xref: /aosp_15_r20/external/gptfdisk/support.h (revision 57696d54d05c64fd1b1787f8371dbcf104911cfb)
1*57696d54SAkhilesh Sanikop /* This program is copyright (c) 2009-2022 by Roderick W. Smith. It is distributed
2*57696d54SAkhilesh Sanikop   under the terms of the GNU GPL version 2, as detailed in the COPYING file. */
3*57696d54SAkhilesh Sanikop 
4*57696d54SAkhilesh Sanikop #ifndef __GPTSUPPORT
5*57696d54SAkhilesh Sanikop #define __GPTSUPPORT
6*57696d54SAkhilesh Sanikop 
7*57696d54SAkhilesh Sanikop #include <stdint.h>
8*57696d54SAkhilesh Sanikop #include <stdlib.h>
9*57696d54SAkhilesh Sanikop #include <string>
10*57696d54SAkhilesh Sanikop 
11*57696d54SAkhilesh Sanikop #define GPTFDISK_VERSION "1.0.9.2"
12*57696d54SAkhilesh Sanikop 
13*57696d54SAkhilesh Sanikop #if defined (__FreeBSD__) || defined (__FreeBSD_kernel__) || defined (__APPLE__)
14*57696d54SAkhilesh Sanikop // Darwin (Mac OS) & FreeBSD: disk IOCTLs are different, and there is no lseek64
15*57696d54SAkhilesh Sanikop #include <sys/disk.h>
16*57696d54SAkhilesh Sanikop #define lseek64 lseek
17*57696d54SAkhilesh Sanikop #endif
18*57696d54SAkhilesh Sanikop 
19*57696d54SAkhilesh Sanikop #if defined (__FreeBSD__) || defined (__FreeBSD_kernel__)
20*57696d54SAkhilesh Sanikop #define DEFAULT_GPT_TYPE 0xA503
21*57696d54SAkhilesh Sanikop #endif
22*57696d54SAkhilesh Sanikop 
23*57696d54SAkhilesh Sanikop #ifdef __APPLE__
24*57696d54SAkhilesh Sanikop #define DEFAULT_GPT_TYPE 0xAF00
25*57696d54SAkhilesh Sanikop #endif
26*57696d54SAkhilesh Sanikop 
27*57696d54SAkhilesh Sanikop #ifdef _WIN32
28*57696d54SAkhilesh Sanikop #define DEFAULT_GPT_TYPE 0x0700
29*57696d54SAkhilesh Sanikop #endif
30*57696d54SAkhilesh Sanikop 
31*57696d54SAkhilesh Sanikop #ifdef __sun__
32*57696d54SAkhilesh Sanikop #define DEFAULT_GPT_TYPE 0xbf01
33*57696d54SAkhilesh Sanikop #endif
34*57696d54SAkhilesh Sanikop 
35*57696d54SAkhilesh Sanikop // Microsoft Visual C++ only
36*57696d54SAkhilesh Sanikop #if defined (_MSC_VER)
37*57696d54SAkhilesh Sanikop #define sscanf sscanf_s
38*57696d54SAkhilesh Sanikop #define strcpy strcpy_s
39*57696d54SAkhilesh Sanikop #define sprintf sprintf_s
40*57696d54SAkhilesh Sanikop #endif
41*57696d54SAkhilesh Sanikop 
42*57696d54SAkhilesh Sanikop // Linux only....
43*57696d54SAkhilesh Sanikop #ifdef __linux__
44*57696d54SAkhilesh Sanikop #include <linux/fs.h>
45*57696d54SAkhilesh Sanikop #define DEFAULT_GPT_TYPE 0x8300
46*57696d54SAkhilesh Sanikop #endif
47*57696d54SAkhilesh Sanikop 
48*57696d54SAkhilesh Sanikop #ifndef DEFAULT_GPT_TYPE
49*57696d54SAkhilesh Sanikop #define DEFAULT_GPT_TYPE 0x8300
50*57696d54SAkhilesh Sanikop #endif
51*57696d54SAkhilesh Sanikop 
52*57696d54SAkhilesh Sanikop // Set this as a default
53*57696d54SAkhilesh Sanikop #define SECTOR_SIZE UINT32_C(512)
54*57696d54SAkhilesh Sanikop 
55*57696d54SAkhilesh Sanikop // Signatures for Apple (APM) disks, multiplied by 0x100000000
56*57696d54SAkhilesh Sanikop #define APM_SIGNATURE1 UINT64_C(0x00004D5000000000)
57*57696d54SAkhilesh Sanikop #define APM_SIGNATURE2 UINT64_C(0x0000535400000000)
58*57696d54SAkhilesh Sanikop 
59*57696d54SAkhilesh Sanikop /**************************
60*57696d54SAkhilesh Sanikop  * Some GPT constants.... *
61*57696d54SAkhilesh Sanikop  **************************/
62*57696d54SAkhilesh Sanikop 
63*57696d54SAkhilesh Sanikop #define GPT_SIGNATURE UINT64_C(0x5452415020494645)
64*57696d54SAkhilesh Sanikop 
65*57696d54SAkhilesh Sanikop // Number and size of GPT entries...
66*57696d54SAkhilesh Sanikop #define NUM_GPT_ENTRIES 128
67*57696d54SAkhilesh Sanikop #define GPT_SIZE 128
68*57696d54SAkhilesh Sanikop #define HEADER_SIZE UINT32_C(92)
69*57696d54SAkhilesh Sanikop #define GPT_RESERVED 420
70*57696d54SAkhilesh Sanikop #define NAME_SIZE 36 // GPT allows 36 UTF-16LE code units for a name in a 128 byte partition entry
71*57696d54SAkhilesh Sanikop 
72*57696d54SAkhilesh Sanikop std::string ReadString(void);
73*57696d54SAkhilesh Sanikop uint64_t GetNumber(uint64_t low, uint64_t high, uint64_t def, const std::string & prompt);
74*57696d54SAkhilesh Sanikop char GetYN(void);
75*57696d54SAkhilesh Sanikop uint64_t IeeeToInt(std::string IeeeValue, uint64_t sSize, uint64_t low, uint64_t high, uint32_t sectorAlignment, uint64_t def = 0);
76*57696d54SAkhilesh Sanikop std::string BytesToIeee(uint64_t size, uint32_t sectorSize);
77*57696d54SAkhilesh Sanikop unsigned char StrToHex(const std::string & input, unsigned int position);
78*57696d54SAkhilesh Sanikop int IsHex(std::string input); // Returns 1 if input can be hexadecimal number....
79*57696d54SAkhilesh Sanikop int IsLittleEndian(void); // Returns 1 if CPU is little-endian, 0 if it's big-endian
80*57696d54SAkhilesh Sanikop void ReverseBytes(void* theValue, int numBytes); // Reverses byte-order of theValue
81*57696d54SAkhilesh Sanikop void WinWarning(void);
82*57696d54SAkhilesh Sanikop std::string ToLower(const std::string& input);
83*57696d54SAkhilesh Sanikop 
84*57696d54SAkhilesh Sanikop #endif
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