Add an extra option to isvolume to check if the underlaying partition is
perhaps read-only, while the volume appears to be writable because of the filesystem overlays. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30327 a95241bf-73f2-0310-859d-f6bbb57e9c96
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@ -32,7 +32,6 @@ StdBinCommands
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finddir.c
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hd.c
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idestatus.c
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isvolume.cpp
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listarea.c
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listimage.c
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listport.c
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@ -110,6 +109,7 @@ StdBinCommands
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# Haiku-specific apps which need libbe.so
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if $(TARGET_PLATFORM) = haiku {
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StdBinCommands
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isvolume.cpp
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shutdown.cpp
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: be : $(haiku-utils_rsrc) ;
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}
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@ -1,17 +1,21 @@
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/*
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* Copyright 2002-2006, Haiku Inc. All rights reserved.
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* Copyright 2002-2009, Haiku Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Jonas Sundstrom, jonas.sundstrom@kirilla.com
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* Stephan Aßmus <superstippi@gmx.de>
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*/
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#include <fs_info.h>
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#include <stdio.h>
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#include <string.h>
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#include <DiskDevice.h>
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#include <DiskDeviceRoster.h>
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#include <Volume.h>
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static void
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usage()
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@ -20,6 +24,7 @@ usage()
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"Usage: isvolume {-OPTION} [volumename]\n"
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" Where OPTION is one of:\n"
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" -readonly - volume is read-only\n"
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" -readonly-partion - partition for the volume is read-only\n"
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" -query - volume supports queries\n"
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" -attribute - volume supports attributes\n"
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" -mime - volume supports MIME information\n"
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@ -29,7 +34,8 @@ usage()
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" If the option is true for the named volume, 'yes' is printed\n"
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" and if the option is false, 'no' is printed. Multiple options\n"
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" can be specified in which case all of them must be true.\n\n"
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" If no volume is specified, the volume of the current directory is assumed.\n");
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" If no volume is specified, the volume of the current directory is "
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"assumed.\n");
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}
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@ -39,6 +45,7 @@ main(int argc, char** argv)
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dev_t volumeDevice = dev_for_path(".");
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uint32 isVolumeFlags = 0;
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fs_info volumeInfo;
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bool doPartitionReadOnlyCheck = false;
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for (int i = 1; i < argc; i++) {
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if (!strcmp(argv[i], "--help")) {
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@ -47,35 +54,67 @@ main(int argc, char** argv)
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}
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if (argv[i][0] == '-') {
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if (! strcmp(argv[i], "-readonly"))
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if (strcmp(argv[i], "-readonly") == 0)
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isVolumeFlags |= B_FS_IS_READONLY;
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else if (! strcmp(argv[i], "-query"))
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else if (strcmp(argv[i], "-query") == 0)
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isVolumeFlags |= B_FS_HAS_QUERY;
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else if (! strcmp(argv[i], "-attribute"))
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else if (strcmp(argv[i], "-attribute") == 0)
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isVolumeFlags |= B_FS_HAS_ATTR;
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else if (! strcmp(argv[i], "-mime"))
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else if (strcmp(argv[i], "-mime") == 0)
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isVolumeFlags |= B_FS_HAS_MIME;
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else if (! strcmp(argv[i], "-shared"))
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else if (strcmp(argv[i], "-shared") == 0)
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isVolumeFlags |= B_FS_IS_SHARED;
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else if (! strcmp(argv[i], "-persistent"))
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else if (strcmp(argv[i], "-persistent") == 0)
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isVolumeFlags |= B_FS_IS_PERSISTENT;
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else if (! strcmp(argv[i], "-removable"))
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else if (strcmp(argv[i], "-removable") == 0)
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isVolumeFlags |= B_FS_IS_REMOVABLE;
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else if (strcmp(argv[i], "-readonly-partion"))
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doPartitionReadOnlyCheck = true;
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else {
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fprintf(stderr,
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"%s: option %s is not understood (use --help for help)\n", argv[0], argv[i]);
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"%s: option %s is not understood (use --help for help)\n",
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argv[0], argv[i]);
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return 1;
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}
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} else {
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volumeDevice = dev_for_path(argv[i]);
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if (volumeDevice < 0) {
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fprintf(stderr, "%s: can't get information about volume: %s\n", argv[0], argv[i]);
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fprintf(stderr, "%s: can't get information about volume: %s\n",
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argv[0], argv[i]);
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return 1;
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}
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}
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}
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if (doPartitionReadOnlyCheck) {
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// This requires an extra code-path, because volumes may now appear
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// writable, but only because of the "write" file-system overlay.
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BVolume volume(volumeDevice);
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status_t ret = volume.InitCheck();
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if (ret != B_OK) {
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fprintf(stderr, "%s: failed to get BVolume for device %ld: %s\n",
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argv[0], volumeDevice, strerror(ret));
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return 1;
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}
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BDiskDeviceRoster roster;
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BDiskDevice diskDevice;
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BPartition* partition;
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ret = roster.FindPartitionByVolume(volume, &diskDevice,
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&partition);
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if (ret != B_OK) {
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fprintf(stderr, "%s: failed to get partition for device %ld: %s\n",
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argv[0], volumeDevice, strerror(ret));
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return 1;
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}
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// check this option directly and not via fs_stat_dev()
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if (partition->IsReadOnly()) {
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printf("yes\n");
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return 0;
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}
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}
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if (fs_stat_dev(volumeDevice, &volumeInfo) == B_OK) {
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if (volumeInfo.flags & isVolumeFlags)
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printf("yes\n");
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@ -84,7 +123,8 @@ main(int argc, char** argv)
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return 0;
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} else {
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fprintf(stderr, "%s: can't get information about dev_t: %ld\n", argv[0], volumeDevice);
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fprintf(stderr, "%s: can't get information about dev_t: %ld\n",
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argv[0], volumeDevice);
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return 1;
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}
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}
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