Attachment 185181 Details for Bug 253392 – Fix use of ipv6 name lookups

[patch] Fix use of ipv6 name lookups

netkit-telnet-0.17-nodns.patch (text/plain), 1.33 KB, created by Bryn M. Reeves on 2007-09-03 11:30:08 UTC

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Creator: Bryn M. Reeves

Created: 2007-09-03 11:30:08 UTC

Size: 1.33 KB

patch

obsolete

>diff -Nurp netkit-telnet-0.17.orig/telnetd/telnetd.c netkit-telnet-0.17/telnetd/telnetd.c
>--- netkit-telnet-0.17.orig/telnetd/telnetd.c	2007-03-13 16:31:20.000000000 +0000
>+++ netkit-telnet-0.17/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) {
>+				perror("getaddrinfo: localhost");
>+				perror(gai_strerror(e));
>+				exit(1);
>+			}
> 		}
>-		freeaddrinfo(res);
>+		if(res)
>+			freeaddrinfo(res);
> 	}
> 
> #if	defined(AUTHENTICATE) || defined(ENCRYPT)

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Attachments on bug 253392: 161807 | 185181 | 185191