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Re: Help with C clearenv and setenv




Eliot Moss,

This worked perfectly:

char *dummy = NULL;
environ = &dummy;

Thank you so much.

--Sam

On Mon, Jun 4, 2018 at 4:22 PM, Sam Habiel <sam.habiel@xxxxxxxxx> wrote:
> Thank you!
>
> On Mon, Jun 4, 2018 at 3:39 PM, Ken Brown <kbrown@xxxxxxxxxxx> wrote:
>> On 5/31/2018 9:43 AM, Eric Blake wrote:
>>>
>>> On 05/30/2018 09:48 AM, Sam Habiel wrote:
>>>>
>>>> I have code for a database I am porting to Cygwin.
>>>>
>>>> Part of that code is a clearenv() then a couple of setenvs. There is
>>>> an ifdef for Cygwin, as it doesn't implement clearenv.
>>>
>>>
>>> It wouldn't be hard to implement clearenv() for a future release of
>>> Cygwin, at least for a version that leaves environ pointing to a 1-element
>>> array containing NULL.  A bit more effort and we could probably also support
>>> glibc's notion of environ==NULL being shorthand for an empty environment;
>>
>>
>> I've attempted to do this:
>>
>>   https://cygwin.com/ml/cygwin-patches/2018-q2/msg00024.html
>>
>> Ken

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