BSD 4.4 Lite bin Sources

1 files changed, 169 insertions, 0 deletions

diff --git a/bin/mkdir/mkdir.c b/bin/mkdir/mkdir.c
new file mode 100644
index 0000000..32d45d5
--- /dev/null
+++ b/bin/mkdir/mkdir.c
@@ -0,0 +1,169 @@
+/*
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1983, 1992, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)mkdir.c	8.2 (Berkeley) 1/25/94";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <err.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int	build __P((char *));
+void	usage __P((void));
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	int ch, exitval, oct, omode, pflag;
+	mode_t *set;
+	char *ep, *mode;
+
+	pflag = 0;
+	mode = NULL;
+	while ((ch = getopt(argc, argv, "m:p")) != EOF)
+		switch(ch) {
+		case 'p':
+			pflag = 1;
+			break;
+		case 'm':
+			mode = optarg;
+			break;
+		case '?':
+		default:
+			usage();
+		}
+
+	argc -= optind;
+	argv += optind;
+	if (argv[0] == NULL)
+		usage();
+
+	if (mode == NULL) {
+		omode = S_IRWXU | S_IRWXG | S_IRWXO;
+		oct = 1;
+	} else if (*mode >= '0' && *mode <= '7') {
+		omode = (int)strtol(mode, &ep, 8);
+		if (omode < 0 || *ep)
+			errx(1, "invalid file mode: %s", mode);
+		oct = 1;
+	} else {
+		if ((set = setmode(mode)) == NULL)
+			errx(1, "invalid file mode: %s", mode);
+		oct = 0;
+	}
+
+	for (exitval = 0; *argv != NULL; ++argv) {
+		if (pflag && build(*argv)) {
+			exitval = 1;
+			continue;
+		}
+		if (mkdir(*argv, oct ?
+		    omode : getmode(set, S_IRWXU | S_IRWXG | S_IRWXO)) < 0) {
+			warn("%s", *argv);
+			exitval = 1;
+		}
+	}
+	exit(exitval);
+}
+
+int
+build(path)
+	char *path;
+{
+	struct stat sb;
+	mode_t numask, oumask;
+	int first;
+	char *p;
+
+	p = path;
+	if (p[0] == '/')		/* Skip leading '/'. */
+		++p;
+	for (first = 1;; ++p) {
+		if (p[0] == '\0' || p[0] == '/' && p[1] == '\0')
+			break;
+		if (p[0] != '/')
+			continue;
+		*p = '\0';
+		if (first) {
+			/*
+			 * POSIX 1003.2:
+			 * For each dir operand that does not name an existing
+			 * directory, effects equivalent to those cased by the
+			 * following command shall occcur:
+			 *
+			 * mkdir -p -m $(umask -S),u+wx $(dirname dir) &&
+			 *    mkdir [-m mode] dir
+			 *
+			 * We change the user's umask and then restore it,
+			 * instead of doing chmod's.
+			 */
+			oumask = umask(0);
+			numask = oumask & ~(S_IWUSR | S_IXUSR);
+			(void)umask(numask);
+			first = 0;
+		}
+		if (stat(path, &sb)) {
+			if (errno != ENOENT ||
+			    mkdir(path, S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
+				warn("%s", path);
+				return (1);
+			}
+		}
+		*p = '/';
+	}
+	if (!first)
+		(void)umask(oumask);
+	return (0);
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr, "usage: mkdir [-p] [-m mode] directory ...\n");
+	exit (1);
+}