BSD 4_3_Reno release

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

/*
* Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
* All rights reserved.
*
* Redistribution is only permitted until one year after the first shipment
* of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
* binary forms are permitted provided that: (1) source distributions retain
* this entire copyright notice and comment, and (2) distributions including
* binaries display the following acknowledgement:  This product includes
* software developed by the University of California, Berkeley and its
* contributors'' in the documentation or other materials provided with the
* distribution and in all advertising materials mentioning features or use
* of this software.  Neither the name of the University nor the names of
* its contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
*      @(#)copy.c      7.1 (Berkeley) 5/8/90
*/

/*
* Copy from to in 10K units.
* Intended for use in system
* installation.
*/
main()
{
       int from, to;
       char fbuf[50], tbuf[50];
       char buffer[10240];
       register int record;
       extern int errno;

       from = getdev("From", fbuf, 0);
       to = getdev("To", tbuf, 1);
       for (record = 0; ; record++) {
               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 */
}

getdev(prompt, buf, mode)
       char *prompt, *buf;
       int mode;
{
       register int i;

       do {
               printf("%s: ", prompt);
               gets(buf);
               i = open(buf, mode);
       } while (i <= 0);
       return (i);
}