diff options
| author | Thorsten Glaser <tg@mirbsd.org> | 2014-06-11 10:02:14 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2014-07-09 08:21:02 -0700 |
| commit | 7763dd33e5b8eed4b9e3c583c02c10176fd550d3 (patch) | |
| tree | b4ff39fb18ef0ed2b921e601d5c9a6322409796e | |
| parent | 6eb77ce795189d39fc0f7bc12eb8d7be11e46718 (diff) | |
| download | klibc-7763dd33e5b8eed4b9e3c583c02c10176fd550d3.tar.gz | |
[klibc] isatty(): use TCGETS instead of TIOCGPGRP, like dietlibc doesklibc-2.0.4
While all “real” ttys may support TIOCGPGRP, /dev/console doesn’t;
using TCGETS here allows Linux booted with init=/bin/mksh-static
to have working interactive command line (PS1, editing, etc).
[ hpa: TCGETS matches glibc, so go with it ]
Reported-by: Dominik George <d.george@tarent.de>
Signed-off-by: Thorsten Glaser <t.glaser@tarent.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| -rw-r--r-- | usr/klibc/isatty.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/usr/klibc/isatty.c b/usr/klibc/isatty.c index c2e4a4ea7fba3..2359479a82a11 100644 --- a/usr/klibc/isatty.c +++ b/usr/klibc/isatty.c @@ -8,8 +8,9 @@ int isatty(int fd) { - int dummy; + struct termios dummy; /* All ttys support TIOCGPGRP */ - return !ioctl(fd, TIOCGPGRP, &dummy); + /* except /dev/console which needs TCGETS */ + return !ioctl(fd, TCGETS, &dummy); } |