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fix BACnet/IP on OS to bind broadcast to specific port (#489)

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* Fixes #346 by binding the broadcast socket to the port specific broadcast address rather than INADDR_ANY or INADDR_BROADCAST. Added additional compile and environment options for those who might need them. 

* Changed the define USE_CLASSADDR to BACNET_IP_BROADCAST_USE_CLASSADDR to help manage namespaces.

* Added BACNET_IP_BROADCAST_BIND_ADDR environment variable to override the default broadcast binding address.

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Co-authored-by: Steve Karg <skarg@users.sourceforge.net>
This commit is contained in:
Steve Karg
2023-09-10 10:24:18 -05:00
committed by GitHub
parent 0001f85f29
commit 55b8b3d93c
18 changed files with 231 additions and 58 deletions
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src/bacnet/config.h
-4
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@@ -44,10 +44,6 @@
/* optional configuration for BACnet/IP datalink layer */
#if (defined(BACDL_BIP) || defined(BACDL_ALL))
/* other BIP defines (define as 1 to enable):
USE_INADDR - uses INADDR_BROADCAST for broadcast and binds using INADDR_ANY
USE_CLASSADDR = uses IN_CLASSx_HOST where x=A,B,C or D for broadcast
*/
#if !defined(BBMD_ENABLED)
#define BBMD_ENABLED 1
#endif