X-Recipient:	archive-cygwin AT delorie DOT com
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org EDD1F398C807
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1600387105;
	bh=P7qTSQIgZzSu4FITE3abeCdDXTRUaVxpq1oFrBImA4Q=;
	h=References:In-Reply-To:Date:Subject:To:List-Id:List-Unsubscribe:
	List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:
	From;
	b=Dho5FxwmQgvisE4tV50G//TAAZ+5aDJN39I563sagIw2sOJmlZ78QpmINH2QzuzBT
	WCTllIeeRIfVkgn0yydStldLJhCOH4YU4FprsAVfQaMtrkx/jGOhSA/msV6fkUe/py
	mMYIXQzF6hklWyY5k07HRbAxN5AZo3RVjDCpizsY=
X-Original-To:	cygwin AT cygwin DOT com
Delivered-To:	cygwin AT cygwin DOT com
DMARC-Filter:	OpenDMARC Filter v1.3.2 sourceware.org BDF023851C25
X-Google-DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed;
	d=1e100.net; s=20161025;
	h=x-gm-message-state:mime-version:references:in-reply-to:from:date
	:message-id:subject:to;
	bh=BrDjhKYBYCmBp5pDsyTpYYB22fhgo9S+M2PCOYw2Tlc=;
	b=sxifYssK6L+j/bsfvGLVcgTGRcmHVJhHmQRI6aDQjsPqDNIs/DoCrtXdidJvByb/yr
	rQ0DaWDuYJEEiTw/RR14Mf4c5KTFb43dlW5YOaCVbvkuQTzXj3j528eTpxl9giZQb5Hy
	eGYroMrx0TREmgVzDnYncGN+htAb0mgLunrUhmM3glIIgYF0n+HJllDQa28fPcTffcl7
	BGOWDpi8iGG9JxFBxjXOhAAOUQPioB9bv3YRV3voLX8FqihO2tk7APVEWk27yW0Ykb/T
	jdyPqSqdrRl6GbBzt++qfJDD/zXx2gLOCAGmXswJC+cjeItHG6LjdDnCq/JY2BHt7pDE
	rljA==
X-Gm-Message-State:	AOAM5324gbIgZBPwCq6F3KcI4qxbL33YcYySfiAitZNWP14C+u4oClt+
	DuT+oH7LG+nNWsII1ZVMDO8/s3O96uxrIqk3zyHB8faFAqOA2w==
X-Google-Smtp-Source:	ABdhPJwmkKeXddO99NyhwT3rBwmRLJ3DjfExgXteoe3mnIt8BLZ9vHteMHYv896dbd3eB/BpHsVD9dY6mOSOPIVLCkc=
X-Received:	by 2002:a02:8782:: with SMTP id t2mr27794736jai.56.1600387101853;
	Thu, 17 Sep 2020 16:58:21 -0700 (PDT)
MIME-Version:	1.0
References:	<3423eb8a-447e-015e-9eb7-84d455db0c4f AT towo DOT net>
	<F4798AA8-0860-4910-8F48-86C1BAE383DF AT gmail DOT com>
	<423c729e-4c66-dd5e-73c0-4c636089ea35 AT cornell DOT edu>
In-Reply-To:	<423c729e-4c66-dd5e-73c0-4c636089ea35@cornell.edu>
Date:	Thu, 17 Sep 2020 17:58:10 -0600
Message-ID:	<CAJ1FpuPx6giEVm52Aa9YfPNzcZAwuHW+Dtw8ofFt12Qp9nTjPg@mail.gmail.com>
Subject:	Re: TMP/TEMP environment variable and /tmp
To:	cygwin <cygwin AT cygwin DOT com>
X-Spam-Status:	No, score=-1.4 required=5.0 tests=BAYES_00, DKIM_SIGNED,
	DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, FROM_LOCAL_NOVOWEL,
	HK_RANDOM_ENVFROM, HK_RANDOM_FROM, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS,
	TXREP autolearn=no autolearn_force=no version=3.4.2
X-Spam-Checker-Version:	SpamAssassin 3.4.2 (2018-09-13) on
	server2.sourceware.org
X-BeenThere:	cygwin AT cygwin DOT com
X-Mailman-Version:	2.1.29
List-Id:	General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Archive:	<https://cygwin.com/pipermail/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe:	<https://cygwin.com/mailman/listinfo/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From:	Doug Henderson via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Doug Henderson <djndnbvg AT gmail DOT com>
Sender:	"Cygwin" <cygwin-bounces AT cygwin DOT com>

On Thu, 17 Sep 2020 at 15:56, Ken Brown via Cygwin <> wrote:
>

#include <stdio.h>
#include <stdlib.h>
int
main ()
{
    char *temp_nam;
    char *p_tmp_nam;

    printf ("$TMP      is '%s'\n", getenv ("TMP"));
    printf ("$TMPDIR   is '%s'\n", getenv ("TMPDIR"));
    printf ("$TEMP     is '%s'\n", getenv ("TEMP"));
    printf ("P_tmpdir  is '%s'\n", P_tmpdir);
    p_tmp_nam = tmpnam(0);
    printf ("tmpnam()  is '%s'\n", p_tmp_nam);
    temp_nam = tempnam(0, 0);
    printf ("tempnam() is '%s'\n", temp_nam);
    free(temp_nam);
}


# start a new shell
$ sh
$ TMP= TEMP= ./show_tmp
$TMP      is ''
$TMPDIR   is '(null)'
$TEMP     is ''
P_tmpdir  is '/tmp'
tmpnam()  is '/tmp/t707.0'
tempnam() is '/tmp/ffffd187.2'

# start cmd.exe
$ /cygdrive/c/windows/system32/cmd.exe
Microsoft Windows [Version 10.0.18363.1082]
(c) 2019 Microsoft Corporation. All rights reserved.
>set TMP=
>set TEMP=
> show_tmp
$TMP      is '(null)'
$TMPDIR   is '(null)'
$TEMP     is '(null)'
P_tmpdir  is '/tmp'
tmpnam()  is '/tmp/t709.0'
tempnam() is '/tmp/ffffd189.2'

P_tmpdir is defined in <stdio.h>


-- 
Doug Henderson, Calgary, Alberta, Canada - from gmail.com
--
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple

- Raw text -