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strcpy, strncpy - copy a string
char *strcpy(char *dest, const char *src);
char *strncpy(char *dest, const char *src, size_t n);
The strcpy() function copies the string pointed to be src (including
the terminating `\0' 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 wil 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.
The strcpy() and strncpy() functions return a pointer to the
destination string dest.
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.
SVID 3, POSIX, BSD 4.3, ISO 9899
bcopy(3), memccpy(3), memcpy(3), memmove(3)