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| author | Eric Blake <eblake@redhat.com> | 2013-05-22 14:21:36 -0600 |
|---|---|---|
| committer | Eric Blake <eblake@redhat.com> | 2013-05-22 14:21:36 -0600 |
| commit | e28fbd787cb4861a7848ac6e86c838912b8cd2ec (patch) | |
| tree | f35049980a475917a916d0113f5136b90805c78e /doc/glibc-functions/getgrouplist.texi | |
| parent | eaa61c1d42dc605654a0e3073ac693a50bf1d2b8 (diff) | |
| download | gnulib-e28fbd787cb4861a7848ac6e86c838912b8cd2ec.tar.gz | |
getgroups: document portability issues
Because I actually managed to hit deadlock in libvirt's child
process due to glibc's mutex use in user database lookup, I
figured it is worth documenting the issue for others to be
aware of when writing a privileged multithreaded parent app
that spawns child processes owned by non-privileged ids.
* doc/glibc-functions/initgroups.texi (initgroups): Mention
multithread safety.
* doc/posix-functions/getpwuid.texi (getpwuid): Likewise.
* doc/posix-functions/getpwuid_r.texi (getpwuid_r): Likewise.
* doc/glibc-functions/getgrouplist.texi (getgrouplist): Mention
getugroups.
* doc/posix-functions/getgroups.texi (getgroups): Mention
multithread safety and mgetgroups.
Signed-off-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'doc/glibc-functions/getgrouplist.texi')
| -rw-r--r-- | doc/glibc-functions/getgrouplist.texi | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/glibc-functions/getgrouplist.texi b/doc/glibc-functions/getgrouplist.texi index e0dfa4976e..8a37cb1e9d 100644 --- a/doc/glibc-functions/getgrouplist.texi +++ b/doc/glibc-functions/getgrouplist.texi @@ -14,3 +14,5 @@ Portability problems not fixed by Gnulib: This function is missing on some platforms: Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 11 2011-11, Cygwin 1.7.9, mingw, MSVC 9, BeOS. @end itemize + +The Gnulib module @code{getugroups} provides a similar API. |