From: mason@primenet.com.au (Geoff Wing)
To: zsh-workers@math.gatech.edu
Subject: Re: ``mktemp() possibly used unsafely''
Date: 5 May 1998 02:59:16 GMT [thread overview]
Message-ID: <slrn6kt044.o4k.mason@coral.primenet.com.au> (raw)
In-Reply-To: <199805050231.WAA27346@luomat.peak.org>
Timothy J Luoma <luomat+Lists/Zsh/workers@luomat.peak.org> typed:
:I just compiled 3.05 on a NetBSD 1.3 machine and saw this warning:
:utils.o: warning: mktemp() possibly used unsafely, consider using mkstemp ()
:What is the danger here? How do I change to mkstemp ?
mkstemp() atomically creates the temporary file, whereas when using mktemp()
someone could create a file of the same name between calling mktemp() and
creating that file.
When zsh uses mktemp() it open()s those files with flags O_CREAT and O_EXCL
or runs mkfifo()/mknod() on it, and it's not a problem for us since we
properly check the return values (I believe), so we don't need to change
anything here.
--
Geoff Wing <gcw@pobox.com> Mobile : 0412 162 441
Work URL: http://www.primenet.com.au/ Ego URL: http://pobox.com/~gcw/
next prev parent reply other threads:[~1998-05-05 3:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-05-05 2:31 Timothy J Luoma
1998-05-05 2:59 ` Geoff Wing [this message]
1998-05-05 5:06 ` Zoltan Hidvegi
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=slrn6kt044.o4k.mason@coral.primenet.com.au \
--to=mason@primenet.com.au \
--cc=zsh-workers@math.gatech.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/zsh/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).