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Annotation of Net2/arch/i386/floppy/cp/cp.c, revision 1.1.1.1

1.1       root        1: /*-
                      2:  * Copyright (c) 1991 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:  *
                     33:  *     @(#)cp.c        5.1 (Berkeley) 5/9/91
                     34:  */
                     35: 
                     36: #include <fcntl.h>
                     37: 
                     38: int eval;
                     39: 
                     40: main(argc, argv)
                     41:        int argc;
                     42:        char **argv;
                     43: {
                     44:        register int from, to, nr;
                     45:        char buf[2048];
                     46: 
                     47:        if (*++argv && **argv == '-') {
                     48:                err("no options available", 0);
                     49:                _exit(1);
                     50:        }
                     51:        if (argc != 3) {
                     52:                err("usage: cp file1 file2", 0);
                     53:                _exit(1);
                     54:        }
                     55:        if ((from = open(argv[0], O_RDONLY, 0)) < 0)
                     56:                err(argv[0], 1);
                     57:        else if ((to = open(argv[1], O_CREAT|O_TRUNC|O_WRONLY, 0666)) < 0)
                     58:                err(argv[1], 1);
                     59:        else {
                     60:                while ((nr = read(from, buf, sizeof(buf))) > 0)
                     61:                        if (write(to, buf, nr) != nr) {
                     62:                                err(argv[1], 1);
                     63:                                break;
                     64:                        }
                     65:                if (nr == -1)
                     66:                        err(argv[0], 1);
                     67:        }
                     68:        _exit(eval);
                     69: }
                     70: 
                     71: #define        PROGNAME        "cp: "
                     72: #include "errfunction"

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