LineageOS/android_external_gptfdisk
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Revisions for 0.6.10 release

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This commit is contained in:
srs5694
2010-08-22 22:44:42 -04:00
parent f9312b0ca9
commit 9ddc14bb9b
12 changed files with 353 additions and 109 deletions
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163
attributes.cc
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@@ -8,36 +8,38 @@
#define __STDC_LIMIT_MACROS
#define __STDC_CONSTANT_MACROS
#include <string.h>
#include <stdint.h>
#include <stdio.h>
#include <iostream>
#include <sstream>
#include "attributes.h"
#include "support.h"
using namespace std;
// Constructor. Its main task is to initialize the attribute name
// data.
Attributes::Attributes(void) {
int i;
ostringstream temp;
string Attributes::atNames[NUM_ATR];
Attributes::staticInit Attributes::staticInitializer;
Attributes::staticInit::staticInit (void) {
ostringstream temp;
// Most bits are undefined, so start by giving them an
// appropriate name
for (i = 1; i < NUM_ATR; i++) {
for (int i = 0; i < NUM_ATR; i++) {
temp.str("");
temp << "Undefined bit #" << i;
atNames[i] = temp.str();
Attributes::atNames[i] = temp.str();
} // for
// Now reset those names that are defined....
atNames[0] = "system partition"; // required for computer to operate
atNames[1] = "hide from EFI";
atNames[2] = "legacy BIOS bootable";
atNames[60] = "read-only";
atNames[62] = "hidden";
atNames[63] = "do not automount";
} // Attributes constructor
Attributes::atNames[0] = "system partition"; // required for computer to operate
Attributes::atNames[1] = "hide from EFI";
Attributes::atNames[2] = "legacy BIOS bootable";
Attributes::atNames[60] = "read-only";
Attributes::atNames[62] = "hidden";
Attributes::atNames[63] = "do not automount";
} // Attributes::staticInit::staticInit
// Destructor.
Attributes::~Attributes(void) {
@@ -45,7 +47,8 @@ Attributes::~Attributes(void) {
// Display current attributes to user
void Attributes::DisplayAttributes(void) {
int i;
uint32_t i;
int numSet = 0;
cout << "Attribute value is ";
cout.setf(ios::uppercase);
@@ -53,37 +56,137 @@ void Attributes::DisplayAttributes(void) {
cout.width(16);
cout << hex << attributes << dec << ". Set fields are:\n";
for (i = 0; i < NUM_ATR; i++) {
if (((attributes >> i) % 2) == 1) { // bit is set
if (atNames[NUM_ATR - i - 1].substr(0, 9) != "Undefined")
cout << atNames[NUM_ATR - i - 1] << "\n";
if ((UINT64_C(1) << i) & attributes) {
cout << i << " (" << Attributes::GetAttributeName(i) << ")" << "\n";
numSet++;
} // if
} // for
cout.fill(' ');
if (numSet == 0)
cout << " No fields set\n";
cout << "\n";
} // Attributes::DisplayAttributes()
// Prompt user for attribute changes
void Attributes::ChangeAttributes(void) {
int response, i;
int response;
uint64_t bitValue;
cout << "Known attributes are:\n";
for (i = 0; i < NUM_ATR; i++) {
if (atNames[i].substr(0, 9) != "Undefined")
cout << i << " - " << atNames[i] << "\n";
} // for
ListAttributes();
cout << "\n";
do {
response = GetNumber(0, 64, -1, (string) "Toggle which attribute field (0-63, 64 to exit): ");
DisplayAttributes();
response = GetNumber(0, NUM_ATR, -1, "Toggle which attribute field (0-63, 64 to exit): ");
if (response != 64) {
bitValue = PowerOf2(uint32_t (NUM_ATR - response - 1)); // Find the integer value of the bit
if ((bitValue & attributes) == bitValue) { // bit is set
attributes -= bitValue; // so unset it
cout << "Have disabled the '" << atNames[response] << "' attribute.\n";
bitValue = UINT64_C(1) << response; // Find the integer value of the bit
if (bitValue & attributes) { // bit is set
attributes &= ~bitValue; // so unset it
cout << "Have disabled the '" << atNames[response] << "' attribute.\n";
} else { // bit is not set
attributes += bitValue; // so set it
attributes |= bitValue; // so set it
cout << "Have enabled the '" << atNames[response] << "' attribute.\n";
} // if/else
} // if
} while (response != 64);
} // Attributes::ChangeAttributes()
// Display all defined attributes on the screen (omits undefined bits).
void Attributes::ListAttributes(void) {
uint32_t bitNum;
string tempAttr;
for (bitNum = 0; bitNum < NUM_ATR; bitNum++) {
tempAttr = GetAttributeName(bitNum);
if (tempAttr.substr(0, 15) != "Undefined bit #" )
cout << bitNum << ": " << Attributes::GetAttributeName(bitNum) << "\n";
} // for
} // Attributes::ListAttributes
void Attributes::ShowAttributes(const uint32_t partNum) {
uint32_t bitNum;
bool bitset;
for (bitNum = 0; bitNum < 64; bitNum++) {
bitset = (UINT64_C(1) << bitNum) & attributes;
if (bitset) {
cout << partNum+1 << ":" << bitNum << ":" << bitset
<< " (" << Attributes::GetAttributeName(bitNum) << ")" << endl;
} // if
} // for
} // Attributes::ShowAttributes
// multifaceted attributes access
// returns true upon success, false upon failure
bool Attributes::OperateOnAttributes(const uint32_t partNum, const string& attributeOperator, const string& attributeBits) {
// attribute access opcode
typedef enum {
ao_or, ao_nand, ao_xor, ao_assignall, // operate on all attributes (bitmask)
ao_unknown, // must be after bitmask operators and before bitnum operators
ao_set, ao_clear, ao_toggle, ao_get // operate on a single attribute (bitnum)
} attribute_opcode_t; // typedef enum
// translate attribute operator into an attribute opcode
attribute_opcode_t attributeOpcode = ao_unknown; { // opcode is not known yet
if (attributeOperator == "or") attributeOpcode = ao_or;
else if (attributeOperator == "nand") attributeOpcode = ao_nand;
else if (attributeOperator == "xor") attributeOpcode = ao_xor;
else if (attributeOperator == "=") attributeOpcode = ao_assignall;
else if (attributeOperator == "set") attributeOpcode = ao_set;
else if (attributeOperator == "clear") attributeOpcode = ao_clear;
else if (attributeOperator == "toggle") attributeOpcode = ao_toggle;
else if (attributeOperator == "get") attributeOpcode = ao_get;
else {
cerr << "Unknown attributes operator: " << attributeOperator << endl;
return false;
} // else
} // attributeOpcode
// get bit mask if operating on entire attribute set
uint64_t attributeBitMask; { if (attributeOpcode < ao_unknown) {
if (1 != sscanf (attributeBits.c_str(), "%qx", (long long unsigned int*) &attributeBitMask)) {
cerr << "Could not convert hex attribute mask" << endl;
return false;
} // if
}} // attributeBitMask, if
// get bit number and calculate bit mask if operating on a single attribute
int bitNum; { if (attributeOpcode > ao_unknown) {
if (1 != sscanf (attributeBits.c_str(), "%d", &bitNum)) {
cerr << "Could not convert bit number" << endl;
return false;
} // if
const uint64_t one = 1;
attributeBitMask = one << bitNum;
}} // bitNum, if
switch (attributeOpcode) {
// assign all attributes at once
case ao_assignall: attributes = attributeBitMask; break;
// set individual attribute(s)
case ao_set:
case ao_or: attributes |= attributeBitMask; break;
// clear individual attribute(s)
case ao_clear:
case ao_nand: attributes &= ~attributeBitMask; break;
// toggle individual attribute(s)
case ao_toggle:
case ao_xor: attributes ^= attributeBitMask; break;
// display a single attribute
case ao_get: {
cout << partNum+1 << ":" << bitNum << ":" <<
bool (attributeBitMask & attributes) << endl;
break;
} // case ao_get
default: break; // will never get here
} // switch
return true;
} // Attributes::OperateOnAttributes()