Commit | Line | Data |
---|---|---|
a8fd2d0d KM |
1 | /* |
2 | * Copyright (c) 1982, 1986, 1990 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * %sccs.include.redist.c% | |
6 | * | |
7 | * @(#)copy.c 7.1 (Berkeley) %G% | |
8 | */ | |
9 | ||
10 | /* | |
11 | * Copy from to in 10K units. | |
12 | * Intended for use in system | |
13 | * installation. | |
14 | */ | |
15 | main() | |
16 | { | |
17 | int from, to; | |
18 | char fbuf[50], tbuf[50]; | |
19 | char buffer[10240]; | |
20 | register int record; | |
21 | extern int errno; | |
22 | ||
23 | from = getdev("From", fbuf, 0); | |
24 | to = getdev("To", tbuf, 1); | |
25 | for (record = 0; ; record++) { | |
26 | int rcc, wcc; | |
27 | ||
28 | rcc = read(from, buffer, sizeof (buffer)); | |
29 | if (rcc == 0) | |
30 | break; | |
31 | if (rcc < 0) { | |
32 | printf("Record %d: read error, errno=%d\n", | |
33 | record, errno); | |
34 | break; | |
35 | } | |
36 | if (rcc < sizeof (buffer)) | |
37 | printf("Record %d: read short; expected %d, got %d\n", | |
38 | record, sizeof (buffer), rcc); | |
39 | /* | |
40 | * For bug in ht driver. | |
41 | */ | |
42 | if (rcc > sizeof (buffer)) | |
43 | rcc = sizeof (buffer); | |
44 | wcc = write(to, buffer, rcc); | |
45 | if (wcc < 0) { | |
46 | printf("Record %d: write error: errno=%d\n", | |
47 | record, errno); | |
48 | break; | |
49 | } | |
50 | if (wcc < rcc) { | |
51 | printf("Record %d: write short; expected %d, got %d\n", | |
52 | record, rcc, wcc); | |
53 | break; | |
54 | } | |
55 | } | |
56 | printf("Copy completed: %d records copied\n", record); | |
57 | /* can't call exit here */ | |
58 | } | |
59 | ||
60 | getdev(prompt, buf, mode) | |
61 | char *prompt, *buf; | |
62 | int mode; | |
63 | { | |
64 | register int i; | |
65 | ||
66 | do { | |
67 | printf("%s: ", prompt); | |
68 | gets(buf); | |
69 | i = open(buf, mode); | |
70 | } while (i <= 0); | |
71 | return (i); | |
72 | } |