strdup - duplicate string

Syntax	#include <string.h> char *strdup(const char *s1);
Description	strdup() returns a pointer to a new string, which is a duplicate of the string pointed to by s1. The space for the new string is allocated using malloc(). The returned pointer can be passed to the free() function. A null pointer is returned if the new string cannot be created.
Return val.	Pointer to the new string
		if successful.
	Null pointer	if an error occurs. errno is set to indicate the error.
Errors	strdup() will fail if:
	ENOMEM	There is not enough memory.
See also	malloc(), free(), string.h.