cks to replace the otherwise used internal memory functions. 
<p class="level0">This man page only adds documentation for the callbacks, see the <a Class="emphasis" href="./curl_global_init.html">curl_global_init</a> man page for all the rest. When you use this function, all callback arguments must be set to valid function pointers. 
<p class="level0">The prototypes for the given callbacks should match these: 
<p class="level0"><a name="void"></a><span class="nroffip">void *malloc_callback(size_t size);</sp