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Annotation of 43BSDReno/usr.bin/mkfifo/mkfifo.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1990 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) 1990 Regents of the University of California.\n\
                     23:  All rights reserved.\n";
                     24: #endif /* not lint */
                     25: 
                     26: #ifndef lint
                     27: static char sccsid[] = "@(#)mkfifo.c   5.3 (Berkeley) 6/1/90";
                     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: main(argc, argv)
                     37:        int argc;
                     38:        char **argv;
                     39: {
                     40:        extern int errno, optind;
                     41:        int ch, exitval, pflag;
                     42: 
                     43:        pflag = 0;
                     44:        while ((ch = getopt(argc, argv, "p")) != EOF)
                     45:                switch(ch) {
                     46:                case 'p':
                     47:                        pflag = 1;
                     48:                        break;
                     49:                case '?':
                     50:                default:
                     51:                        usage();
                     52:                }
                     53: 
                     54:        if (!*(argv += optind))
                     55:                usage();
                     56: 
                     57:        for (exitval = 0; *argv; ++argv) {
                     58:                if (pflag && build(*argv)) {
                     59:                        exitval |= 1;
                     60:                        continue;
                     61:                }
                     62:                if (mkfifo(*argv, 0777) < 0) {
                     63:                        (void)fprintf(stderr, "mkfifo: %s: %s\n",
                     64:                            *argv, strerror(errno));
                     65:                        exitval |= 1;
                     66:                }
                     67:        }
                     68:        exit(exitval);
                     69: }
                     70: 
                     71: build(path)
                     72:        char *path;
                     73: {
                     74:        register char *p;
                     75:        struct stat sb;
                     76: 
                     77:        for (p = path; *p; p++) {
                     78:                if (*p  != '/')
                     79:                        continue;
                     80:                if (stat(path, &sb)) {
                     81:                        if (errno != ENOENT || mkdir(path, 0777) < 0) {
                     82:                                (void)fprintf(stderr, "mkdir: %s: %s\n",
                     83:                                    path, strerror(errno));
                     84:                                return(1);
                     85:                        }
                     86:                }
                     87:                *p = '/';
                     88:        }
                     89:        return(0);
                     90: }
                     91: 
                     92: usage()
                     93: {
                     94:        (void)fprintf(stderr, "usage: mkfifo [-p] fifoname ...\n");
                     95:        exit(1);
                     96: }

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