projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 777c02a3 KB |
1 | /* |
| 2 | * Copyright (c) 1988 Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms are permitted | |
| 9c50374f KB |
6 | * provided that the above copyright notice and this paragraph are |
| 7 | * duplicated in all such forms and that any documentation, | |
| 8 | * advertising materials, and other materials related to such | |
| 9 | * distribution and use acknowledge that the software was developed | |
| 10 | * by the University of California, Berkeley. The name of the | |
| 11 | * University may not be used to endorse or promote products derived | |
| 12 | * from this software without specific prior written permission. | |
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 777c02a3 | 16 | * |
| 9c50374f | 17 | * @(#)docopy.c 7.2 (Berkeley) %G% |
| 777c02a3 | 18 | */ |
| 9c50374f | 19 | |
| 777c02a3 KB |
20 | #define SIZE 10240 |
| 21 | ||
| 22 | docopy(from, to, nrecs) | |
| 23 | register int from, to, nrecs; | |
| 24 | { | |
| 25 | register int record, rcc, wcc; | |
| 26 | char buf[SIZE]; | |
| 27 | ||
| 28 | for (record = 0;;) { | |
| 29 | if (!(rcc = read(from, buffer, SIZE))) | |
| 30 | break; | |
| 31 | if (rcc < 0) { | |
| 32 | printf("Record %d: read error, errno=%d\n", | |
| 33 | record, errno); | |
| 34 | break; | |
| 35 | } | |
| 36 | if (rcc < SIZE) | |
| 37 | printf("Record %d: read short; expected %d, got %d\n", | |
| 38 | record, SIZE, rcc); | |
| 39 | #ifdef vax | |
| 40 | /* For bug in ht driver. */ | |
| 41 | if (rcc > SIZE) | |
| 42 | rcc = SIZE; | |
| 43 | #endif | |
| 44 | if ((wcc = write(to, buffer, rcc)) < 0) { | |
| 45 | printf("Record %d: write error: errno=%d\n", | |
| 46 | record, errno); | |
| 47 | break; | |
| 48 | } | |
| 49 | if (wcc < rcc) { | |
| 50 | printf("Record %d: write short; expected %d, got %d\n", | |
| 51 | record, rcc, wcc); | |
| 52 | break; | |
| 53 | } | |
| 54 | if (nrecs > 0 && ++record == nrecs) | |
| 55 | break; | |
| 56 | } | |
| 57 | printf("copy completed: %d records copied\n", record); | |
| 58 | } |