(lldb) p dst
(char *) $6 = 0x00007fffffffe060 "\x90n\U00000006"
(lldb) p src
 --> it showed all unrealircd.conf
(lldb) p n
(unsigned long) $8 = 20668
(lldb) p *mdctx
(EVP_MD_CTX) $10 = {
  reqdigest = NULL
  digest = NULL
  engine = NULL
  flags = 0
  md_data = 0x0000000000000000
  pctx = NULL
  update = 0x0000000000000000
  algctx = 0x0000000000000000
  fetched_digest = NULL
}
(lldb) p *sha256_function
(EVP_MD) $13 = {
  type = 672
  pkey_type = 0
  md_size = 32
  flags = 8
  origin = 0
  init = 0x0000000000000000
  update = 0x0000000000000000
  final = 0x0000000000000000
  copy = 0x0000000000000000
  cleanup = 0x0000000000000000
  block_size = 64
  ctx_size = 0
  md_ctrl = 0x0000000000000000
  name_id = 63
  type_name = 0x000060200000b8d0 "SHA2-256"
  description = 0x0000000000000000
  prov = 0x00006110000007c0
  refcnt = 4
  lock = 0x000060200000b8b0
  newctx = 0x00000008017fe140 (libcrypto.so.30`sha256_newctx at sha2_prov.c:72)
  dinit = 0x00000008017fe280 (libcrypto.so.30`sha256_internal_init at sha2_prov.c:72)
  dupdate = 0x0000000001175d60 (unrealircd`::__interceptor_SHA256_Update(void *, const __sanitizer::u8 *, SIZE_T) at sanitizer_common_interceptors.inc:9207)
  dfinal = 0x00000008017fe170 (libcrypto.so.30`sha256_internal_final at sha2_prov.c:72)
  digest = 0x0000000000000000
  freectx = 0x00000008017fe1d0 (libcrypto.so.30`sha256_freectx at sha2_prov.c:72)
  dupctx = 0x00000008017fe1f0 (libcrypto.so.30`sha256_dupctx at sha2_prov.c:72)
  get_params = 0x00000008017fe260 (libcrypto.so.30`sha256_get_params at sha2_prov.c:72)
  set_ctx_params = 0x0000000000000000
  get_ctx_params = 0x0000000000000000
  gettable_params = 0x00000008017f94c0 (libcrypto.so.30`ossl_digest_default_gettable_params at digestcommon.c:52)
  settable_ctx_params = 0x0000000000000000
  gettable_ctx_params = 0x0000000000000000
}