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Diffstat (limited to 'package/toolbox/src/mknod/mknod.c')
| -rw-r--r-- | package/toolbox/src/mknod/mknod.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/package/toolbox/src/mknod/mknod.c b/package/toolbox/src/mknod/mknod.c new file mode 100644 index 000000000..f09dfe8c4 --- /dev/null +++ b/package/toolbox/src/mknod/mknod.c @@ -0,0 +1,190 @@ +/* $OpenBSD: mknod.c,v 1.13 2003/06/02 20:06:15 millert Exp $ */ +/* $NetBSD: mknod.c,v 1.8 1995/08/11 00:08:18 jtc Exp $ */ + +/* + * Copyright (c) 1989, 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kevin Fall. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__COPYRIGHT("@(#) Copyright (c) 1989, 1993\n\ + The Regents of the University of California. All rights reserved.\n"); +__SCCSID("@(#)mknod.c 8.1 (Berkeley) 6/5/93"); +__RCSID("$MirOS: src/sbin/mknod/mknod.c,v 1.3 2016/01/02 21:33:04 tg Exp $"); + +#include <sys/types.h> +#include <sys/stat.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <locale.h> +#include <err.h> + +extern char *__progname; + +int domknod(int, char **, mode_t); +int domkfifo(int, char **, mode_t); +void usage(int); + +extern mode_t getmode(const void *, mode_t); +extern void *setmode(const char *); + +int +main(int argc, char *argv[]) +{ + int ch, ismkfifo = 0; + void *set = NULL; + mode_t mode = 0; + + if (strcmp(__progname, "mkfifo") == 0) + ismkfifo = 1; + + while ((ch = getopt(argc, argv, "m:")) != -1) + switch(ch) { + case 'm': + if (!(set = setmode(optarg))) { + errx(1, "invalid file mode."); + /* NOTREACHED */ + } + + /* + * In symbolic mode strings, the + and - operators are + * interpreted relative to an assumed initial mode of + * a=rw. + */ + mode = getmode(set, DEFFILEMODE); + free(set); + break; + case '?': + default: + usage(ismkfifo); + } + argc -= optind; + argv += optind; + + if (argv[0] == NULL) + usage(ismkfifo); + if (!ismkfifo) { + if (argc == 2 && argv[1][0] == 'p') { + ismkfifo = 2; + argc--; + argv[1] = NULL; + } else if (argc != 4) { + usage(ismkfifo); + /* NOTREACHED */ + } + } + + /* + * If the user specified a mode via `-m', don't allow the umask + * to modified it. If no `-m' flag was specified, the default + * mode is the value of the bitwise inclusive or of S_IRUSR, + * S_IWUSR, S_IRGRP, S_IWGRP, S_IROTH, and S_IWOTH as modified by + * the umask. + */ + if (set) + (void)umask(0); + else + mode = DEFFILEMODE; + + if (ismkfifo) + exit(domkfifo(argc, argv, mode)); + else + exit(domknod(argc, argv, mode)); +} + +int +domknod(int argc, char **argv, mode_t mode) +{ + dev_t dev; + char *endp; + u_int major, minor; + + if (argv[1][0] == 'c') + mode |= S_IFCHR; + else if (argv[1][0] == 'b') + mode |= S_IFBLK; + else { + errx(1, "node must be type 'b' or 'c'."); + /* NOTREACHED */ + } + + major = (long)strtoul(argv[2], &endp, 0); + if (endp == argv[2] || *endp != '\0') { + errx(1, "non-numeric major number."); + /* NOTREACHED */ + } + minor = (long)strtoul(argv[3], &endp, 0); + if (endp == argv[3] || *endp != '\0') { + errx(1, "non-numeric minor number."); + /* NOTREACHED */ + } + dev = makedev(major, minor); + if (major(dev) != major || minor(dev) != minor) { + errx(1, "major or minor number too large"); + /* NOTREACHED */ + } + if (mknod(argv[0], mode, dev) < 0) { + err(1, "%s", argv[0]); + /* NOTREACHED */ + } + return(0); +} + +int +domkfifo(int argc, char **argv, mode_t mode) +{ + int rv; + + for (rv = 0; *argv; ++argv) { + if (mkfifo(*argv, mode) < 0) { + warn("%s", *argv); + rv = 1; + } + } + return(rv); +} + +void +usage(int ismkfifo) +{ + + if (ismkfifo == 1) + (void)fprintf(stderr, "usage: %s [-m mode] fifoname ...\n", + __progname); + else { + (void)fprintf(stderr, "usage: %s [-m mode] name [b | c] major minor\n", + __progname); + (void)fprintf(stderr, "usage: %s [-m mode] name p\n", + __progname); + } + exit(1); +} |