Annotation of 43BSDReno/bin/mkdir/mkdir.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1983 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that: (1) source distributions retain this entire copyright
        !             7:  * notice and comment, and (2) distributions including binaries display
        !             8:  * the following acknowledgement:  ``This product includes software
        !             9:  * developed by the University of California, Berkeley and its contributors''
        !            10:  * in the documentation or other materials provided with the distribution
        !            11:  * and in all advertising materials mentioning features or use of this
        !            12:  * software. Neither the name of the University nor the names of its
        !            13:  * contributors may be used to endorse or promote products derived
        !            14:  * from this software without specific prior written permission.
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  */
        !            19: 
        !            20: #ifndef lint
        !            21: char copyright[] =
        !            22: "@(#) Copyright (c) 1983 Regents of the University of California.\n\
        !            23:  All rights reserved.\n";
        !            24: #endif /* not lint */
        !            25: 
        !            26: #ifndef lint
        !            27: static char sccsid[] = "@(#)mkdir.c    5.7 (Berkeley) 5/31/90";
        !            28: #endif /* not lint */
        !            29: 
        !            30: #include <sys/types.h>
        !            31: #include <sys/stat.h>
        !            32: #include <errno.h>
        !            33: #include <stdio.h>
        !            34: #include <string.h>
        !            35: 
        !            36: extern int errno;
        !            37: 
        !            38: main(argc, argv)
        !            39:        int argc;
        !            40:        char **argv;
        !            41: {
        !            42:        extern int optind;
        !            43:        int ch, exitval, pflag;
        !            44: 
        !            45:        pflag = 0;
        !            46:        while ((ch = getopt(argc, argv, "p")) != EOF)
        !            47:                switch(ch) {
        !            48:                case 'p':
        !            49:                        pflag = 1;
        !            50:                        break;
        !            51:                case '?':
        !            52:                default:
        !            53:                        usage();
        !            54:                }
        !            55: 
        !            56:        if (!*(argv += optind))
        !            57:                usage();
        !            58: 
        !            59:        for (exitval = 0; *argv; ++argv)
        !            60:                if (pflag)
        !            61:                        exitval |= build(*argv);
        !            62:                else if (mkdir(*argv, 0777) < 0) {
        !            63:                        (void)fprintf(stderr, "mkdir: %s: %s\n",
        !            64:                            *argv, strerror(errno));
        !            65:                        exitval = 1;
        !            66:                }
        !            67:        exit(exitval);
        !            68: }
        !            69: 
        !            70: build(path)
        !            71:        char *path;
        !            72: {
        !            73:        register char *p;
        !            74:        struct stat sb;
        !            75:        int create, ch;
        !            76: 
        !            77:        for (create = 0, p = path;; ++p)
        !            78:                if (!*p || *p  == '/') {
        !            79:                        ch = *p;
        !            80:                        *p = '\0';
        !            81:                        if (stat(path, &sb)) {
        !            82:                                if (errno != ENOENT || mkdir(path, 0777) < 0) {
        !            83:                                        (void)fprintf(stderr, "mkdir: %s: %s\n",
        !            84:                                            path, strerror(errno));
        !            85:                                        return(1);
        !            86:                                }
        !            87:                                create = 1;
        !            88:                        }
        !            89:                        if (!(*p = ch))
        !            90:                                break;
        !            91:                }
        !            92:        if (!create) {
        !            93:                (void)fprintf(stderr, "mkdir: %s: %s\n", path,
        !            94:                    strerror(EEXIST));
        !            95:                return(1);
        !            96:        }
        !            97:        return(0);
        !            98: }
        !            99: 
        !           100: usage()
        !           101: {
        !           102:        (void)fprintf(stderr, "usage: mkdir [-p] dirname ...\n");
        !           103:        exit(1);
        !           104: }

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