[newlib-cygwin] Cygwin: pty: Change the timing of set_locale() call again.

[newlib-cygwin] Cygwin: pty: Change the timing of set_locale() call again.

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=70d02aaca6ca4aa8990c673b2b0d2220ae813ee4

commit 70d02aaca6ca4aa8990c673b2b0d2220ae813ee4
Author: Takashi Yano via Cygwin-patches <cygwin-patches@cygwin.com>
Date:   Sat Aug 15 12:23:52 2020 +0900

    Cygwin: pty: Change the timing of set_locale() call again.
    
    - After commit 095972ce5b1d319915501a7e381802914bed790c, charset
      conversion in mintty is broken if charset is set to other than
      UTF-8. This seems to be caused because mintty does not set locale
      yet at fork() call. This patch changes the timing of set_locale()
      call again to avoid this issue.

Diff:
---
 winsup/cygwin/fhandler_tty.cc | 10 ++++++----
 winsup/cygwin/spawn.cc        | 12 ++++++++++++
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc
index 40b79bfbb..6294e2c20 100644
--- a/winsup/cygwin/fhandler_tty.cc
+++ b/winsup/cygwin/fhandler_tty.cc
@@ -2852,6 +2852,9 @@ get_langinfo (char *locale_out, char *charset_out)
 void
 fhandler_pty_slave::setup_locale (void)
 {
+  if (get_ttyp ()->term_code_page != 0)
+    return;
+
   char locale[ENCODING_LEN + 1] = "C";
   char charset[ENCODING_LEN + 1] = "ASCII";
   LCID lcid = get_langinfo (locale, charset);
@@ -2983,10 +2986,6 @@ fhandler_pty_slave::fixup_after_fork (HANDLE parent)
   // fork_fixup (parent, inuse, "inuse");
   // fhandler_pty_common::fixup_after_fork (parent);
   report_tty_counts (this, "inherited", "");
-
-  /* Set locale */
-  if (get_ttyp ()->term_code_page == 0)
-    setup_locale ();
 }
 
 void
@@ -3024,6 +3023,9 @@ fhandler_pty_slave::fixup_after_exec ()
 	}
     }
 
+  /* Set locale */
+  setup_locale ();
+
   /* Hook Console API */
   if (get_pseudo_console ())
     {
diff --git a/winsup/cygwin/spawn.cc b/winsup/cygwin/spawn.cc
index e70ceb86d..af177c0f1 100644
--- a/winsup/cygwin/spawn.cc
+++ b/winsup/cygwin/spawn.cc
@@ -628,6 +628,18 @@ child_info_spawn::worker (const char *prog_arg, const char *const *argv,
 	    }
 	}
 
+      if (!iscygwin ())
+	{
+	  cfd.rewind ();
+	  while (cfd.next () >= 0)
+	    if (cfd->get_major () == DEV_PTYS_MAJOR)
+	      {
+		fhandler_pty_slave *ptys =
+		  (fhandler_pty_slave *)(fhandler_base *) cfd;
+		ptys->setup_locale ();
+	      }
+	}
+
       /* Set up needed handles for stdio */
       si.dwFlags = STARTF_USESTDHANDLES;
       si.hStdInput = handle ((in__stdin < 0 ? 0 : in__stdin), false,