1 // parttypes.cc
2 // Class to manage partition type codes -- a slight variant on MBR type
3 // codes, GUID type codes, and associated names.
4
5 /* This program is copyright (c) 2009-2014 by Roderick W. Smith. It is distributed
6 under the terms of the GNU GPL version 2, as detailed in the COPYING file. */
7
8 #define __STDC_LIMIT_MACROS
9 #ifndef __STDC_CONSTANT_MACROS
10 #define __STDC_CONSTANT_MACROS
11 #endif
12
13 #include <string.h>
14 #include <stdint.h>
15 #include <stdio.h>
16 #include <iostream>
17 #include "parttypes.h"
18
19 using namespace std;
20
21 int PartType::numInstances = 0;
22 AType* PartType::allTypes = NULL;
23 AType* PartType::lastType = NULL;
24
25 // Constructor. Its main task is to initialize the data list, but only
26 // if this is the first instance, since it's a static linked list.
27 // Partition type codes are MBR type codes multiplied by 0x0100, with
28 // additional related codes taking on following numbers. For instance,
29 // the FreeBSD disklabel code in MBR is 0xa5; here, it's 0xa500, with
30 // additional FreeBSD codes being 0xa501, 0xa502, and so on. This gives
31 // related codes similar numbers and (given appropriate entry positions
32 // in the linked list) keeps them together in the listings generated
33 // by typing "L" at the main gdisk menu.
PartType(void)34 PartType::PartType(void) : GUIDData() {
35 numInstances++;
36 if (numInstances == 1) {
37 AddAllTypes();
38 } // if
39 } // default constructor
40
PartType(const PartType & orig)41 PartType::PartType(const PartType & orig) : GUIDData(orig) {
42 numInstances++;
43 if (numInstances == 1) { // should never happen; just being paranoid
44 AddAllTypes();
45 } // if
46 } // PartType copy constructor
47
PartType(const GUIDData & orig)48 PartType::PartType(const GUIDData & orig) : GUIDData(orig) {
49 numInstances++;
50 if (numInstances == 1) {
51 AddAllTypes();
52 } // if
53 } // PartType copy constructor
54
~PartType(void)55 PartType::~PartType(void) {
56 AType* tempType;
57
58 numInstances--;
59 if (numInstances == 0) {
60 while (allTypes != NULL) {
61 tempType = allTypes;
62 allTypes = allTypes->next;
63 delete tempType;
64 } // while
65 } // if
66 } // destructor
67
68 // Add all partition type codes to the internal linked-list structure.
69 // Used by constructors.
70 // See http://www.win.tue.nl/~aeb/partitions/partition_types-1.html
71 // for a list of MBR partition type codes.
AddAllTypes(void)72 void PartType::AddAllTypes(void) {
73 // Start with the "unused entry," which should normally appear only
74 // on empty partition table entries....
75 AddType(0x0000, "00000000-0000-0000-0000-000000000000", "Unused entry", 0);
76
77 // DOS/Windows partition types, most of which are hidden from the "L" listing
78 // (they're available mainly for MBR-to-GPT conversions).
79 AddType(0x0100, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // FAT-12
80 AddType(0x0400, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // FAT-16 < 32M
81 AddType(0x0600, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // FAT-16
82 AddType(0x0700, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 1); // NTFS (or HPFS)
83 AddType(0x0b00, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // FAT-32
84 AddType(0x0c00, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // FAT-32 LBA
85 AddType(0x0c01, "E3C9E316-0B5C-4DB8-817D-F92DF00215AE", "Microsoft reserved");
86 AddType(0x0e00, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // FAT-16 LBA
87 AddType(0x1100, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // Hidden FAT-12
88 AddType(0x1400, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // Hidden FAT-16 < 32M
89 AddType(0x1600, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // Hidden FAT-16
90 AddType(0x1700, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // Hidden NTFS (or HPFS)
91 AddType(0x1b00, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // Hidden FAT-32
92 AddType(0x1c00, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // Hidden FAT-32 LBA
93 AddType(0x1e00, "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7", "Microsoft basic data", 0); // Hidden FAT-16 LBA
94 AddType(0x2700, "DE94BBA4-06D1-4D40-A16A-BFD50179D6AC", "Windows RE");
95
96 // Open Network Install Environment (ONIE) specific types.
97 // See http://www.onie.org/ and
98 // https://github.com/onie/onie/blob/master/rootconf/x86_64/sysroot-lib-onie/onie-blkdev-common
99 AddType(0x3000, "7412F7D5-A156-4B13-81DC-867174929325", "ONIE boot");
100 AddType(0x3001, "D4E6E2CD-4469-46F3-B5CB-1BFF57AFC149", "ONIE config");
101
102 // PowerPC reference platform boot partition
103 AddType(0x4100, "9E1A2D38-C612-4316-AA26-8B49521E5A8B", "PowerPC PReP boot");
104
105 // Windows LDM ("dynamic disk") types
106 AddType(0x4200, "AF9B60A0-1431-4F62-BC68-3311714A69AD", "Windows LDM data"); // Logical disk manager
107 AddType(0x4201, "5808C8AA-7E8F-42E0-85D2-E1E90434CFB3", "Windows LDM metadata"); // Logical disk manager
108
109 // An oddball IBM filesystem....
110 AddType(0x7501, "37AFFC90-EF7D-4E96-91C3-2D7AE055B174", "IBM GPFS"); // General Parallel File System (GPFS)
111
112 // ChromeOS-specific partition types...
113 // Values taken from vboot_reference/firmware/lib/cgptlib/include/gpt.h in
114 // ChromeOS source code, retrieved 12/23/2010. They're also at
115 // http://www.chromium.org/chromium-os/chromiumos-design-docs/disk-format.
116 // These have no MBR equivalents, AFAIK, so I'm using 0x7Fxx values, since they're close
117 // to the Linux values.
118 AddType(0x7f00, "FE3A2A5D-4F32-41A7-B725-ACCC3285A309", "ChromeOS kernel");
119 AddType(0x7f01, "3CB8E202-3B7E-47DD-8A3C-7FF2A13CFCEC", "ChromeOS root");
120 AddType(0x7f02, "2E0A753D-9E48-43B0-8337-B15192CB1B5E", "ChromeOS reserved");
121
122 // Linux-specific partition types....
123 AddType(0x8200, "0657FD6D-A4AB-43C4-84E5-0933C84B4F4F", "Linux swap"); // Linux swap (or Solaris on MBR)
124 AddType(0x8300, "0FC63DAF-8483-4772-8E79-3D69D8477DE4", "Linux filesystem"); // Linux native
125 AddType(0x8301, "8DA63339-0007-60C0-C436-083AC8230908", "Linux reserved");
126 // See http://www.freedesktop.org/software/systemd/man/systemd-gpt-auto-generator.html
127 // and http://www.freedesktop.org/wiki/Specifications/DiscoverablePartitionsSpec/
128 AddType(0x8302, "933AC7E1-2EB4-4F13-B844-0E14E2AEF915", "Linux /home"); // Linux /home (auto-mounted by systemd)
129 AddType(0x8303, "44479540-F297-41B2-9AF7-D131D5F0458A", "Linux x86 root (/)"); // Linux / on x86 (auto-mounted by systemd)
130 AddType(0x8304, "4F68BCE3-E8CD-4DB1-96E7-FBCAF984B709", "Linux x86-64 root (/)"); // Linux / on x86-64 (auto-mounted by systemd)
131 AddType(0x8305, "B921B045-1DF0-41C3-AF44-4C6F280D3FAE", "Linux ARM64 root (/)"); // Linux / on 64-bit ARM (auto-mounted by systemd)
132 AddType(0x8306, "3B8F8425-20E0-4F3B-907F-1A25A76F98E8", "Linux /srv"); // Linux /srv (auto-mounted by systemd)
133
134 // Used by Intel Rapid Start technology
135 AddType(0x8400, "D3BFE2DE-3DAF-11DF-BA40-E3A556D89593", "Intel Rapid Start");
136
137 // Another Linux type code....
138 AddType(0x8e00, "E6D6D379-F507-44C2-A23C-238F2A3DF928", "Linux LVM");
139
140 // FreeBSD partition types....
141 // Note: Rather than extract FreeBSD disklabel data, convert FreeBSD
142 // partitions in-place, and let FreeBSD sort out the details....
143 AddType(0xa500, "516E7CB4-6ECF-11D6-8FF8-00022D09712B", "FreeBSD disklabel");
144 AddType(0xa501, "83BD6B9D-7F41-11DC-BE0B-001560B84F0F", "FreeBSD boot");
145 AddType(0xa502, "516E7CB5-6ECF-11D6-8FF8-00022D09712B", "FreeBSD swap");
146 AddType(0xa503, "516E7CB6-6ECF-11D6-8FF8-00022D09712B", "FreeBSD UFS");
147 AddType(0xa504, "516E7CBA-6ECF-11D6-8FF8-00022D09712B", "FreeBSD ZFS");
148 AddType(0xa505, "516E7CB8-6ECF-11D6-8FF8-00022D09712B", "FreeBSD Vinum/RAID");
149
150 // Midnight BSD partition types....
151 AddType(0xa580, "85D5E45A-237C-11E1-B4B3-E89A8F7FC3A7", "Midnight BSD data");
152 AddType(0xa581, "85D5E45E-237C-11E1-B4B3-E89A8F7FC3A7", "Midnight BSD boot");
153 AddType(0xa582, "85D5E45B-237C-11E1-B4B3-E89A8F7FC3A7", "Midnight BSD swap");
154 AddType(0xa583, "0394Ef8B-237E-11E1-B4B3-E89A8F7FC3A7", "Midnight BSD UFS");
155 AddType(0xa584, "85D5E45D-237C-11E1-B4B3-E89A8F7FC3A7", "Midnight BSD ZFS");
156 AddType(0xa585, "85D5E45C-237C-11E1-B4B3-E89A8F7FC3A7", "Midnight BSD Vinum");
157
158 // A MacOS partition type, separated from others by NetBSD partition types...
159 AddType(0xa800, "55465300-0000-11AA-AA11-00306543ECAC", "Apple UFS"); // Mac OS X
160
161 // NetBSD partition types. Note that the main entry sets it up as a
162 // FreeBSD disklabel. I'm not 100% certain this is the correct behavior.
163 AddType(0xa900, "516E7CB4-6ECF-11D6-8FF8-00022D09712B", "FreeBSD disklabel", 0); // NetBSD disklabel
164 AddType(0xa901, "49F48D32-B10E-11DC-B99B-0019D1879648", "NetBSD swap");
165 AddType(0xa902, "49F48D5A-B10E-11DC-B99B-0019D1879648", "NetBSD FFS");
166 AddType(0xa903, "49F48D82-B10E-11DC-B99B-0019D1879648", "NetBSD LFS");
167 AddType(0xa904, "2DB519C4-B10F-11DC-B99B-0019D1879648", "NetBSD concatenated");
168 AddType(0xa905, "2DB519EC-B10F-11DC-B99B-0019D1879648", "NetBSD encrypted");
169 AddType(0xa906, "49F48DAA-B10E-11DC-B99B-0019D1879648", "NetBSD RAID");
170
171 // Mac OS partition types (See also 0xa800, above)....
172 AddType(0xab00, "426F6F74-0000-11AA-AA11-00306543ECAC", "Apple boot");
173 AddType(0xaf00, "48465300-0000-11AA-AA11-00306543ECAC", "Apple HFS/HFS+");
174 AddType(0xaf01, "52414944-0000-11AA-AA11-00306543ECAC", "Apple RAID");
175 AddType(0xaf02, "52414944-5F4F-11AA-AA11-00306543ECAC", "Apple RAID offline");
176 AddType(0xaf03, "4C616265-6C00-11AA-AA11-00306543ECAC", "Apple label");
177 AddType(0xaf04, "5265636F-7665-11AA-AA11-00306543ECAC", "AppleTV recovery");
178 AddType(0xaf05, "53746F72-6167-11AA-AA11-00306543ECAC", "Apple Core Storage");
179
180 // Solaris partition types (one of which is shared with MacOS)
181 AddType(0xbe00, "6A82CB45-1DD2-11B2-99A6-080020736631", "Solaris boot");
182 AddType(0xbf00, "6A85CF4D-1DD2-11B2-99A6-080020736631", "Solaris root");
183 AddType(0xbf01, "6A898CC3-1DD2-11B2-99A6-080020736631", "Solaris /usr & Mac ZFS"); // Solaris/MacOS
184 AddType(0xbf02, "6A87C46F-1DD2-11B2-99A6-080020736631", "Solaris swap");
185 AddType(0xbf03, "6A8B642B-1DD2-11B2-99A6-080020736631", "Solaris backup");
186 AddType(0xbf04, "6A8EF2E9-1DD2-11B2-99A6-080020736631", "Solaris /var");
187 AddType(0xbf05, "6A90BA39-1DD2-11B2-99A6-080020736631", "Solaris /home");
188 AddType(0xbf06, "6A9283A5-1DD2-11B2-99A6-080020736631", "Solaris alternate sector");
189 AddType(0xbf07, "6A945A3B-1DD2-11B2-99A6-080020736631", "Solaris Reserved 1");
190 AddType(0xbf08, "6A9630D1-1DD2-11B2-99A6-080020736631", "Solaris Reserved 2");
191 AddType(0xbf09, "6A980767-1DD2-11B2-99A6-080020736631", "Solaris Reserved 3");
192 AddType(0xbf0a, "6A96237F-1DD2-11B2-99A6-080020736631", "Solaris Reserved 4");
193 AddType(0xbf0b, "6A8D2AC7-1DD2-11B2-99A6-080020736631", "Solaris Reserved 5");
194
195 // I can find no MBR equivalents for these, but they're on the
196 // Wikipedia page for GPT, so here we go....
197 AddType(0xc001, "75894C1E-3AEB-11D3-B7C1-7B03A0000000", "HP-UX data");
198 AddType(0xc002, "E2A1E728-32E3-11D6-A682-7B03A0000000", "HP-UX service");
199
200 // See http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec
201 AddType(0xea00, "BC13C2FF-59E6-4262-A352-B275FD6F7172", "Freedesktop $BOOT");
202
203 // Type code for Haiku; uses BeOS MBR code as hex code base
204 AddType(0xeb00, "42465331-3BA3-10F1-802A-4861696B7521", "Haiku BFS");
205
206 // Manufacturer-specific ESP-like partitions (in order in which they were added)
207 AddType(0xed00, "F4019732-066E-4E12-8273-346C5641494F", "Sony system partition");
208 AddType(0xed01, "BFBFAFE7-A34F-448A-9A5B-6213EB736C22", "Lenovo system partition");
209
210 // EFI system and related partitions
211 AddType(0xef00, "C12A7328-F81F-11D2-BA4B-00A0C93EC93B", "EFI System"); // Parted identifies these as having the "boot flag" set
212 AddType(0xef01, "024DEE41-33E7-11D3-9D69-0008C781F39F", "MBR partition scheme"); // Used to nest MBR in GPT
213 AddType(0xef02, "21686148-6449-6E6F-744E-656564454649", "BIOS boot partition"); // Used by GRUB
214
215 // Ceph type codes; see https://github.com/ceph/ceph/blob/9bcc42a3e6b08521694b5c0228b2c6ed7b3d312e/src/ceph-disk#L76-L81
216 AddType(0xf800, "4FBD7E29-9D25-41B8-AFD0-062C0CEFF05D", "Ceph OSD"); // Ceph Object Storage Daemon
217 AddType(0xf801, "4FBD7E29-9D25-41B8-AFD0-5EC00CEFF05D", "Ceph dm-crypt OSD"); // Ceph Object Storage Daemon (encrypted)
218 AddType(0xf802, "BFBFAFE7-A34F-448A-9A5B-6213EB736C22", "Ceph journal");
219 AddType(0xf803, "45B0969E-9B03-4F30-B4C6-5EC00CEFF106", "Ceph dm-crypt journal");
220 AddType(0xf804, "89C57F98-2FE5-4DC0-89C1-F3AD0CEFF2BE", "Ceph disk in creation");
221 AddType(0xf805, "89C57F98-2FE5-4DC0-89C1-5EC00CEFF2BE", "Ceph dm-crypt disk in creation");
222
223 // VMWare ESX partition types codes
224 AddType(0xfb00, "AA31E02A-400F-11DB-9590-000C2911D1B8", "VMWare VMFS");
225 AddType(0xfb01, "9198EFFC-31C0-11DB-8F78-000C2911D1B8", "VMWare reserved");
226 AddType(0xfc00, "9D275380-40AD-11DB-BF97-000C2911D1B8", "VMWare kcore crash protection");
227
228 // A straggler Linux partition type....
229 AddType(0xfd00, "A19D880F-05FC-4D3B-A006-743F0F84911E", "Linux RAID");
230
231 // Note: DO NOT use the 0xffff code; that's reserved to indicate an
232 // unknown GUID type code.
233 } // PartType::AddAllTypes()
234
235 // Add a single type to the linked list of types. Returns 1 if operation
236 // succeeds, 0 otherwise.
AddType(uint16_t mbrType,const char * guidData,const char * name,int toDisplay)237 int PartType::AddType(uint16_t mbrType, const char * guidData, const char * name,
238 int toDisplay) {
239 AType* tempType;
240 int allOK = 1;
241
242 tempType = new AType;
243 if (tempType != NULL) {
244 tempType->MBRType = mbrType;
245 tempType->GUIDType = guidData;
246 tempType->name = name;
247 tempType->display = toDisplay;
248 tempType->next = NULL;
249 if (allTypes == NULL) { // first entry
250 allTypes = tempType;
251 } else {
252 lastType->next = tempType;
253 } // if/else
254 lastType = tempType;
255 } else {
256 cerr << "Unable to allocate memory in PartType::AddType()! Partition type list will\n";
257 cerr << "be incomplete!\n";
258 allOK = 0;
259 } // if/else
260 return allOK;
261 } // GUID::AddType(const char* variant)
262
263 // Assignment operator by string. If the original string is short,
264 // interpret it as a gdisk hex code; if it's longer, interpret it as
265 // a direct entry of a GUID value. If a short string isn't a hex
266 // number, do nothing.
operator =(const string & orig)267 PartType & PartType::operator=(const string & orig) {
268 uint32_t hexCode;
269
270 if (orig.length() < 32) {
271 if (IsHex(orig)) {
272 sscanf(orig.c_str(), "%x", &hexCode);
273 *this = hexCode;
274 }
275 } else {
276 GUIDData::operator=(orig);
277 } // if/else hexCode or GUID
278 return *this;
279 } // PartType::operator=(const char * orig)
280
281 // Assignment from C-style string; rely on C++ casting....
operator =(const char * orig)282 PartType & PartType::operator=(const char * orig) {
283 return operator=((string) orig);
284 } // PartType::operator=(const char * orig)
285
286 // Assign a GUID based on my custom 2-byte (16-bit) MBR hex ID variant
operator =(uint16_t ID)287 PartType & PartType::operator=(uint16_t ID) {
288 AType* theItem = allTypes;
289 int found = 0;
290
291 // Now search the type list for a match to the ID....
292 while ((theItem != NULL) && (!found)) {
293 if (theItem->MBRType == ID) {
294 GUIDData::operator=(theItem->GUIDType);
295 found = 1;
296 } else {
297 theItem = theItem->next;
298 } // if/else
299 } // while
300 if (!found) {
301 // Assign a default value....
302 operator=(DEFAULT_GPT_TYPE);
303 cout.setf(ios::uppercase);
304 cout.fill('0');
305 cout << "Exact type match not found for type code ";
306 cout.width(4);
307 cout << hex << ID << "; assigning type code for\n'" << TypeName() << "'\n" << dec;
308 cout.fill(' ');
309 } // if (!found)
310 return *this;
311 } // PartType::operator=(uint16_t ID)
312
313 // Return the English description of the partition type (e.g., "Linux filesystem")
TypeName(void) const314 string PartType::TypeName(void) const {
315 AType* theItem = allTypes;
316 int found = 0;
317 string typeName;
318
319 while ((theItem != NULL) && (!found)) {
320 if (theItem->GUIDType == *this) { // found it!
321 typeName = theItem->name;
322 found = 1;
323 } else {
324 theItem = theItem->next;
325 } // if/else
326 } // while
327 if (!found) {
328 typeName = "Unknown";
329 } // if (!found)
330 return typeName;
331 } // PartType::TypeName()
332
333 #ifdef USE_UTF16
334 // Return the Unicode description of the partition type (e.g., "Linux filesystem")
UTypeName(void) const335 UnicodeString PartType::UTypeName(void) const {
336 AType* theItem = allTypes;
337 int found = 0;
338 UnicodeString typeName;
339
340 while ((theItem != NULL) && (!found)) {
341 if (theItem->GUIDType == *this) { // found it!
342 typeName = theItem->name.c_str();
343 found = 1;
344 } else {
345 theItem = theItem->next;
346 } // if/else
347 } // while
348 if (!found) {
349 typeName = "Unknown";
350 } // if (!found)
351 return typeName;
352 } // PartType::TypeName()
353 #endif
354
355 // Return the custom GPT fdisk 2-byte (16-bit) hex code for this GUID partition type
356 // Note that this function ignores entries for which the display variable
357 // is set to 0. This enables control of which values get returned when
358 // there are multiple possibilities, but opens the algorithm up to the
359 // potential for problems should the data in the list be bad.
GetHexType() const360 uint16_t PartType::GetHexType() const {
361 AType* theItem = allTypes;
362 int found = 0;
363 uint16_t theID = 0xFFFF;
364
365 while ((theItem != NULL) && (!found)) {
366 if ((theItem->GUIDType == *this) && (theItem->display == 1)) { // found it!
367 theID = theItem->MBRType;
368 found = 1;
369 } else {
370 theItem = theItem->next;
371 } // if/else
372 } // while
373 if (!found) {
374 theID = 0xFFFF;
375 } // if (!found)
376 return theID;
377 } // PartType::GetHex()
378
379 // Displays the available types and my extended MBR codes for same....
380 // Note: This function assumes an 80-column display. On wider displays,
381 // it stops at under 80 columns; on narrower displays, lines will wrap
382 // in an ugly way. The maxLines value is the maximum number of lines
383 // to display before prompting to continue, or 0 (or a negative value)
384 // for no limit.
ShowAllTypes(int maxLines) const385 void PartType::ShowAllTypes(int maxLines) const {
386 int colCount = 1, lineCount = 1;
387 size_t i;
388 AType* thisType = allTypes;
389 string line;
390
391 cout.unsetf(ios::uppercase);
392 while (thisType != NULL) {
393 if (thisType->display == 1) { // show it
394 cout.fill('0');
395 cout.width(4);
396 cout << hex << thisType->MBRType << " ";
397 cout << thisType->name.substr(0, 20);
398 for (i = 0; i < (20 - (thisType->name.substr(0, 20).length())); i++)
399 cout << " ";
400 if ((colCount % 3) == 0) {
401 if (thisType->next) {
402 cout << "\n";
403 if ((maxLines > 0) && (lineCount++ % maxLines) == 0) {
404 cout << "Press the <Enter> key to see more codes: ";
405 getline(cin, line);
406 } // if reached screen line limit
407 } // if there's another entry following this one
408 } else {
409 cout << " ";
410 }
411 colCount++;
412 } // if
413 thisType = thisType->next;
414 } // while
415 cout.fill(' ');
416 cout << "\n" << dec;
417 } // PartType::ShowAllTypes(int maxLines)
418
419 // Returns 1 if code is a valid extended MBR code, 0 if it's not
Valid(uint16_t code) const420 int PartType::Valid(uint16_t code) const {
421 AType* thisType = allTypes;
422 int found = 0;
423
424 while ((thisType != NULL) && (!found)) {
425 if (thisType->MBRType == code) {
426 found = 1;
427 } // if
428 thisType = thisType->next;
429 } // while
430 return found;
431 } // PartType::Valid()
432