diff --git a/Misc/NEWS.d/next/Library/2024-01-23-21-20-40.gh-issue-114492.vKxl5o.rst b/Misc/NEWS.d/next/Library/2024-01-23-21-20-40.gh-issue-114492.vKxl5o.rst new file mode 100644 index 00000000000000..8df8299d0dffcd --- /dev/null +++ b/Misc/NEWS.d/next/Library/2024-01-23-21-20-40.gh-issue-114492.vKxl5o.rst @@ -0,0 +1,2 @@ +Make the result of :func:`termios.tcgetattr` reproducible on Alpine Linux. +Previously it could leave a random garbage in some fields. diff --git a/Modules/termios.c b/Modules/termios.c index c4f0fd9d50044a..69dbd88be5fcc2 100644 --- a/Modules/termios.c +++ b/Modules/termios.c @@ -98,6 +98,8 @@ termios_tcgetattr_impl(PyObject *module, int fd) struct termios mode; int r; + /* Alpine Linux can leave some fields uninitialized. */ + memset(&mode, 0, sizeof(mode)); Py_BEGIN_ALLOW_THREADS r = tcgetattr(fd, &mode); Py_END_ALLOW_THREADS