Function parse_hook_list

plugins/tcpinfo/tcpinfo.cc:274–313

Parse a comma-separated list of hook names into a hook bitmask.

// Parse a comma-separated list of hook names into a hook bitmask.
static unsigned
parse_hook_list(const char *hook_list)
{
  unsigned mask = 0;
  char    *tok;
  char    *str;
  char    *last;

  const struct hookmask {
    const char *name;
    unsigned    mask;
  } hooks[] = {
    {"ssn_start",     TCPI_HOOK_SSN_START    },
    {"txn_start",     TCPI_HOOK_TXN_START    },
    {"send_resp_hdr", TCPI_HOOK_SEND_RESPONSE},
    {"txn_close",     TCPI_HOOK_TXN_CLOSE    },
    {nullptr,         0u                     }
  };

  str = TSstrdup(hook_list);

  for (tok = strtok_r(str, ",", &last); tok; tok = strtok_r(nullptr, ",", &last)) {
    bool match = false;

    for (const struct hookmask *m = hooks; m->name != nullptr; ++m) {
      if (strcmp(m->name, tok) == 0) {
        mask  |= m->mask;
        match  = true;
        break;
      }
    }

    if (!match) {
      TSError("[tcpinfo] invalid hook name '%s'", tok);
    }
  }

  TSfree(str);
  return mask;
}

void
TSPluginInit(int argc, const char *argv[])