X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=coreutils%2Fmknod.c;h=6fa6d8353aeaa1d20deb31828aad55d896b71576;hb=ec1a4b5a521b5adf295bc757c25231910f8c854b;hp=b11a81f2abdd4b36230d99f7b140b5ce58d550b6;hpb=e49d5ecbbe51718fa925b6890a735e5937cc2aa2;p=oweals%2Fbusybox.git

diff --git a/coreutils/mknod.c b/coreutils/mknod.c
index b11a81f2a..6fa6d8353 100644
--- a/coreutils/mknod.c
+++ b/coreutils/mknod.c
@@ -1,76 +1,51 @@
 /* vi: set sw=4 ts=4: */
 /*
- * Mini mknod implementation for busybox
+ * mknod implementation for busybox
  *
- * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Copyright (C) 2003  Manuel Novoa III  <mjn3@codepoet.org>
  *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-#include "internal.h"
-#include <stdio.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
+/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
 
-static const char mknod_usage[] = "mknod NAME TYPE MAJOR MINOR\n\n"
-	"Make block or character special files.\n\n"
-	"TYPEs include:\n"
-	"\tb:\tMake a block (buffered) device.\n"
+#include <sys/sysmacros.h>  // For makedev
 
-	"\tc or u:\tMake a character (un-buffered) device.\n"
-	"\tp:\tMake a named pipe. Major and minor are ignored for named pipes.\n";
+#include "busybox.h"
+#include "libcoreutils/coreutils.h"
 
+static const char modes_chars[] = { 'p', 'c', 'u', 'b', 0, 1, 1, 2 };
+static const mode_t modes_cubp[] = { S_IFIFO, S_IFCHR, S_IFBLK };
+
+int mknod_main(int argc, char **argv);
 int mknod_main(int argc, char **argv)
 {
-	mode_t mode = 0;
-	dev_t dev = 0;
-
-	if (argc != 5 || **(argv + 1) == '-') {
-		usage(mknod_usage);
-	}
-	switch (argv[2][0]) {
-	case 'c':
-	case 'u':
-		mode = S_IFCHR;
-		break;
-	case 'b':
-		mode = S_IFBLK;
-		break;
-	case 'p':
-		mode = S_IFIFO;
-		break;
-	default:
-		usage(mknod_usage);
-	}
-
-	if (mode == S_IFCHR || mode == S_IFBLK) {
-		dev = (atoi(argv[3]) << 8) | atoi(argv[4]);
-		if (argc != 5) {
-			usage(mknod_usage);
+	mode_t mode;
+	dev_t dev;
+	const char *name;
+
+	mode = getopt_mk_fifo_nod(argc, argv);
+	argv += optind;
+	argc -= optind;
+
+	if ((argc >= 2) && ((name = strchr(modes_chars, argv[1][0])) != NULL)) {
+		mode |= modes_cubp[(int)(name[4])];
+
+		dev = 0;
+		if ((*name != 'p') && ((argc -= 2) == 2)) {
+			/* Autodetect what the system supports; these macros should
+			 * optimize out to two constants. */
+			dev = makedev(xatoul_range(argv[2], 0, major(UINT_MAX)),
+			              xatoul_range(argv[3], 0, minor(UINT_MAX)));
 		}
-	}
 
-	mode |= 0666;
-
-	if (mknod(argv[1], mode, dev) != 0) {
-		perror(argv[1]);
-		return (FALSE);
+		if (argc == 2) {
+			name = *argv;
+			if (mknod(name, mode, dev) == 0) {
+				return EXIT_SUCCESS;
+			}
+			bb_perror_msg_and_die("%s", name);
+		}
 	}
-	return (TRUE);
+	bb_show_usage();
 }