deal with revised error statistics scheme

[unix-history] / usr / src / sys / stand.att / copy.c

/*
* Copyright (c) 1982, 1986 Regents of the University of California.
* All rights reserved.  The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*
*      @(#)copy.c      7.4 (Berkeley) %G%
*/

/*
* Copy from to in 10K units.
* Intended for use in system
* installation.
*/
main()
{
       extern int errno;
       register int from, to, record;
       char buffer[10240];

       from = getfile("From", 0);
       to = getfile("To", 1);
       for (record = 0; ; record++) {
               register int rcc, wcc;

               rcc = read(from, buffer, sizeof (buffer));
               if (rcc == 0)
                       break;
               if (rcc < 0) {
                       printf("Record %d: read error, errno=%d\n",
                               record, errno);
                       break;
               }
               if (rcc < sizeof (buffer))
                       printf("Record %d: read short; expected %d, got %d\n",
                               record, sizeof (buffer), rcc);
               /*
                * For bug in ht driver.
                */
               if (rcc > sizeof (buffer))
                       rcc = sizeof (buffer);
               wcc = write(to, buffer, rcc);
               if (wcc < 0) {
                       printf("Record %d: write error: errno=%d\n",
                               record, errno);
                       break;
               }
               if (wcc < rcc) {
                       printf("Record %d: write short; expected %d, got %d\n",
                               record, rcc, wcc);
                       break;
               }
       }
       printf("Copy completed: %d records copied\n", record);
       /* can't call exit here */
}