misc/54661: Update last(1) to allow -n # in addition to -# for number of records

[Larry Rosenman]

>Number:         54661
>Category:       misc
>Synopsis:       Update last(1) to allow -n # in addition to -# for number of records
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Sun Jul 20 09:40:17 PDT 2003
>Closed-Date:
>Last-Modified:
>Originator:     Larry Rosenman
>Release:        FreeBSD 5.1-CURRENT i386
>Organization:
LERCTR Consulting
>Environment:
System: FreeBSD lerlaptop.lerctr.org 5.1-CURRENT FreeBSD 5.1-CURRENT #29: Fri Jul 18 13:29:29 CDT 2003 ler at lerlaptop.iadfw.net:/usr/obj/usr/src/sys/LERLAPTOP i386


	
>Description:
My UnixWare (System V Release 5) system allows -n # to be used for
the last command, and I find it annoying that the FreeBSD version
doesn't accept this. 

The Patch below will allow both. 

Unfortunately, I'm not a mdoc person, so I did NOT do a man page
patch, as I'm not familiar enough with it.  If a doc person could
point me to the appropriate doc, or make the change, I'd appreciate it.

The patch is to /usr/src/usr.bin/last:
>How-To-Repeat:
type last -n 20, notice error. 
>Fix:

--- last.c.orig	Wed Oct 30 12:19:59 2002
+++ last.c	Sun Jul 20 11:16:00 2003
@@ -113,7 +113,7 @@
 usage(void)
 {
 	(void)fprintf(stderr,
-"usage: last [-#] [-y] [-d [[CC]YY][MMDD]hhmm[.SS]] [-f file] [-h host]\n"
+"usage: last [-#] [-n #] [-y] [-d [[CC]YY][MMDD]hhmm[.SS]] [-f file] [-h host]\n"
 "\t[-t tty] [-s|w] [user ...]\n");
 	exit(1);
 }
@@ -129,7 +129,7 @@
 
 	maxrec = -1;
 	snaptime = 0;
-	while ((ch = getopt(argc, argv, "0123456789d:f:h:st:wy")) != -1)
+	while ((ch = getopt(argc, argv, "0123456789d:f:h:n:st:wy")) != -1)
 		switch (ch) {
 		case '0': case '1': case '2': case '3': case '4':
 		case '5': case '6': case '7': case '8': case '9':
@@ -148,6 +148,9 @@
 			break;
 		case 'd':
 			snaptime = dateconv(optarg);
+			break;
+		case 'n':
+			maxrec = atol(optarg);
 			break;
 		case 'f':
 			file = optarg;

>Release-Note:
>Audit-Trail:
>Unformatted: