int getPartitions(int fd, struct partition *partitions)
{
int count;
int jump;
int rc;
int sector;
int start = 446;
int totalcount;
unsigned char buf[SECTOR_SZ];
/* Read sector 0 */
sector = 0;
rc = readSectors ( fd, sector, 1, buf );
if ( rc == -1 )
{
perror ( "Could not read sector" );
exit(-1);
}
/* Read first 4 partitions from sector 0 */
for(count = 0; count < 4; count++)
{
jump = readPartition(1, start + count*16, buf, partitions, count, 0);
}
totalcount = count;
/* Read extended partitions */
while (jump > 0)
{
sector = jump;
rc = readSectors ( fd, sector, 1, buf );
if ( rc == -1 )
{
perror ( "Could not read sector" );
exit(-1);
}
count = 0;
jump = 1;
while (jump == 1)
{
jump = readPartition(0, start + count*16, buf, partitions, totalcount, sector);
if (jump == 1)
{
count = count + 1;
totalcount = totalcount + 1;
}
}
}
return totalcount;
}
static void pslPartition(char *pslFile, char *outDir)
/* split PSL files into non-overlapping sets */
{
struct pslInput *pi = pslInputNew(pslFile);
struct pslParts parts;
struct psl *newPart;
ZeroVar(&parts);
while ((newPart = readPartition(pi)) != NULL)
{
if (gDropContained)
dropContained(&newPart);
pslPartsAdd(&parts, newPart, outDir);
}
if (parts.psls != NULL)
pslPartsWrite(&parts, outDir);
pslInputFree(&pi);
}
/*------------------------------------------------------------------------------
* Name: main
* Action: Print out partition tables.
*-----------------------------------------------------------------------------*/
int main ()
{
int rc; /* Return code */
int fd; /* Device descriptor */
int sector; /* IN: sector to read */
unsigned char buf[SECTOR_SZ]; /* temporary buffer */
struct partition partitions[32];
int count;
int jump;
int start = 446;
int totalcount;
/* Open the device */
fd = open ( "disk", O_RDWR );
if ( fd == -1 )
{
perror ( "Could not open device file" );
exit(-1);
}
/* Read the sector */
sector = atoi( "0" );
rc = readSectors ( fd, sector, 1, buf );
if ( rc == -1 )
{
perror ( "Could not read sector" );
exit(-1);
}
/* Read the first 4 partitions in MBR and print them */
for(count = 0; count < 4; count++)
{
jump = readPartition(1, start + count*16, buf, partitions, count, 0);
printPartition(partitions, count);
}
/* Update total count of entries in array */
totalcount = count;
/* Traverse extended partitions, printing out entries, until we hit an empty entry */
while (jump > 0)
{
/* Read the sector */
sector = jump;
rc = readSectors ( fd, sector, 1, buf );
if ( rc == -1 )
{
perror ( "Could not read sector" );
exit(-1);
}
/* Reset count and jump information */
count = 0;
jump = 1;
/* Traverse sector, printing each entry, until we hit either an empty or extended entry */
while (jump == 1)
{
jump = readPartition(0, start + count*16, buf, partitions, totalcount, sector);
if (jump == 1)
{
printPartition(partitions, totalcount);
count = count + 1;
totalcount = totalcount + 1;
}
}
}
close(fd);
return 0;
}
