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BUG/MEDIUM: resolvers: fix truncated TLD consecutive to the API fix

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A bug was introduced by commit previous bf9498a31 ("MINOR: resolvers:
fix the resolv_str_to_dn_label() API about trailing zero") as the code
is particularly contrived and hard to test. The output writes the last
char at [i+1] so the trailing zero and return value must be at i+1.

This will have to be backported where the patch above is backported
since it was needed for a fix.
This commit is contained in:
Willy Tarreau 2021-10-15 08:09:25 +02:00
parent cc8fd4c040
commit 7b232f132d
1 changed files with 2 additions and 2 deletions
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4
src/resolvers.c
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@ -1686,8 +1686,8 @@ int resolv_str_to_dn_label(const char *str, int str_len, char *dn, int dn_len)
dn[i+1] = str[i];
}
dn[offset] = i - offset;
dn[i] = '\0';
return i;
dn[i+1] = '\0';
return i+1;
}
/* Validates host name: