File telnet-bsd-1.2-no_gethostbyname.patch of Package telnet.26551

Index: telnet/commands.c
===================================================================
--- telnet/commands.c.orig	2005-06-02 10:12:51.000000000 +0200
+++ telnet/commands.c	2009-05-22 01:27:21.108685000 +0200
@@ -1850,9 +1850,16 @@ env_init (void)
       /* 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';
 	}
 
@@ -2919,19 +2926,16 @@ sourceroute (char *arg, char **cpp, int 
 	  }
       if (!c)
 	cp2 = 0;
+		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);
 
-      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
 	}
       else
 	{