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We don't need to use a temporary buffer, here.

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MFC after:	1 week
This commit is contained in:
Hajimu UMEMOTO 2015-12-22 12:01:06 +00:00
parent beebd9aac8
commit eedae89765
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=292595
1 changed files with 3 additions and 7 deletions
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10
lib/libc/net/map_v4v6.c
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@ -78,15 +78,11 @@ typedef union {
void
_map_v4v6_address(const char *src, char *dst)
{
char tmp[NS_INADDRSZ];
/* Stash a temporary copy so our caller can update in place. */
memcpy(tmp, src, NS_INADDRSZ);
/* Our caller may update in place. */
memmove(&dst[12], src, NS_INADDRSZ);
/* Mark this ipv6 addr as a mapped ipv4. */
memset(&dst[0], 0, 10);
memset(&dst[10], 0xff, 2);
/* Retrieve the saved copy and we're done. */
memcpy(&dst[12], tmp, NS_INADDRSZ);
memset(&dst[0], 0, 10);
}
void