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[ipv6] Use given source address only if it is not the unspecified address

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2013-11-08 15:52:07 +00:00
parent 4484edd1c0
commit 95623e353b
2 changed files with 7 additions and 1 deletions
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2
src/net/ipv6.c
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@@ -399,7 +399,7 @@ static int ipv6_tx ( struct io_buffer *iobuf,
rc = -ENETUNREACH;
goto err;
}
if ( sin6_src )
if ( sin6_src && ! IN6_IS_ADDR_UNSPECIFIED ( &sin6_src->sin6_addr ) )
src = &sin6_src->sin6_addr;
memcpy ( &iphdr->src, src, sizeof ( iphdr->src ) );