1130b656e5
This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/*
|
|
* Copyright 1988 by the Massachusetts Institute of Technology.
|
|
* For copying and distribution information, please see the file
|
|
* <Copyright.MIT>.
|
|
*
|
|
* from: get_phost.c,v 4.6 89/01/23 09:25:40 jtkohl Exp $
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#if 0
|
|
#ifndef lint
|
|
static char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif /* lint */
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include <netdb.h>
|
|
|
|
char *index();
|
|
|
|
/*
|
|
* This routine takes an alias for a host name and returns the first
|
|
* field, lower case, of its domain name. For example, if "menel" is
|
|
* an alias for host officially named "menelaus" (in /etc/hosts), for
|
|
* the host whose official name is "MENELAUS.MIT.EDU", the name "menelaus"
|
|
* is returned.
|
|
*
|
|
* This is done for historical Athena reasons: the Kerberos name of
|
|
* rcmd servers (rlogin, rsh, rcp) is of the form "rcmd.host@realm"
|
|
* where "host"is the lowercase for of the host name ("menelaus").
|
|
* This should go away: the instance should be the domain name
|
|
* (MENELAUS.MIT.EDU). But for now we need this routine...
|
|
*
|
|
* A pointer to the name is returned, if found, otherwise a pointer
|
|
* to the original "alias" argument is returned.
|
|
*/
|
|
|
|
char * krb_get_phost(alias)
|
|
char *alias;
|
|
{
|
|
struct hostent *h;
|
|
char *phost = alias;
|
|
if ((h=gethostbyname(alias)) != (struct hostent *)NULL ) {
|
|
char *p = index( h->h_name, '.' );
|
|
if (p)
|
|
*p = NULL;
|
|
p = phost = h->h_name;
|
|
do {
|
|
if (isupper(*p)) *p=tolower(*p);
|
|
} while (*p++);
|
|
}
|
|
return(phost);
|
|
}
|