From 5fd83771641d15c418f747bd343ba6738d3875f7 Mon Sep 17 00:00:00 2001
From: Cameron Katri <me@cameronkatri.com>
Date: Sun, 9 May 2021 14:20:58 -0400
Subject: Import macOS userland

adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106
---
 diskdev_cmds/vndevice.tproj/vndevice.c | 134 +++++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 diskdev_cmds/vndevice.tproj/vndevice.c

(limited to 'diskdev_cmds/vndevice.tproj/vndevice.c')

diff --git a/diskdev_cmds/vndevice.tproj/vndevice.c b/diskdev_cmds/vndevice.tproj/vndevice.c
new file mode 100644
index 0000000..9610ddf
--- /dev/null
+++ b/diskdev_cmds/vndevice.tproj/vndevice.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/*
+ * History:
+ * March 25, 2002	Dieter Siegmund (dieter@apple.com)
+ * - created
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/ioccom.h>
+#include <sys/vnioctl.h>
+#include <sys/fcntl.h>
+#include <sys/stat.h>
+#include <mach/boolean.h>
+#include <sys/disk.h>
+
+void
+usage()
+{
+    fprintf(stderr, "usage: vncontrol <command> <args>\n"
+	    "vncontrol attach <dev_node> <image_file>\n"
+	    "vncontrol shadow <dev_node> <shadow_file>\n"
+	    "vncontrol detach <dev_node>\n");
+    exit(1);
+}
+
+enum {
+  kAttach,
+  kDetach,
+  kShadow,
+};
+
+int
+main(int argc, char * argv[])
+{
+    int fd;
+    struct vn_ioctl vn;
+    int op = kAttach;
+    struct stat sb;
+
+    if (argc < 2) {
+	usage();
+    }
+    if (strcmp(argv[1], "attach") == 0) {
+	if (argc < 4) {
+	    usage();
+	}
+	op = kAttach;
+    }
+    else if (strcmp(argv[1], "detach") == 0) {
+	if (argc < 3) {
+	    usage();
+	}
+	op = kDetach;
+    }
+    else if (strcmp(argv[1], "shadow") == 0) {
+	if (argc < 4) {
+	    usage();
+	}
+	op = kShadow;
+    }
+    else {
+	usage();
+    }
+    fd = open(argv[2], O_RDONLY, 0);
+    if (fd < 0) {
+	perror(argv[2]);
+	exit(2);
+    }
+    switch (op) {
+    case kAttach:
+    case kShadow:
+	if (stat(argv[3], &sb) < 0) {
+	    perror(argv[3]);
+	    exit(2);
+	}
+	break;
+    default:
+	break;
+    }
+    bzero(&vn, sizeof(vn));
+    switch (op) {
+    case kAttach:
+	vn.vn_file = argv[3];
+	vn.vn_control = vncontrol_readwrite_io_e;
+    
+	if (ioctl(fd, VNIOCATTACH, &vn) < 0) {
+	    perror("VNIOCATTACH");
+	    exit(2);
+	}
+	break;
+    case kDetach:
+	if (ioctl(fd, VNIOCDETACH, &vn) < 0) {
+	    perror("VNIOCDETACH");
+	    exit(2);
+	}
+	break;
+    case kShadow:
+	vn.vn_file = argv[3];
+	if (ioctl(fd, VNIOCSHADOW, &vn) < 0) {
+	    perror("VNIOCSHADOW");
+	    exit(2);
+	}
+	break;
+    }
+    close(fd);
+    exit(0);
+    return (0);
+}
-- 
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