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[Bug libc/2898] New: [improve] warning: the use of `mktemp' is dangerous, better use `mkstemp'
- From: "jari dot aalto at cante dot net" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: 10 Jul 2006 16:18:02 -0000
- Subject: [Bug libc/2898] New: [improve] warning: the use of `mktemp' is dangerous, better use `mkstemp'
- Reply-to: sourceware-bugzilla at sourceware dot org
This repost from
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28310
in request of gcc maintainers to report this bug to glib.
- - -
While compiling binutils-2.17 from (Debian) sources, gcc reports following:
bucomm.o: In function `make_tempname':
/usr/src/net/deb/src/binutils-2.17/binutils/bucomm.c:426: warning: the use\
of `mktemp' is dangerous, better use `mkstemp'
The proper fix is to use `mkdtemp' in the code, but the error message
does not tell this. The developers may mistakenly disregard this
message when they think "Oh, I create directories and `mkstemp' cannot
create directories, so the warning does not apply to this code".
SUGGESTION
a) Add to the manual page, mkstemp.1, that this function works for files
only. Add Crosss reference to mkdtemp and vice versa
(from mkdtemp => mkstemp.1)
b) Implement better checking in gcc to differtiate directories from files
when displaying warning about use of mktemp function.
OR
mention both mkstemp and mkdtemp in the warning message if the
parser cannot know which is the case
- - -
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'stable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/dash
Kernel: Linux 2.6.16-2-686
Locale: LANG=C, LC_CTYPE=C (charmap=ISO-8859-1) (ignored: LC_ALL set to en_US)
Versions of packages gcc depends on:
ii cpp 4:4.1.1-3 The GNU C preprocessor (cpp)
ii gcc-4.1 4.1.1-7 The GNU C compiler
Versions of packages gcc recommends:
ii libc6-dev [libc-dev] 2.3.6-15 GNU C Library: Development Librar\
i
--
Summary: [improve] warning: the use of `mktemp' is dangerous,
better use `mkstemp'
Product: glibc
Version: 2.3.6
Status: NEW
Severity: normal
Priority: P2
Component: libc
AssignedTo: drepper at redhat dot com
ReportedBy: jari dot aalto at cante dot net
CC: glibc-bugs at sources dot redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=2898
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