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• This comparison shows the changes necessary to convert path

  → / @ 386

  → / @ 387

  ↔ Reverse comparison

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Ignore whitespace Rev 386 → Rev 387

/trunk/fat16.c
904,7 → 904,6
return(retvalue);
}
/****************************************************************************************************************************************/
/* Function: u16 DeleteClusterChain(File *file); */
/* */
980,7 → 979,6
/* */
/* Returnvalue: The function returns the appened cluster number or CLUSTER_UNDEFINED of no cluster was appended. */
/****************************************************************************************************************************************/
u16 AppendCluster(File_t *file)
{
u16 last_cluster, new_cluster = CLUSTER_UNDEFINED;
987,13 → 985,25
u32 fat_byte_offset, sector, byte;
Fat16Entry_t * fat;
if((!Partition.IsValid) || (file == NULL)) return(new_cluster);
new_cluster = FindNextFreeCluster(file); // the next free cluster found on the disk.
if(new_cluster != CLUSTER_UNDEFINED)
{ // A free cluster was found and can be added to the end of the file.
fseek_(file, 0, SEEK_END); // jump to the end of the file
last_cluster = SectorToFat16Cluster(file->FirstSectorOfCurrCluster); // determine current file cluster
{ // A free cluster was found and can be added to the end of the file.
// is there at least one cluster appended to the file?
if(file->FirstSectorOfLastCluster == CLUSTER_UNDEFINED)
{
fseek_(file, 0, SEEK_END); // jump to the end of the file
// remember the first sector of the last cluster
file->FirstSectorOfLastCluster = file->FirstSectorOfCurrCluster;
last_cluster = SectorToFat16Cluster(file->FirstSectorOfCurrCluster); // determine current file cluster
}
else
{
last_cluster = SectorToFat16Cluster(file->FirstSectorOfLastCluster); // determine current file cluster
}
if(last_cluster != CLUSTER_UNDEFINED)
{
// update FAT entry of last cluster
1017,6 → 1027,8
Fat16_Deinit();
return(0);
}
// now the new cluster appended to the fat is the last cluster
file->FirstSectorOfLastCluster = Fat16ClusterToSector(new_cluster);
}
else // last cluster of the file is undefined
{ // then the new cluster must be the first one of the file
1045,6 → 1057,7
}
// update file info
file->FirstSectorOfFirstCluster = Fat16ClusterToSector(new_cluster);
file->FirstSectorOfLastCluster = file->FirstSectorOfFirstCluster;
file->Size = 0;
file->Position = 0;
}