char* fat_fgets(char* buf, int n, FILE_STRUCT* fp)
{
int m;
char *s;
buf[0] = '\0';
if(n <= 1) return buf;
n -= 1;
m = _FAT_read_r(&__REENT, fp->fd, buf, n);
if(0 == m) return NULL;
buf[m] = '\0';
s = strchr((const char*)buf, 0x0A);
if(NULL != s)
{
*(++s)= '\0';
m -= s - buf;
//fix reading pointer
_FAT_seek_r (&__REENT, fp->fd, -m, SEEK_CUR);
}
else if(m == n)
{
if(0x0D == buf[n-1]) //0x0D,0x0A
{
buf[n-1] = '\0';
_FAT_seek_r (&__REENT, fp->fd, -1, SEEK_CUR);
}
}
return buf;
}
int fat_fseek(FILE_STRUCT *fp, long offset, int whence)
{
int flag;
//When success, _FAT_seek_r return file position pointer
flag = _FAT_seek_r (&__REENT, fp->fd, (int)offset, whence);
if(flag > 0) flag = 0;
return flag;
}
int main(void)
{
int fd,n,mounted=0;
int inited=0;
ipcmessage* message;
memset(&my_reent, 0, sizeof(struct _reent));
memset(my_filestr, 0, sizeof(FILE_STRUCT)*5);
memset(file_table, 0, 4*2*5);
memset(&dir_state_internal,0,sizeof(DIR_STATE_STRUCT));
dir_internal.device=0;
dir_internal.dirStruct=&dir_state_internal;
heaphandle = os_heap_create(heapspace, sizeof(heapspace));
void* queuespace = os_heap_alloc(heaphandle, 0x20);
queuehandle = os_message_queue_create(queuespace, 8);
void* timer1_queuespace = os_heap_alloc(heaphandle, 0x40);
timer1_queuehandle = os_message_queue_create(timer1_queuespace, 16);
timer1_id=os_create_timer(1000*1000, 1, timer1_queuehandle, 0x666);
os_stop_timer(timer1_id);
extern DISC_INTERFACE __io_wiisd;
inited=__io_wiisd.startup();
msleep(100);
os_device_register(DEVICE, queuehandle);
while(1)
{
int result = 1;
int ack = 1;
os_message_queue_receive(queuehandle,(void *) &message, 0);
switch( message->command )
{
case IOS_OPEN:
{
result = -6;
//debug_printf("%s try open %sfor fd %d\n",DEVICE,message->open.device,message->open.resultfd);
// Checking device name
if (0 == strcmp(message->open.device, DEVICE))
{
result = message->open.resultfd;
}
else
if (0 == strcmp(message->open.device, DEVICE"/log"))
{
if(inited && !mounted)
mounted=fatMountSimple("sd", &__io_wiisd);
if(mounted)
{
static char log_name[]="sd:/log000.txt";
for(n=0;n<5;n++) if(my_filestr[n].inUse==0) break;
fd=-1;
if(n!=5)
{
my_reent._errno=0;
fd=_FAT_open_r(&my_reent, &my_filestr[n], log_name, O_CREAT | O_TRUNC | O_RDWR, 0);
log_name[9]++;
if(log_name[9]>='9') {log_name[9]='0';log_name[8]++;}
if(log_name[8]>='9') {log_name[8]='0';log_name[7]++;}
if(log_name[7]>='9') {log_name[7]='0';log_name[8]='0';log_name[9]='0';}
}
if(fd<0) result=-1;
else
{
result=file_table[n][0]=message->open.resultfd;
file_table[n][1]= fd;
}
}
}
else if (0 == memcmp(message->open.device, DEVICE"/", sizeof(DEVICE)))
{
if(inited && !mounted)
mounted=fatMountSimple("sd", &__io_wiisd);
if(mounted)
{
for(n=0;n<5;n++) if(my_filestr[n].inUse==0) break;
fd=-1;
if(n!=5)
{
my_reent._errno=0;
fd=_FAT_open_r(&my_reent, &my_filestr[n], message->open.device+sizeof(DEVICE),
message->open.mode, 0);
}
if(fd<0) result=-1;
else
{
result=file_table[n][0]=message->open.resultfd;
file_table[n][1]= fd;
}
}
}
}
break;
case IOS_IOCTLV:
{
result = -1;
ioctlv *vec = message->ioctlv.vector;
int i,in = message->ioctlv.num_in,io= message->ioctlv.num_io;
os_sync_before_read( vec, (in+io)*sizeof(ioctlv));
for(i=0;i<in+io;i++){
os_sync_before_read( vec[i].data, vec[i].len);
}
#if 0
// list the directory content to directory.txt
switch(message->ioctl.command )
{
case 0xcacafea:
if(inited && !mounted)
mounted=fatMountSimple("sd", &__io_wiisd);
if(mounted)
{
my_reent._errno=0;
result=-666;
if(_FAT_diropen_r(&my_reent, &dir_internal, "sd:/"))
{
static char log_name2[]="sd:/directory.txt";
char filename[768];
result = 0;
my_reent._errno=0;
fd=_FAT_open_r(&my_reent, &my_filestr[4], log_name2, O_CREAT | O_TRUNC | O_RDWR, 0);
my_reent._errno=0;
while(!_FAT_dirnext_r (&my_reent, &dir_internal, filename, &filestat))
{
my_reent._errno=0;
if(fd>=0)
{
if(filestat.st_mode & S_IFDIR)_FAT_write_r (&my_reent, fd, "[", 1); // es directorio
_FAT_write_r (&my_reent, fd, filename, strlen(filename));
if(filestat.st_mode & S_IFDIR)_FAT_write_r (&my_reent, fd, "]", 1); // es directorio
_FAT_write_r (&my_reent, fd, "\n", 1);
}
}
my_reent._errno=0;
if(fd>=0) _FAT_close_r (&my_reent, fd);fd=-1;
_FAT_dirclose_r(&my_reent, &dir_internal);
}
}
break;
}
#endif
for(i=in;i<in+io;i++){
os_sync_after_write( vec[i].data, vec[i].len);
}
}
break;
case IOS_CLOSE:
{
result = -1;
if(mounted)
{
my_reent._errno=0;
for(n=0;n<5;n++)
{
if(message->fd==file_table[n][0])
{
fd=file_table[n][1];
file_table[n][0]=file_table[n][1]=0;
_FAT_close_r (&my_reent, fd);
result = 0;
break;
}
}
for(n=0;n<5;n++) if(my_filestr[n].inUse!=0) break;
if(n==5) {fatUnmount ("sd");mounted=0;}
}
else result=-6;
}
break;
case IOS_READ:
{
result=-1;
if(mounted)
{
my_reent._errno=0;
for(n=0;n<5;n++)
{
if(message->fd==file_table[n][0])
{
fd=file_table[n][1];
result=_FAT_read_r (&my_reent, fd, message->write.data, message->write.length);
}
}
}
os_sync_after_write( message->write.data, message->write.length);
}
break;
case IOS_WRITE:
{
os_sync_before_read( message->write.data, message->write.length);
result=-1;
if(mounted)
{
my_reent._errno=0;
for(n=0;n<5;n++)
{
if(message->fd==file_table[n][0])
{
fd=file_table[n][1];
result=_FAT_write_r (&my_reent, fd, message->write.data, message->write.length);
}
}
}
}
break;
case IOS_SEEK:
{
result=-1;
if(mounted)
{
my_reent._errno=0;
for(n=0;n<5;n++)
{
if(message->fd==file_table[n][0])
{
fd=file_table[n][1];
result=_FAT_seek_r (&my_reent, fd, message->seek.offset, message->seek.origin);
}
}
}
}
break;
default:
result=-1;
break;
}
if (ack)
os_message_queue_ack( (void*)message, result );
}
return 0;
}
void fat_rewind(FILE_STRUCT *fp)
{
_FAT_seek_r (&__REENT, fp->fd, 0, SEEK_SET);
}