Files
bacnet_stack/apps/router/ipmodule.h
T
Kari Argillander a2f1d6959d Make most of functions const correct (#714)
* Make most of the functions const correct

Used clang-tidy and sonarlint to help find places where const could
pretty easily applied. Also lot of hand work.

This commit does not yet touch handlers and typedefs of those.

* Fix Arduino uno handler_who_is() has extra parenthesis

For some reason there is extra parenthesis. Remove it this is more
likely buildable.

* Bugfix/bacapp: Fix uninitilized array_index

We have changed bacapp_snprintf_value() to be const correct. After that
we got

```
/home/runner/work/bacnet-stack/bacnet-stack/src/bacnet/bacapp.c:3183:27: warning: 4th function call argument is an uninitialized value [core.CallAndMessage]
                ret_val = bacapp_snprintf_weeklyschedule(
                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
```

So analyzer could now spot that we do not actually initilize array_index
at all. Fix this by setting array_index to zero. Note that I actually do
not know if zeroing is right thing to do here. I choose zero as if this
has worked before it is most likely that it will work with zero value.

* cmake: Add and ignore Wwrite-strings compiler option

Wwrite-strings helps find places where const correctness is broken.

Example it will warn about these

```C

void func1(char* str);

func("test") /* "test" is const so we should not pass it to func1().

char* func2()
{
  return "test"; /* func2() should return const char*.
}
```

We still need to ignore it as not all are fixed but let's add it already
so we remember that it should be opened at some point.

---------

Co-authored-by: Kari Argillander <kari.argillander@fidelix.com>
2024-08-29 14:08:02 -05:00

62 lines
1.3 KiB
C

/**
* @file
* @author Andriy Sukhynyuk, Vasyl Tkhir, Andriy Ivasiv
* @date 2012
* @brief Datalink IP module
*
* @section LICENSE
*
* SPDX-License-Identifier: MIT
*/
#ifndef UDPMODULE_H
#define UDPMODULE_H
#include <stdint.h>
#include <stdbool.h>
#include "bacport.h"
#include "portthread.h"
#include "bacnet/datalink/bip.h"
#define MAX_BIP_APDU 1476
#define MAX_BIP_PDU (MAX_NPDU + MAX_BIP_APDU)
#define MAX_BIP_MPDU (BIP_HEADER_MAX + MAX_BIP_PDU)
/* Yes, we know this is longer than an Ethernet Frame,
a UDP payload and an IPv6 packet.
Grandfathered in from BACnet Ethernet days,
and we can rely on the lower layers of the
Ethernet stack to fragment/reassemble the BACnet MPDUs */
typedef struct ip_data {
int socket;
uint16_t port;
struct in_addr local_addr;
struct in_addr broadcast_addr;
uint8_t *buff;
uint16_t max_buff;
} IP_DATA;
void *dl_ip_thread(
void *pArgs);
bool dl_ip_init(
ROUTER_PORT * port,
IP_DATA * data);
int dl_ip_send(
IP_DATA * data,
const BACNET_ADDRESS * dest,
const uint8_t * pdu,
unsigned pdu_len);
int dl_ip_recv(
IP_DATA * data,
MSG_DATA ** msg, /* on recieve fill up message */
BACNET_ADDRESS * src,
unsigned timeout);
void dl_ip_cleanup(
IP_DATA * data);
#endif /* end of UDPMODULE_H */