수다닷컴

global.h
..
struct direntry {
chardeName[8]; // filename, blank filled
#define SLOT_EMPTY 0x00// slot has never been used
#define SLOT_E5 0x05// the real value is 0xe5
#define SLOT_DELETED 0xe5// file in this slot deleted
unsigned chardeExtension[3]; // extension, blank filled
unsigned chardeAttributes; // file attributes
#define ATTR_NORMAL 0x00// normal file
#define ATTR_READONLY 0x01// file is readonly
#define ATTR_HIDDEN 0x02// file is hidden
#define ATTR_SYSTEM 0x04// file is a system file
#define ATTR_VOLUME 0x08// entry is a volume label
#define ATTR_LONG_FILENAME0x0f// this is a long filename entry
#define ATTR_DIRECTORY 0x10// entry is a directory name
#define ATTR_ARCHIVE 0x20// file is new or modified
unsigned chardeLowerCase; // NT VFAT lower case flags
#define LCASE_BASE 0x08// filename base in lower case
#define LCASE_EXT 0x10// filename extension in lower case
unsigned chardeCHundredth;// hundredth of seconds in CTime
unsigned chardeCTime[2];// create time
unsigned chardeCDate[2];// create date
unsigned chardeADate[2];// access date
unsigned int deHighClust;// high bytes of cluster number
unsigned chardeMTime[2];// last update time
unsigned chardeMDate[2];// last update date
unsigned int deStartCluster;// starting cluster of file
unsigned longdeFileSize;// size of file in bytes
};
..

main.c
..
..

unsigned char fatGetDirEntry(unsigned long cluster)
{
unsigned char count_file = 0; // 파일의 총 개수
unsigned long offset=0;
struct direntry *de = 0; // avoid compiler warning by initializing
int index;
unsigned int clus_hi, clus_lo;
unsigned long cluster_number;
for (offset=0; ; offset++)
{
de = (struct direntry *) fatDir(cluster, offset);
if (de == NULL)
return count_file;
for (index=0; index16; index++) // 16 direntries
{
if (*de-deName == SLOT_EMPTY) //slot_empty이거는 헥사파일임
return count_file; // there is no more direntries
if((*de-deName != SLOT_DELETED) && (de-deAttributes != ATTR_LONG_FILENAME))
{
clus_hi = de-deHighClust;
clus_lo = de-deStartCluster;
cluster_number = (unsigned long)(clus_hi);
cluster_number = 16;
cluster_number |= (unsigned long)(clus_lo);
fatFileStartClust[count_file++] = cluster_number;
}
de++;
}// end of sector
}// end of cluster
return count_file;
}

여기서 direntry라는 곳에서 *de-deName 라고 해서 == SLOT_EMPTY라고 비교하고 있고 밑에 줄에는 de-deAttributes 해서
같은지 다른지 비교하고 있는데 *de 랑 de 에서 이거 뭐가 다른가요... 구조체에서.... 뭐가 좀 이상하다 싶어 올려봅니다.

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