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Annotation of prex-old/usr/bin/mv/mv.c, Revision 1.1

1.1     ! nbrk        1: /*
        !             2:  * Copyright (c) 2005-2006, Kohsuke Ohtani
        !             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. Neither the name of the author nor the names of any co-contributors
        !            14:  *    may be used to endorse or promote products derived from this software
        !            15:  *    without specific prior written permission.
        !            16:  *
        !            17:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
        !            18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
        !            21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            27:  * SUCH DAMAGE.
        !            28:  */
        !            29:
        !            30: #include <sys/stat.h>
        !            31:
        !            32: #include <errno.h>
        !            33: #include <err.h>
        !            34: #include <string.h>
        !            35: #include <stdio.h>
        !            36: #include <limits.h>
        !            37: #include <stdlib.h>
        !            38:
        !            39: #ifdef CMDBOX
        !            40: #define main(argc, argv)       mv_main(argc, argv)
        !            41: #endif
        !            42:
        !            43: int
        !            44: main(int argc, char *argv[])
        !            45: {
        !            46:        char path[PATH_MAX];
        !            47:        char *src, *dest, *p;
        !            48:        struct stat st1, st2;
        !            49:        int rc;
        !            50:
        !            51:        if (argc != 3) {
        !            52:                fprintf(stderr, "usage: mv src dest\n");
        !            53:                exit(1);
        !            54:        }
        !            55:        src = argv[1];
        !            56:        dest = argv[2];
        !            57:
        !            58:        /* Check if source exists and it's regular file. */
        !            59:        if (stat(src, &st1) < 0)
        !            60:                err(1,"mv");
        !            61:        if (!S_ISREG(st1.st_mode)) {
        !            62:                fprintf(stderr, "mv: invalid file type\n");
        !            63:                exit(1);
        !            64:        }
        !            65:
        !            66:        /* Check if target is a directory. */
        !            67:        rc = stat(dest, &st2);
        !            68:        if (!rc && S_ISDIR(st2.st_mode)) {
        !            69:                p = strrchr(src, '/');
        !            70:                p = p ? p + 1 : src;
        !            71:                strcpy(path, dest);
        !            72:                if (strcmp(dest, "/"))
        !            73:                        strcat(path, "/");
        !            74:                strcat(path, p);
        !            75:                dest = path;
        !            76:        }
        !            77:        if (rename(src, dest) < 0)
        !            78:                err(1,"rename");
        !            79:        return 0;
        !            80: }