|
 |
3521ef |
diff --git a/telnetd/telnetd.8 b/telnetd/telnetd.8
|
|
|
3521ef |
index 02b48c7..c72ab76 100644
|
|
|
3521ef |
--- a/telnetd/telnetd.8
|
|
|
3521ef |
+++ b/telnetd/telnetd.8
|
|
|
3521ef |
@@ -42,7 +42,7 @@
|
|
|
3521ef |
protocol server
|
|
|
3521ef |
.Sh SYNOPSIS
|
|
|
3521ef |
.Nm /usr/sbin/in.telnetd
|
|
|
3521ef |
-.Op Fl hnNs
|
|
|
3521ef |
+.Op Fl ihnNs
|
|
|
3521ef |
.Op Fl a Ar authmode
|
|
|
3521ef |
.Op Fl D Ar debugmode
|
|
|
3521ef |
.Op Fl L Ar loginprg
|
|
|
3521ef |
@@ -158,6 +158,10 @@ option may be used to enable encryption debugging code.
|
|
|
3521ef |
.It Fl h
|
|
|
3521ef |
Disables the printing of host-specific information before
|
|
|
3521ef |
login has been completed.
|
|
|
3521ef |
+.It Fl i
|
|
|
3521ef |
+Disable reverse DNS lookups and use the numeric IP address in logs
|
|
|
3521ef |
+and REMOTEHOST environment variable. (-i switch corresponds to
|
|
|
3521ef |
+utilities like last)
|
|
|
3521ef |
.It Fl L Ar loginprg
|
|
|
3521ef |
This option may be used to specify a different login program.
|
|
|
3521ef |
By default,
|
|
|
3521ef |
diff --git a/telnetd/telnetd.c b/telnetd/telnetd.c
|
|
|
3521ef |
index a4988a9..2ac8bc1 100644
|
|
|
3521ef |
--- a/telnetd/telnetd.c
|
|
|
3521ef |
+++ b/telnetd/telnetd.c
|
|
|
3521ef |
@@ -84,6 +84,7 @@ int hostinfo = 1; /* do we print login banner? */
|
|
|
3521ef |
int debug = 0;
|
|
|
3521ef |
int debugsix = 0;
|
|
|
3521ef |
int keepalive = 1;
|
|
|
3521ef |
+int numeric_hosts = 0;
|
|
|
3521ef |
char *loginprg = _PATH_LOGIN;
|
|
|
3521ef |
char *progname;
|
|
|
3521ef |
int lookupself = 1;
|
|
|
3521ef |
@@ -113,7 +114,7 @@ main(int argc, char *argv[], char *env[])
|
|
|
3521ef |
|
|
|
3521ef |
progname = *argv;
|
|
|
3521ef |
|
|
|
3521ef |
- while ((ch = getopt(argc, argv, "d:a:e:lhnr:I:D:B:sS:a:X:L:N")) != EOF) {
|
|
|
3521ef |
+ while ((ch = getopt(argc, argv, "d:a:e:ilhnr:I:D:B:sS:a:X:L:N")) != EOF) {
|
|
|
3521ef |
switch(ch) {
|
|
|
3521ef |
|
|
|
3521ef |
#ifdef AUTHENTICATE
|
|
|
3521ef |
@@ -196,6 +197,14 @@ main(int argc, char *argv[], char *env[])
|
|
|
3521ef |
break;
|
|
|
3521ef |
#endif /* AUTHENTICATE */
|
|
|
3521ef |
|
|
|
3521ef |
+ /*
|
|
|
3521ef |
+ * Use ip address instead of hostname when
|
|
|
3521ef |
+ * calling login process.
|
|
|
3521ef |
+ */
|
|
|
3521ef |
+ case 'i':
|
|
|
3521ef |
+ numeric_hosts = 1;
|
|
|
3521ef |
+ break;
|
|
|
3521ef |
+
|
|
|
3521ef |
case 'h':
|
|
|
3521ef |
hostinfo = 0;
|
|
|
3521ef |
break;
|
|
|
3521ef |
@@ -663,10 +672,12 @@ doit(struct sockaddr *who, socklen_t wholen)
|
|
|
3521ef |
int error = -1;
|
|
|
3521ef |
char namebuf[255];
|
|
|
3521ef |
|
|
|
3521ef |
- error = getnameinfo(who, wholen, namebuf, sizeof(namebuf), NULL, 0, 0);
|
|
|
3521ef |
+ /* if we don't want hostname '-i', skip this call to getnameinfo */
|
|
|
3521ef |
+ if (numeric_hosts == 0)
|
|
|
3521ef |
+ error = getnameinfo(who, wholen, namebuf, sizeof(namebuf), NULL, 0, 0);
|
|
|
3521ef |
|
|
|
3521ef |
/* if we can't get a hostname now, settle for an address */
|
|
|
3521ef |
- if(error == EAI_AGAIN)
|
|
|
3521ef |
+ if(error == EAI_AGAIN || numeric_hosts != 0)
|
|
|
3521ef |
error = getnameinfo(who, wholen, namebuf, sizeof(namebuf),
|
|
|
3521ef |
NULL, 0, NI_NUMERICHOST);
|
|
|
3521ef |
|