Added support for autoconf

The following rules apply to the initial banner message printed by telnetd:

if libc contains cgetent and the "default" entry in /etc/gettytab
defines an im - use that.

else if configured with a specific default im (--enable-default-im) use that

else use a sensible default "systemname os-release (hostname) (ttyname)"

The im can now contain these vaiables:

%s - system name (uname -s)
%r - system release (uname -r)
%v - system version (uname -v)
%m - machine (uname -m)
%h - hostname
%t - tty
%d - date

Default for Cray is "Cray UNICOS (%h) (%t)",  (this should probably change)
 for AIX: "%s %v.%r (%h) (%t)"
 and for everything else: "%s %r (%h) (%t)".

These defaults are defined in ext.h

If the system does not have uname(2), %s defaults to "Unix"
 and %r, %v and %m to the-empty-string.

Is this clear enough?


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@59 ec53bebd-3082-4978-b11e-865c3cabbd6b

appl/telnet/telnetd/utility.c

@@ -35,9 +35,15 @@
 static char sccsid[] = "@(#)utility.c	8.4 (Berkeley) 5/30/95";
 #endif /* not lint */
 
+#include <config.h>
+
 #define PRINTOPTIONS
 #include "telnetd.h"
 
+#ifdef HAVE_UNAME
+#include <sys/utsname.h>
+#endif
+
 /*
  * utility functions performing io related tasks
  */
@@ -445,6 +451,9 @@ putf(cp, where)
 	register char *cp;
 	char *where;
 {
+#ifdef HAVE_UNAME
+        struct utsname name;
+#endif
 	char *slash;
 	time_t t;
 	char db[100];
@@ -454,6 +463,20 @@ putf(cp, where)
 	extern char *strrchr();
 #endif
 
+/* if we don't have uname, set these to sensible values */
+	char *sysname = "Unix", 
+	  *machine = "", 
+	  *release = "",
+	  *version = ""; 
+
+#ifdef HAVE_UNAME
+	uname(&name);
+	sysname=name.sysname;
+	machine=name.machine;
+	release=name.release;
+	version=name.version;
+#endif
+
 	putlocation = where;
 
 	while (*cp) {
@@ -480,6 +503,22 @@ putf(cp, where)
 			putstr(editedhost);
 			break;
 
+		case 's':
+		  putstr(sysname);
+		  break;
+
+		case 'm':
+		  putstr(machine);
+		  break;
+
+		case 'r':
+		  putstr(release);
+		  break;
+
+		case 'v':
+		  putstr(version);
+		  break;
+
 		case 'd':
 			(void)time(&t);
 			(void)strftime(db, sizeof(db), fmtstr, localtime(&t));