diff --git a/code/apps/server/header/blocks.h b/code/apps/server/header/blocks.h
index 1fb83bc..f7500ab 100644
--- a/code/apps/server/header/blocks.h
+++ b/code/apps/server/header/blocks.h
@@ -1,3 +1,14 @@
 #pragma once
 #include "system.h"
 
+#define BLOCKS_ERROR_NONE       +0x0000
+#define BLOCKS_ERROR_OUTOFMEM   -0x0001
+#define BLOCKS_ERROR_NOTFOUND   -0x0002
+#define BLOCKS_ERROR_INVALID    -0x0003
+
+int32_t blocks_init(void);
+int32_t blocks_destroy(void);
+
+// persisting buffer
+char *blocks_get_name(uint32_t id);
+uint32_t blocks_get_flags(uint32_t id);
diff --git a/code/apps/server/source/blocks.c b/code/apps/server/source/blocks.c
index d57a58b..bcc5a65 100644
--- a/code/apps/server/source/blocks.c
+++ b/code/apps/server/source/blocks.c
@@ -1,3 +1,50 @@
 #include "blocks.h"
+#include "zpl.h"
 
 // todo: csv parsing + utils
+
+#define BLOCK_NAMELEN 80
+
+typedef struct {
+    uint32_t id;
+    char name[BLOCK_NAMELEN];
+    uint32_t flags;
+} block;
+
+static block *blocks = NULL;
+static uint32_t blocks_count = 0;
+
+int blocks_comparer(void const *a, void const *b) {
+    block *ba = (block*)a;
+    uint32_t bb = *(uint32_t*)b;
+    return ba->id < bb ? -1 : ba->id > bb;
+}
+
+static block *blocks_find(uint32_t id) {
+    ZPL_ASSERT_NOT_NULL(blocks);
+    int32_t index = zpl_binary_search((void*)blocks, blocks_count, sizeof(block), (void*)&id, blocks_comparer);
+    ZPL_ASSERT_MSG(index != -1, "block could not be found");
+    return &blocks[index];
+}
+
+int32_t blocks_init(void) {
+    // todo read csv by lines, linecount-1 == blocks_count
+    // preallocate and assign values
+    return BLOCKS_ERROR_NONE;
+}
+
+int32_t blocks_destroy(void) {
+    ZPL_ASSERT_NOT_NULL(blocks);
+    zpl_mfree(blocks);
+    return BLOCKS_ERROR_NONE;
+}
+
+char *blocks_get_name(uint32_t id) {
+    ZPL_ASSERT_NOT_NULL(blocks);
+    return blocks_find(id)->name;
+}
+
+uint32_t blocks_get_flags(uint32_t id) {
+    ZPL_ASSERT_NOT_NULL(blocks);
+    return blocks_find(id)->flags;
+}