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authorKiyoshi Aman <kiyoshi.aman+adelie@gmail.com>2019-02-01 22:55:37 +0000
committerKiyoshi Aman <kiyoshi.aman+adelie@gmail.com>2019-02-03 18:22:05 -0600
commit5b57d28ffb6e1ef86b50f7d05d977826eae89bfe (patch)
tree154a22fe556b49e6927197336f8bf91b12eacd5e /bin/mkdir/mkdir.c
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diff --git a/bin/mkdir/mkdir.c b/bin/mkdir/mkdir.c
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+++ b/bin/mkdir/mkdir.c
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+/* $NetBSD: mkdir.c,v 1.38 2011/08/29 14:45:28 joerg Exp $ */
+
+/*
+ * Copyright (c) 1983, 1992, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * 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>
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1983, 1992, 1993\
+ The Regents of the University of California. All rights reserved.");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)mkdir.c 8.2 (Berkeley) 1/25/94";
+#else
+__RCSID("$NetBSD: mkdir.c,v 1.38 2011/08/29 14:45:28 joerg Exp $");
+#endif
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <err.h>
+#include <errno.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static int mkpath(char *, mode_t, mode_t);
+__dead static void usage(void);
+
+int
+main(int argc, char *argv[])
+{
+ int ch, exitval, pflag;
+ void *set;
+ mode_t mode, dir_mode;
+
+ setprogname(argv[0]);
+ (void)setlocale(LC_ALL, "");
+
+ /*
+ * The default file mode is a=rwx (0777) with selected permissions
+ * removed in accordance with the file mode creation mask. For
+ * intermediate path name components, the mode is the default modified
+ * by u+wx so that the subdirectories can always be created.
+ */
+ mode = (S_IRWXU | S_IRWXG | S_IRWXO) & ~umask(0);
+ dir_mode = mode | S_IWUSR | S_IXUSR;
+
+ pflag = 0;
+ while ((ch = getopt(argc, argv, "m:p")) != -1)
+ switch (ch) {
+ case 'p':
+ pflag = 1;
+ break;
+ case 'm':
+ if ((set = setmode(optarg)) == NULL) {
+ err(EXIT_FAILURE, "Cannot set file mode `%s'",
+ optarg);
+ /* NOTREACHED */
+ }
+ mode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO);
+ free(set);
+ break;
+ case '?':
+ default:
+ usage();
+ /* NOTREACHED */
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (*argv == NULL) {
+ usage();
+ /* NOTREACHED */
+ }
+
+ for (exitval = EXIT_SUCCESS; *argv != NULL; ++argv) {
+#ifdef notdef
+ char *slash;
+
+ /* Kernel takes care of this */
+ /* Remove trailing slashes, per POSIX. */
+ slash = strrchr(*argv, '\0');
+ while (--slash > *argv && *slash == '/')
+ *slash = '\0';
+#endif
+
+ if (pflag) {
+ if (mkpath(*argv, mode, dir_mode) < 0)
+ exitval = EXIT_FAILURE;
+ } else {
+ if (mkdir(*argv, mode) < 0) {
+ warn("%s", *argv);
+ exitval = EXIT_FAILURE;
+ } else {
+ /*
+ * The mkdir() and umask() calls both honor
+ * only the file permission bits, so if you try
+ * to set a mode including the sticky, setuid,
+ * setgid bits you lose them. So chmod().
+ */
+ if ((mode & ~(S_IRWXU|S_IRWXG|S_IRWXO)) != 0 &&
+ chmod(*argv, mode) == -1) {
+ warn("%s", *argv);
+ exitval = EXIT_FAILURE;
+ }
+ }
+ }
+ }
+ exit(exitval);
+ /* NOTREACHED */
+}
+
+/*
+ * mkpath -- create directories.
+ * path - path
+ * mode - file mode of terminal directory
+ * dir_mode - file mode of intermediate directories
+ */
+static int
+mkpath(char *path, mode_t mode, mode_t dir_mode)
+{
+ struct stat sb;
+ char *slash;
+ int done, rv;
+
+ done = 0;
+ slash = path;
+
+ for (;;) {
+ slash += strspn(slash, "/");
+ slash += strcspn(slash, "/");
+
+ done = (*slash == '\0');
+ *slash = '\0';
+
+ rv = mkdir(path, done ? mode : dir_mode);
+ if (rv < 0) {
+ /*
+ * Can't create; path exists or no perms.
+ * stat() path to determine what's there now.
+ */
+ int sverrno;
+
+ sverrno = errno;
+ if (stat(path, &sb) < 0) {
+ /* Not there; use mkdir()s error */
+ errno = sverrno;
+ warn("%s", path);
+ return -1;
+ }
+ if (!S_ISDIR(sb.st_mode)) {
+ /* Is there, but isn't a directory */
+ errno = ENOTDIR;
+ warn("%s", path);
+ return -1;
+ }
+ } else if (done) {
+ /*
+ * Created ok, and this is the last element
+ */
+ /*
+ * The mkdir() and umask() calls both honor only the
+ * file permission bits, so if you try to set a mode
+ * including the sticky, setuid, setgid bits you lose
+ * them. So chmod().
+ */
+ if ((mode & ~(S_IRWXU|S_IRWXG|S_IRWXO)) != 0 &&
+ chmod(path, mode) == -1) {
+ warn("%s", path);
+ return -1;
+ }
+ }
+
+ if (done) {
+ break;
+ }
+ *slash = '/';
+ }
+
+ return 0;
+}
+
+static void
+usage(void)
+{
+
+ (void)fprintf(stderr, "usage: %s [-p] [-m mode] dirname ...\n",
+ getprogname());
+ exit(EXIT_FAILURE);
+ /* NOTREACHED */
+}