node/test/pseudo-tty/test-stdout-read.out

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test: fix pty test hangs on aix Some pty tests persistently hung on the AIX CI buildbots. Fix that by adding a helper script that properly sets up the pty before spawning the script under test. On investigation I discovered that the test runner hung when it tried to close the slave pty's file descriptor, probably due to a bug in AIX's pty implementation. I could reproduce it with a short C program. The test runner also leaked file descriptors to the child process. I couldn't convince python's `subprocess.Popen()` to do what I wanted it to do so I opted to move the logic to a helper script that can do fork/setsid/etc. without having to worry about stomping on state in tools/test.py. In the process I also uncovered some bugs in the pty module of the python distro that ships with macOS 10.14, leading me to reimplement a sizable chunk of the functionality of that module. And last but not least, of course there are differences between ptys on different platforms and the helper script has to paper over that. Of course. Really, this commit took me longer to put together than I care to admit. Caveat emptor: this commit takes the hacky ^D feeding to the slave out of tools/test.py and puts it in the *.in input files. You can also feed other control characters to tests, like ^C or ^Z, simply by inserting them into the corresponding input file. I think that's nice. Fixes: https://github.com/nodejs/build/issues/1820 Fixes: https://github.com/nodejs/node/issues/28489 PR-URL: https://github.com/nodejs/node/pull/28600 Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> 2019-07-08 18:52:37 +00:00			`Hello!`
process: allow reading from stdout/stderr sockets Allow reading from stdio streams that are conventionally associated with process output, since this is only convention. This involves disabling the oddness around closing stdio streams. Its purpose is to prevent the file descriptors 0 through 2 from being closed, since doing so can lead to information leaks when new file descriptors are being opened; instead, not doing anything seems like a more reasonable choice. Fixes: https://github.com/nodejs/node/issues/21203 PR-URL: https://github.com/nodejs/node/pull/23053 Reviewed-By: James M Snell <jasnell@gmail.com> 2018-09-24 09:51:14 +00:00			`<Buffer 48 65 6c 6c 6f 21 0a>`