Possible memory corruption in in pj_sockaddr_set_str_addr() with IPv6 address

[pascal.lequeux@xxxxxx (Pascal Lequeux)]

Hi All,

When using pj_sockaddr_set_str_addr() in sock_common.c with an IPv6 
address, the stack seems to be corrupted by pj_memcpy().
The original code (up to pjlib version 2.1) is:
                 pj_memcpy(&addr->ipv6.sin6_addr, 
&ai.ai_addr.ipv6.sin6_addr, sizeof(*pj_sockaddr_in6*));
I would like to suggest to change it to:
                 pj_memcpy(&addr->ipv6.sin6_addr, 
&ai.ai_addr.ipv6.sin6_addr, sizeof(*addr->ipv6.sin6_addr*));
because &addr->ipv6.sin6_addr is a pointer to a *pj_in6_addr *structure.

Any comment is welcome.

Pascal
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