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Annotation of Net2/stand/copy.c, revision 1.1.1.2

1.1       root        1: /*-
                      2:  * Copyright (c) 1982, 1986, 1988 The Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  * 3. All advertising materials mentioning features or use of this software
                     14:  *    must display the following acknowledgement:
                     15:  *     This product includes software developed by the University of
                     16:  *     California, Berkeley and its contributors.
                     17:  * 4. Neither the name of the University nor the names of its contributors
                     18:  *    may be used to endorse or promote products derived from this software
                     19:  *    without specific prior written permission.
                     20:  *
                     21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     31:  * SUCH DAMAGE.
                     32:  *
1.1.1.2 ! root       33:  *     from: @(#)copy.c        7.7 (Berkeley) 5/21/91
        !            34:  *     copy.c,v 1.2 1993/05/20 03:53:57 cgd Exp
1.1       root       35:  */
                     36: 
                     37: #define        BSIZE   10240
                     38: 
                     39: /*
                     40:  * Copy from from to to.  Intended for use in system installation.
                     41:  */
                     42: main()
                     43: {
                     44:        extern int errno;
                     45:        register int from, to, record, rcc, wcc, bsize = BSIZE;
                     46:        char buf[BSIZE];
                     47: 
                     48:        from = getfile("From", 0);
                     49:        to = getfile("To", 1);
                     50:        for (record = 0;; ++record) {
                     51:                if (!(rcc = read(from, buf, bsize)))
                     52:                        break;
                     53:                if (rcc < 0) {
                     54:                        printf("Record %d: read error, errno=%d\n",
                     55:                            record, errno);
                     56:                        break;
                     57:                }
                     58:                if (rcc != bsize) {
                     59:                        if (record == 0) {
                     60:                                bsize = rcc;
                     61:                                printf("Block size set from input; %d bytes\n",
                     62:                                    bsize);
                     63:                        } else
                     64:                                printf("Record %d: read short; expected %d, got %d\n",
                     65:                                    record, bsize, rcc);
                     66:                }
                     67: #ifdef vax
                     68:                /* For bug in ht driver. */
                     69:                if (rcc > bsize)
                     70:                        rcc = bsize;
                     71: #endif
                     72:                if ((wcc = write(to, buf, rcc)) < 0) {
                     73:                        printf("Record %d: write error: errno=%d\n",
                     74:                            record, errno);
                     75:                        break;
                     76:                }
                     77:                if (wcc < rcc) {
                     78:                        printf("Record %d: write short; expected %d, got %d\n",
                     79:                            record, rcc, wcc);
                     80:                        break;
                     81:                }
                     82:        }
                     83:        printf("copy completed: %d records copied\n", record);
                     84: }

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