iso9660.h (2713B)
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 };