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| author | Kamil Dudka <kdudka@redhat.com> | 2010-01-22 15:17:19 +0100 |
|---|---|---|
| committer | Jim Meyering <meyering@redhat.com> | 2010-01-25 11:43:49 +0100 |
| commit | aad0bde0b5aa6ccf2714f43676d4941f820c6283 (patch) | |
| tree | a086cfa067f6896226dfaea57b2bf44b6fa36a5a /m4 | |
| parent | 0caead1ea0b2ef63173cde6b583249bea3194817 (diff) | |
| download | coreutils-aad0bde0b5aa6ccf2714f43676d4941f820c6283.tar.xz | |
who --mesg (-T) can use a more accurate test for TTY writability
Enabled when coreutils is configured with --with-tty-group.
Based on a patch written by Piotr Gackiewicz. Details at
http://bugzilla.redhat.com/454261
* src/who.c (is_tty_writable): A new function returning true if a TTY
device is writable by the group. Additionally it checks the group to be
the same as TTY_GROUP_NAME when compiled with --with-tty-group.
* m4/jm-macros.m4: Introduce a new configure option --with-tty-group.
* NEWS: Mention the change.
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/jm-macros.m4 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/m4/jm-macros.m4 b/m4/jm-macros.m4 index 271382723..0ddbf2fdc 100644 --- a/m4/jm-macros.m4 +++ b/m4/jm-macros.m4 @@ -144,6 +144,25 @@ AC_DEFUN([coreutils_MACROS], ]) AC_REQUIRE([AM_LANGINFO_CODESET]) + + # Accept configure options: --with-tty-group[=GROUP], --without-tty-group + # You can determine the group of a TTY via 'stat --format %G /dev/tty' + # Omitting this option is equivalent to using --without-tty-group. + AC_ARG_WITH([tty-group], + AS_HELP_STRING([--with-tty-group[[[=NAME]]]], + [group used by system for TTYs, "tty" when not specified] + [ (default: do not rely on any group used for TTYs)]), + [tty_group_name=$withval], + [tty_group_name=no]) + + if test "x$tty_group_name" != xno; then + if test "x$tty_group_name" = xyes; then + tty_group_name=tty + fi + AC_MSG_NOTICE([TTY group used by system set to "$tty_group_name"]) + AC_DEFINE_UNQUOTED([TTY_GROUP_NAME], ["$tty_group_name"], + [group used by system for TTYs]) + fi ]) AC_DEFUN([gl_CHECK_ALL_HEADERS], |