+ return list;
+}
+
+ssize_t GET_generate_list(void *cls, uint64_t pos, char *buf, size_t max) {
+ struct get_state *gs = cls;
+ const unsigned char *ybuf;
+ char *data;
+ char number[21];
+ unsigned int len;
+
+ if (gs->yoff > 0) {
+ yajl_gen_get_buf(gs->g, &ybuf, &len);
+ size_t bytes_remaining = len - gs->yoff;
+ if (bytes_remaining > max) {
+ memcpy(buf, ybuf + gs->yoff, max);
+ gs->yoff += max;
+ return max;
+ } else {
+ memcpy(buf, ybuf + gs->yoff, bytes_remaining);
+ gs->yoff = 0;
+ yajl_gen_clear(gs->g);
+ return bytes_remaining;
+ }
+ }
+
+ if (gs->done)
+ return -1;
+
+ if (pos == 0) { /* Start iterating */
+ yajl_gen_array_open(gs->g);
+ }
+
+ /* Snarf one record */
+ blerg_fetch(gs->b, gs->entries[gs->i], &data, &len);
+
+ yajl_gen_map_open(gs->g);
+ yajl_gen_string(gs->g, "record", 6);
+ snprintf(number, 21, "%llu", gs->entries[gs->i]);
+ yajl_gen_string(gs->g, number, strlen(number));
+ yajl_gen_string(gs->g, "data", 4);
+ yajl_gen_string(gs->g, data, len);
+ yajl_gen_map_close(gs->g);
+
+ free(data);
+ if (gs->i == 0) {
+ yajl_gen_array_close(gs->g);
+ gs->done = 1;
+ }
+ gs->i--;
+
+
+ yajl_gen_get_buf(gs->g, &ybuf, &len);
+ if (len > max) {
+ memcpy(buf, ybuf, max);
+ gs->yoff = max;
+ return max;
+ } else {
+ memcpy(buf, ybuf, len);
+ yajl_gen_clear(gs->g);
+ return len;
+ }
+}
+
+void GET_generate_list_free(void *cls) {
+ struct get_state *gs = cls;
+
+ blerg_close(gs->b);
+ yajl_gen_free(gs->g);
+ free(gs->entries);
+ free(gs);
+}
+
+int POST_create_iterator(void *cls, enum MHD_ValueKind kind, const char *key, const char *filename, const char *content_type, const char *transfer_encoding, const char *data, uint64_t off, size_t size) {
+ struct create_state *cs = cls;
+
+ if (strncmp(key, "username", 9) == 0) {
+ if (size > 32) size = 32;
+ memcpy(cs->username, data, size);
+ cs->username[size] = 0;
+ } else if (strncmp(key, "password", 9) == 0) {
+ if (size > 32) size = 32;
+ memcpy(cs->password, data, size);
+ cs->password[size] = 0;
+ }
+
+ return MHD_YES;
+}
+
+int POST_put_iterator(void *cls, enum MHD_ValueKind kind, const char *key, const char *filename, const char *content_type, const char *transfer_encoding, const char *data, uint64_t off, size_t size) {
+ struct put_state *ps = cls;
+
+ if (strncmp(key, "data", 5) == 0) {
+ if (ps->data == NULL) {
+ ps->data_size = size;
+ ps->data = malloc(size);
+ } else {
+ if (ps->data_size + size > MAX_RECORD_SIZE) {
+ size = MAX_RECORD_SIZE - ps->data_size;
+ }
+ ps->data_size += size;
+ ps->data = realloc(ps->data, ps->data_size);
+ }
+ memcpy(ps->data + off, data, size);
+ if (ps->data_size == MAX_RECORD_SIZE)
+ return MHD_NO;
+ }
+
+ return MHD_YES;
+}
+
+struct MHD_Response *create_response_for_range(struct blerg *b, uint64_t from, uint64_t to) {
+ struct MHD_Response *response;
+ struct get_state *gs = malloc(sizeof(struct get_state));
+ gs->b = b;
+
+ uint64_t record_count = blerg_get_record_count(b);
+
+ if (from > to || from >= record_count || to >= record_count || to - from > 99) {
+ blerg_close(b);
+ free(gs);
+ return NULL;
+ }
+
+ gs->entries = make_sequential_list(from, to);
+ gs->i = to - from;
+
+ gs->g = yajl_gen_alloc(&yajl_c, NULL);
+ gs->yoff = gs->done = 0;
+
+ response = MHD_create_response_from_callback(-1, 262144, &GET_generate_list, gs, &GET_generate_list_free);
+
+ return response;