tiso9660.h - plan9port - [fork] Plan 9 from user space
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tiso9660.h (2713B)
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1 #define VOLDESC 16 /* sector number */
2
3 /*
4 * L means little-endian, M means big-endian, and LM means little-endian
5 * then again big-endian.
6 */
7 typedef uchar Byte2L[2];
8 typedef uchar Byte2M[2];
9 typedef uchar Byte4LM[4];
10 typedef uchar Byte4L[4];
11 typedef uchar Byte4M[4];
12 typedef uchar Byte8LM[8];
13 typedef union Drec Drec;
14 typedef union Voldesc Voldesc;
15
16 enum
17 {
18 Boot = 0,
19 Primary = 1,
20 Supplementary = 2,
21 Partition = 3,
22 Terminator = 255
23 };
24
25 union Voldesc
26 { /* volume descriptor */
27 uchar byte[Sectorsize];
28 union { /* for CD001, the ECMA standard */
29 struct
30 {
31 uchar type;
32 uchar stdid[5];
33 uchar version;
34 uchar unused;
35 uchar sysid[32];
36 uchar bootid[32];
37 uchar data[1977];
38 } boot;
39 struct
40 {
41 uchar type;
42 uchar stdid[5];
43 uchar version;
44 uchar flags;
45 uchar sysid[32];
46 uchar volid[32];
47 Byte8LM partloc;
48 Byte8LM size;
49 uchar escapes[32];
50 Byte4LM vsetsize;
51 Byte4LM vseqno;
52 Byte4LM blksize;
53 Byte8LM ptabsize;
54 Byte4L lptable;
55 Byte4L optlptable;
56 Byte4M mptable;
57 Byte4M optmptable;
58 uchar rootdir[34];
59 uchar volsetid[128];
60 uchar pubid[128];
61 uchar prepid[128];
62 uchar appid[128];
63 uchar copyright[37];
64 uchar abstract[37];
65 uchar bibliography[37];
66 uchar cdate[17];
67 uchar mdate[17];
68 uchar expdate[17];
69 uchar effdate[17];
70 uchar fsversion;
71 uchar unused3[1];
72 uchar appuse[512];
73 uchar unused4[653];
74 } desc;
75 } z;
76 union
77 { /* for CDROM, the `High Sierra' standard */
78 struct
79 {
80 Byte8LM number;
81 uchar type;
82 uchar stdid[5];
83 uchar version;
84 uchar flags;
85 uchar sysid[32];
86 uchar volid[32];
87 Byte8LM partloc;
88 Byte8LM size;
89 uchar escapes[32];
90 Byte4LM vsetsize;
91 Byte4LM vseqno;
92 Byte4LM blksize;
93 uchar quux[40];
94 uchar rootdir[34];
95 uchar volsetid[128];
96 uchar pubid[128];
97 uchar prepid[128];
98 uchar appid[128];
99 uchar copyright[32];
100 uchar abstract[32];
101 uchar cdate[16];
102 uchar mdate[16];
103 uchar expdate[16];
104 uchar effdate[16];
105 uchar fsversion;
106 } desc;
107 } r;
108 };
109
110 union Drec
111 {
112 struct
113 {
114 uchar reclen;
115 uchar attrlen;
116 Byte8LM addr;
117 Byte8LM size;
118 uchar date[6];
119 uchar tzone; /* flags in high sierra */
120 uchar flags; /* ? in high sierra */
121 uchar unitsize; /* ? in high sierra */
122 uchar gapsize; /* ? in high sierra */
123 Byte4LM vseqno; /* ? in high sierra */
124 uchar namelen;
125 uchar name[1];
126 } z;
127 struct
128 {
129 uchar pad[24];
130 uchar flags;
131 } r;
132 };
133
134 struct Isofile
135 {
136 short fmt; /* 'z' if iso, 'r' if high sierra */
137 short blksize;
138 long offset; /* true offset when reading directory */
139 long odelta; /* true size of directory just read */
140 long doffset; /* plan9 offset when reading directory */
141 Drec d;
142 };