Attachment 279 Details for Bug 549 – Disable reverse lookups in canohost.c when utmp_len == 0

[patch] Disable reverse lookups in canohost.c when utmp_len == 0

openssh-revlookup.patch (text/plain), 1.49 KB, created by Darren Tucker on 2003-05-03 09:16:02 AEST

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Creator: Darren Tucker

Created: 2003-05-03 09:16:02 AEST

Size: 1.49 KB

patch

obsolete

>Index: canohost.c
>===================================================================
>RCS file: /usr/local/src/security/openssh/cvs/openssh_cvs/canohost.c,v
>retrieving revision 1.34
>diff -u -r1.34 canohost.c
>--- canohost.c	9 Apr 2003 10:59:48 -0000	1.34
>+++ canohost.c	2 May 2003 23:14:41 -0000
>@@ -19,6 +19,8 @@
> #include "log.h"
> #include "canohost.h"
> 
>+int do_reverse_lookups = 1;
>+
> static void check_ip_options(int, char *);
> 
> /*
>@@ -77,7 +79,8 @@
> 
> 	debug3("Trying to reverse map address %.100s.", ntop);
> 	/* Map the IP address to a host name. */
>-	if (getnameinfo((struct sockaddr *)&from, fromlen, name, sizeof(name),
>+	if (do_reverse_lookups && 
>+	    getnameinfo((struct sockaddr *)&from, fromlen, name, sizeof(name),
> 	    NULL, 0, NI_NAMEREQD) != 0) {
> 		/* Host name not found.  Use ip address. */
> #if 0
>Index: sshd.c
>===================================================================
>RCS file: /usr/local/src/security/openssh/cvs/openssh_cvs/sshd.c,v
>retrieving revision 1.237
>diff -u -r1.237 sshd.c
>--- sshd.c	9 Apr 2003 10:59:50 -0000	1.237
>+++ sshd.c	2 May 2003 23:15:58 -0000
>@@ -804,6 +804,7 @@
> {
> 	extern char *optarg;
> 	extern int optind;
>+	extern int do_reverse_lookups;
> 	int opt, sock_in = 0, sock_out = 0, newsock, j, i, fdsetsz, on = 1;
> 	pid_t pid;
> 	socklen_t fromlen;
>@@ -928,6 +929,8 @@
> 				fprintf(stderr, "Invalid utmp length.\n");
> 				exit(1);
> 			}
>+			if (utmp_len == 0)
>+				do_reverse_lookups = 0;
> 			break;
> 		case 'o':
> 			if (process_server_config_line(&options, optarg,

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Attachments on bug 549: 279