The
bcmp() interface is obsolete. Do not add new code using it. It will soon be purged. Use
memcmp(9) instead. (The
bcmp() function is now a macro for
memcmp(9).)
The
bcmp() function compares byte string
b1 against byte string
b2, returning zero if they are identical, non-zero otherwise. Both strings are assumed to be
len bytes long. Zero-length strings are always identical.
The strings may overlap.