diff options
| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2012-12-20 16:22:58 +0100 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2012-12-20 16:22:58 +0100 |
| commit | 35d740b95e799f44543fa044db9bbf68162d4bcb (patch) | |
| tree | 9975d7aeba85638143cb52eed88d76722a5f2042 | |
| parent | cab67c641af7bdd34293ae0aa257dc0c1221e93d (diff) | |
| download | man-pages-35d740b95e799f44543fa044db9bbf68162d4bcb.tar.gz | |
mkstemp.3: Deemphasize discussion of mode 066 in glibc 2.0.6
Glibc 2.0.6 is now so ld that the discussion of details
of that version can be deemphasized placing just under
NOTES.
See https://bugzilla.kernel.org/show_bug.cgi?id=51811
Reported-by: Florian Weimer <fweimer@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
| -rw-r--r-- | man3/mkstemp.3 | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/man3/mkstemp.3 b/man3/mkstemp.3 index 7765a2b004..daf69819b5 100644 --- a/man3/mkstemp.3 +++ b/man3/mkstemp.3 @@ -30,7 +30,7 @@ .\" Modified 990328, aeb .\" 2008-06-19, mtk, Added mkostemp(); various other changes .\" -.TH MKSTEMP 3 2012-04-21 "GNU" "Linux Programmer's Manual" +.TH MKSTEMP 3 2012-12-21 "GNU" "Linux Programmer's Manual" .SH NAME mkstemp, mkostemp, mkstemps, mkostemps \- create a unique temporary file .SH SYNOPSIS @@ -89,8 +89,6 @@ must not be a string constant, but should be declared as a character array. The file is created with permissions 0600, that is, read plus write for owner only. -(In glibc versions 2.06 and earlier, the file is created with permissions 0666, -that is, read and write for all users.) The returned file descriptor provides both read and write access to the file. The file is opened with the .BR open (2) @@ -187,9 +185,12 @@ and .BR mkostemps (): are glibc extensions. .SH NOTES -The old behavior of creating a file with mode 0666 may be +In glibc versions 2.06 and earlier, the file is created with permissions 0666, +that is, read and write for all users. +This old behavior may be a security risk, especially since other UNIX flavors use 0600, and somebody might overlook this detail when porting programs. +POSIX.1-2008 adds a requirement that the file be created with mode 0600. More generally, the POSIX specification of .BR mkstemp () |