memmem
if (memmem(m, sz, s, strlen(s)) == NULL) {
DEF_WEAK(memmem);
void *memmem(const void *, size_t, const void *, size_t);
if ((p = memmem(sshbuf_ptr(b) + start_offset,
void *memmem(const void *, size_t, const void *, size_t) __pure;
keypos = memmem(packed, size, key1, keylen);
void *memmem(const void *big, size_t big_len, const void *little,
if ((guest_interp = memmem(buf, rdsize, INTERP_MARKER,
*found = memmem(addr, size, pat, patlen);
void *memmem(const void *l, size_t l_len, const void *s, size_t s_len);