Commit | Line | Data |
---|---|---|
777c02a3 KB |
1 | /* |
2 | * Copyright (c) 1988 Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
dbf0c423 | 5 | * %sccs.include.redist.c% |
777c02a3 | 6 | * |
dbf0c423 | 7 | * @(#)docopy.c 7.3 (Berkeley) %G% |
777c02a3 | 8 | */ |
9c50374f | 9 | |
777c02a3 KB |
10 | #define SIZE 10240 |
11 | ||
12 | docopy(from, to, nrecs) | |
13 | register int from, to, nrecs; | |
14 | { | |
15 | register int record, rcc, wcc; | |
16 | char buf[SIZE]; | |
17 | ||
18 | for (record = 0;;) { | |
19 | if (!(rcc = read(from, buffer, SIZE))) | |
20 | break; | |
21 | if (rcc < 0) { | |
22 | printf("Record %d: read error, errno=%d\n", | |
23 | record, errno); | |
24 | break; | |
25 | } | |
26 | if (rcc < SIZE) | |
27 | printf("Record %d: read short; expected %d, got %d\n", | |
28 | record, SIZE, rcc); | |
29 | #ifdef vax | |
30 | /* For bug in ht driver. */ | |
31 | if (rcc > SIZE) | |
32 | rcc = SIZE; | |
33 | #endif | |
34 | if ((wcc = write(to, buffer, rcc)) < 0) { | |
35 | printf("Record %d: write error: errno=%d\n", | |
36 | record, errno); | |
37 | break; | |
38 | } | |
39 | if (wcc < rcc) { | |
40 | printf("Record %d: write short; expected %d, got %d\n", | |
41 | record, rcc, wcc); | |
42 | break; | |
43 | } | |
44 | if (nrecs > 0 && ++record == nrecs) | |
45 | break; | |
46 | } | |
47 | printf("copy completed: %d records copied\n", record); | |
48 | } |