Date: Sun, 15 Nov 2020 12:51:17 -0700 From: Scott Long <scottl@samsco.org> To: Kyle Evans <kevans@FreeBSD.org> Cc: Guy Yur <guyyur@gmail.com>, freebsd-current <freebsd-current@freebsd.org>, kaktus@freebsd.org Subject: Re: pkg.c revision 367687 breaks pkg Message-ID: <BEE5E27B-0964-4267-849C-F1C4B5252DAB@samsco.org> In-Reply-To: <CACNAnaEGMBze8-XD61KB0ckH0__YJYPAEpQML3B0BesCeRUxFQ@mail.gmail.com> References: <A3B7709B-8C16-48E0-9A6C-E45D206F6DE6@gmail.com> <EC6FF21B-109A-45EE-97F2-A04B1F195DFA@samsco.org> <4e5fe0a6-7325-d413-f68f-2c0ebaa34763@gmail.com> <CACNAnaEGMBze8-XD61KB0ckH0__YJYPAEpQML3B0BesCeRUxFQ@mail.gmail.com>
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> On Nov 15, 2020, at 12:41 PM, Kyle Evans <kevans@FreeBSD.org> wrote:
>
> On Sun, Nov 15, 2020 at 1:33 PM Guy Yur <guyyur@gmail.com> wrote:
>>
>> On 15/11/20 8:55 pm, Scott Long wrote:
>>> This is fixed in revision 367701
>>>
>>> Scott
>>
>> Hi,
>>
>> I am on revision 367710 (newer) and have the same problem.
>> sysctlbyname() returns an empty string and length of 1.
>> sysctl() with name converted to mib works fine.
>>
>> ssize_t tmplen;
>> char path[1000] = { 0 };
>>
>> tmplen = getlocalbase(path, sizeof(path));
>> printf("%s : %zd\n", path, tmplen);
>>
>> tmplen = sizeof(path);
>> if (sysctlbyname("user.localbase", path, (size_t *)&tmplen, NULL, 0) == 0)
>> printf("%s : %zd\n", path, tmplen);
>>
>> int mib[100] = { 0 };
>> size_t miblen;
>> if (sysctlnametomib("user.localbase", mib, &miblen) == 0) {
>> for (int i = 0; i < miblen; i++)
>> printf("%d ", mib[i]);
>> printf("\n");
>> }
>>
>> tmplen = sizeof(path);
>> if (sysctl(mib, miblen, path, (size_t *)&tmplen, NULL, 0) == 0)
>> printf("%s : %zd\n", path, tmplen);
>>
>> prints:
>> : 1
>> : 1
>> 8 21
>> /usr/local : 11
>>
>> Thanks,
>> Guy Yur
>>
>
> This is a separate (valid) problem, but not directly related to
> Scott's work here. sysctlbyname now goes directly to the kernel with
> no chance for the user.* sysctls to intercept. That should
> independently be fixed to maintain the illusion that they're real
> sysctl’s
It turns out the my userland, kernel, and startup scripts were out of
sync and this was succeeding in error for me. Thanks for the hint, I
think I have it working now.
Scott
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