fix 4 GB wrap-around in top

NEWS

@@ -1,5 +1,8 @@
 procps-3.1.11 --> procps-3.1.12
 
+top: fixed 4 GB wrap-around
+ps: comes with tests
+man page: /var/run/utmp, not /etc/utmp           #206583
 required flags moved out of CFLAGS               #205429
 RPM generation handles /lib64
 WCHAN skips leading '.'

ps/ps.1

@@ -240,8 +240,7 @@ will be destroyed by init(8) if the parent process exits.
 PROCESS FLAGS
 
 FORKNOEXEC   1    forked but didn't exec
-SUPERPRIV    2    used super-user privileges
-DUMPCORE     4    dumped core
+SUPERPRIV    4    used super-user privileges
 
 
 PROCESS STATE CODES

top.c

@@ -71,7 +71,8 @@ static char  Rc_name [OURPATHSZ];
 static RCF_t Rc = DEF_RCFILE;
 
         /* The run-time acquired page size */
-static int Page_size;
+static unsigned Page_size;
+static unsigned page_to_kb_shift;
 
         /* SMP, Irix/Solaris mode, Linux 2.5.xx support */
 static int  Cpu_tot,
@@ -1567,6 +1568,11 @@ static void before (char *me)
 
       /* get virtual page size -- nearing huge! */
    Page_size = getpagesize();
+   i = Page_size;
+   while(i>1024){
+     i >>= 1;
+     page_to_kb_shift++;
+   }
 }
 
 
@@ -2874,6 +2880,8 @@ static proc_t **summary_show (void)
 }
 
 
+#define PAGES_2K(n)  (unsigned)( (n) << page_to_kb_shift )
+
         /*
          * Display information for a single task row. */
 static void task_show (const WIN_t *q, const proc_t *p)

top.h

@@ -82,11 +82,6 @@
         /* Yield table size as 'int' */
 #define MAXTBL(t)  (int)(sizeof(t) / sizeof(t[0]))
 
-        /* Convert some proc stuff into vaules we can actually use */
-#define BYTES_2K(n)  (unsigned)( (n) >> 10 )
-#define PAGES_2B(n)  (unsigned)( (n) * Page_size )
-#define PAGES_2K(n)  BYTES_2K(PAGES_2B(n))
-
         /* Used as return arguments in *some* of the sort callbacks */
 #define SORT_lt  ( Frame_srtflg > 0 ?  1 : -1 )
 #define SORT_gt  ( Frame_srtflg > 0 ? -1 :  1 )

w.1

@@ -60,7 +60,7 @@ Show information about the specified user only.
 
 .SH FILES
 .TP
-.I /etc/utmp
+.I /var/run/utmp
 information about who is currently logged on
 .TP
 .I /proc