/*
* pmemlog_nbyte -- return usable size of a log memory pool
*/
size_t
pmemlog_nbyte(PMEMlogpool *plp)
{
LOG(3, "plp %p", plp);
if ((errno = pthread_rwlock_rdlock(plp->rwlockp))) {
ERR("!pthread_rwlock_rdlock");
return (size_t)-1;
}
size_t size = le64toh(plp->end_offset) - le64toh(plp->start_offset);
LOG(4, "plp %p nbyte %zu", plp, size);
if ((errno = pthread_rwlock_unlock(plp->rwlockp)))
ERR("!pthread_rwlock_unlock");
return size;
}
/* Read a variable length of chars dependant on how big the chunk was */
static inline i64 read_vchars(rzip_control *control, void *ss, int stream, int length)
{
i64 s = 0;
if (unlikely(read_stream(control, ss, stream, (uchar *)&s, length) != length))
fatal_return(("Stream read of %d bytes failed\n", length), -1);
s = le64toh(s);
return s;
}
Rand_event::Rand_event(const char* buf,
const Format_description_event* description_event)
:Binary_log_event(&buf, description_event->binlog_version,
description_event->server_version)
{
//buf is advanced in Binary_log_event constructor to point to
//beginning of post-header
/*
We step to the post-header despite it being empty because it could later be
filled with something and we have to support that case.
The Variable Data part begins immediately.
*/
buf+= description_event->post_header_len[RAND_EVENT - 1];
memcpy(&seed1, buf + RAND_SEED1_OFFSET, 8);
seed1= le64toh(seed1);
memcpy(&seed2, buf + RAND_SEED2_OFFSET, 8);
seed2= le64toh(seed2);
}
static int
udf_read(struct vop_read_args *ap)
{
struct vnode *vp = ap->a_vp;
struct uio *uio = ap->a_uio;
struct udf_node *node = VTON(vp);
struct udf_mnt *udfmp;
struct file_entry *fentry;
struct buf *bp;
uint8_t *data;
daddr_t lbn, rablock;
off_t diff, fsize;
int error = 0;
long size, n, on;
if (uio->uio_resid == 0)
return (0);
if (uio->uio_offset < 0)
return (EINVAL);
if (is_data_in_fentry(node)) {
fentry = node->fentry;
data = &fentry->data[le32toh(fentry->l_ea)];
fsize = le32toh(fentry->l_ad);
n = uio->uio_resid;
diff = fsize - uio->uio_offset;
if (diff <= 0)
return (0);
if (diff < n)
n = diff;
error = uiomove(data + uio->uio_offset, (int)n, uio);
return (error);
}
fsize = le64toh(node->fentry->inf_len);
udfmp = node->udfmp;
do {
lbn = lblkno(udfmp, uio->uio_offset);
on = blkoff(udfmp, uio->uio_offset);
n = min((u_int)(udfmp->bsize - on),
uio->uio_resid);
diff = fsize - uio->uio_offset;
if (diff <= 0)
return (0);
if (diff < n)
n = diff;
size = udfmp->bsize;
rablock = lbn + 1;
if ((vp->v_mount->mnt_flag & MNT_NOCLUSTERR) == 0) {
if (lblktosize(udfmp, rablock) < fsize) {
error = cluster_read(vp, fsize, lbn, size, NOCRED,
uio->uio_resid, (ap->a_ioflag >> 16), &bp);
} else {
error = bread(vp, lbn, size, NOCRED, &bp);
}
} else {
static int
udf_open(struct vop_open_args *ap) {
struct udf_node *np = VTON(ap->a_vp);
off_t fsize;
fsize = le64toh(np->fentry->inf_len);
vnode_create_vobject(ap->a_vp, fsize, ap->a_td);
return 0;
}
/*
* pmemlog_tell -- return current write point in a log memory pool
*/
off_t
pmemlog_tell(PMEMlogpool *plp)
{
LOG(3, "plp %p", plp);
if ((errno = pthread_rwlock_rdlock(plp->rwlockp))) {
ERR("!pthread_rwlock_rdlock");
return (off_t)-1;
}
off_t wp = le64toh(plp->write_offset) - le64toh(plp->start_offset);
LOG(4, "write offset %lld", (long long)wp);
if ((errno = pthread_rwlock_unlock(plp->rwlockp)))
ERR("!pthread_rwlock_unlock");
return wp;
}
static inline uint64_t get_le64(uint8_t **bufferp)
{
uint64_t tmp;
memcpy(&tmp, *bufferp, sizeof (tmp));
*bufferp += sizeof (tmp);
return le64toh(tmp);
}
FCITX_EXPORT_API
size_t
fcitx_utils_read_uint64(FILE *fp, uint64_t *p)
{
uint64_t res = 0;
size_t size;
size = fread(&res, sizeof(uint64_t), 1, fp);
*p = le64toh(res);
return size;
}
int
mb_get_int64le(struct mbdata *mbp, int64_t *x)
{
int64_t v;
int error;
error = mb_get_int64(mbp, &v);
*x = le64toh(v);
return error;
}
static inline bool readUInt64 (FILE * file, kdb_unsigned_long_long_t * valuePtr, Key * errorKey)
{
if (fread (valuePtr, sizeof (kdb_unsigned_long_long_t), 1, file) < 1)
{
ELEKTRA_SET_ERROR (ELEKTRA_ERROR_READ_FAILED, errorKey, "");
return false;
}
*valuePtr = le64toh (*valuePtr);
return true;
}
int
md_get_int64le(struct mdchain *mdp, int64_t *x)
{
int64_t v;
int error;
error = md_get_int64(mdp, &v);
*x = le64toh(v);
return error;
}
void
ble_sm_master_id_parse(void *payload, int len, struct ble_sm_master_id *cmd)
{
uint8_t *u8ptr;
u8ptr = payload;
cmd->ediv = le16toh(u8ptr);
cmd->rand_val = le64toh(u8ptr + 2);
}
static uint64_t journal_file_tag_seqnum(JournalFile *f) {
uint64_t r;
assert(f);
r = le64toh(f->header->n_tags) + 1;
f->header->n_tags = htole64(r);
return r;
}
static void patch_realtime(
const char *dir,
const char *fn,
const struct stat *st,
unsigned long long *realtime) {
usec_t x;
#ifdef HAVE_XATTR
uint64_t crtime;
_cleanup_free_ const char *path = NULL;
#endif
/* The timestamp was determined by the file name, but let's
* see if the file might actually be older than the file name
* suggested... */
assert(dir);
assert(fn);
assert(st);
assert(realtime);
x = timespec_load(&st->st_ctim);
if (x > 0 && x != (usec_t) -1 && x < *realtime)
*realtime = x;
x = timespec_load(&st->st_atim);
if (x > 0 && x != (usec_t) -1 && x < *realtime)
*realtime = x;
x = timespec_load(&st->st_mtim);
if (x > 0 && x != (usec_t) -1 && x < *realtime)
*realtime = x;
#ifdef HAVE_XATTR
/* Let's read the original creation time, if possible. Ideally
* we'd just query the creation time the FS might provide, but
* unfortunately there's currently no sane API to query
* it. Hence let's implement this manually... */
/* Unfortunately there is is not fgetxattrat(), so we need to
* go via path here. :-( */
path = strjoin(dir, "/", fn, NULL);
if (!path)
return;
if (getxattr(path, "user.crtime_usec", &crtime, sizeof(crtime)) == sizeof(crtime)) {
crtime = le64toh(crtime);
if (crtime > 0 && crtime != (uint64_t) -1 && crtime < *realtime)
*realtime = crtime;
}
#endif
}
/*
* pmemlog_walk -- walk through all data in a log memory pool
*
* chunksize of 0 means process_chunk gets called once for all data
* as a single chunk.
*/
void
pmemlog_walk(PMEMlogpool *plp, size_t chunksize,
int (*process_chunk)(const void *buf, size_t len, void *arg), void *arg)
{
LOG(3, "plp %p chunksize %zu", plp, chunksize);
/*
* We are assuming that the walker doesn't change the data it's reading
* in place. We prevent everyone from changing the data behind our back
* until we are done with processing it.
*/
if ((errno = pthread_rwlock_rdlock(plp->rwlockp))) {
ERR("!pthread_rwlock_rdlock");
return;
}
char *data = plp->addr;
uint64_t write_offset = le64toh(plp->write_offset);
uint64_t data_offset = le64toh(plp->start_offset);
size_t len;
if (chunksize == 0) {
/* most common case: process everything at once */
len = write_offset - data_offset;
LOG(3, "length %zu", len);
(*process_chunk)(&data[data_offset], len, arg);
} else {
/*
* Walk through the complete record, chunk by chunk.
* The callback returns 0 to terminate the walk.
*/
while (data_offset < write_offset) {
len = MIN(chunksize, write_offset - data_offset);
if (!(*process_chunk)(&data[data_offset], len, arg))
break;
data_offset += chunksize;
}
}
if ((errno = pthread_rwlock_unlock(plp->rwlockp)))
ERR("!pthread_rwlock_unlock");
}
static int print_iface_handler(struct nl_msg *msg, void *arg)
{
struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
struct nlattr *tb_msg[NL802154_ATTR_MAX + 1];
unsigned int *wpan_phy = arg;
const char *indent = "";
nla_parse(tb_msg, NL802154_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
genlmsg_attrlen(gnlh, 0), NULL);
if (wpan_phy && tb_msg[NL802154_ATTR_WPAN_PHY]) {
unsigned int thiswpan_phy = nla_get_u32(tb_msg[NL802154_ATTR_WPAN_PHY]);
indent = "\t";
if (*wpan_phy != thiswpan_phy)
printf("phy#%d\n", thiswpan_phy);
*wpan_phy = thiswpan_phy;
}
if (tb_msg[NL802154_ATTR_IFNAME])
printf("%sInterface %s\n", indent, nla_get_string(tb_msg[NL802154_ATTR_IFNAME]));
else
printf("%sUnnamed/non-netdev interface\n", indent);
if (tb_msg[NL802154_ATTR_IFINDEX])
printf("%s\tifindex %d\n", indent, nla_get_u32(tb_msg[NL802154_ATTR_IFINDEX]));
if (tb_msg[NL802154_ATTR_WPAN_DEV])
printf("%s\twpan_dev 0x%llx\n", indent,
(unsigned long long)nla_get_u64(tb_msg[NL802154_ATTR_WPAN_DEV]));
if (tb_msg[NL802154_ATTR_EXTENDED_ADDR])
printf("%s\textended_addr 0x%016" PRIx64 "\n", indent,
le64toh(nla_get_u64(tb_msg[NL802154_ATTR_EXTENDED_ADDR])));
if (tb_msg[NL802154_ATTR_SHORT_ADDR])
printf("%s\tshort_addr 0x%04x\n", indent,
le16toh(nla_get_u16(tb_msg[NL802154_ATTR_SHORT_ADDR])));
if (tb_msg[NL802154_ATTR_PAN_ID])
printf("%s\tpan_id 0x%04x\n", indent,
le16toh(nla_get_u16(tb_msg[NL802154_ATTR_PAN_ID])));
if (tb_msg[NL802154_ATTR_IFTYPE])
printf("%s\ttype %s\n", indent, iftype_name(nla_get_u32(tb_msg[NL802154_ATTR_IFTYPE])));
if (tb_msg[NL802154_ATTR_MAX_FRAME_RETRIES])
printf("%s\tmax_frame_retries %d\n", indent, nla_get_s8(tb_msg[NL802154_ATTR_MAX_FRAME_RETRIES]));
if (tb_msg[NL802154_ATTR_MIN_BE])
printf("%s\tmin_be %d\n", indent, nla_get_u8(tb_msg[NL802154_ATTR_MIN_BE]));
if (tb_msg[NL802154_ATTR_MAX_BE])
printf("%s\tmax_be %d\n", indent, nla_get_u8(tb_msg[NL802154_ATTR_MAX_BE]));
if (tb_msg[NL802154_ATTR_MAX_CSMA_BACKOFFS])
printf("%s\tmax_csma_backoffs %d\n", indent, nla_get_u8(tb_msg[NL802154_ATTR_MAX_CSMA_BACKOFFS]));
if (tb_msg[NL802154_ATTR_LBT_MODE])
printf("%s\tlbt %d\n", indent, nla_get_u8(tb_msg[NL802154_ATTR_LBT_MODE]));
if (tb_msg[NL802154_ATTR_ACKREQ_DEFAULT])
printf("%s\tackreq_default %d\n", indent, nla_get_u8(tb_msg[NL802154_ATTR_ACKREQ_DEFAULT]));
return NL_SKIP;
}
/*
* pmemlog_tell -- return current write point in a log memory pool
*/
long long
pmemlog_tell(PMEMlogpool *plp)
{
LOG(3, "plp %p", plp);
if ((errno = pthread_rwlock_rdlock(plp->rwlockp))) {
ERR("!pthread_rwlock_rdlock");
return (off_t)-1;
}
ASSERT(le64toh(plp->write_offset) >= le64toh(plp->start_offset));
long long wp = (long long)(le64toh(plp->write_offset) -
le64toh(plp->start_offset));
LOG(4, "write offset %lld", wp);
util_rwlock_unlock(plp->rwlockp);
return wp;
}
int
md_get_int64le(struct mdchain *mdp, int64_t *x)
{
int64_t v;
int error;
error = md_get_int64(mdp, &v);
if (x != NULL)
*x = le64toh(v);
return (error);
}
static const struct trie_node_f *node_lookup_f(sd_hwdb *hwdb, const struct trie_node_f *node, uint8_t c) {
struct trie_child_entry_f *child;
struct trie_child_entry_f search;
search.c = c;
child = bsearch(&search, trie_node_children(hwdb, node), node->children_count,
le64toh(hwdb->head->child_entry_size), trie_children_cmp_f);
if (child)
return trie_node_from_off(hwdb, child->child_off);
return NULL;
}
/*
* out_get_checksum -- return checksum string with result
*/
const char *
out_get_checksum(void *addr, size_t len, uint64_t *csump)
{
static char str_buff[STR_MAX] = {0, };
int ret = 0;
/*
* The memory range can be mapped with PROT_READ, so allocate a new
* buffer for the checksum and calculate there.
*/
void *buf = Malloc(len);
if (buf == NULL) {
ret = snprintf(str_buff, STR_MAX, "failed");
if (ret < 0 || ret >= STR_MAX)
return "";
return str_buff;
}
memcpy(buf, addr, len);
uint64_t *ncsump = (uint64_t *)
((char *)buf + ((char *)csump - (char *)addr));
uint64_t csum = *csump;
/* validate checksum and get correct one */
int valid = util_validate_checksum(buf, len, ncsump);
if (valid)
ret = snprintf(str_buff, STR_MAX, "0x%" PRIx64" [OK]",
le64toh(csum));
else
ret = snprintf(str_buff, STR_MAX,
"0x%" PRIx64 " [wrong! should be: 0x%" PRIx64 "]",
le64toh(csum), le64toh(*ncsump));
Free(buf);
if (ret < 0 || ret >= STR_MAX)
return "";
return str_buff;
}
int bdgaddif2(char *s, u_int bdg_idx, u_int dst)
{
struct nm_route_ent *ht = rt[bdg_idx].ht;
uint32_t sh = nm_bridge_rthash(s);
uint64_t smac;
smac = le64toh(*(uint64_t *)(s)) & 0xffffffffffff;
ht[sh].mac = (uint64_t) smac;
ht[sh].ports = dst;
pr_warn("src %02x:%02x:%02x:%02x:%02x:%02x -> %d [addr %ld sh %d]\n",
s[0], s[1], s[2], s[3], s[4], s[5], dst, ht[sh].mac, sh);
return 0;
}
/*
* Intercept management frames to collect beacon rssi data
* and to do ibss merges.
*/
void
ath_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
int subtype, int rssi, int nf)
{
struct ieee80211vap *vap = ni->ni_vap;
struct ath_softc *sc = vap->iv_ic->ic_ifp->if_softc;
/*
* Call up first so subsequent work can use information
* potentially stored in the node (e.g. for ibss merge).
*/
ATH_VAP(vap)->av_recv_mgmt(ni, m, subtype, rssi, nf);
switch (subtype) {
case IEEE80211_FC0_SUBTYPE_BEACON:
/* update rssi statistics for use by the hal */
/* XXX unlocked check against vap->iv_bss? */
ATH_RSSI_LPF(sc->sc_halstats.ns_avgbrssi, rssi);
if (sc->sc_syncbeacon &&
ni == vap->iv_bss && vap->iv_state == IEEE80211_S_RUN) {
/*
* Resync beacon timers using the tsf of the beacon
* frame we just received.
*/
ath_beacon_config(sc, vap);
}
/* fall thru... */
case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
if (vap->iv_opmode == IEEE80211_M_IBSS &&
vap->iv_state == IEEE80211_S_RUN) {
uint32_t rstamp = sc->sc_lastrs->rs_tstamp;
uint64_t tsf = ath_extend_tsf(sc, rstamp,
ath_hal_gettsf64(sc->sc_ah));
/*
* Handle ibss merge as needed; check the tsf on the
* frame before attempting the merge. The 802.11 spec
* says the station should change it's bssid to match
* the oldest station with the same ssid, where oldest
* is determined by the tsf. Note that hardware
* reconfiguration happens through callback to
* ath_newstate as the state machine will go from
* RUN -> RUN when this happens.
*/
if (le64toh(ni->ni_tstamp.tsf) >= tsf) {
DPRINTF(sc, ATH_DEBUG_STATE,
"ibss merge, rstamp %u tsf %ju "
"tstamp %ju\n", rstamp, (uintmax_t)tsf,
(uintmax_t)ni->ni_tstamp.tsf);
(void) ieee80211_ibss_merge(ni);
}
}
break;
}
}
/**
Constructor receives a packet from the MySQL master or the binary
log and decodes it to create an Intvar_event.
Written every time a statement uses an AUTO_INCREMENT column or the
LAST_INSERT_ID() function; precedes other events for the statement.
This is written only before a QUERY_EVENT and is not used with row-based
logging. An INTVAR_EVENT is written with a "subtype" in the event data part:
* INSERT_ID_EVENT indicates the value to use for an AUTO_INCREMENT column in
the next statement.
* LAST_INSERT_ID_EVENT indicates the value to use for the LAST_INSERT_ID()
function in the next statement.
*/
Intvar_event::Intvar_event(const char* buf,
const Format_description_event* description_event)
: Binary_log_event(&buf, description_event->binlog_version,
description_event->server_version)
{
//buf is advanced in Binary_log_event constructor to point to
//beginning of post-header
/* The Post-Header is empty. The Varible Data part begins immediately. */
buf+= description_event->post_header_len[INTVAR_EVENT - 1];
type= buf[I_TYPE_OFFSET];
memcpy(&val, buf + I_VAL_OFFSET, 8);
val= le64toh(val);
}
/* Windows Registry HKLM\SYSTEM\MountedDevices uses a blob of data
* to store partitions. This blob is described here:
* http://www.goodells.net/multiboot/partsigs.shtml
* The following function maps this blob to a libguestfs partition
* name, if possible.
*/
static char *
map_registry_disk_blob (guestfs_h *g, const void *blob)
{
CLEANUP_FREE_STRING_LIST char **devices = NULL;
CLEANUP_FREE_PARTITION_LIST struct guestfs_partition_list *partitions = NULL;
size_t i, j, len;
uint64_t part_offset;
/* First 4 bytes are the disk ID. Search all devices to find the
* disk with this disk ID.
*/
devices = guestfs_list_devices (g);
if (devices == NULL)
return NULL;
for (i = 0; devices[i] != NULL; ++i) {
/* Read the disk ID. */
CLEANUP_FREE char *diskid =
guestfs_pread_device (g, devices[i], 4, 0x01b8, &len);
if (diskid == NULL)
continue;
if (len < 4)
continue;
if (memcmp (diskid, blob, 4) == 0) /* found it */
goto found_disk;
}
return NULL;
found_disk:
/* Next 8 bytes are the offset of the partition in bytes(!) given as
* a 64 bit little endian number. Luckily it's easy to get the
* partition byte offset from guestfs_part_list.
*/
memcpy (&part_offset, (char *) blob + 4, sizeof (part_offset));
part_offset = le64toh (part_offset);
partitions = guestfs_part_list (g, devices[i]);
if (partitions == NULL)
return NULL;
for (j = 0; j < partitions->len; ++j) {
if (partitions->val[j].part_start == part_offset) /* found it */
goto found_partition;
}
return NULL;
found_partition:
/* Construct the full device name. */
return safe_asprintf (g, "%s%d", devices[i], partitions->val[j].part_num);
}
uint32_t ProtoDeserializerVisitor::decodeVarInt(istream &in, uint64_t &value) {
value = 0;
uint8_t size = 0;
while (in.good()) {
char c = in.get();
value |= static_cast<unsigned int>( (c & 0x7f) << (0x7 * size++) );
if ( !(c & 0x80) ) break;
}
// Protobuf's VarInt is based on little endian.
value = le64toh(value);
return size;
}
int journal_file_append_first_tag(JournalFile *f) {
int r;
uint64_t p;
if (!f->seal)
return 0;
log_debug("Calculating first tag...");
r = journal_file_hmac_put_header(f);
if (r < 0)
return r;
p = le64toh(f->header->field_hash_table_offset);
if (p < offsetof(Object, hash_table.items))
return -EINVAL;
p -= offsetof(Object, hash_table.items);
r = journal_file_hmac_put_object(f, OBJECT_FIELD_HASH_TABLE, NULL, p);
if (r < 0)
return r;
p = le64toh(f->header->data_hash_table_offset);
if (p < offsetof(Object, hash_table.items))
return -EINVAL;
p -= offsetof(Object, hash_table.items);
r = journal_file_hmac_put_object(f, OBJECT_DATA_HASH_TABLE, NULL, p);
if (r < 0)
return r;
r = journal_file_append_tag(f);
if (r < 0)
return r;
return 0;
}
static uint64_t
isf_read_reg64(struct isf_softc *sc, uint16_t reg)
{
uint64_t val;
uint16_t *val16 = (uint16_t *)&val;
if (isf_debug)
device_printf(sc->isf_dev, "isf_read_reg64(0x%02x)\n", reg);
val16[0] = bus_read_2(sc->isf_res, reg * 2);
val16[1] = bus_read_2(sc->isf_res, (reg+1) * 2);
val16[2] = bus_read_2(sc->isf_res, (reg+2) * 2);
val16[3] = bus_read_2(sc->isf_res, (reg+3) * 2);
return(le64toh(val));
}
/**
* mpr_config_get_volume_wwid - returns wwid given the volume handle
* @sc: per adapter object
* @volume_handle: volume handle
* @wwid: volume wwid
* Context: sleep.
*
* Returns 0 for success, non-zero for failure.
*/
int
mpr_config_get_volume_wwid(struct mpr_softc *sc, u16 volume_handle, u64 *wwid)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2RaidVolPage1_t raid_vol_pg1;
*wwid = 0;
if (!(mpr_config_get_raid_volume_pg1(sc, &mpi_reply, &raid_vol_pg1,
MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, volume_handle))) {
*wwid = le64toh((u64)raid_vol_pg1.WWID.High << 32 |
raid_vol_pg1.WWID.Low);
return 0;
} else
return -1;
}
static int data_object_in_hash_table(JournalFile *f, uint64_t hash, uint64_t p) {
uint64_t n, h, q;
int r;
assert(f);
n = le64toh(f->header->data_hash_table_size) / sizeof(HashItem);
h = hash % n;
q = le64toh(f->data_hash_table[h].head_hash_offset);
while (q != 0) {
Object *o;
if (p == q)
return 1;
r = journal_file_move_to_object(f, OBJECT_DATA, q, &o);
if (r < 0)
return r;
q = le64toh(o->data.next_hash_offset);
}
return 0;
}
//Read len bits and save on datum
int bitio_read(bitio* f, uint64_t* datum, int len) {
int offset, readable, noffset;
uint64_t* pointer;
uint64_t tmp, tmp2;
int res;
//check all the parameters
if((f == NULL) || (len < 1) || (len > sizeof(datum)*8)) {
errno = EINVAL;
fprintf(stderr, "Error1 %i\n", len);
if(f == NULL)
fprintf(stderr, "NULL\n");
return -1;
}
//check if we do the right operation
if(f->writing) {
errno = EINVAL;
fprintf(stderr, "Error2\n");
return -1;
}
readable = (f->end - f->next);
if(readable < 0) { //check if there are bits to read
errno = EINVAL;
fprintf(stderr, "Error4\n");
return -1;
}
if(readable < len) { //Check if refill the structure
res=read(f->fd, f->buf, (MAX_SIZE * 8));
if(res<0) fprintf(stderr, "ERROR\n");
f->next = 0;
f->end = f->size;
readable = MAX_SIZE * 64;
}
pointer = f->buf + (f->next / 64);
offset = f->next % 64;
noffset = 64 - offset;
if(len <= noffset) { //Reading on only one element of buf
tmp = le64toh(*pointer);
tmp >>= offset;
tmp &= (((uint64_t)1 << (len)) - 1);
f->next += len;
}else { //Reading ALSO on the next element of buf