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Annotation of 43BSD/sys/stand/copy.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)copy.c      7.1 (Berkeley) 6/5/86
                      7:  */
                      8: 
                      9: /*
                     10:  * Copy from to in 10K units.
                     11:  * Intended for use in system
                     12:  * installation.
                     13:  */
                     14: main()
                     15: {
                     16:        int from, to;
                     17:        char fbuf[50], tbuf[50];
                     18:        char buffer[10240];
                     19:        register int record;
                     20:        extern int errno;
                     21: 
                     22:        from = getdev("From", fbuf, 0);
                     23:        to = getdev("To", tbuf, 1);
                     24:        for (record = 0; ; record++) {
                     25:                int rcc, wcc;
                     26: 
                     27:                rcc = read(from, buffer, sizeof (buffer));
                     28:                if (rcc == 0)
                     29:                        break;
                     30:                if (rcc < 0) {
                     31:                        printf("Record %d: read error, errno=%d\n",
                     32:                                record, errno);
                     33:                        break;
                     34:                }
                     35:                if (rcc < sizeof (buffer))
                     36:                        printf("Record %d: read short; expected %d, got %d\n",
                     37:                                record, sizeof (buffer), rcc);
                     38:                /*
                     39:                 * For bug in ht driver.
                     40:                 */
                     41:                if (rcc > sizeof (buffer))
                     42:                        rcc = sizeof (buffer);
                     43:                wcc = write(to, buffer, rcc);
                     44:                if (wcc < 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:        }
                     55:        printf("Copy completed: %d records copied\n", record);
                     56:        /* can't call exit here */
                     57: }
                     58: 
                     59: getdev(prompt, buf, mode)
                     60:        char *prompt, *buf;
                     61:        int mode;
                     62: {
                     63:        register int i;
                     64: 
                     65:        do {
                     66:                printf("%s: ", prompt);
                     67:                gets(buf);
                     68:                i = open(buf, mode);
                     69:        } while (i <= 0);
                     70:        return (i);
                     71: }

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