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#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <errno.h>
#include "config.h"
int read_failure(FILE *fd) {
fprintf(stderr, "Could not read from file: errno: %u ", errno);
if( feof(fd) ) fprintf(stderr, "EOF");
fprintf(stderr, "\n");
return 1;
}
int mem_failure() {
fprintf(stderr, "Could not (re)allocate memory\n");
return 1;
}
int main(int argc, char *argv[]) {
FILE *fd;
uint32_t artist_start, album_start, song_start, file_start;
uint32_t artist_count, album_count, song_count, file_count;
uint32_t artist_len, album_array_count;
uint32_t album_len, song_array_count;
uint32_t song_len, genre_len;
uint32_t file_len;
#define header_start 0
#define header_len 68
uint32_t i, j;
char *ct1 = NULL, *ct2 = NULL; // char temp 1 and 2
uint32_t it = 0; // integer temp
// input validation
if( argc != 2 ) {
fprintf(stderr, "usage: parser dbfile\n");
return 1;
}
// open file
fd = fopen(argv[1], "r");
if( fd == NULL ) {
fprintf(stderr, "Could not open file \"%s\"\n", argv[1]);
return 1;
}
// read the header
ct1 = realloc(ct1, 4); if( ct1 == NULL ) return mem_failure();
if( fread(ct1, 4, 1, fd) != 1 ) return read_failure(fd);
if( ct1[0] != 'R' || ct1[1] != 'D' || ct1[2] != 'B' ) {
printf("No header found\n");
return 1;
}
if( ct1[3] != 0x03 ) {
printf("Not version 3\n");
return 1;
}
if( fread(&artist_start, 4, 1, fd) != 1 ) return read_failure(fd); artist_start = BE32(artist_start);
if( fread(&album_start, 4, 1, fd) != 1 ) return read_failure(fd); album_start = BE32(album_start);
if( fread(&song_start, 4, 1, fd) != 1 ) return read_failure(fd); song_start = BE32(song_start);
if( fread(&file_start, 4, 1, fd) != 1 ) return read_failure(fd); file_start = BE32(file_start);
if( fread(&artist_count, 4, 1, fd) != 1 ) return read_failure(fd); artist_count = BE32(artist_count);
if( fread(&album_count, 4, 1, fd) != 1 ) return read_failure(fd); album_count = BE32(album_count);
if( fread(&song_count, 4, 1, fd) != 1 ) return read_failure(fd); song_count = BE32(song_count);
if( fread(&file_count, 4, 1, fd) != 1 ) return read_failure(fd); file_count = BE32(file_count);
if( fread(&artist_len, 4, 1, fd) != 1 ) return read_failure(fd); artist_len = BE32(artist_len);
if( fread(&album_len, 4, 1, fd) != 1 ) return read_failure(fd); album_len = BE32(album_len);
if( fread(&song_len, 4, 1, fd) != 1 ) return read_failure(fd); song_len = BE32(song_len);
if( fread(&genre_len, 4, 1, fd) != 1 ) return read_failure(fd); genre_len = BE32(genre_len);
if( fread(&file_len, 4, 1, fd) != 1 ) return read_failure(fd); file_len = BE32(file_len);
if( fread(&song_array_count, 4, 1, fd) != 1 ) return read_failure(fd); song_array_count = BE32(song_array_count);
if( fread(&album_array_count, 4, 1, fd) != 1 ) return read_failure(fd); album_array_count = BE32(album_array_count);
if( fread(ct1, 4, 1, fd) != 1 ) return read_failure(fd);
// print header info
printf("HEADER");
printf("\n Artist start: 0x%08x = %u", artist_start, artist_start);
if( artist_start != header_start + header_len )
printf(" should be 0x%08x = %u", header_start + header_len, header_start + header_len);
printf("\n Album start: 0x%08x = %u", album_start, album_start);
if( album_start != artist_start + artist_count*(artist_len + 4*album_array_count) )
printf(" should be 0x%08x = %u", artist_start + artist_count*(artist_len + 4*album_array_count),
artist_start + artist_count*(artist_len + 4*album_array_count));
printf("\n Song start: 0x%08x = %u", song_start, song_start);
if( song_start != album_start + album_count*(album_len + 4 + 4*song_array_count) )
printf(" should be 0x%08x = %u", album_start + album_count*(album_len + 4 + 4*song_array_count),
album_start + album_count*(album_len + 4 + 4*song_array_count));
printf("\n File start: 0x%08x = %u", file_start, file_start);
if( file_start != song_start + song_count*(song_len + genre_len + 24) )
printf(" should be 0x%08x = %u", song_start + song_count*(song_len + genre_len + 24),
song_start + song_count*(song_len + genre_len + 24));
printf("\n Artist count: 0x%08x = %u\n", artist_count, artist_count);
printf(" Album count: 0x%08x = %u\n", album_count, album_count);
printf(" Song count: 0x%08x = %u\n", song_count, song_count);
printf(" File count: 0x%08x = %u\n", file_count, file_count);
printf(" Artist len: 0x%08x = %u\n", artist_len, artist_len);
printf(" Album len: 0x%08x = %u\n", album_len, album_len);
printf(" Song len: 0x%08x = %u\n", song_len, song_len);
printf(" Genre len: 0x%08x = %u\n", genre_len, genre_len);
printf(" File len: 0x%08x = %u\n", file_len, file_len);
printf(" Song[] count: 0x%08x = %u\n", song_array_count, song_array_count);
printf(" Album[] count: 0x%08x = %u\n", album_array_count, album_array_count);
printf(" Reserved: 0x%08x\n", ct1[0] & 0xFFFFFFFE);
printf(" Rundb dirty: 0x%01x\n", ct1[3] & 0x01);
// iterate over artists:
ct1 = realloc(ct1, artist_len); if( ct1 == NULL && artist_count!=0 ) return mem_failure();
for(i=0; i < artist_count; i++) {
printf("ARTIST %u/%u (offset 0x%08lx)\n", i, artist_count, (unsigned long)ftell(fd));
if( fread(ct1, artist_len, 1, fd) != 1 ) return read_failure(fd);
printf(" Name: \"%s\"\n", ct1);
printf(" Albums:\n");
for(j=0; j < album_array_count; j++) {
if( fread(&it, 4, 1, fd) != 1 ) return read_failure(fd); it = BE32(it);
printf(" Offset 0x%08x = ", it);
if(it != 0) {
printf("item %u\n", (it - album_start) / (album_len + 4 + 4*song_array_count));
} else {
printf("padding\n");
}
}
}
// iterate over albums:
ct1 = realloc(ct1, album_len); if( ct1 == NULL && album_count!=0) return mem_failure();
for(i=0; i < album_count; i++) {
printf("ALBUM %u/%u (offset 0x%08lx)\n", i, album_count, (unsigned long)ftell(fd));
if( fread(ct1, album_len, 1, fd) != 1 ) return read_failure(fd);
printf(" Name: \"%s\"\n", ct1);
if( fread(&it, 4, 1, fd) != 1 ) return read_failure(fd); it = BE32(it);
printf(" Artist offset: 0x%08x = item %u\n", it, (it - artist_start) / (artist_len + 4*album_array_count));
printf(" Songs:\n");
for(j=0; j < song_array_count; j++) {
if( fread(&it, 4, 1, fd) != 1 ) return read_failure(fd); it = BE32(it);
printf(" Offset 0x%08x = ", it);
if(it != 0) {
printf("item %u\n", (it - song_start) / (song_len + genre_len + 24));
} else {
printf("padding\n");
}
}
}
// iterate over songs:
ct1 = realloc(ct1, song_len); if( ct1 == NULL && song_count!=0) return mem_failure();
ct2 = realloc(ct2, genre_len); if( ct2 == NULL && song_count!=0) return mem_failure();
for(i=0; i < song_count; i++) {
printf("SONG %u/%u (offset 0x%08lx)\n", i, song_count, (unsigned long)ftell(fd));
if( fread(ct1, song_len, 1, fd) != 1 ) return read_failure(fd);
printf(" Name: \"%s\"\n", ct1);
if( fread(&it, 4, 1, fd) != 1 ) return read_failure(fd); it = BE32(it);
printf(" Artist offset: 0x%08x = item %u\n", it, (it - artist_start) / (artist_len + 4*album_array_count));
if( fread(&it, 4, 1, fd) != 1 ) return read_failure(fd); it = BE32(it);
printf(" Album offset: 0x%08x = item %u\n", it, (it - album_start) / (album_len + 4 + 4*song_array_count));
if( fread(&it, 4, 1, fd) != 1 ) return read_failure(fd); it = BE32(it);
printf(" File offset: 0x%08x = item %u\n", it, (it - file_start) / (file_len + 12));
if( fread(ct2, genre_len, 1, fd) != 1 ) return read_failure(fd);
printf(" Genre: \"%s\"\n", ct2);
if( fread(&it, 4, 1, fd) != 1 ) return read_failure(fd); it = BE32(it);
printf(" Bitrate: 0x%04x = %u\n", (it & 0xFFFF0000) >> 16, (it & 0xFFFF0000) >> 16);
printf(" Year: 0x%04x = %u\n", it & 0x0000FFFF, it & 0x0000FFFF);
if( fread(&it, 4, 1, fd) != 1 ) return read_failure(fd); it = BE32(it);
printf(" Playtime: 0x%08x = %u\n", it, it);
if( fread(&it, 4, 1, fd) != 1 ) return read_failure(fd); it = BE32(it);
printf(" Track: 0x%04x = %u\n", (it & 0xFFFF0000) >> 16, (it & 0xFFFF0000) >> 16);
printf(" Samplerate: 0x%04x = %u\n", it & 0x0000FFFF, it & 0x0000FFFF);
}
// iterate over file:
ct1 = realloc(ct1, file_len); if( ct1 == NULL && file_count!=0) return mem_failure();
for(i=0; i < file_count; i++) {
printf("FILE %u/%u (offset 0x%08lx)\n", i, file_count, (unsigned long)ftell(fd));
if( fread(ct1, file_len, 1, fd) != 1 ) return read_failure(fd);
printf(" Name: \"%s\"\n", ct1);
if( fread(&it, 4, 1, fd) != 1 ) return read_failure(fd); it = BE32(it);
printf(" Hash: 0x%08x = %u\n", it, it);
if( fread(&it, 4, 1, fd) != 1 ) return read_failure(fd); it = BE32(it);
printf(" Song offset: 0x%08x = item %u\n", it, (it - song_start) / (song_len + genre_len + 24));
if( fread(&it, 4, 1, fd) != 1 ) return read_failure(fd); it = BE32(it);
printf(" Rundb offset: 0x%08x = %u\n", it, it);
}
// close the file
if( fclose(fd) != 0 ) {
fprintf(stderr, "Could not close file\n");
return 1;
}
return 0;
}
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