memndup

C

Public Domain

Allocates a copy of an arbitrary byte sequence

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C copy duplicate malloc pointer 
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#include <stdlib.h>
#include <string.h>

/* ``memndup(p, len)'' returns a pointer to a dynamically allocated
 * copy of the `len' bytes at `p' (or NULL on error). */

void* memndup(void* p, size_t len) {
 void* q = malloc(len);
 if (q == NULL) return NULL;
 memcpy(q, p, len);
 return q;
}