support.h revision 6aae2a9b70e9f88926baad94c1eea40e0b534f01 
1/* This program is copyright (c) 2009 by Roderick W. Smith. It is distributed
2  under the terms of the GNU GPL version 2, as detailed in the COPYING file. */
3
4#include <stdint.h>
5#include <stdlib.h>
6#include <string>
7
8#ifndef __GPTSUPPORT
9#define __GPTSUPPORT
10
11#define GPTFDISK_VERSION "0.7.1.1"
12
13#if defined (__FreeBSD__) || defined (__FreeBSD_kernel__) || defined (__APPLE__)
14// Darwin (Mac OS) only: disk IOCTLs are different, and there is no lseek64
15// This used to use __DARWIN_UNIX03 rather than __APPLE__, but __APPLE__
16// is more general. If the code fails to work on older versions of OS X/
17// Darwin, this may need to be changed back (and in various .cc files).
18#include <sys/disk.h>
19#define lseek64 lseek
20#endif
21
22// Linux only....
23#ifdef __linux__
24#include <linux/fs.h>
25#endif
26
27// Microsoft Visual C++ only
28#if defined (_MSC_VER)
29#define sscanf sscanf_s
30#define strcpy strcpy_s
31#define sprintf sprintf_s
32#endif
33
34// Set this as a default
35#define SECTOR_SIZE UINT32_C(512)
36
37// Signatures for Apple (APM) disks, multiplied by 0x100000000
38#define APM_SIGNATURE1 UINT64_C(0x00004D5000000000)
39#define APM_SIGNATURE2 UINT64_C(0x0000535400000000)
40
41// Maximum line length on some input functions
42#define MAX_LINE_LENGTH 255
43
44/**************************
45 * Some GPT constants.... *
46 **************************/
47
48#define GPT_SIGNATURE UINT64_C(0x5452415020494645)
49
50// Number and size of GPT entries...
51#define NUM_GPT_ENTRIES 128
52#define GPT_SIZE 128
53#define HEADER_SIZE UINT32_C(92)
54#define GPT_RESERVED 420
55#define NAME_SIZE 72
56
57using namespace std;
58
59string ReadString(void);
60int GetNumber(int low, int high, int def, const string & prompt);
61char GetYN(void);
62uint64_t GetSectorNum(uint64_t low, uint64_t high, uint64_t def, uint64_t sSize, const std::string& prompt);
63uint64_t IeeeToInt(string IeeeValue, uint64_t sSize, uint64_t low, uint64_t high, uint64_t def = 0);
64string BytesToIeee(uint64_t size, uint32_t sectorSize = 1);
65unsigned char StrToHex(const string & input, unsigned int position);
66int IsHex(string input); // Returns 1 if input can be hexadecimal number....
67int IsLittleEndian(void); // Returns 1 if CPU is little-endian, 0 if it's big-endian
68void ReverseBytes(void* theValue, int numBytes); // Reverses byte-order of theValue
69
70#endif
71