bcopy(3) [redhat man page]

BCOPY(3)						     LINUX Programmer's Manual							  BCOPY(3)

NAME

       bcopy - copy byte strings

SYNOPSIS

       #include <string.h>

       void bcopy(const void *src, void *dest, size_t n);

DESCRIPTION

       The bcopy() function copies the first n bytes of the source string src to the destination string dest.  If n is zero, no bytes are copied.

RETURN VALUE

       The bcopy() function returns no value.

CONFORMING TO

       4.3BSD.	This function is deprecated -- use memcpy in new programs.

SEE ALSO

       memccpy(3), memcpy(3), memmove(3), strcpy(3), strncpy(3)

GNU
								    1993-04-09								  BCOPY(3)

STRCPY(3)						     Linux Programmer's Manual							 STRCPY(3)

NAME

       strcpy, strncpy - copy a string

SYNOPSIS

       #include <string.h>

       char *strcpy(char *dest, const char *src);

       char *strncpy(char *dest, const char *src, size_t n);

DESCRIPTION

       The  strcpy() function copies the string pointed to by src (including the terminating `' character) to the array pointed to by dest.  The
       strings may not overlap, and the destination string dest must be large enough to receive the copy.

       The strncpy() function is similar, except that not more than n bytes of src are copied. Thus, if there is no null byte among  the  first  n
       bytes of src, the result will not be null-terminated.

       In the case where the length of src is less than that of n, the remainder of dest will be padded with nulls.

RETURN VALUE

       The strcpy() and strncpy() functions return a pointer to the destination string dest.

BUGS

       If  the	destination  string  of  a  strcpy() is not large enough (that is, if the programmer was stupid/lazy, and failed to check the size
       before copying) then anything might happen.  Overflowing fixed length strings is a favourite cracker technique.

CONFORMING TO

       SVID 3, POSIX, BSD 4.3, ISO 9899

SEE ALSO

       bcopy(3), memccpy(3), memcpy(3), memmove(3)

GNU
								    1993-04-11								 STRCPY(3)