From: flipk <flipk@openbsd.org>
Date: Mon, 3 Mar 1997 03:25:10 +0000 (+0000)
Subject: don't try to fseek to before the beginning of the file;
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=5ac84c996e24c5005ad9be09f8921e1502b0cb96;p=openbsd

don't try to fseek to before the beginning of the file;
showed up after the fix to sys_lseek concerning negative offsets.
avoids '/var/account/acct: Invalid argument' messages.
---

diff --git a/usr.bin/lastcomm/lastcomm.c b/usr.bin/lastcomm/lastcomm.c
index f47688fab0a..66478b358ad 100644
--- a/usr.bin/lastcomm/lastcomm.c
+++ b/usr.bin/lastcomm/lastcomm.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: lastcomm.c,v 1.4 1997/01/15 23:42:41 millert Exp $	*/
+/*	$OpenBSD: lastcomm.c,v 1.5 1997/03/03 03:25:10 flipk Exp $	*/
 /*	$NetBSD: lastcomm.c,v 1.9 1995/10/22 01:43:42 ghudson Exp $	*/
 
 /*
@@ -44,7 +44,7 @@ static char copyright[] =
 #if 0
 static char sccsid[] = "@(#)lastcomm.c	8.2 (Berkeley) 4/29/95";
 #endif
-static char rcsid[] = "$OpenBSD: lastcomm.c,v 1.4 1997/01/15 23:42:41 millert Exp $";
+static char rcsid[] = "$OpenBSD: lastcomm.c,v 1.5 1997/03/03 03:25:10 flipk Exp $";
 #endif /* not lint */
 
 #include <sys/param.h>
@@ -128,8 +128,6 @@ main(argc, argv)
 		if (fseek(fp, 2 * -(long)sizeof(struct acct), SEEK_CUR) == -1)
 			err(1, "%s", acctfile);
 
-		if (size == 0)
-			break;
 		size -= sizeof(struct acct);
 
 		if (ab.ac_comm[0] == '\0') {
@@ -154,6 +152,9 @@ main(argc, argv)
 		    delta / SECSPERHOUR,
 		    fmod(delta, SECSPERHOUR) / SECSPERMIN,
 		    fmod(delta, SECSPERMIN));
+
+		if (size == 0)
+			break;
 	}
 	exit(0);
 }