Use binary-io module, O_BINARY, and "b" flag.

* admin/merge-gnulib (GNULIB_MODULES): Add binary-io.  It was already
present implicitly; this just makes the dependence explicit.
* lib-src/etags.c, lib-src/hexl.c, lib-src/make-docfile.c:
Include binary-io.h instead of fcntl.h and/or io.h.
(main): Use set_binary_mode or SET_BINARY
in place of handcrafted code.
* lib-src/etags.c (main) [DOS_NT]:
* lib-src/movemail.c (main) [WINDOWSNT]:
Don't mess with _fmode.
* lib-src/etags.c (main, process_file_name, analyse_regex):
Use fopen/popen's "b" flag instead.
* lib-src/movemail.c (main, popmail): Use open/lk_open/mkostemp's O_BINARY
instead.
* src/callproc.c (create_temp_file): Use mkostemp's O_BINARY flag.
* src/emacs.c [MSDOS]:
* src/emacs.c (main) [DOS_NT]: Don't mess with _fmode.
(main) [MSDOS]: Use SET_BINARY instead of setmode.
* src/minibuf.c: Include binary-io.h instead of fcntl.h.
(read_minibuf_noninteractive):
Use set_binary_mode instead of handcrafted code.
Don't call emacs_set_tty if emacs_get_tty failed.
* src/sysdep.c, src/systty.h (emacs_get_tty): Return int, not void.
* src/sysdep.c (emacs_open, emacs_pipe): Use O_BINARY.
* src/w32.c (pipe2): Adjust eassert to include O_BINARY.

Fixes: debbugs:18006

1 files changed, 4 insertions, 17 deletions

diff --git a/lib-src/make-docfile.c b/lib-src/make-docfile.c
index 6692a0a6450..cb0a56607f8 100644
--- a/lib-src/make-docfile.c
+++ b/lib-src/make-docfile.c
@@ -38,17 +38,16 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <stdio.h>
 #include <stdlib.h>   /* config.h unconditionally includes this anyway */
-#ifdef MSDOS
-#include <fcntl.h>
-#endif /* MSDOS */
+
 #ifdef WINDOWSNT
 /* Defined to be sys_fopen in ms-w32.h, but only #ifdef emacs, so this
    is really just insurance.  */
 #undef fopen
-#include <fcntl.h>
 #include <direct.h>
 #endif /* WINDOWSNT */
 
+#include <binary-io.h>
+
 #ifdef DOS_NT
 /* Defined to be sys_chdir in ms-w32.h, but only #ifdef emacs, so this
    is really just insurance.
@@ -167,19 +166,7 @@ main (int argc, char **argv)
       ++i;
     }
 
-  /* Don't put CRs in the output file.  */
-#ifdef MSDOS
-  _fmode = O_BINARY;
-#if 0  /* Suspicion is that this causes hanging.
-	  So instead we require people to use -o on MSDOS.  */
-  (stdout)->_flag &= ~_IOTEXT;
-  _setmode (fileno (stdout), O_BINARY);
-#endif
-#endif /* MSDOS */
-#ifdef WINDOWSNT
-  _fmode = O_BINARY;
-  _setmode (fileno (stdout), O_BINARY);
-#endif /* WINDOWSNT */
+  set_binary_mode (fileno (stdout), O_BINARY);
 
   if (generate_globals)
     start_globals ();