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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2021-09-21 01:36:47 +0200
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2021-09-21 01:41:25 +0200
commit5e547b127f25b0d4f526fdb4126b95c4ba03c4b2 (patch)
treed44d9d200f8c8040bab0a6424e78b68596bc935b /src
parent635213c8264c34e65b6711694e0b2cfd7fa6a078 (diff)
downloadVeraCrypt-master.tar.gz
VeraCrypt-master.zip
Linux/macOS: Add CLI switch (--size=max) and UI option to give a file container all available free space.HEADmaster
This commit also makes --size switch accept KiB/MiB/GiB/TiB prefixes and adds TiB choice in UI.
Diffstat (limited to 'src')
-rw-r--r--src/Common/Language.xml1
-rw-r--r--src/Main/CommandLineInterface.cpp67
-rw-r--r--src/Main/Forms/Forms.cpp8
-rw-r--r--src/Main/Forms/Forms.h2
-rw-r--r--src/Main/Forms/TrueCrypt.fbp98
-rw-r--r--src/Main/Forms/VolumeSizeWizardPage.cpp58
-rw-r--r--src/Main/Forms/VolumeSizeWizardPage.h4
-rw-r--r--src/Main/TextUserInterface.cpp102
-rw-r--r--src/Main/UserInterface.cpp3
9 files changed, 269 insertions, 74 deletions
diff --git a/src/Common/Language.xml b/src/Common/Language.xml
index e2a0fc46..6c0c64da 100644
--- a/src/Common/Language.xml
+++ b/src/Common/Language.xml
@@ -1566,6 +1566,7 @@
<entry lang="en" key="VOLUME_LOCATION">Volume Location</entry>
<entry lang="en" key="VOLUME_HOST_IN_USE">WARNING: The host file/device {0} is already in use!\n\nIgnoring this can cause undesired results including system instability. All applications that might be using the host file/device should be closed before mounting the volume.\n\nContinue mounting?</entry>
<entry lang="en" key="CANT_INSTALL_WITH_EXE_OVER_MSI">VeraCrypt was previously installed using an MSI package and so it can't be updated using the standard installer.\n\nPlease use the MSI package to update your VeraCrypt installation.</entry>
+ <entry lang="en" key="IDC_USE_ALL_FREE_SPACE">Use all available free space</entry>
</localization>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="VeraCrypt">
diff --git a/src/Main/CommandLineInterface.cpp b/src/Main/CommandLineInterface.cpp
index 0ae246c6..0be53bd6 100644
--- a/src/Main/CommandLineInterface.cpp
+++ b/src/Main/CommandLineInterface.cpp
@@ -574,40 +574,45 @@ namespace VeraCrypt
if (parser.Found (L"size", &str))
{
- uint64 multiplier;
- wxChar lastChar = str [str.Length () - 1];
- if (lastChar >= wxT('0') && lastChar <= wxT('9'))
- multiplier = 1;
- else if (lastChar == wxT('K') || lastChar == wxT('k'))
- multiplier = BYTES_PER_KB;
- else if (lastChar == wxT('M') || lastChar == wxT('m'))
- multiplier = BYTES_PER_MB;
- else if (lastChar == wxT('G') || lastChar == wxT('g'))
- multiplier = BYTES_PER_GB;
- else if (lastChar == wxT('T') || lastChar == wxT('t'))
- multiplier = BYTES_PER_TB;
- else
- throw_err (LangString["PARAMETER_INCORRECT"] + L": " + str);
-
- // remove suffix if present
- if (multiplier != 1)
- str.RemoveLast ();
- // check that we only have digits in the string
- size_t index = str.find_first_not_of (wxT("0123456789"));
- if (index != (size_t) wxNOT_FOUND)
+ if (str.CmpNoCase (wxT("max")) == 0)
{
- // restore last characater for error display
- if (multiplier != 1)
- str += lastChar;
- throw_err (LangString["PARAMETER_INCORRECT"] + L": " + str);
+ ArgSize = (uint64) -1; // indicator of maximum available size
}
- try
- {
- ArgSize = multiplier * StringConverter::ToUInt64 (wstring (str));
- }
- catch (...)
+ else
{
- throw_err (LangString["PARAMETER_INCORRECT"] + L": " + str);
+ uint64 multiplier;
+ wxString originalStr = str;
+ size_t index = str.find_first_not_of (wxT("0123456789"));
+ if (index == 0)
+ {
+ throw_err (LangString["PARAMETER_INCORRECT"] + L": " + str);
+ }
+ else if (index != (size_t) wxNOT_FOUND)
+ {
+ wxString sizeSuffix = str.Mid(index);
+ if (sizeSuffix.CmpNoCase(wxT("K")) == 0 || sizeSuffix.CmpNoCase(wxT("KiB")) == 0)
+ multiplier = BYTES_PER_KB;
+ else if (sizeSuffix.CmpNoCase(wxT("M")) == 0 || sizeSuffix.CmpNoCase(wxT("MiB")) == 0)
+ multiplier = BYTES_PER_MB;
+ else if (sizeSuffix.CmpNoCase(wxT("G")) == 0 || sizeSuffix.CmpNoCase(wxT("GiB")) == 0)
+ multiplier = BYTES_PER_GB;
+ else if (sizeSuffix.CmpNoCase(wxT("T")) == 0 || sizeSuffix.CmpNoCase(wxT("TiB")) == 0)
+ multiplier = BYTES_PER_TB;
+ else
+ throw_err (LangString["PARAMETER_INCORRECT"] + L": " + str);
+
+ str = str.Left (index);
+ }
+ else
+ multiplier = 1;
+ try
+ {
+ ArgSize = multiplier * StringConverter::ToUInt64 (wstring (str));
+ }
+ catch (...)
+ {
+ throw_err (LangString["PARAMETER_INCORRECT"] + L": " + originalStr);
+ }
}
}
diff --git a/src/Main/Forms/Forms.cpp b/src/Main/Forms/Forms.cpp
index 0af3e2a6..d281febc 100644
--- a/src/Main/Forms/Forms.cpp
+++ b/src/Main/Forms/Forms.cpp
@@ -3625,6 +3625,12 @@ VolumeSizeWizardPageBase::VolumeSizeWizardPageBase( wxWindow* parent, wxWindowID
bSizer99->Add( 0, 0, 0, wxEXPAND|wxTOP|wxBOTTOM, 5 );
+ UseAllFreeSpaceCheckBox = new wxCheckBox( this, wxID_ANY, _("IDC_USE_ALL_FREE_SPACE"), wxDefaultPosition, wxDefaultSize, 0 );
+ bSizer99->Add( UseAllFreeSpaceCheckBox, 0, wxALL|wxEXPAND, 5 );
+
+
+ bSizer99->Add( 0, 0, 0, wxBOTTOM|wxEXPAND|wxTOP, 5 );
+
FreeSpaceStaticText = new wxStaticText( this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0 );
FreeSpaceStaticText->Wrap( -1 );
@@ -3649,6 +3655,7 @@ VolumeSizeWizardPageBase::VolumeSizeWizardPageBase( wxWindow* parent, wxWindowID
// Connect Events
VolumeSizeTextCtrl->Connect( wxEVT_COMMAND_TEXT_UPDATED, wxCommandEventHandler( VolumeSizeWizardPageBase::OnVolumeSizeTextChanged ), NULL, this );
VolumeSizePrefixChoice->Connect( wxEVT_COMMAND_CHOICE_SELECTED, wxCommandEventHandler( VolumeSizeWizardPageBase::OnVolumeSizePrefixSelected ), NULL, this );
+ UseAllFreeSpaceCheckBox->Connect( wxEVT_COMMAND_CHECKBOX_CLICKED, wxCommandEventHandler( VolumeSizeWizardPageBase::OnUseAllFreeSpaceCheckBoxClick ), NULL, this );
}
VolumeSizeWizardPageBase::~VolumeSizeWizardPageBase()
@@ -3656,6 +3663,7 @@ VolumeSizeWizardPageBase::~VolumeSizeWizardPageBase()
// Disconnect Events
VolumeSizeTextCtrl->Disconnect( wxEVT_COMMAND_TEXT_UPDATED, wxCommandEventHandler( VolumeSizeWizardPageBase::OnVolumeSizeTextChanged ), NULL, this );
VolumeSizePrefixChoice->Disconnect( wxEVT_COMMAND_CHOICE_SELECTED, wxCommandEventHandler( VolumeSizeWizardPageBase::OnVolumeSizePrefixSelected ), NULL, this );
+ UseAllFreeSpaceCheckBox->Disconnect( wxEVT_COMMAND_CHECKBOX_CLICKED, wxCommandEventHandler( VolumeSizeWizardPageBase::OnUseAllFreeSpaceCheckBoxClick ), NULL, this );
}
diff --git a/src/Main/Forms/Forms.h b/src/Main/Forms/Forms.h
index 3ea89763..b1756876 100644
--- a/src/Main/Forms/Forms.h
+++ b/src/Main/Forms/Forms.h
@@ -1063,12 +1063,14 @@ namespace VeraCrypt
protected:
wxTextCtrl* VolumeSizeTextCtrl;
wxChoice* VolumeSizePrefixChoice;
+ wxCheckBox* UseAllFreeSpaceCheckBox;
wxStaticText* FreeSpaceStaticText;
wxStaticText* InfoStaticText;
// Virtual event handlers, overide them in your derived class
virtual void OnVolumeSizeTextChanged( wxCommandEvent& event ) { event.Skip(); }
virtual void OnVolumeSizePrefixSelected( wxCommandEvent& event ) { event.Skip(); }
+ virtual void OnUseAllFreeSpaceCheckBoxClick( wxCommandEvent& event ) { event.Skip(); }
public:
diff --git a/src/Main/Forms/TrueCrypt.fbp b/src/Main/Forms/TrueCrypt.fbp
index 927a60b9..24689fcf 100644
--- a/src/Main/Forms/TrueCrypt.fbp
+++ b/src/Main/Forms/TrueCrypt.fbp
@@ -29553,6 +29553,104 @@
<property name="border">5</property>
<property name="flag">wxALL|wxEXPAND</property>
<property name="proportion">0</property>
+ <object class="wxCheckBox" expanded="0">
+ <property name="BottomDockable">1</property>
+ <property name="LeftDockable">1</property>
+ <property name="RightDockable">1</property>
+ <property name="TopDockable">1</property>
+ <property name="aui_layer"></property>
+ <property name="aui_name"></property>
+ <property name="aui_position"></property>
+ <property name="aui_row"></property>
+ <property name="best_size"></property>
+ <property name="bg"></property>
+ <property name="caption"></property>
+ <property name="caption_visible">1</property>
+ <property name="center_pane">0</property>
+ <property name="checked">0</property>
+ <property name="close_button">1</property>
+ <property name="context_help"></property>
+ <property name="context_menu">1</property>
+ <property name="default_pane">0</property>
+ <property name="dock">Dock</property>
+ <property name="dock_fixed">0</property>
+ <property name="docking">Left</property>
+ <property name="enabled">1</property>
+ <property name="fg"></property>
+ <property name="floatable">1</property>
+ <property name="font"></property>
+ <property name="gripper">0</property>
+ <property name="hidden">0</property>
+ <property name="id">wxID_ANY</property>
+ <property name="label">IDC_USE_ALL_FREE_SPACE</property>
+ <property name="max_size"></property>
+ <property name="maximize_button">0</property>
+ <property name="maximum_size"></property>
+ <property name="min_size"></property>
+ <property name="minimize_button">0</property>
+ <property name="minimum_size"></property>
+ <property name="moveable">1</property>
+ <property name="name">UseAllFreeSpaceCheckBox</property>
+ <property name="pane_border">1</property>
+ <property name="pane_position"></property>
+ <property name="pane_size"></property>
+ <property name="permission">protected</property>
+ <property name="pin_button">1</property>
+ <property name="pos"></property>
+ <property name="resize">Resizable</property>
+ <property name="show">1</property>
+ <property name="size"></property>
+ <property name="style"></property>
+ <property name="subclass">; forward_declare</property>
+ <property name="toolbar_pane">0</property>
+ <property name="tooltip"></property>
+ <property name="validator_data_type"></property>
+ <property name="validator_style">wxFILTER_NONE</property>
+ <property name="validator_type">wxDefaultValidator</property>
+ <property name="validator_variable"></property>
+ <property name="window_extra_style"></property>
+ <property name="window_name"></property>
+ <property name="window_style"></property>
+ <event name="OnChar"></event>
+ <event name="OnCheckBox">OnUseAllFreeSpaceCheckBoxClick</event>
+ <event name="OnEnterWindow"></event>
+ <event name="OnEraseBackground"></event>
+ <event name="OnKeyDown"></event>
+ <event name="OnKeyUp"></event>
+ <event name="OnKillFocus"></event>
+ <event name="OnLeaveWindow"></event>
+ <event name="OnLeftDClick"></event>
+ <event name="OnLeftDown"></event>
+ <event name="OnLeftUp"></event>
+ <event name="OnMiddleDClick"></event>
+ <event name="OnMiddleDown"></event>
+ <event name="OnMiddleUp"></event>
+ <event name="OnMotion"></event>
+ <event name="OnMouseEvents"></event>
+ <event name="OnMouseWheel"></event>
+ <event name="OnPaint"></event>
+ <event name="OnRightDClick"></event>
+ <event name="OnRightDown"></event>
+ <event name="OnRightUp"></event>
+ <event name="OnSetFocus"></event>
+ <event name="OnSize"></event>
+ <event name="OnUpdateUI"></event>
+ </object>
+ </object>
+ <object class="sizeritem" expanded="0">
+ <property name="border">5</property>
+ <property name="flag">wxBOTTOM|wxEXPAND|wxTOP</property>
+ <property name="proportion">0</property>
+ <object class="spacer" expanded="0">
+ <property name="height">0</property>
+ <property name="permission">protected</property>
+ <property name="width">0</property>
+ </object>
+ </object>
+ <object class="sizeritem" expanded="0">
+ <property name="border">5</property>
+ <property name="flag">wxALL|wxEXPAND</property>
+ <property name="proportion">0</property>
<object class="wxStaticText" expanded="1">
<property name="BottomDockable">1</property>
<property name="LeftDockable">1</property>
diff --git a/src/Main/Forms/VolumeSizeWizardPage.cpp b/src/Main/Forms/VolumeSizeWizardPage.cpp
index 47d73983..61427ea5 100644
--- a/src/Main/Forms/VolumeSizeWizardPage.cpp
+++ b/src/Main/Forms/VolumeSizeWizardPage.cpp
@@ -24,9 +24,10 @@ namespace VeraCrypt
SectorSize (sectorSize),
AvailableDiskSpace (0)
{
- VolumeSizePrefixChoice->Append (LangString["KB"], reinterpret_cast <void *> (1024));
- VolumeSizePrefixChoice->Append (LangString["MB"], reinterpret_cast <void *> (1024 * 1024));
- VolumeSizePrefixChoice->Append (LangString["GB"], reinterpret_cast <void *> (1024 * 1024 * 1024));
+ VolumeSizePrefixChoice->Append (LangString["KB"], reinterpret_cast <void *> (1));
+ VolumeSizePrefixChoice->Append (LangString["MB"], reinterpret_cast <void *> (2));
+ VolumeSizePrefixChoice->Append (LangString["GB"], reinterpret_cast <void *> (3));
+ VolumeSizePrefixChoice->Append (LangString["TB"], reinterpret_cast <void *> (4));
VolumeSizePrefixChoice->Select (Prefix::MB);
wxLongLong diskSpace = 0;
@@ -34,6 +35,7 @@ namespace VeraCrypt
{
VolumeSizeTextCtrl->Disable();
VolumeSizeTextCtrl->SetValue (L"");
+ UseAllFreeSpaceCheckBox->Disable();
}
else
{
@@ -74,13 +76,25 @@ namespace VeraCrypt
uint64 VolumeSizeWizardPage::GetVolumeSize () const
{
uint64 prefixMult = 1;
- int selection = VolumeSizePrefixChoice->GetSelection();
- if (selection == wxNOT_FOUND)
- return 0;
-
- prefixMult = reinterpret_cast <uint64> (VolumeSizePrefixChoice->GetClientData (selection));
+ uint64 val;
+ if (UseAllFreeSpaceCheckBox->IsChecked ())
+ {
+ val = AvailableDiskSpace;
+ }
+ else
+ {
+ int selection = VolumeSizePrefixChoice->GetSelection();
+ if (selection == wxNOT_FOUND)
+ return 0;
- uint64 val = StringConverter::ToUInt64 (wstring (VolumeSizeTextCtrl->GetValue()));
+ uint64 counter = reinterpret_cast <uint64> (VolumeSizePrefixChoice->GetClientData (selection));
+ while (counter)
+ {
+ prefixMult *= 1024;
+ counter--;
+ }
+ val = StringConverter::ToUInt64 (wstring(VolumeSizeTextCtrl->GetValue()));
+ }
if (val <= 0x7fffFFFFffffFFFFull / prefixMult)
{
val *= prefixMult;
@@ -98,7 +112,7 @@ namespace VeraCrypt
bool VolumeSizeWizardPage::IsValid ()
{
- if (!VolumeSizeTextCtrl->GetValue().empty() && Validate())
+ if ((!VolumeSizeTextCtrl->GetValue().empty() || UseAllFreeSpaceCheckBox->IsChecked ()) && Validate())
{
try
{
@@ -126,7 +140,12 @@ namespace VeraCrypt
return;
}
- if (size % (1024 * 1024 * 1024) == 0)
+ if (size % (1024ULL * 1024ULL * 1024ULL * 1024ULL) == 0)
+ {
+ size /= 1024ULL * 1024ULL * 1024ULL * 1024ULL;
+ VolumeSizePrefixChoice->Select (Prefix::TB);
+ }
+ else if (size % (1024 * 1024 * 1024) == 0)
{
size /= 1024 * 1024 * 1024;
VolumeSizePrefixChoice->Select (Prefix::GB);
@@ -144,4 +163,21 @@ namespace VeraCrypt
VolumeSizeTextCtrl->SetValue (StringConverter::FromNumber (size));
}
+
+ void VolumeSizeWizardPage::OnUseAllFreeSpaceCheckBoxClick( wxCommandEvent& event )
+ {
+ if (UseAllFreeSpaceCheckBox->IsChecked ())
+ {
+ VolumeSizePrefixChoice->Select (Prefix::MB);
+ VolumeSizeTextCtrl->SetValue (L"");
+ VolumeSizePrefixChoice->Disable();
+ VolumeSizeTextCtrl->Disable();
+ }
+ else
+ {
+ VolumeSizePrefixChoice->Enable();
+ VolumeSizeTextCtrl->SetValue (L"");
+ VolumeSizeTextCtrl->Enable();
+ }
+ }
}
diff --git a/src/Main/Forms/VolumeSizeWizardPage.h b/src/Main/Forms/VolumeSizeWizardPage.h
index aac41f99..754bd691 100644
--- a/src/Main/Forms/VolumeSizeWizardPage.h
+++ b/src/Main/Forms/VolumeSizeWizardPage.h
@@ -37,13 +37,15 @@ namespace VeraCrypt
{
KB = 0,
MB,
- GB
+ GB,
+ TB
};
};
void OnBrowseButtonClick (wxCommandEvent& event);
void OnVolumeSizePrefixSelected (wxCommandEvent& event) { PageUpdatedEvent.Raise(); }
void OnVolumeSizeTextChanged (wxCommandEvent& event) { PageUpdatedEvent.Raise(); }
+ void OnUseAllFreeSpaceCheckBoxClick( wxCommandEvent& event );
uint64 MaxVolumeSize;
bool MaxVolumeSizeValid;
diff --git a/src/Main/TextUserInterface.cpp b/src/Main/TextUserInterface.cpp
index 2cacbb1b..7233b8b6 100644
--- a/src/Main/TextUserInterface.cpp
+++ b/src/Main/TextUserInterface.cpp
@@ -646,6 +646,29 @@ namespace VeraCrypt
}
else
{
+ uint64 AvailableDiskSpace = 0;
+ wxLongLong diskSpace = 0;
+ if (wxGetDiskSpace (wxFileName (wstring (options->Path)).GetPath(), nullptr, &diskSpace))
+ {
+ AvailableDiskSpace = (uint64) diskSpace.GetValue ();
+ if (maxVolumeSize > AvailableDiskSpace)
+ maxVolumeSize = AvailableDiskSpace;
+ }
+
+ if (options->Size == (uint64) (-1))
+ {
+ if (AvailableDiskSpace)
+ {
+ // caller requesting maximum size
+ // we use maxVolumeSize because it is guaranteed to be less of equal to AvailableDiskSpace
+ options->Size = maxVolumeSize;
+ }
+ else
+ {
+ throw_err (_("Failed to get available disk space on the selected target."));
+ }
+ }
+
options->Quick = false;
uint32 sectorSizeRem = options->Size % options->SectorSize;
@@ -657,43 +680,62 @@ namespace VeraCrypt
if (Preferences.NonInteractive)
throw MissingArgument (SRC_POS);
- wstring sizeStr = AskString (options->Type == VolumeType::Hidden ? _("\nEnter hidden volume size (sizeK/size[M]/sizeG): ") : _("\nEnter volume size (sizeK/size[M]/sizeG): "));
uint64 multiplier = 1024 * 1024;
-
- if (sizeStr.find (L"K") != string::npos)
- {
- multiplier = 1024;
- sizeStr.resize (sizeStr.size() - 1);
- }
- else if (sizeStr.find (L"M") != string::npos)
+ wxString sizeStr = AskString (options->Type == VolumeType::Hidden ? _("\nEnter hidden volume size (sizeK/size[M]/sizeG/sizeT/max): ") : _("\nEnter volume size (sizeK/size[M]/sizeG.sizeT/max): "));
+ if (sizeStr.CmpNoCase(wxT("max")) == 0)
{
- sizeStr.resize (sizeStr.size() - 1);
- }
- else if (sizeStr.find (L"G") != string::npos)
- {
- multiplier = 1024 * 1024 * 1024;
- sizeStr.resize (sizeStr.size() - 1);
+ multiplier = 1;
+ if (AvailableDiskSpace)
+ {
+ // caller requesting maximum size
+ // we use maxVolumeSize because it is guaranteed to be less of equal to AvailableDiskSpace
+ options->Size = maxVolumeSize;
+ }
+ else
+ {
+ throw_err (_("Failed to get available disk space on the selected target."));
+ }
}
- else if (sizeStr.find (L"T") != string::npos)
+ else
{
- multiplier = (uint64) 1024 * 1024 * 1024 * 1024;
- sizeStr.resize (sizeStr.size() - 1);
- }
+ multiplier = 1024 * 1024;
+ size_t index = sizeStr.find_first_not_of (wxT("0123456789"));
+ if (index == 0)
+ {
+ continue;
+ }
+ else if (index != (size_t) wxNOT_FOUND)
+ {
+ wxString sizeSuffix = sizeStr.Mid(index);
+ if (sizeSuffix.CmpNoCase(wxT("K")) == 0 || sizeSuffix.CmpNoCase(wxT("KiB")) == 0)
+ multiplier = BYTES_PER_KB;
+ else if (sizeSuffix.CmpNoCase(wxT("M")) == 0 || sizeSuffix.CmpNoCase(wxT("MiB")) == 0)
+ multiplier = BYTES_PER_MB;
+ else if (sizeSuffix.CmpNoCase(wxT("G")) == 0 || sizeSuffix.CmpNoCase(wxT("GiB")) == 0)
+ multiplier = BYTES_PER_GB;
+ else if (sizeSuffix.CmpNoCase(wxT("T")) == 0 || sizeSuffix.CmpNoCase(wxT("TiB")) == 0)
+ multiplier = BYTES_PER_TB;
+ else
+ continue;
- try
- {
- options->Size = StringConverter::ToUInt64 (sizeStr);
- options->Size *= multiplier;
+ sizeStr = sizeStr.Left (index);
+ }
- sectorSizeRem = options->Size % options->SectorSize;
- if (sectorSizeRem != 0)
- options->Size += options->SectorSize - sectorSizeRem;
- }
- catch (...)
- {
- options->Size = 0;
- continue;
+ try
+ {
+ options->Size = StringConverter::ToUInt64 (wstring(sizeStr));
+ }
+ catch (...)
+ {
+ options->Size = 0;
+ continue;
+ }
}
+ options->Size *= multiplier;
+
+ sectorSizeRem = options->Size % options->SectorSize;
+ if (sectorSizeRem != 0)
+ options->Size += options->SectorSize - sectorSizeRem;
if (options->Size < minVolumeSize)
{
diff --git a/src/Main/UserInterface.cpp b/src/Main/UserInterface.cpp
index b4bfe836..d0e2f9a1 100644
--- a/src/Main/UserInterface.cpp
+++ b/src/Main/UserInterface.cpp
@@ -1270,10 +1270,11 @@ namespace VeraCrypt
"--slot=SLOT\n"
" Use specified slot number when mounting, dismounting, or listing a volume.\n"
"\n"
- "--size=SIZE[K|M|G|T]\n"
+ "--size=SIZE[K|KiB|M|MiB|G|GiB|T|TiB] or --size=max\n"
" Use specified size when creating a new volume. If no suffix is indicated,\n"
" then SIZE is interpreted in bytes. Suffixes K, M, G or T can be used to\n"
" indicate a value in KiB, MiB, GiB or TiB respectively.\n"
+ " If max is specified, the new volume will use all available free disk space.\n"
"\n"
"-t, --text\n"
" Use text user interface. Graphical user interface is used by default if\n"