int getDirSize( const char * path, int includeSubdirs, unsigned int * dirSize )
{
char dirPath[MAX_FILENAME_LENGTH];
unsigned int size = 0;
if( "" == path ){
return false;
}
memset( dirPath,0,MAX_FILENAME_LENGTH );
strcpy( dirPath,path );
if( dirPath[strlen(dirPath)-1] != '/' )
dirPath[strlen(dirPath)] = '/';
if( strlen(dirPath) > MAX_FILENAME_LENGTH )
return false;
DIR_STATE_STRUCT *dir;
dir = fat_opendir((const char*)dirPath);
if (dir == NULL)
return false;
struct stat stat_buf;
DIR_ENTRY *currentEntry;
char* filename;
while(fat_readdir_ex(dir, &stat_buf) != NULL)
{
filename = currentEntry->d_name;
if (strcmp(filename, ".") == 0 || strcmp(filename, "..") == 0)
continue;
if (!(stat_buf.st_mode & S_IFDIR)) {
size += (stat_buf.st_size+511)/512;
_usedSecNums +=(stat_buf.st_size+511)/512;
}
else if (includeSubdirs)
{
// calculate the size recursively
unsigned int subDirSize = 0;
char dirPathBuffer[MAX_FILENAME_LENGTH];
memset( dirPathBuffer,0,MAX_FILENAME_LENGTH );
strcpy( dirPathBuffer,dirPath );
memset( dirPath,0,MAX_FILENAME_LENGTH );
sprintf( dirPath,"%s%s",dirPathBuffer,filename );
int succ = getDirSize( dirPath, includeSubdirs, &subDirSize );
if( succ ) {
size += (subDirSize+511)/512;
_usedSecNums +=(subDirSize+511)/512;
}
memset( dirPath,0,MAX_FILENAME_LENGTH );
strcpy( dirPath,dirPathBuffer );
}
}
fat_closedir(dir);
*dirSize = size;
int upload_file(char *name,char *dest_name)
{
struct dirent de;
int retVal=0;
do {
struct stat st;
if (stat(name,&st)) {
fprintf(stderr,"ERROR: Could not stat file '%s'\n",name);
perror("stat() failed");
}
printf("File '%s' is %ld bytes long.\n",name,(long)st.st_size);
if (!file_system_found) open_file_system();
if (!file_system_found) {
fprintf(stderr,"ERROR: Could not open file system.\n");
retVal=-1;
break;
}
if (fat_opendir("/")) { retVal=-1; break; }
printf("Opened directory, dir_sector=%d (absolute sector = %d)\n",dir_sector,partition_start+dir_sector);
while(!fat_readdir(&de)) {
if (de.d_name[0]) printf("%13s %d\n",de.d_name,(int)de.d_off);
// else dump_bytes(0,"empty dirent",&dir_sector_buffer[dir_sector_offset],32);
if (!strcasecmp(de.d_name,dest_name)) {
// Found file, so will replace it
printf("%s already exists on the file system, beginning at cluster %d\n",name,(int)de.d_ino);
break;
}
}
if (dir_sector==-1) {
// File does not (yet) exist, get ready to create it
printf("%s does not yet exist on the file system -- searching for empty directory slot to create it in.\n",name);
if (fat_opendir("/")) { retVal=-1; break; }
struct dirent de;
while(!fat_readdir(&de)) {
if (!de.d_name[0]) {
printf("Found empty slot at dir_sector=%d, dir_sector_offset=%d\n",
dir_sector,dir_sector_offset);
// Create directory entry, and write sector back to SD card
unsigned char dir[32];
bzero(dir,32);
// Write name
for(int i=0;i<11;i++) dir[i]=0x20;
for(int i=0;i<8;i++)
if (dest_name[i]=='.') {
// Write out extension
for(int j=0;j<3;j++)
if (dest_name[i+1+j]) dir[8+j]=dest_name[i+1+j];
break;
} else if (!dest_name[i]) break;
else dir[i]=dest_name[i];
// Set file attributes (only archive bit)
dir[0xb]=0x20;
// Store create time and date
time_t t=time(0);
struct tm *tm=localtime(&t);
dir[0xe]=(tm->tm_sec>>1)&0x1F; // 2 second resolution
dir[0xe]|=(tm->tm_min&0x7)<<5;
dir[0xf]=(tm->tm_min&0x3)>>3;
dir[0xf]|=(tm->tm_hour)<<2;
dir[0x10]=tm->tm_mday&0x1f;
dir[0x10]|=((tm->tm_mon+1)&0x7)<<5;
dir[0x11]=((tm->tm_mon+1)&0x1)>>3;
dir[0x11]|=(tm->tm_year-80)<<1;
dump_bytes(0,"New directory entry",dir,32);
// (Cluster and size we set after writing to the file)
// Copy back into directory sector, and write it
bcopy(dir,&dir_sector_buffer[dir_sector_offset],32);
if (write_sector(partition_start+dir_sector,dir_sector_buffer)) {
printf("Failed to write updated directory sector.\n");
retVal=-1; break; }
break;
}
}
}
