void prune_tree(struct base_tree_node *n, int fasta_id)
{
if (n->A != NULL)
{
if (n->A->fasta_id < fasta_id)
{
remove_subtree(n->A);
n->A = NULL;
}
else
{
prune_tree(n->A, fasta_id);
}
}
if (n->C != NULL)
{
if (n->C->fasta_id < fasta_id)
{
remove_subtree(n->C);
n->C = NULL;
}
else
{
prune_tree(n->C, fasta_id);
}
}
if (n->G != NULL)
{
if (n->G->fasta_id < fasta_id)
{
remove_subtree(n->G);
n->G = NULL;
}
else
{
prune_tree(n->G, fasta_id);
}
}
if (n->T != NULL)
{
if (n->T->fasta_id < fasta_id)
{
remove_subtree(n->T);
n->T = NULL;
}
else
{
prune_tree(n->T, fasta_id);
}
}
}
bool PulseSink::on_shmdata_disconnect() {
pmanage<MPtr(&PContainer::enable)>(devices_enum_id_);
prune_tree(".shmdata.reader." + shmpath_);
shm_sub_.reset();
On_scope_exit { gst_pipeline_ = std::make_unique<GstPipeliner>(nullptr, nullptr); };
return remake_elements();
}
bool GTKVideo::on_shmdata_disconnect() {
prune_tree(".shmdata.reader." + shmpath_);
shm_sub_.reset();
On_scope_exit{gst_pipeline_ =
std2::make_unique<GstPipeliner>(nullptr,
[this](GstMessage *msg){
return this->bus_sync(msg);
});};
return remake_elements();
}
bool PulseSrc::stop() {
shm_sub_.reset(nullptr);
prune_tree(".shmdata.writer." + shmpath_);
pmanage<MPtr(&PContainer::remove)>(volume_id_);
volume_id_ = 0;
pmanage<MPtr(&PContainer::remove)>(mute_id_);
mute_id_ = 0;
if (!remake_elements()) return false;
volume_id_ = pmanage<MPtr(&PContainer::push)>(
"volume", GPropToProp::to_prop(G_OBJECT(pulsesrc_.get_raw()), "volume"));
mute_id_ = pmanage<MPtr(&PContainer::push)>(
"mute", GPropToProp::to_prop(G_OBJECT(pulsesrc_.get_raw()), "mute"));
gst_pipeline_ = std::make_unique<GstPipeliner>(nullptr, nullptr);
return true;
}
void HTTPSDPDec::uri_to_shmdata() {
destroy_httpsdpdec();
prune_tree(".shmdata.writer");
init_httpsdpdec();
g_object_set_data(
G_OBJECT(sdpdemux_.get_raw()), "on-error-gsource", (gpointer)on_error_.back().get());
g_debug("httpsdpdec: to_shmdata set uri %s", uri_.c_str());
if (!is_dataurisrc_) // for souphttpsrc
g_object_set(G_OBJECT(souphttpsrc_.get_raw()), "location", uri_.c_str(), nullptr);
else // for dataurisrc
g_object_set(G_OBJECT(souphttpsrc_.get_raw()), "uri", uri_.c_str(), nullptr);
gst_bin_add_many(
GST_BIN(gst_pipeline_->get_pipeline()), souphttpsrc_.get_raw(), sdpdemux_.get_raw(), nullptr);
gst_element_link(souphttpsrc_.get_raw(), sdpdemux_.get_raw());
gst_pipeline_->play(true);
}
void go(void) {
prune_tree(rootNode);
// Generate move tree
//printf("[DEBUG] Building move tree\n");
build_move_tree(rootNode, 0, board, isWhitesMove, 0);
// display_move_tree(rootNode, 0);
// Work out optimal moves from move tree
//printf("[DEBUG] Parsing move tree\n");
find_best_move();
//printf("[DEBUG] Displaying best move\n");
uci_bestmove();
// Clean up
// printf("[DEBUG] Cleanup\n");
// prune_tree(rootNode);
}
int main(void)
{
FILE *f = fopen("data", "r");
if (f == NULL)
{
puts("Failed to open data file");
return 1;
}
struct fasta_list fastas;
fastas.head = NULL;
fastas.current_node = NULL;
ssize_t chars_read;
char *current_line = NULL;
size_t current_line_alloc = 0;
while ((chars_read = getline(¤t_line, ¤t_line_alloc, f)) > -1)
{
//printf("READ FROM FILE: %s\n", current_line);
if (*current_line == '>')
{
// fasta name - skip '>' character
char *name = malloc((chars_read-1)*sizeof(char));
if (sscanf(current_line, ">%s\n", name) != 1)
{
puts("Failed to read line name");
return 1;
}
//printf("%s\n", name);
struct fasta_node *fn = new_fasta_node(name);
if (fastas.head == NULL)
{
// first entry
fastas.current_node = fastas.head = fn;
}
else if (fastas.current_node->fasta.dna.len == 0)
{
puts("Found title line but current fasta is empty");
return 1;
}
else
{
//printf("%s: %s", fastas.current_node->fasta.name, fastas.current_node->fasta.dna.data);
fastas.current_node = fastas.current_node->next = fn;
}
}
else
{
//printf("Adding chars to %s: %s", fastas.current_node->fasta.name, current_line);
if (current_line[chars_read] == '\0'
&& current_line[chars_read-1] == '\n')
{
current_line[chars_read-1] = '\0';
}
else
{
puts("Failed end of dna string newline replacement");
return 1;
}
append_chars(&(fastas.current_node->fasta.dna), current_line);
}
}
free(current_line);
fclose(f);
struct base_tree_node *base = new_base_tree_node("", "");
struct fasta_node *fn = fastas.head;
int fasta_id = 0;
while (fn != NULL)
{
//printf("%s\n%s\n", fn->fasta.name, fn->fasta.dna.data);
char *start = fn->fasta.dna.data;
while (*start != '\0')
{
//printf("next substring: %s\n", start);
suffix_tree_add(start, base, fasta_id);
start++;
}
prune_tree(base, fasta_id);
fn = fn->next;
fasta_id++;
}
char *longest = NULL;
int longest_level=-1;
find_longest_substring(base, 0, &longest, &longest_level);
printf("%s\n", longest);
remove_subtree(base);
free_fasta_nodes(&fastas);
}
void apply_scheme(FENC_SCHEME_TYPE scheme, char *public_params, char *data, char *outfile)
{
FENC_ERROR result;
fenc_context context;
fenc_group_params group_params;
fenc_global_params global_params;
fenc_function_input func_input;
fenc_ciphertext ciphertext;
fenc_key master_key;
pairing_t pairing;
FILE *fp;
char *public_params_buf = NULL, *scheme_text = NULL;
char session_key[SESSION_KEY_LEN];
fenc_plaintext rec_session_key;
size_t serialized_len;
clock_t start, stop;
uint32 num_leaves;
fenc_attribute_policy *parsed_policy = NULL;
fenc_attribute_list *parsed_attributes = NULL;
memset(&context, 0, sizeof(fenc_context));
memset(&group_params, 0, sizeof(fenc_group_params));
memset(&global_params, 0, sizeof(fenc_global_params));
memset(&ciphertext, 0, sizeof(fenc_ciphertext));
memset(&master_key, 0, sizeof(fenc_key));
/* Initialize the library. */
result = libfenc_init();
report_error("Initializing library", result);
/* Create a Sahai-Waters context. */
result = libfenc_create_context(&context, scheme);
report_error("Creating context for Waters CP scheme", result);
/* Load group parameters from a file. */
fp = fopen(PARAM, "r");
if (fp != NULL) {
libfenc_load_group_params_from_file(&group_params, fp);
libfenc_get_pbc_pairing(&group_params, pairing);
} else {
perror("Could not open type-d parameters file.\n");
return;
}
fclose(fp);
/* Set up the global parameters. */
result = context.generate_global_params(&global_params, &group_params);
result = libfenc_gen_params(&context, &global_params);
/* Set up the publci parameters */
fp = fopen(public_params, "r");
if(fp != NULL) {
size_t pub_len = read_file(fp, &public_params_buf);
/* base-64 decode */
uint8 *bin_public_buf = NewBase64Decode((const char *) public_params_buf, pub_len, &serialized_len);
/* Import the parameters from binary buffer: */
result = libfenc_import_public_params(&context, bin_public_buf, serialized_len);
report_error("Importing public parameters", result);
free(public_params_buf);
free(bin_public_buf);
}
else {
perror("Could not open public parameters\n");
return;
}
fclose(fp);
if(scheme == FENC_SCHEME_LSW) {
/* convert the list of attributes into a fenc_attribute_list structure */
parsed_attributes = (fenc_attribute_list *) malloc(sizeof(fenc_attribute_list));
fenc_buffer_to_attribute_list(&data, parsed_attributes);
func_input.input_type = FENC_INPUT_ATTRIBUTE_LIST;
func_input.scheme_input = (void *) parsed_attributes;
/* store attribute list for future reference */
char attr_str[SIZE];
memset(attr_str, 0, SIZE);
size_t attr_str_len;
fenc_attribute_list_to_buffer((fenc_attribute_list*)(func_input.scheme_input), (uint8 *)attr_str, SIZE, &attr_str_len);
printf("Attribute list: %s\n", attr_str);
/* test */
num_leaves = 0;
}
else {
//else if(scheme == FENC_SCHEME_WATERSCP) {
/* encrypt under given policy */
// fenc_attribute_policy *parsed_policy = construct_test_policy2();
parsed_policy = (fenc_attribute_policy *) malloc(sizeof(fenc_attribute_policy));
memset(parsed_policy, 0, sizeof(fenc_attribute_policy));
fenc_policy_from_string(parsed_policy, data);
func_input.input_type = FENC_INPUT_NM_ATTRIBUTE_POLICY;
func_input.scheme_input = (void *) parsed_policy;
/* store the policy for future reference */
char policy_str[SIZE];
memset(policy_str, 0, SIZE);
fenc_attribute_policy_to_string(parsed_policy->root, policy_str, SIZE);
printf("POLICY => '%s'\n", policy_str);
}
/* perform encryption */
result = libfenc_kem_encrypt(&context, &func_input, SESSION_KEY_LEN, (uint8 *) session_key, &ciphertext);
printf("Decryption key:\t");
print_buffer_as_hex((uint8 *)session_key, SESSION_KEY_LEN);
/* now perform decryption with session key */
if(scheme == FENC_SCHEME_LSW) {
printf("Successful import => '%d'\n", get_key(kp_abe_priv_keyfile, &context, &master_key));
fenc_key_LSW *key_LSW = (fenc_key_LSW *) master_key.scheme_key;
num_leaves = prune_tree(key_LSW->policy->root, parsed_attributes);
scheme_text = "KP";
}
else if(scheme == FENC_SCHEME_WATERSCP) {
printf("Successful import => '%d'\n", get_key(cp_abe_priv_keyfile, &context, &master_key));
fenc_key_WatersCP *key_WatersCP = (fenc_key_WatersCP *) master_key.scheme_key;
num_leaves = prune_tree(parsed_policy->root, &(key_WatersCP->attribute_list));
scheme_text = "CP";
}
else {
printf("Successful import => '%d'\n", get_key(scp_abe_priv_keyfile, &context, &master_key));
fenc_key_WatersSimpleCP *key_WatersSimpleCP = (fenc_key_WatersSimpleCP *) master_key.scheme_key;
num_leaves = prune_tree(parsed_policy->root, &(key_WatersSimpleCP->attribute_list));
scheme_text = "SCP";
}
printf("Start timer.\n");
/* start timer */
start = clock();
/* Descrypt the resulting ciphertext. */
result = libfenc_decrypt(&context, &ciphertext, &master_key, &rec_session_key);
/* stop timer */
stop = clock();
printf("Stop timer.\n");
double diff = ((double)(stop - start))/CLOCKS_PER_SEC;
printf("Recovered session key:\t");
print_buffer_as_hex(rec_session_key.data, rec_session_key.data_len);
if(memcmp(rec_session_key.data, session_key, rec_session_key.data_len) == 0) {
printf("\nDECRYPTION TIME => %f secs.\n", diff);
printf("NUMBER OF LEAVES => %d\n", num_leaves);
fp = fopen(outfile, "a");
fprintf(fp, "%s:%d:%f\n", scheme_text, num_leaves, diff);
fclose(fp);
}
if(parsed_attributes != NULL)
free(parsed_attributes);
if(parsed_policy != NULL)
free(parsed_policy);
/* Shutdown the library. */
result = libfenc_shutdown();
report_error("Shutting down library", result);
}
