Different size between pj_sockaddr_in6 and native sockaddr_in6 on 64bit systems, causing failure in using SIP IPv6 UDP transport

[bennylp]

On 64bit Linux:

sizeof(struct sockaddr_in6) is 28 bytes,

sizeof(pj_sockaddr_in6) is 32 bytes.

This is because struct pj_in6_addr is aligned to 8 bytes.

This causes failure in using SIP IPv6 UDP transport, with the following error:

16:43:15.266 pjsua_acc.c Unable to generate suitable Contact header for registration: Unsupported transport (PJSIP_EUNSUPTRANSPORT) [status=171060]

16:43:15.266 pjsua_acc.c Unable to create registration: Unsupported transport (PJSIP_EUNSUPTRANSPORT) [status=171060]

Thanks Simon Perreault for the report.

[bennylp]

Changing the title and description, as this probably is 64bit specific. This system is affected:

$ uname -a
Linux x200s 2.6.31-20-generic #58-Ubuntu SMP Fri Mar 12 04:38:19 UTC 2010 x86_64 GNU/Linux
$ gcc -v
Using built-in specs.
Target: x86_64-linux-gnu
..
gcc version 4.4.1 (Ubuntu 4.4.1-4ubuntu9)

while this system is not:

$ uname -a
nanang-desktop 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009 i686 GNU/Linux
$ gcc -v
gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4)

[bennylp]

Fixed in r3145:

• removed u6_addr64 field from pj_in_addr6