diff options
Diffstat (limited to 'newlib')
| -rw-r--r-- | newlib/libc/stdio/findfp.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/newlib/libc/stdio/findfp.c b/newlib/libc/stdio/findfp.c index 737bde102..9d7764009 100644 --- a/newlib/libc/stdio/findfp.c +++ b/newlib/libc/stdio/findfp.c @@ -293,6 +293,26 @@ _DEFUN(__sinit, (s), stderr_init (s->_stderr); #endif + /* Cygnal: __SCLE is added to all descriptors to make + enable line-ending conversion. */ + std (s->_stdin, __SRD | __SCLE, 0); + + /* On platforms that have true file system I/O, we can verify + whether stdout is an interactive terminal or not, as part of + __smakebuf on first use of the stream. For all other platforms, + we will default to line buffered mode here. Technically, POSIX + requires both stdin and stdout to be line-buffered, but tradition + leaves stdin alone on systems without fcntl. */ +#ifdef HAVE_FCNTL + std (s->_stdout, __SWR | __SCLE, 1); +#else + std (s->_stdout, __SWR | __SLBF | __SCLE, 1); +#endif + + /* POSIX requires stderr to be opened for reading and writing, even + when the underlying fd 2 is write-only. */ + std (s->_stderr, __SRW | __SNBF | __SCLE, 2); + s->__sdidinit = 1; __sinit_lock_release (); |