compare the null-terminated strings
.Fa s1
and
.Fa s2
.Fa s2 .
and return an integer greater than, equal to, or less than 0,
.Pp
The
.Fn strncasecmp
compares at most
.Fa len
characters.
.Sh RETURN VALUES
.Fn strcasecmp
return an integer greater than, equal to, or less than 0,
according as
is lexicographically greater than, equal to, or less than
.Sq Li \e200
is greater than
.Ql \e0 .
.Sh SEE ALSO
.Xr bcmp 3 ,
.Xr memcmp 3 ,