10 #define CDI_V2 0x80000004
11 #define CDI_V3 0x80000005
13 static char track_start_marker[20] = { 0,0,1,0,0,0,255,255,255,255,
14 0,0,1,0,0,0,255,255,255,255 };
18 uint32_t header_offset;
23 int length; /* bytes */
24 int pregap; /* sectors */
28 struct cdi_track *next;
33 uint16_t num_sessions;
34 struct cdi_track *tracks;
39 struct cdi_track_data {
41 uint32_t pregap_length;
47 uint32_t total_length;
51 } __attribute__((packed));
53 cdi_t cdi_open( char *filename )
55 #define BAIL( x, ... ) { fprintf( stderr, x, __VA_ARGS__ ); if( fd != -1 ) close(fd); return NULL; }
58 int fd = -1, i,j, tmp;
61 struct cdi_trailer trail;
62 struct cdi_handle cdi;
68 fd = open( filename, O_RDONLY );
70 BAIL( "Unable to open file: %s (%s)\n", filename, strerror(errno) );
73 BAIL( "File is too small to be a valid CDI image: %s\n", filename );
74 len = lseek( fd, -8, SEEK_END );
75 read( fd, &trail, sizeof(trail) );
76 if( trail.header_offset > st.st_size ||
77 trail.header_offset == 0 )
78 BAIL( "Not a valid CDI image: %s\n", filename );
80 if( trail.cdi_version == CDI_V2 ) trail.cdi_version = 2;
81 else if( trail.cdi_version == CDI_V3 ) trail.cdi_version = 3;
82 else BAIL( "Unknown CDI version code %08x in %s\n", trail.cdi_version,
85 lseek( fd, trail.header_offset, SEEK_SET );
86 read( fd, &cdi.num_sessions, 2 );
89 printf( "CDI version: %d\n", trail.cdi_version );
90 printf( "Sessions: %d\n\n", cdi.num_sessions );
91 for( i=0; i< cdi.num_sessions; i++ ) {
92 read( fd, &tracks, 2 );
93 printf( "Session %d - %d tracks:\n", i+1, tracks );
94 for( j=0; j<tracks; j++ ) {
95 struct cdi_track_data trk;
97 read( fd, &new_fmt, 4 );
98 if( new_fmt != 0 ) { /* Additional data 3.00.780+ ?? */
99 printf( "Note: CDI image has 3.00.780+ flag set\n" );
100 lseek( fd, 8, SEEK_CUR );
102 read( fd, marker, 20 );
103 if( memcmp( marker, track_start_marker, 20) != 0 )
104 BAIL( "Track start marker not found, error reading cdi\n",NULL );
106 printf( "Unknown 4 bytes: %08x\n", tmp );
107 read( fd, &tmpc, 1 );
108 lseek( fd, (int)tmpc, SEEK_CUR ); /* skip over the filename */
109 read( fd, &trk, sizeof(trk) );
110 switch( trk.sector_size ) {
111 case 0: trk.sector_size = 2048; hdr=0; break;
112 case 1: trk.sector_size = 2336; hdr=8; break;
114 trk.sector_size = 2352;
115 if( trk.mode == 2 ) hdr=24;
118 default: BAIL( "Unknown sector size: %d\n", trk.sector_size );
121 len = trk.length*trk.sector_size;
122 printf( " Track %d\n", j+1 );
123 printf( " Pregap: %08x\n", trk.pregap_length );
124 printf( " Length: %08x\n", trk.length );
125 printf( " Mode: %d\n", trk.mode );
126 printf( " Sector size: %d\n", trk.sector_size );
127 printf( " Start LBA: %08x\n", trk.start_lba );
128 printf( " Total length: %08x\n", trk.total_length );
130 printf( " File position: %08x\n", posn+trk.pregap_length*trk.sector_size );
131 printf( " File length: %d\n", len );
132 posn += trk.total_length*trk.sector_size;
133 lseek( fd, 12, SEEK_CUR );
135 lseek( fd, 78, SEEK_CUR );
136 tmp = lseek( fd, 0, SEEK_CUR );
137 printf( "(Header offset: %x)\n", tmp - trail.header_offset );
145 int main(int argc, char *argv[] )
149 for( i=1; i<argc; i++ ) {
.