BSD 4_3 development

[unix-history] / usr / contrib / rn / last.c

/* $Header: last.c,v 4.3 85/05/01 11:42:16 lwall Exp $
*
* $Log:        last.c,v $
* Revision 4.3  85/05/01  11:42:16  lwall
* Baseline for release with 4.3bsd.
* 
*/

#include "EXTERN.h"
#include "common.h"
#include "rn.h"
#include "util.h"
#include "intrp.h"
#include "INTERN.h"
#include "last.h"

char *lastname = Nullch;        /* path name of .rnlast file */

void
last_init(tcbuf)
char *tcbuf;
{
   lastname = savestr(filexp(LASTNAME));
   if ((tmpfp = fopen(lastname,"r")) != Nullfp) {
       fgets(tcbuf,1024,tmpfp);
       tcbuf[strlen(tcbuf)-1] = '\0';
       lastngname = savestr(tcbuf);
       fgets(tcbuf,1024,tmpfp);
       lasttime = atol(tcbuf);
       fgets(tcbuf,1024,tmpfp);
       lastactsiz = atol(tcbuf);
       fclose(tmpfp);
   }
   else {
       lastngname = nullstr;
       lasttime = 0;
       lastactsiz = 0;
   }
}

/* put out certain values for next run of rn */

void
writelast()
{
   if ((tmpfp = fopen(lastname,"w")) != Nullfp) {
       fprintf(tmpfp,"%s\n%ld\n%ld\n",ngname,(long)lasttime,(long)lastactsiz);
       fclose(tmpfp);
   }
   else
       printf(cantcreate,lastname) FLUSH;
}