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[unix-history] / usr / src / lib / libc / string / strdup.c

/*
 * Copyright (c) 1988 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)strdup.c	5.3 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <sys/types.h>
#include <stddef.h>
#include <string.h>


char *
strdup(str)
	char *str;
{
	int len;
	char *copy, *malloc();

	len = strlen(str) + 1;
	if (!(copy = malloc((u_int)len)))
		return((char *)NULL);
	bcopy(str, copy, len);
	return(copy);
}