lsocket.[ch]: refactored writeInt && readInt

- switched to laikaS_readu* && laikaS_writeu*
- this gets rid of the ugly malloc() for platforms that don't support VLAs

lib/include/core/lmem.h

@@ -58,4 +58,28 @@
 
 void *laikaM_realloc(void *buf, size_t sz);
 
+inline bool laikaM_isBigEndian(void)
+{
+    union
+    {
+        uint32_t i;
+        uint8_t c[4];
+    } _indxint = {0xDEADB33F};
+
+    return _indxint.c[0] == 0xDE;
+}
+
+inline void laikaM_reverse(uint8_t *buf, size_t sz)
+{
+    int k;
+
+    /* swap bytes, reversing the buffer */
+    for (k = 0; k < (sz / 2); k++) {
+        uint8_t tmp = buf[k];
+        buf[k] = buf[sz - k - 1];
+        buf[sz - k - 1] = tmp;
+    }
+}
+
+
 #endif