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inet_pton: simplify IPv4 walkback loop

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Signed-off-by: Janos Follath <janos.follath@arm.com>
This commit is contained in:
Janos Follath
2026-01-21 17:29:07 +00:00
parent 57f189887b
commit 50376926a7
1 changed files with 6 additions and 7 deletions
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13
library/x509_crt.c
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@@ -2729,16 +2729,15 @@ static int x509_inet_pton_ipv6(const char *src, void *dst)
break;
}
/* Walk back to prior ':', then parse as IPv4-mapped */
int steps = 4;
/* Walk back to prior ':', then parse as IPv4-mapped.
* At this point nonzero_groups == 6 or zero_group_start >= 0. Either way we have a
* ':' before the current position and still inside the buffer. Thus it is safe to
* search back for that ':' without any further checks.
*/
do {
p--;
steps--;
} while (*p != ':' && steps > 0);
} while (*p != ':');
if (*p != ':') {
break;
}
p++;
nonzero_groups--;
if (x509_inet_pton_ipv4((const char *) p,