haiku-beta6/src/bin/isvolume.cpp

/*
 * Copyright 2002-2006, Haiku Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *		Jonas Sundstrom, [email protected]
 */


#include <fs_info.h>

#include <stdio.h>
#include <string.h>


static void
usage()
{
	fprintf(stderr, 
		"Usage: isvolume {-OPTION} [volumename]\n"
		"   Where OPTION is one of:\n"
		"           -readonly   - volume is read-only\n"
		"           -query      - volume supports queries\n"
		"           -attribute  - volume supports attributes\n"
		"           -mime       - volume supports MIME information\n"
		"           -shared     - volume is shared\n"
		"           -persistent - volume is backed on permanent storage\n"
		"           -removable  - volume is on removable media\n"
		"   If the option is true for the named volume, 'yes' is printed\n"
		"   and if the option is false, 'no' is printed. Multiple options\n"
		"   can be specified in which case all of them must be true.\n\n"
		"   If no volume is specified, the volume of the current directory is assumed.\n");
}


int
main(int32 argc, char** argv)
{
	dev_t volumeDevice = dev_for_path(".");
	uint32 isVolumeFlags = 0;
	fs_info volumeInfo;
	
	for (int i = 1; i < argc; i++) {
		if (!strcmp(argv[i], "--help")) {
			usage();
			return 0;
		}
	
		if (argv[i][0] == '-') {
			if (! strcmp(argv[i], "-readonly"))
				isVolumeFlags	|= B_FS_IS_READONLY;
			else if (! strcmp(argv[i], "-query"))
				isVolumeFlags	|= B_FS_HAS_QUERY;
			else if (! strcmp(argv[i], "-attribute"))	
				isVolumeFlags	|= B_FS_HAS_ATTR;
			else if (! strcmp(argv[i], "-mime"))	
				isVolumeFlags	|= B_FS_HAS_MIME;
			else if (! strcmp(argv[i], "-shared"))		
				isVolumeFlags	|= B_FS_IS_SHARED;
			else if (! strcmp(argv[i], "-persistent"))
				isVolumeFlags	|= B_FS_IS_PERSISTENT;
			else if (! strcmp(argv[i], "-removable"))	
				isVolumeFlags	|= B_FS_IS_REMOVABLE;
			else {	
				fprintf(stderr,
					"%s: option %s is not understood (use --help for help)\n", argv[0], argv[i]);
				return 1;
			}
		} else {
			volumeDevice = dev_for_path(argv[i]);
			
			if (volumeDevice < 0) {
				fprintf(stderr, "%s: can't get information about volume: %s\n", argv[0], argv[i]);
				return 1;
			}
		}
	}

	if (fs_stat_dev(volumeDevice, &volumeInfo) == B_OK) {
		if (volumeInfo.flags & isVolumeFlags)
			printf("yes\n");
		else
			printf("no\n");

		return 0;
	} else {
		fprintf(stderr, "%s: can't get information about dev_t: %ld\n", argv[0], volumeDevice);
		return 1;
	}
}