Attachment 161807 Details for Bug 253392 – netkit-telnet-0.17-nodns.patch

[patch] netkit-telnet-0.17-nodns.patch

netkit-telnet-0.17-nodns.patch (text/plain), 1.75 KB, created by Jose Plans on 2007-08-18 19:42:21 UTC

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Creator: Jose Plans

Created: 2007-08-18 19:42:21 UTC

Size: 1.75 KB

patch

obsolete

>--- netkit-telnet-0.17/telnetd/telnetd.8.nodns	2000-07-31 01:57:10.000000000 +0200
>+++ netkit-telnet-0.17/telnetd/telnetd.8	2007-04-13 10:58:27.000000000 +0200
>@@ -123,6 +123,8 @@
> .Xr login 1
> program.
> .El
>+.It Fl c
>+This option disables reverse dns checking. Of course that security is lower with this option
> .It Fl D Ar debugmode
> This option may be used for debugging purposes.  This allows
> .Nm telnetd
>--- netkit-telnet-0.17/telnetd/telnetd.c.nodns	2007-04-13 10:49:57.000000000 +0200
>+++ netkit-telnet-0.17/telnetd/telnetd.c	2007-04-13 10:49:57.000000000 +0200
>@@ -83,6 +83,7 @@
> 
> int debug = 0;
> int keepalive = 1;
>+int nodns = 0;
> char *loginprg = _PATH_LOGIN;
> char *progname;
> 
>@@ -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, "cd:a:e:lhnr:I:D:B:sS:a:X:L:")) != EOF) {
> 		switch(ch) {
> 
> #ifdef	AUTHENTICATE
>@@ -147,7 +148,9 @@
> 			bftpd++;
> 			break;
> #endif /* BFTPDAEMON */
>-
>+		case 'c':
>+			nodns++;
>+			break;
> 		case 'd':
> 			if (strcmp(optarg, "ebug") == 0) {
> 				debug++;
>@@ -652,6 +655,9 @@
> 	char namebuf[255];
> 
> 	error = getnameinfo(who, wholen, namebuf, sizeof(namebuf), NULL, 0, 0);
>+
>+	if ((error == EAI_AGAIN) && nodns)
>+		error = getnameinfo(who, wholen, namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
> 	
> 	if (error) {
> 		perror("getnameinfo: localhost");
>@@ -688,7 +694,10 @@
> 		hints.ai_socktype = SOCK_STREAM;
> 		hints.ai_flags = AI_ADDRCONFIG;
> 
>-		gethostname(host_name, sizeof(host_name));
>+		if(nodns)
>+			sprintf(host_name, "localhost", sizeof(host_name));
>+		else
>+			gethostname(host_name, sizeof(host_name));
> 		if ((e = getaddrinfo(host_name, NULL, &hints, &res)) != 0) {
> 			perror("getaddrinfo: localhost");
> 			perror(gai_strerror(e));

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Attachments on bug 253392: 161807 | 185181 | 185191