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| author | Paul Eggert <eggert@cs.ucla.edu> | 2017-04-05 11:34:42 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2017-04-05 11:35:35 -0700 |
| commit | 937388c3059d321797ac327452d71494fcebc655 (patch) | |
| tree | 2c929cde39f6e104525a4fe84ff6120b3cade08e /init.cfg | |
| parent | 4c85c757e55c1b75635672624632e3e6c92c5dd1 (diff) | |
| download | coreutils-937388c3059d321797ac327452d71494fcebc655.tar.gz | |
tty: handle misconfigured namespaces
On some platforms, isatty succeeds but ttyname fails.
POSIX does not seem to allow this, but there it is.
Problem reported by Christian Brauner (Bug#26371).
While we’re at it, check for errors more carefully and return a
new exit status 4 if stdin is closed or a similar error occurs.
* doc/coreutils.texi (tty invocation): Document new behavior.
* init.cfg (stderr_fileno_):
Don't assume have_input_tty is not in the environment.
* src/tty.c (TTY_STDIN_ERROR): New constant.
(main): Exit with nonzero status if there is a usage error,
like other coreutils programs.
Check for error in getting stdin type.
* tests/misc/tty.sh: New file.
* tests/local.mk (all_tests): Add it.
Diffstat (limited to 'init.cfg')
| -rw-r--r-- | init.cfg | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -293,6 +293,7 @@ require_setfacl_() # Require a controlling input 'terminal'. require_controlling_input_terminal_() { + have_input_tty=yes tty -s || have_input_tty=no test -t 0 || have_input_tty=no if test "$have_input_tty" = no; then |