REACHED */
+@@ -313,13 +339,13 @@
+ 
+ 	openlog("telnetd", LOG_PID | LOG_ODELAY, LOG_DAEMON);
+ 	fromlen = sizeof (from);
+-	if (getpeername(0, (struct sockaddr *)&from, &fromlen) < 0) {
+	if (getpeername(s, &from, &fromlen) < 0) {
+ 		fprintf(stderr, "%s: ", progname);
+ 		perror("getpeername");
+ 		_exit(1);
+ 	}
+ 	if (keepalive &&
+-	    setsockopt(0, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof (on)) < 0) {
+	    setsockopt(s, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof (on)) < 0) {
+ 		syslog(LOG_WARNING, "setsockopt (SO_KEEPALIVE): %m");
+ 	}
+ 
+@@ -333,13 +359,13 @@
+ 		if (tos < 0)
+ 			tos = 020;	/* Low Delay bit */
+ 		if (tos
+-		   && (setsockopt(0, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)) < 0)
+		   && (setsockopt(s, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)) < 0)
+ 		   && (errno != ENOPROTOOPT) )
+ 			syslog(LOG_WARNING, "setsockopt (IP_TOS): %m");
+ 	}
+ #endif	/* defined(HAS_IPPROTO_IP) && defined(IP_TOS) */
+-	net = 0;
+-	doit(&from);
+	net = s;
+	doit(&from, fromlen);
+ 	/* NOTREACHED */
+ 	return 0;
+ }  /* end of main */
+@@ -608,10 +634,9 @@
+  * Get a pty, scan input lines.
+  */
+ static void
+-doit(struct sockaddr_in *who)
+doit(struct sockaddr *who, socklen_t wholen)
+ {
+ 	const char *host;
+-	struct hostent *hp;
+ 	int level;
+ 	char user_name[256];
+ 
+@@ -623,12 +648,18 @@
+ 		fatal(net, "All network ports in use");
+ 
+ 	/* get name of connected client */
+-	hp = gethostbyaddr((char *)&who->sin_addr, sizeof (struct in_addr),
+-		who->sin_family);
+-	if (hp)
+-		host = hp->h_name;
+-	else
+-		host = inet_ntoa(who->sin_addr);
+	int error = -1;
+	char namebuf[255];
+
+	error = getnameinfo(who, wholen, namebuf, sizeof(namebuf), NULL, 0, 0);
+	
+	if (error) {
+		perror("getnameinfo: localhost");
+		perror(gai_strerror(error));
+		exit(1);		
+	}
+	
+	host = namebuf;
+ 
+ 	/*
+ 	 * We must make a copy because Kerberos is probably going
+@@ -649,13 +680,21 @@
+ 
+ 	/* Get local host name */
+ 	{
+-		struct hostent *h;
+		struct addrinfo hints;
+		struct addrinfo *res;
+		int e;
+
+		memset(&hints, '\0', sizeof(hints));
+		hints.ai_socktype = SOCK_STREAM;
+		hints.ai_flags = AI_ADDRCONFIG;
+
+ 		gethostname(host_name, sizeof(host_name));
+-		h = gethostbyname(host_name);
+-		if (h) {
+-		    strncpy(host_name, h->h_name, sizeof(host_name));
+-		    host_name[sizeof(host_name)-1] = 0;
+		if ((e = getaddrinfo(host_name, NULL, &hints, &res)) != 0) {
+			perror("getaddrinfo: localhost");
+			perror(gai_strerror(e));
+			exit(1);
+ 		}
+		freeaddrinfo(res);
+ 	}
+ 
+ #if	defined(AUTHENTICATE) || defined(ENCRYPT)
--- a/netkit-telnet-0.17-manpage.patch
+++ b/netkit-telnet-0.17-manpage.patch
@ -0,0 +1,15 @@
+diff --git a/telnet/telnet.1 b/telnet/telnet.1
+index f30e034..e3a873e 100644
+--- a/telnet/telnet.1
+++ b/telnet/telnet.1
+@@ -74,6 +74,10 @@ If it is invoked with arguments, it performs an
+ .Ic open
+ command with those arguments.
+ .Pp
+If a hostname is resolved to multiple IP addresses, 
+.Nm 
+attempts to establish a connection with each address until one of them is successful or until no more addresses are left.
+.Pp
+ The options are as follows:
+ .Bl -tag -width Ds
+ .It Fl 4
--- a/netkit-telnet-0.17-nodns.patch
+++ b/netkit-telnet-0.17-nodns.patch
@ -0,0 +1,43 @@
+--- netkit-telnet-0.17.orig/telnetd/telnetd.c	2007-03-13 16:31:20.000000000 +0000
+++ netkit-telnet-0.17.orig/telnetd/telnetd.c	2007-03-13 16:31:26.000000000 +0000
+@@ -653,6 +653,11 @@ doit(struct sockaddr *who, socklen_t who
+ 
+ 	error = getnameinfo(who, wholen, namebuf, sizeof(namebuf), NULL, 0, 0);
+ 	
+	/* if we can't get a hostname now, settle for an address */	
+	if(error == EAI_AGAIN)
+		error = getnameinfo(who, wholen, namebuf, sizeof(namebuf),
+				NULL, 0, NI_NUMERICHOST);
+		
+ 	if (error) {
+ 		perror("getnameinfo: localhost");
+ 		perror(gai_strerror(error));
+@@ -681,7 +686,7 @@ doit(struct sockaddr *who, socklen_t who
+ 	/* Get local host name */
+ 	{
+ 		struct addrinfo hints;
+-		struct addrinfo *res;
+		struct addrinfo *res = 0;
+ 		int e;
+ 
+ 		memset(&hints, '\0', sizeof(hints));
+@@ -690,11 +695,14 @@ doit(struct sockaddr *who, socklen_t who
+ 
+ 		gethostname(host_name, sizeof(host_name));
+ 		if ((e = getaddrinfo(host_name, NULL, &hints, &res)) != 0) {
+-			perror("getaddrinfo: localhost");
+-			perror(gai_strerror(e));
+-			exit(1);
+			if(e != EAI_AGAIN) {
+				fprintf(stderr, "getaddrinfo: localhost %s\n", 
+				        gai_strerror(e));
+				exit(1);
+			}
+ 		}
+-		freeaddrinfo(res);
+		if(res)
+			freeaddrinfo(res);
+ 	}
+ 
+ #if	defined(AUTHENTICATE) || defined(ENCRYPT)
+
--- a/netkit-telnet-0.17-reallynodns.patch
+++ b/netkit-telnet-0.17-reallynodns.patch
@ -0,0 +1,88 @@
+--- netkit-telnet-0.17.orig/telnetd/telnetd.c.reallynodns	2009-03-12 14:32:29.000000000 -0700
+++ netkit-telnet-0.17.orig/telnetd/telnetd.c	2009-03-12 14:51:59.000000000 -0700
+@@ -85,6 +85,7 @@
+ int keepalive = 1;
+ char *loginprg = _PATH_LOGIN;
+ char *progname;
+int lookupself = 1;
+ 
+ extern void usage(void);
+ 
+@@ -111,7 +112,7 @@
+ 
+ 	progname = *argv;
+ 
+-	while ((ch = getopt(argc, argv, "d:a:e:lhnr:I:D:B:sS:a:X:L:")) != EOF) {
+	while ((ch = getopt(argc, argv, "d:a:e:lhnr:I:D:B:sS:a:X:L:N")) != EOF) {
+ 		switch(ch) {
+ 
+ #ifdef	AUTHENTICATE
+@@ -210,6 +211,10 @@
+ 			keepalive = 0;
+ 			break;
+ 
+                case 'N':
+                        lookupself = 0;
+                        break;
+
+ #ifdef	SecurID
+ 		case 's':
+ 			/* SecurID required */
+@@ -393,6 +398,7 @@
+ #endif
+ 	fprintf(stderr, " [-L login_program]");
+ 	fprintf(stderr, " [-n]");
+	fprintf(stderr, " [-N]");
+ #ifdef	SecurID
+ 	fprintf(stderr, " [-s]");
+ #endif
+@@ -691,15 +697,20 @@
+ 
+ 		memset(&hints, '\0', sizeof(hints));
+ 		hints.ai_socktype = SOCK_STREAM;
+-		hints.ai_flags = AI_ADDRCONFIG;
+		hints.ai_flags = AI_CANONNAME;
+ 
+ 		gethostname(host_name, sizeof(host_name));
+-		if ((e = getaddrinfo(host_name, NULL, &hints, &res)) != 0) {
+-			if(e != EAI_AGAIN) {
+-				fprintf(stderr, "getaddrinfo: localhost %s\n", 
+-				        gai_strerror(e));
+-				exit(1);
+-			}
+                /*
+                 * Optionally canonicalize the local host name, in case
+                 * gethostname() returns foo, we want foo.example.com
+                 */
+		if (lookupself &&
+                    (e = getaddrinfo(host_name, NULL, &hints, &res)) == 0) {
+                        if (res->ai_canonname) {
+                                strncpy(host_name, res->ai_canonname,
+                                                        sizeof(host_name)-1);
+                                host_name[sizeof(host_name)-1] = 0;
+                        }
+ 		}
+ 		if(res)
+ 			freeaddrinfo(res);
+--- netkit-telnet-0.17.orig/telnetd/telnetd.8.reallynodns	2009-03-12 14:54:54.000000000 -0700
+++ netkit-telnet-0.17.orig/telnetd/telnetd.8	2009-03-12 14:56:58.000000000 -0700
+@@ -42,7 +42,7 @@
+ protocol server
+ .Sh SYNOPSIS
+ .Nm /usr/sbin/in.telnetd
+-.Op Fl hns
+.Op Fl hnNs
+ .Op Fl a Ar authmode
+ .Op Fl D Ar debugmode
+ .Op Fl L Ar loginprg
+@@ -175,6 +175,10 @@
+ if the client is still there, so that idle connections
+ from machines that have crashed or can no longer
+ be reached may be cleaned up.
+.It Fl N
+Do not use DNS to canonicalize the local hostname;
+.Fn gethostname 2
+returns a fully qualified name.
+ .It Fl s
+ This option is only enabled if
+ .Nm telnetd
--- a/netkit-telnet-0.17-telnetrc.patch
+++ b/netkit-telnet-0.17-telnetrc.patch
@ -0,0 +1,19 @@
+diff --git a/telnet/commands.c b/telnet/commands.c
+index 636fb5c..c0cc9b9 100644
+--- a/telnet/commands.c
+++ b/telnet/commands.c
+@@ -2217,11 +2217,11 @@ cmdrc(char *m1, char *m2)
+ 	    if (isspace(line[0]))
+ 		continue;
+ 	    if (strncasecmp(line, m1, l1) == 0)
+-		strncpy(line, &line[l1], sizeof(line) - l1);
+		memmove(line, &line[l1], sizeof(line) - l1);
+ 	    else if (strncasecmp(line, m2, l2) == 0)
+-		strncpy(line, &line[l2], sizeof(line) - l2);
+		memmove(line, &line[l2], sizeof(line) - l2);
+ 	    else if (strncasecmp(line, "DEFAULT", 7) == 0)
+-		strncpy(line, &line[7], sizeof(line) - 7);
+		memmove(line, &line[7], sizeof(line) - 7);
+ 	    else
+ 		continue;
+ 	    if (line[0] != ' ' && line[0] != '\t' && line[0] != '\n')
--- a/netkit-telnet-0.17.tar.gz
+++ b/netkit-telnet-0.17.tar.gz
--- a/telnet-0.17-8bit.patch
+++ b/telnet-0.17-8bit.patch
@ -0,0 +1,33 @@
+diff -ru netkit-telnet-0.17.orig/telnet/main.c netkit-telnet-0.17/telnet/main.c
+--- netkit-telnet-0.17.orig/telnet/main.c	2003-05-15 20:07:40.000000000 +0200
+++ netkit-telnet-0.17/telnet/main.c	2003-05-16 00:18:28.000000000 +0200
+@@ -143,7 +143,7 @@
+ 	while ((ch = getopt(argc, argv, "78DEKLS:X:ab:cde:fFk:l:n:rt:x")) != -1) {
+ 		switch(ch) {
+ 		case '8':
+-			eight = 3;	/* binary output and input */
+			binary = 3;	/* send TELNET BINARY option for output and input */
+ 			break;
+ 		case '7':
+ 			eight = 0;
+@@ -165,7 +165,7 @@
+ #endif
+ 			break;
+ 		case 'L':
+-			eight |= 2;	/* binary output only */
+			binary = 2;	/* send TELNET BINARY option for output only */
+ 			break;
+ 		case 'S':
+ 		    {
+diff -ru netkit-telnet-0.17.orig/telnet/telnet.1 netkit-telnet-0.17/telnet/telnet.1
+--- netkit-telnet-0.17.orig/telnet/telnet.1	2003-05-15 20:07:40.000000000 +0200
+++ netkit-telnet-0.17/telnet/telnet.1	2003-05-15 23:38:37.000000000 +0200
+@@ -76,6 +76,8 @@
+ .Pp
+ The options are as follows:
+ .Bl -tag -width Ds
+.It Fl 7
+Strip 8th bit on input and output. Telnet is 8-bit clean by default but doesn't send the TELNET BINARY option unless forced.
+ .It Fl 8
+ Specifies an 8-bit data path.
+ This causes an attempt to negotiate the
--- a/telnet-0.17-CAN-2005-468_469.patch
+++ b/telnet-0.17-CAN-2005-468_469.patch
@ -0,0 +1,179 @@
+--- netkit-telnet-0.17/telnet/telnet.c.CAN-2005-468_469	2005-03-17 13:48:58.000000000 +0100
+++ netkit-telnet-0.17/telnet/telnet.c	2005-03-17 14:02:27.000000000 +0100
+@@ -1310,22 +1310,66 @@
+ }
+ 
+ 
+-unsigned char slc_reply[128];
+#define SLC_REPLY_SIZE 128
+unsigned char *slc_reply;
+ unsigned char *slc_replyp;
+unsigned char *slc_replyend;
+ 
+ 	void
+ slc_start_reply(void)
+ {
+        slc_reply = (unsigned char *)malloc(SLC_REPLY_SIZE);
+        if (slc_reply == NULL) {
+/*@*/           printf("slc_start_reply: malloc()/realloc() failed!!!\n");
+                slc_reply = slc_replyp = slc_replyend = NULL;
+                return;
+	}
+
+ 	slc_replyp = slc_reply;
+	slc_replyend = slc_reply + SLC_REPLY_SIZE;
+ 	*slc_replyp++ = IAC;
+ 	*slc_replyp++ = SB;
+ 	*slc_replyp++ = TELOPT_LINEMODE;
+ 	*slc_replyp++ = LM_SLC;
+ }
+ 
+static int
+slc_assure_buffer(int want_len);
+
+	static int
+slc_assure_buffer(int want_len)
+{
+        if ((slc_replyp + want_len) >= slc_replyend) {
+                int len;
+		int old_len = slc_replyp - slc_reply;
+		unsigned char *p;
+
+                len = old_len
+			+ (want_len / SLC_REPLY_SIZE + 1) * SLC_REPLY_SIZE;
+                p = (unsigned char *)realloc(slc_reply, len);
+                if (p == NULL)
+                        free(slc_reply);
+                slc_reply = p;
+                if (slc_reply == NULL) {
+/*@*/                   printf("slc_add_reply: realloc() failed!!!\n");
+                        slc_reply = slc_replyp = slc_replyend = NULL;
+                        return 1;
+                }
+                slc_replyp = slc_reply + old_len;
+                slc_replyend = slc_reply + len;
+        }
+	return 0;
+}
+
+ 	void
+ slc_add_reply(unsigned char func, unsigned char flags, cc_t value)
+ {
+	if (slc_assure_buffer(6))
+		return;
+
+	if (slc_replyp == NULL)
+		return;
+
+ 	if ((*slc_replyp++ = func) == IAC)
+ 		*slc_replyp++ = IAC;
+ 	if ((*slc_replyp++ = flags) == IAC)
+@@ -1339,6 +1383,12 @@
+ {
+     int len;
+ 
+    if (slc_assure_buffer(2))
+	return;
+
+    if (slc_replyp == NULL)
+	return;
+
+     *slc_replyp++ = IAC;
+     *slc_replyp++ = SE;
+     len = slc_replyp - slc_reply;
+@@ -1456,7 +1506,7 @@
+ 	}
+ }
+ 
+-#define	OPT_REPLY_SIZE	256
+#define	OPT_REPLY_SIZE	1024
+ unsigned char *opt_reply;
+ unsigned char *opt_replyp;
+ unsigned char *opt_replyend;
+@@ -1490,10 +1540,38 @@
+ env_opt_start_info(void)
+ {
+ 	env_opt_start();
+-	if (opt_replyp)
+	if (opt_replyp && (opt_replyp > opt_reply))
+ 	    opt_replyp[-1] = TELQUAL_INFO;
+ }
+ 
+static int
+env_opt_assure_buffer(int want_len);
+
+	static int
+env_opt_assure_buffer(int want_len)
+{
+        if ((opt_replyp + want_len) >= opt_replyend) {
+		int len;
+		unsigned char *p;
+		int old_len = opt_replyp - opt_reply;
+
+		len = old_len
+			+ (want_len / OPT_REPLY_SIZE + 1) * OPT_REPLY_SIZE;
+		p = (unsigned char *)realloc(opt_reply, len);
+		if (p == NULL)
+			free(opt_reply);
+		opt_reply = p;
+		if (opt_reply == NULL) {
+/*@*/			printf("env_opt_add: realloc() failed!!!\n");
+			opt_reply = opt_replyp = opt_replyend = NULL;
+			return 1;
+		}
+		opt_replyp = opt_reply + old_len;
+		opt_replyend = opt_reply + len;
+	}
+	return 0;
+}
+
+ 	void
+ env_opt_add(unsigned char *ep)
+ {
+@@ -1515,25 +1593,12 @@
+ 		return;
+ 	}
+ 	vp = env_getvalue(ep, 1);
+-	if (opt_replyp + (vp ? strlen((char *)vp) : 0) +
+-				strlen((char *)ep) + 6 > opt_replyend)
+-	{
+-		int len;
+-		unsigned char *p;
+-		opt_replyend += OPT_REPLY_SIZE;
+-		len = opt_replyend - opt_reply;
+-		p = (unsigned char *)realloc(opt_reply, len);
+-		if (p == NULL)
+-			free(opt_reply);
+-		opt_reply = p;
+-		if (opt_reply == NULL) {
+-/*@*/			printf("env_opt_add: realloc() failed!!!\n");
+-			opt_reply = opt_replyp = opt_replyend = NULL;
+-			return;
+-		}
+-		opt_replyp = opt_reply + len - (opt_replyend - opt_replyp);
+-		opt_replyend = opt_reply + len;
+-	}
+
+	/* use the double length in case it gots escaped */
+	if (env_opt_assure_buffer((vp ? strlen((char *)vp)*2 : 0) +
+				strlen((char *)ep)*2 + 6))
+		return;
+
+ 	if (opt_welldefined((char *)ep))
+ #ifdef	OLD_ENVIRON
+ 		if (telopt_environ == TELOPT_OLD_ENVIRON)
+@@ -1588,8 +1653,14 @@
+ {
+ 	int len;
+ 
+        if (opt_reply == NULL)          /*XXX*/
+                return;                 /*XXX*/
+
+
+ 	len = opt_replyp - opt_reply + 2;
+ 	if (emptyok || len > 6) {
+		if (env_opt_assure_buffer(2))
+			return;
+ 		*opt_replyp++ = IAC;
+ 		*opt_replyp++ = SE;
+ 		if (NETROOM() > len) {
--- a/telnet-0.17-argv.patch
+++ b/telnet-0.17-argv.patch
@ -0,0 +1,12 @@
+diff -ur netkit-telnet-0.17/telnetd/setproctitle.c netkit-telnet-0.17.new/telnetd/setproctitle.c
+--- netkit-telnet-0.17/telnetd/setproctitle.c	1999-12-11 00:06:39.000000000 +0100
+++ netkit-telnet-0.17.new/telnetd/setproctitle.c	2004-06-28 16:48:51.153514392 +0200
+@@ -139,7 +139,7 @@
+ 	(void) strcpy(Argv[0], buf);
+ 	p = &Argv[0][i];
+ 	while (p < LastArgv)
+-		*p++ = ' ';
+		*p++ = '\0';
+ 	Argv[1] = NULL;
+ }
+ 
--- a/telnet-0.17-cleanup_race.patch
+++ b/telnet-0.17-cleanup_race.patch
@ -0,0 +1,11 @@
+--- netkit-telnet-0.17/telnetd/telnetd.c.cleanup_race	2005-01-11 18:39:49.578123000 -0500
+++ netkit-telnet-0.17/telnetd/telnetd.c	2005-01-11 18:42:45.909616000 -0500
+@@ -1081,6 +1081,8 @@
+ 	if (FD_ISSET(p, &obits) && (pfrontp - pbackp) > 0)
+ 	    ptyflush();
+     }
+    /* to avoid a race for wtmp lock */
+    signal(SIGCHLD, SIG_IGN);
+     cleanup(0);
+ }  /* end of telnet */
+ 	
--- a/telnet-0.17-conf.patch
+++ b/telnet-0.17-conf.patch
@ -0,0 +1,23 @@
+--- netkit-telnet-0.17/configure.confverb	2000-07-29 20:00:29.000000000 +0200
+++ netkit-telnet-0.17/configure	2004-07-05 10:50:36.492963840 +0200
+@@ -263,14 +263,19 @@
+ cat <<EOF >__conftest.cc
+ #include <unistd.h>
+ #include <signal.h>
+-int count=0;
+volatile int count=0;
+ void handle(int foo) { count++; }
+ int main() {
+    sigset_t sset;
+     int pid=getpid();
+    sigemptyset(&sset);
+    sigaddset(&sset, SIGINT);
+    sigprocmask(SIG_UNBLOCK, &sset, NULL);
+     signal(SIGINT, handle);
+     kill(pid,SIGINT);
+     kill(pid,SIGINT);
+     kill(pid,SIGINT);
+    sleep(1);
+     if (count!=3) return 1;
+     return 0;
+ }
--- a/telnet-0.17-env.patch
+++ b/telnet-0.17-env.patch
@ -0,0 +1,84 @@
+--- netkit-telnet-0.17-pre-20000204/telnet/commands.c.env	Thu Apr  8 19:30:20 1999
+++ netkit-telnet-0.17-pre-20000204/telnet/commands.c	Tue May 16 17:19:47 2000
+@@ -1815,11 +1815,11 @@
+ }
+ 
+ 	unsigned char *
+-env_getvalue(unsigned char *var)
+env_getvalue(unsigned char *var, int exported_only)
+ {
+-	struct env_lst *ep;
+	struct env_lst *ep = env_find(var);
+ 
+-	if ((ep = env_find(var)))
+	if (ep && (!exported_only || ep->export))
+ 		return(ep->value);
+ 	return(NULL);
+ }
+--- netkit-telnet-0.17-pre-20000204/telnet/telnet.c.env	Tue May 16 17:19:47 2000
+++ netkit-telnet-0.17-pre-20000204/telnet/telnet.c	Tue May 16 17:19:47 2000
+@@ -438,7 +438,7 @@
+ #endif
+ 
+ 	    case TELOPT_XDISPLOC:	/* X Display location */
+-		if (env_getvalue((unsigned char *)"DISPLAY"))
+		if (env_getvalue((unsigned char *)"DISPLAY", 0))
+ 		    new_state_ok = 1;
+ 		break;
+ 
+@@ -693,7 +693,7 @@
+ 		resettermname = 0;
+ 		if (tnamep && tnamep != unknown)
+ 			free(tnamep);
+-		if ((tname = (char *)env_getvalue((unsigned char *)"TERM")) &&
+		if ((tname = (char *)env_getvalue((unsigned char *)"TERM", 0)) &&
+ 				(setupterm(tname, 1, &errret) == 0)) {
+ 			tnamep = mklist(ttytype, tname);
+ 		} else {
+@@ -870,7 +870,7 @@
+ 	    unsigned char temp[50], *dp;
+ 	    int len;
+ 
+-	    if ((dp = env_getvalue((unsigned char *)"DISPLAY")) == NULL) {
+	    if ((dp = env_getvalue((unsigned char *)"DISPLAY", 0)) == NULL) {
+ 		/*
+ 		 * Something happened, we no longer have a DISPLAY
+ 		 * variable.  So, turn off the option.
+@@ -1527,7 +1527,7 @@
+ 			env_opt_add(ep);
+ 		return;
+ 	}
+-	vp = env_getvalue(ep);
+	vp = env_getvalue(ep, 1);
+ 	if (opt_replyp + (vp ? strlen((char *)vp) : 0) +
+ 				strlen((char *)ep) + 6 > opt_replyend)
+ 	{
+@@ -2170,7 +2170,7 @@
+ 	send_will(TELOPT_LINEMODE, 1);
+ 	send_will(TELOPT_NEW_ENVIRON, 1);
+ 	send_do(TELOPT_STATUS, 1);
+-	if (env_getvalue((unsigned char *)"DISPLAY"))
+	if (env_getvalue((unsigned char *)"DISPLAY", 0))
+ 	    send_will(TELOPT_XDISPLOC, 1);
+ 	if (binary)
+ 	    tel_enter_binary(binary);
+--- netkit-telnet-0.17-pre-20000204/telnet/externs.h.env	Mon Feb  8 15:56:11 1999
+++ netkit-telnet-0.17-pre-20000204/telnet/externs.h	Tue May 16 17:19:47 2000
+@@ -203,7 +203,7 @@
+ void env_send (unsigned char *);
+ void env_list (void);
+ unsigned char * env_default(int init, int welldefined);
+-unsigned char * env_getvalue(unsigned char *var);
+unsigned char * env_getvalue(unsigned char *var, int exported_only);
+ 
+ void set_escape_char(char *s);
+ unsigned long sourceroute(char *arg, char **cpp, int *lenp);
+@@ -335,7 +335,7 @@
+ void     env_opt_end (int);
+ 
+ unsigned char     *env_default (int, int);
+-unsigned char     *env_getvalue (unsigned char *);
+unsigned char     *env_getvalue (unsigned char *, int);
+ 
+ int get_status (void);
+ int dosynch (void);
--- a/telnet-0.17-errno_test_sys_bsd.patch
+++ b/telnet-0.17-errno_test_sys_bsd.patch
@ -0,0 +1,24 @@
+diff -up netkit-telnet-0.17/telnet/sys_bsd.c.errnosysbsd netkit-telnet-0.17/telnet/sys_bsd.c
+--- netkit-telnet-0.17/telnet/sys_bsd.c.errnosysbsd	2007-09-20 10:57:58.000000000 +0200
+++ netkit-telnet-0.17/telnet/sys_bsd.c	2007-09-20 11:10:08.000000000 +0200
+@@ -375,6 +375,7 @@ TerminalNewMode(int f)
+     int onoff;
+     int old;
+     cc_t esc;
+    int err;
+ 
+     globalmode = f&~MODE_FORCE;
+     if (prevmode == f)
+@@ -407,6 +408,12 @@ TerminalNewMode(int f)
+ 	    tcsetattr(tin, TCSADRAIN, &tmp_tc);
+ #endif	/* USE_TERMIO */
+ 	    old = ttyflush(SYNCHing|flushout);
+            if (old < 0) {
+	      err = errno;
+              if (! ((err == EINTR) || (err == EAGAIN) || (err == ENOSPC))) {
+                break;
+              }
+            }
+ 	} while (old < 0 || old > 1);
+     }
+ 
--- a/telnet-0.17-force-ipv6-ipv4.patch
+++ b/telnet-0.17-force-ipv6-ipv4.patch
@ -0,0 +1,132 @@
+diff --git a/commands.c b/commands.c
+index 49619ac..636fb5c 100644
+--- a/telnet/commands.c
+++ b/telnet/commands.c
+@@ -2267,6 +2267,7 @@ tn(int argc, char *argv[])
+     char *srp = 0;
+     int srlen;
+ #endif
+    int family = AF_UNSPEC;
+     char *cmd, *hostp = 0, *portp = 0, *user = 0, *aliasp = 0;
+     int retry;
+ #ifdef NI_WITHSCOPEID
+@@ -2317,6 +2318,21 @@ tn(int argc, char *argv[])
+ 	    autologin = 1;
+ 	    continue;
+ 	}
+	
+	if (strcmp(*argv, "-6") == 0) {
+	    --argc; ++argv;
+#ifdef AF_INET6
+	    family = AF_INET6;
+#else
+	    puts("IPv6 unsupported");
+#endif
+	    continue;
+	}
+	if (strcmp(*argv, "-4") == 0) {
+	    --argc; ++argv;
+	    family = AF_INET;
+	    continue;
+	}
+ 	if (hostp == 0) {
+ 	    hostp = *argv++;
+ 	    --argc;
+@@ -2355,7 +2371,7 @@ tn(int argc, char *argv[])
+     {
+ 	hostname = hostp;
+ 	memset(&hints, 0, sizeof(hints));
+-	hints.ai_family = PF_UNSPEC;
+	hints.ai_family = family;
+ 	hints.ai_socktype = SOCK_STREAM;
+ 	hints.ai_flags = AI_CANONNAME;
+ 	if (portp == NULL) {
+diff --git a/main.c b/main.c
+index 5fa96e8..599f0af 100644
+--- a/telnet/main.c
+++ b/telnet/main.c
+@@ -80,10 +80,10 @@ usage(void)
+ 	fprintf(stderr, "Usage: %s %s%s%s%s\n",
+ 	    prompt,
+ #ifdef	AUTHENTICATION
+-	    "[-8] [-E] [-K] [-L] [-S tos] [-X atype] [-a] [-c] [-d] [-e char]",
+	    "[-4] [-6] [-8] [-E] [-K] [-L] [-S tos] [-X atype] [-a] [-c] [-d] [-e char]",
+ 	    "\n\t[-k realm] [-l user] [-f/-F] [-n tracefile] [-b hostalias ] ",
+ #else
+-	    "[-8] [-E] [-L] [-S tos] [-a] [-c] [-d] [-e char] [-l user]",
+	    "[-4] [-6] [-8] [-E] [-L] [-S tos] [-a] [-c] [-d] [-e char] [-l user]",
+ 	    "\n\t[-n tracefile] [-b hostalias ] ",
+ #endif
+ #if defined(TN3270) && defined(unix)
+@@ -116,6 +116,7 @@ main(int argc, char *argv[])
+ #endif
+ 	int ch;
+ 	char *user, *alias;
+	int family;
+ #ifdef	FORWARD
+ 	extern int forward_flags;
+ #endif	/* FORWARD */
+@@ -130,7 +131,6 @@ main(int argc, char *argv[])
+ 		prompt = argv[0];
+ 
+ 	user = alias = NULL;
+-
+ 	rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
+ 
+ 	/* 
+@@ -139,9 +139,19 @@ main(int argc, char *argv[])
+ 	 * passed 
+ 	 */
+ 	autologin = -1;
+-
+-	while ((ch = getopt(argc, argv, "78DEKLS:X:ab:cde:fFk:l:n:rt:x")) != -1) {
+	family = 0;
+	while ((ch = getopt(argc, argv, "4678DEKLS:X:ab:cde:fFk:l:n:rt:x")) != -1) {
+ 		switch(ch) {
+		case '4':
+			family = AF_INET;
+			break;
+		case '6':
+#ifdef AF_INET6
+			family = AF_INET6;
+#else
+			fputs("IPv6 unsupported\n", stderr); 
+#endif
+			break;
+ 		case '8':
+ 			binary = 3;	/* send TELNET BINARY option for output and input */
+ 			break;
+@@ -340,6 +350,9 @@ main(int argc, char *argv[])
+ 			*argp++ = "-b";
+ 			*argp++ = alias;
+ 		}
+		if (family) {
+			*argp++ = family == AF_INET ? "-4" : "-6";
+		}
+ 		*argp++ = argv[0];		/* host */
+ 		if (argc > 1)
+ 			*argp++ = argv[1];	/* port */
+diff --git a/telnet.1 b/telnet.1
+index 50015a6..f30e034 100644
+--- a/telnet/telnet.1
+++ b/telnet/telnet.1
+@@ -44,7 +44,7 @@
+ protocol
+ .Sh SYNOPSIS
+ .Nm telnet
+-.Op Fl 8EFKLacdfrx
+.Op Fl 468EFKLacdfrx
+ .Op Fl X Ar authtype
+ .Op Fl b Ar hostalias
+ .Op Fl e Ar escapechar
+@@ -76,6 +76,10 @@ command with those arguments.
+ .Pp
+ The options are as follows:
+ .Bl -tag -width Ds
+.It Fl 4
+Force IPv4 address resolution.
+.It Fl 6
+Force IPv6 address resolution.
+ .It Fl 7
+ Strip 8th bit on input and output. Telnet is 8-bit clean by default but doesn't send the TELNET BINARY option unless forced.
+ .It Fl 8
--- a/telnet-0.17-issue.patch
+++ b/telnet-0.17-issue.patch
@ -0,0 +1,81 @@
+--- netkit-telnet-0.17/telnetd/utility.c.issue	Sun Dec 12 09:59:45 1999
+++ netkit-telnet-0.17/telnetd/utility.c	Wed Jul 18 11:14:11 2001
+@@ -460,13 +460,13 @@
+ 	putlocation = where;
+ 
+ 	while (*cp) {
+-		if (*cp != '%') {
+		if (*cp != '%' && *cp != '\\') {
+ 			putchr(*cp++);
+ 			continue;
+ 		}
+ 		switch (*++cp) {
+ 
+-		case 't':
+		case 'l':
+ 			slash = strrchr(line, '/');
+ 			if (slash == NULL)
+ 				putstr(line);
+@@ -474,21 +474,28 @@
+ 				putstr(slash+1);
+ 			break;
+ 
+		case 'n':
+ 		case 'h':
+ 			putstr(editedhost);
+ 			break;
+ 
+		case 't':
+ 		case 'd':
+ 			(void)time(&t);
+ 			(void)strftime(db, sizeof(db), fmtstr, localtime(&t));
+ 			putstr(db);
+ 			break;
+ 
+		case '\\':
+			putchr('\\');
+			break;
+			  
+ 		case '%':
+ 			putchr('%');
+ 			break;
+ 
+ 		case 'D':
+		case 'o':
+ 			{
+ 				char	buff[128];
+ 
+@@ -515,7 +522,7 @@
+ 							c = fgetc(fp);
+ 						} while (c != EOF && c != '\n');
+ 						continue;
+-					} else if (c == '%') {
+					} else if (c == '%' || c == '\\') {
+ 						buff[0] = c;
+ 						c = fgetc(fp);
+ 						if (c == EOF) break;
+--- netkit-telnet-0.17/telnetd/issue.net.5.issue	Sun Jul 30 19:57:09 2000
+++ netkit-telnet-0.17/telnetd/issue.net.5	Wed Jul 18 11:03:09 2001
+@@ -15,16 +15,17 @@
+ .Pa /etc/issue.net
+ is a text file which contains a message or system identification to be
+ printed before the login prompt of a telnet session. It may contain
+-various `%-char' sequences. The following sequences are supported by
+various `%-char' (or, alternatively, '\\-char') sequences. The following
+sequences are supported by
+ .Ic telnetd :
+ .Bl -tag -offset indent -compact -width "abcde"
+-.It %t
+.It %l
+ - show the current tty
+-.It %h
+.It %h, %n
+ - show the system node name (FQDN)
+-.It %D
+.It %D, %o
+ - show the name of the NIS domain
+-.It %d
+.It %d, %t
+ - show the current time and date
+ .It %s
+ - show the name of the operating system
--- a/telnet-0.17-pek.patch
+++ b/telnet-0.17-pek.patch
@ -0,0 +1,37 @@
+diff -u a/telnet/commands.c b/telnet.new/commands.c
+--- a/telnet/commands.c	Sat Sep  1 12:55:18 2001
+++ b/telnet.new/commands.c	Sat Sep  1 12:54:36 2001
+@@ -2354,6 +2354,7 @@
+ 	hints.ai_flags = AI_CANONNAME;
+ 	if (portp == NULL) {
+ 		portp = "telnet";
+		telnetport = 1;
+ 	} else if (*portp == '-') {
+ 		portp++;
+ 		telnetport = 1;
+@@ -2397,7 +2398,6 @@
+ 	    if (error) {
+ 	        warn("%s: %s", aliasp, gai_strerror(error));
+ 	        close(net);
+-	        freeaddrinfo(ares);
+ 	        continue;
+ 	    }
+ 	    if (bind(net, ares->ai_addr, ares->ai_addrlen) < 0) {
+@@ -2414,7 +2414,7 @@
+ 		perror("setsockopt (IP_OPTIONS)");
+ #endif
+ #if	defined(IPPROTO_IP) && defined(IP_TOS)
+-	{
+	if (res->ai_family == AF_INET) {
+ # if	defined(HAS_GETTOS)
+ 	    struct tosent *tp;
+ 	    if (tos < 0 && (tp = gettosbyname("telnet", "tcp")))
+@@ -2438,7 +2438,7 @@
+ 	    char hbuf[NI_MAXHOST];
+ 	    
+ 	    if (getnameinfo(res->ai_addr, res->ai_addrlen, hbuf, sizeof(hbuf),
+-		    NULL, 0, NI_NUMERICHOST) != 0) {
+		    NULL, 0, niflags) != 0) {
+ 	        strcpy(hbuf, "(invalid)");
+ 	    }
+ 	    fprintf(stderr, "telnet: connect to address %s: %s\n", hbuf,
--- a/telnet-0.17-sa-01-49.patch
+++ b/telnet-0.17-sa-01-49.patch
@ -0,0 +1,208 @@
+diff -up netkit-telnet-0.17/telnetd/ext.h.sa-01-49 netkit-telnet-0.17/telnetd/ext.h
+--- netkit-telnet-0.17/telnetd/ext.h.sa-01-49	1999-12-12 15:59:44.000000000 +0100
+++ netkit-telnet-0.17/telnetd/ext.h	2011-01-20 22:39:54.000000000 +0100
+@@ -86,7 +86,10 @@ extern char *neturg;		/* one past last b
+ extern int pcc, ncc;
+ 
+ /* printf into netobuf */
+-void netoprintf(const char *fmt, ...) __attribute((format (printf, 1, 2))); 
+/* void netoprintf(const char *fmt, ...) __attribute((format (printf, 1, 2))); */
+#define netoprintf output_data
+int	output_data(const char *, ...) __attribute((format (printf, 1, 2))); 
+void	output_datalen(const char *, int);
+ 
+ extern int pty, net;
+ extern char *line;
+@@ -182,7 +185,10 @@ void tty_setsofttab(int);
+ void tty_tspeed(int);
+ void willoption(int);
+ void wontoption(int);
+
+#if 0
+ void writenet(unsigned char *, int);
+#endif
+ 
+ #if defined(ENCRYPT)
+ extern void (*encrypt_output)(unsigned char *, int);
+diff -up netkit-telnet-0.17/telnetd/slc.c.sa-01-49 netkit-telnet-0.17/telnetd/slc.c
+--- netkit-telnet-0.17/telnetd/slc.c.sa-01-49	1999-12-12 15:59:44.000000000 +0100
+++ netkit-telnet-0.17/telnetd/slc.c	2011-01-20 22:39:54.000000000 +0100
+@@ -183,7 +183,7 @@ int end_slc(unsigned char **bufp) {
+ 	else {
+ 	    snprintf(slcbuf+slcoff, sizeof(slcbuf)-slcoff, "%c%c", IAC, SE);
+ 	    slcoff += 2;
+-	    writenet(slcbuf, slcoff);
+	    output_datalen(slcbuf, slcoff);
+ 	    netflush();  /* force it out immediately */
+ 	}
+     }
+diff -up netkit-telnet-0.17/telnetd/state.c.sa-01-49 netkit-telnet-0.17/telnetd/state.c
+--- netkit-telnet-0.17/telnetd/state.c.sa-01-49	1999-12-12 20:41:44.000000000 +0100
+++ netkit-telnet-0.17/telnetd/state.c	2011-01-20 22:43:34.000000000 +0100
+@@ -37,6 +37,7 @@
+ char state_rcsid[] = 
+   "$Id: state.c,v 1.12 1999/12/12 19:41:44 dholland Exp $";
+ 
+#include <stdarg.h>
+ #include "telnetd.h"
+ 
+ int not42 = 1;
+@@ -1365,7 +1366,7 @@ void send_status(void) {
+     ADD(IAC);
+     ADD(SE);
+ 
+-    writenet(statusbuf, ncp - statusbuf);
+    output_datalen(statusbuf, ncp - statusbuf);
+     netflush();	/* Send it on its way */
+ 
+     DIAG(TD_OPTIONS, {printsub('>', statusbuf, ncp - statusbuf); netflush();});
+diff -up netkit-telnet-0.17/telnetd/termstat.c.sa-01-49 netkit-telnet-0.17/telnetd/termstat.c
+--- netkit-telnet-0.17/telnetd/termstat.c.sa-01-49	1999-12-12 15:59:45.000000000 +0100
+++ netkit-telnet-0.17/telnetd/termstat.c	2011-01-20 22:39:54.000000000 +0100
+@@ -128,7 +128,6 @@ static int _terminit = 0;
+ 	void
+ localstat()
+ {
+-	void netflush();
+ 	int need_will_echo = 0;
+ 
+ 	/*
+diff -up netkit-telnet-0.17/telnetd/utility.c.sa-01-49 netkit-telnet-0.17/telnetd/utility.c
+--- netkit-telnet-0.17/telnetd/utility.c.sa-01-49	2011-01-20 22:39:54.000000000 +0100
+++ netkit-telnet-0.17/telnetd/utility.c	2011-01-20 22:48:02.000000000 +0100
+@@ -38,8 +38,10 @@ char util_rcsid[] = 
+   "$Id: utility.c,v 1.11 1999/12/12 14:59:45 dholland Exp $";
+ 
+ #define PRINTOPTIONS
+#define _GNU_SOURCE
+ 
+ #include <stdarg.h>
+#include <stdio.h>
+ #include <sys/utsname.h>
+ 
+ #ifdef AUTHENTICATE
+@@ -52,6 +54,53 @@ char util_rcsid[] = 
+  * utility functions performing io related tasks
+  */
+ 
+/*
+ * This function appends data to nfrontp and advances nfrontp.
+ * Returns the number of characters written altogether (the
+ * buffer may have been flushed in the process).
+ */
+
+int
+output_data(const char *format, ...)
+{
+	va_list args;
+	int len;
+	char *buf;
+
+	va_start(args, format);
+	if ((len = vasprintf(&buf, format, args)) == -1)
+		return -1;
+	output_datalen(buf, len);
+	va_end(args);
+	free(buf);
+	return (len);
+}
+
+void
+output_datalen(const char *buf, int len)
+{
+	int remaining, copied;
+	
+	remaining = BUFSIZ - (nfrontp - netobuf);
+	while (len > 0) {
+		/* Free up enough space if the room is too low*/
+		if ((len > BUFSIZ ? BUFSIZ : len) > remaining) {
+			netflush();
+			remaining = BUFSIZ - (nfrontp - netobuf);
+		}
+
+		/* Copy out as much as will fit */
+		copied = remaining > len ? len : remaining;
+		memmove(nfrontp, buf, copied);
+		nfrontp += copied;
+		len -= copied;
+		remaining -= copied;
+		buf += copied;
+	}
+	return;
+}
+
+/**
+ void
+ netoprintf(const char *fmt, ...)
+ {
+@@ -67,7 +116,7 @@ netoprintf(const char *fmt, ...)
+       va_end(ap);
+ 
+       if (len<0 || len==maxsize) {
+-	 /* didn't fit */
+		/ * did not fit * /
+ 	 netflush();
+       }
+       else {
+@@ -76,6 +125,7 @@ netoprintf(const char *fmt, ...)
+    }
+    nfrontp += len;
+ }
+*/
+ 
+ /*
+  * ttloop
+@@ -273,10 +323,15 @@ netflush(void)
+     int n;
+ 
+     if ((n = nfrontp - nbackp) > 0) {
+
+#if 0
+	/* XXX This causes output_data() to recurse and die */
+ 	DIAG(TD_REPORT,
+ 	    { netoprintf("td: netflush %d chars\r\n", n);
+ 	      n = nfrontp - nbackp;  /* update count */
+ 	    });
+#endif
+
+ #if	defined(ENCRYPT)
+ 	if (encrypt_output) {
+ 		char *s = nclearto ? nclearto : nbackp;
+@@ -310,11 +365,14 @@ netflush(void)
+ 	    }
+ 	}
+     }
+-    if (n < 0) {
+-	if (errno == EWOULDBLOCK || errno == EINTR)
+-		return;
+-	cleanup(0);
+-    }
+
+	 if (n == -1) {
+		if (errno == EWOULDBLOCK || errno == EINTR)
+		  return;
+		cleanup(0);
+		/* NOTREACHED */
+	 }
+
+     nbackp += n;
+ #if	defined(ENCRYPT)
+     if (nbackp > nclearto)
+@@ -332,7 +390,7 @@ netflush(void)
+     return;
+ }  /* end of netflush */
+ 
+-
+#if 0
+ /*
+  * writenet
+  *
+@@ -355,7 +413,7 @@ void writenet(register unsigned char *pt
+ 	nfrontp += len;
+ 
+ }  /* end of writenet */
+-
+#endif
+ 
+ /*
+  * miscellaneous functions doing a variety of little jobs follow ...
--- a/telnet-client-cvs.patch
+++ b/telnet-client-cvs.patch
--- a/telnet-client.tar.gz
+++ b/telnet-client.tar.gz
--- a/telnet-gethostbyname.patch
+++ b/telnet-gethostbyname.patch
@ -0,0 +1,48 @@
+--- netkit-telnet-0.17/telnet/commands.c.old	2006-04-30 10:24:49.000000000 -0700
+++ netkit-telnet-0.17/telnet/commands.c	2006-04-30 10:37:10.000000000 -0700
+@@ -1669,9 +1669,15 @@
+ 
+ 		/* If this is not the full name, try to get it via DNS */
+ 		if (strchr(hbuf, '.') == 0) {
+-			struct hostent *he = gethostbyname(hbuf);
+-			if (he != 0)
+-				strncpy(hbuf, he->h_name, sizeof hbuf-1);
+			struct addrinfo hints;
+			struct addrinfo *res;
+			memset (&hints, '\0', sizeof (hints));
+			hints.ai_flags = AI_V4MAPPED | AI_ADDRCONFIG | AI_CANONNAME;
+			if (getaddrinfo (hbuf, NULL, &hints, &res) == 0) {
+				if (res->ai_canonname != NULL)
+					strncpy(hbuf, res->ai_canonname, sizeof hbuf-1);
+				freeaddrinfo (res);
+			}
+ 			hbuf[sizeof hbuf-1] = '\0';
+ 		}
+ 
+@@ -2832,17 +2838,15 @@
+ 		if (!c)
+ 			cp2 = 0;
+ 
+-		if ((tmp = inet_addr(cp)) != -1) {
+-			sin_addr.s_addr = tmp;
+-		} else if ((host = gethostbyname(cp))) {
+-#if	defined(h_addr)
+-			memmove((caddr_t)&sin_addr,
+-				host->h_addr_list[0], 
+-				sizeof(sin_addr));
+-#else
+-			memmove((caddr_t)&sin_addr, host->h_addr, 
+-				sizeof(sin_addr));
+-#endif
+		struct addrinfo hints;
+		memset (&hints, '\0', sizeof (hints));
+		// XXX The code here seems to allow only IPv4 addresses.
+		hints.ai_family = AF_INET;
+		hints.ai_flags = AI_ADDRCONFIG;
+		struct addrinfo *aires;
+		if (getaddrinfo (cp, NULL, &hints, &aires) == 0) {
+			sin_addr = ((struct sockaddr_in *) aires->ai_addr)->sin_addr;
+			freeaddrinfo (aires);
+ 		} else {
+ 			*cpp = cp;
+ 			return(0);
--- a/telnet-rh674942.patch
+++ b/telnet-rh674942.patch
@ -0,0 +1,47 @@
+--- netkit-telnet-0.17/telnetd/telnetd.c.orig	2011-01-31 12:05:37.942942871 -0600
+++ netkit-telnet-0.17/telnetd/telnetd.c	2011-01-31 18:20:22.400743499 -0600
+@@ -82,6 +82,7 @@ char	ptyibuf2[BUFSIZ];
+ int	hostinfo = 1;			/* do we print login banner? */
+ 
+ int debug = 0;
+int debugsix = 0;
+ int keepalive = 1;
+ char *loginprg = _PATH_LOGIN;
+ char *progname;
+@@ -150,8 +151,11 @@ main(int argc, char *argv[], char *env[]
+ #endif /* BFTPDAEMON */
+ 
+ 		case 'd':
+-			if (strcmp(optarg, "ebug") == 0) {
+			if (strncmp(optarg, "ebug", 4) == 0) {
+ 				debug++;
+				if (strncmp(optarg, "ebug6", 5) == 0) {
+					debugsix++;
+				}
+ 				break;
+ 			}
+ 			usage();
+@@ -271,6 +275,8 @@ main(int argc, char *argv[], char *env[]
+ 	        hints.ai_socktype = SOCK_STREAM;
+ 	        hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
+ 	        hints.ai_protocol = IPPROTO_TCP;
+		if (debugsix)
+			hints.ai_family = AF_INET6;
+ 
+ 	        if (argc == 0) {
+ 	            if (getaddrinfo(NULL, "telnet", &hints, &ai) != 0) {
+@@ -380,12 +386,12 @@ usage(void)
+ {
+ 	fprintf(stderr, "Usage: telnetd");
+ #ifdef	AUTHENTICATE
+-	fprintf(stderr, " [-a (debug|other|user|valid|off)]\n\t");
+	fprintf(stderr, " [-a (debug|debug6|other|user|valid|off)]\n\t");
+ #endif
+ #ifdef BFTPDAEMON
+ 	fprintf(stderr, " [-B]");
+ #endif
+-	fprintf(stderr, " [-debug]");
+	fprintf(stderr, " [-debug|-debug6]");
+ #ifdef DIAGNOSTICS
+ 	fprintf(stderr, " [-D (options|report|exercise|netdata|ptydata)]\n\t");
+ #endif
--- a/telnet-rh678324.patch
+++ b/telnet-rh678324.patch
@ -0,0 +1,21 @@
+diff -up netkit-telnet-0.17/telnetd/telnetd.c.rh678324 netkit-telnet-0.17/telnetd/telnetd.c
+--- netkit-telnet-0.17/telnetd/telnetd.c.rh678324	2011-06-28 14:51:09.996726296 +0200
+++ netkit-telnet-0.17/telnetd/telnetd.c	2011-06-28 14:52:38.212726283 +0200
+@@ -92,7 +92,7 @@ extern void usage(void);
+ int
+ main(int argc, char *argv[], char *env[])
+ {
+-	struct sockaddr from;
+	struct sockaddr_storage from;
+ 	int on = 1;
+ 	socklen_t fromlen;
+ 	register int ch;
+@@ -344,7 +344,7 @@ main(int argc, char *argv[], char *env[]
+ 
+ 	openlog("telnetd", LOG_PID | LOG_ODELAY, LOG_DAEMON);
+ 	fromlen = sizeof (from);
+-	if (getpeername(s, &from, &fromlen) < 0) {
+	if (getpeername(s, (struct sockaddr *)&from, &fromlen) < 0) {
+ 		fprintf(stderr, "%s: ", progname);
+ 		perror("getpeername");
+ 		_exit(1);
--- a/telnet-rh704604.patch
+++ b/telnet-rh704604.patch
@ -0,0 +1,24 @@
+--- netkit-telnet-0.17/telnet/commands.c.hostalias	2011-07-11 08:07:22.000000000 -0400
+++ netkit-telnet-0.17/telnet/commands.c	2011-07-11 08:10:12.131039660 -0400
+@@ -2400,17 +2400,21 @@ 
+ 	    ahints.ai_family = PF_UNSPEC;
+ 	    ahints.ai_socktype = SOCK_STREAM;
+ 	    ahints.ai_flags = AI_PASSIVE;
+ 	    error = getaddrinfo(aliasp, "0", &ahints, &ares);
+ 	    if (error) {
+	        printf ("Couldn't get address for %s\n", aliasp);
+ 	        warn("%s: %s", aliasp, gai_strerror(error));
+ 	        close(net);
+		net = -1;
+ 	        continue;
+ 	    }
+ 	    if (bind(net, ares->ai_addr, ares->ai_addrlen) < 0) {
+	        printf ("Couldn't bind to %s\n", aliasp);
+ 	        perror(aliasp);
+                 (void) close(net);   /* dump descriptor */
+		net = -1;
+ 		freeaddrinfo(ares);
+ 		continue;
+             }
+ 	    freeaddrinfo(ares);
+         }
--- a/telnet-rh825946.patch
+++ b/telnet-rh825946.patch
@ -0,0 +1,25 @@
+diff -up netkit-telnet-0.17/telnetd/sys_term.c.rh825946 netkit-telnet-0.17/telnetd/sys_term.c
+--- netkit-telnet-0.17/telnetd/sys_term.c.rh825946	1999-12-17 15:28:47.000000000 +0100
+++ netkit-telnet-0.17/telnetd/sys_term.c	2012-06-14 14:05:30.538342755 +0200
+@@ -723,6 +723,9 @@ void cleanup(int sig) {
+     char *p;
+     (void)sig;
+ 
+    /* to avoid a race for wtmp lock */
+    signal(SIGCHLD, SIG_IGN);
+
+     p = line + sizeof("/dev/") - 1;
+     if (logout(p)) logwtmp(p, "", "");
+ #ifdef PARANOID_TTYS
+diff -up netkit-telnet-0.17/telnetd/telnetd.c.rh825946 netkit-telnet-0.17/telnetd/telnetd.c
+--- netkit-telnet-0.17/telnetd/telnetd.c.rh825946	2012-06-14 14:04:42.000000000 +0200
+++ netkit-telnet-0.17/telnetd/telnetd.c	2012-06-14 14:06:01.547291404 +0200
+@@ -1147,8 +1147,6 @@ void telnet(int f, int p)
+ 	if (FD_ISSET(p, &obits) && (pfrontp - pbackp) > 0)
+ 	    ptyflush();
+     }
+-    /* to avoid a race for wtmp lock */
+-    signal(SIGCHLD, SIG_IGN);
+     cleanup(0);
+ }  /* end of telnet */
+ 	
--- a/telnet.socket
+++ b/telnet.socket
@ -0,0 +1,10 @@
+[Unit]
+Description=Telnet Server Activation Socket
+Documentation=man:telnetd(8)
+
+[Socket]
+ListenStream=23
+Accept=true
+
+[Install]
+WantedBy=sockets.target
--- a/telnet.spec
+++ b/telnet.spec
@ -0,0 +1,105 @@
+Name:             telnet
+Epoch:            1
+Version:          0.17
+Release:          75
+Summary:          Client and Server programs for the Telnet communication protocol
+License:          BSD
+Url:              http://web.archive.org/web/20070819111735/www.hcs.harvard.edu/~dholland/computers/old-netkit.html
+Source0:          ftp://ftp.uk.linux.org/pub/linux/Networking/netkit/netkit-telnet-%{version}.tar.gz
+#sources form fedora/redhat
+Source1:          telnet-client.tar.gz
+Source2:          telnet@.service
+Source3:          telnet.socket
+
+#patches from fedora/redhat repositories
+Patch0001:        telnet-client-cvs.patch
+Patch0002:        telnetd-0.17.diff
+Patch0003:        telnet-0.17-env.patch
+Patch0004:        telnet-0.17-pek.patch
+Patch0005:        telnet-0.17-issue.patch
+Patch0006:        telnet-0.17-sa-01-49.patch
+Patch0007:        telnet-0.17-8bit.patch
+Patch0008:        telnet-0.17-argv.patch
+Patch0009:        telnet-0.17-conf.patch
+Patch0010:        telnet-0.17-cleanup_race.patch
+Patch0011:        telnetd-0.17-pty_read.patch
+Patch0012:        telnet-0.17-CAN-2005-468_469.patch
+Patch0013:        telnet-gethostbyname.patch
+Patch0014:        netkit-telnet-0.17-ipv6.diff
+Patch0015:        netkit-telnet-0.17-nodns.patch
+Patch0016:        telnet-0.17-errno_test_sys_bsd.patch
+Patch0017:        netkit-telnet-0.17-reallynodns.patch
+Patch0018:        telnet-rh678324.patch
+Patch0019:        telnet-rh674942.patch
+Patch0020:        telnet-rh704604.patch
+Patch0021:        telnet-rh825946.patch
+Patch0022:        telnet-0.17-force-ipv6-ipv4.patch
+Patch0023:        netkit-telnet-0.17-core-dump.patch
+Patch0024:        netkit-telnet-0.17-gcc7.patch
+Patch0025:        netkit-telnet-0.17-manpage.patch
+Patch0026:        netkit-telnet-0.17-telnetrc.patch
+
+BuildRequires:    gcc-c++ ncurses-devel systemd
+Requires:         systemd
+Provides:         %{name}-server
+Obsoletes:        %{name}-server
+
+%description
+Telnet is an application protocol used on the Internet or local area
+network to provide a bidirectional interactive text-oriented communication
+facility using a virtual terminal connection. The package includes a remote
+login client program for telnet and a server daemon.
+
+%package help
+Summary: Help package for %{name}, including doc and man files.
+
+%description help
+This is the help package for %{name}. It includes a doc file and
+some man files.
+
+%prep
+%setup -q -n netkit-telnet-%{version}
+mv -f telnet telnet-NETKIT
+
+%autosetup -T -D -a 1 -n netkit-telnet-%{version} -p1
+
+%build
+%{_configure} --with-c-compiler=gcc --prefix=%{_prefix} --exec-prefix=%{_exec_prefix}
+sed -i 's,-O2,\$(CC_FLAGS),;s,LDFLAGS=.*,LDFLAGS=\$(LD_FLAGS),;s,^MANDIR=.*$,MANDIR=%{_mandir},' MCONFIG
+sed -i 's,install [+-]s,install,g' ./telnet/GNUmakefile ./telnetd/Makefile ./telnetlogin/Makefile ./telnet-NETKIT/Makefile
+
+%make_build CC_FLAGS="$RPM_OPT_FLAGS -fpie" LD_FLAGS="$LD_FLAGS -z now -pie"
+
+%install
+install -d %{buildroot}{%{_bindir},%{_sbindir},%{_mandir}/man{1,5,8}}
+make install INSTALLROOT=%{buildroot}
+
+install -Dpm644 %{SOURCE2} %{buildroot}%{_unitdir}/telnet@.service
+install -pm644 %{SOURCE3} %{buildroot}%{_unitdir}/telnet.socket
+
+%post
+%systemd_post telnet.socket
+
+%preun
+%systemd_preun telnet.socket
+
+%postun
+%systemd_postun_with_restart telnet.socket
+
+%files
+%defattr(-,root,root,-)
+%{_unitdir}/*
+%{_sbindir}/in.telnetd
+%{_bindir}/telnet
+
+%files help
+%defattr(-,root,root,-)
+%doc README
+%{_mandir}/man5/issue.net.5*
+%{_mandir}/man8/in.telnetd.8*
+%{_mandir}/man8/telnetd.8*
+%{_mandir}/man1/telnet.1*
+
+%changelog
+* Sat Sep 14 2019 huzhiyu<huzhiyu1@huawei.com> - 1:0.17-75
+- Package init
--- a/telnet@.service
+++ b/telnet@.service
@ -0,0 +1,7 @@
+[Unit]
+Description=Telnet Server
+After=local-fs.target
+
+[Service]
+ExecStart=-/usr/sbin/in.telnetd
+StandardInput=socket
--- a/telnetd-0.17-pty_read.patch
+++ b/telnetd-0.17-pty_read.patch
@ -0,0 +1,25 @@
+--- a/telnetd/telnetd.c	2005-01-19 14:37:25.000000000 +0000
+++ b/telnetd/telnetd.c.new	2005-01-19 14:48:12.000000000 +0000
+@@ -697,6 +697,7 @@
+     int on = 1;
+     char *HE;
+     const char *IM;
+    int pty_read_ok = 0; /* track whether the pty read has worked yet */
+ 
+     /*
+      * Initialize the slc mapping table.
+@@ -1016,12 +1017,13 @@
+ 	     * off the master side before the slave side is
+ 	     * opened, we get EIO.
+ 	     */
+-	    if (pcc < 0 && (errno == EWOULDBLOCK || errno == EIO)) {
+	    if (pcc < 0 && (errno == EWOULDBLOCK || (errno == EIO && pty_read_ok == 0))) {
+ 		pcc = 0;
+ 	    } 
+ 	    else {
+ 		if (pcc <= 0)
+ 		    break;
+		pty_read_ok = 1;	/* mark connection up for read */
+ #ifdef	LINEMODE
+ 				/*
+ 				 * If ioctl from pty, pass it through net
--- a/telnetd-0.17.diff
+++ b/telnetd-0.17.diff
@ -0,0 +1,21 @@
+--- a/telnetd/telnetd.c	Thu Apr 13 00:36:12 2000
+++ b/telnetd.new/telnetd.c	Sun Mar 11 03:10:43 2001
+@@ -44,7 +44,7 @@
+ #include "../version.h"
+ 
+ #include <netdb.h>
+-#include <termcap.h>
+#include <ncurses/termcap.h>
+ #include <netinet/in.h>
+ /* #include <netinet/ip.h> */ /* Don't think this is used at all here */
+ #include <arpa/inet.h>
+--- a/telnetd/defs.h	Mon Aug  2 06:14:03 1999
+++ b/telnetd.new/defs.h	Sun Mar 11 03:28:13 2001
+@@ -56,6 +56,7 @@
+ #include <sys/file.h>
+ #include <sys/stat.h>
+ #include <sys/time.h>
+#include <time.h>
+ #include <sys/ioctl.h>
+ #include <netinet/in.h>
+ #include <arpa/telnet.h>