[newlib-cygwin] Cygwin: pty: Introduce disable_pcon in environment CYGWIN.
Corinna Vinschen
corinna@sourceware.org
Wed Jan 22 10:06:00 GMT 2020
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=cdf5db22f17b6f8e274168e3ff549f67d662bfb1
commit cdf5db22f17b6f8e274168e3ff549f67d662bfb1
Author: Takashi Yano <takashi.yano@nifty.ne.jp>
Date: Tue Jan 21 22:25:13 2020 +0900
Cygwin: pty: Introduce disable_pcon in environment CYGWIN.
- For programs which does not work properly with pseudo console,
disable_pcon in environment CYGWIN is introduced. If disable_pcon
is set, pseudo console support is disabled.
Diff:
---
winsup/cygwin/environ.cc | 1 +
winsup/cygwin/fhandler_tty.cc | 2 ++
winsup/cygwin/globals.cc | 1 +
winsup/doc/cygwinenv.xml | 6 ++++++
4 files changed, 10 insertions(+)
diff --git a/winsup/cygwin/environ.cc b/winsup/cygwin/environ.cc
index 8c5ce64..7eb4780 100644
--- a/winsup/cygwin/environ.cc
+++ b/winsup/cygwin/environ.cc
@@ -120,6 +120,7 @@ static struct parse_thing
{"reset_com", {&reset_com}, setbool, NULL, {{false}, {true}}},
{"wincmdln", {&wincmdln}, setbool, NULL, {{false}, {true}}},
{"winsymlinks", {func: set_winsymlinks}, isfunc, NULL, {{0}, {0}}},
+ {"disable_pcon", {&disable_pcon}, setbool, NULL, {{false}, {true}}},
{NULL, {0}, setdword, 0, {{0}, {0}}}
};
diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc
index 50f0378..1710f25 100644
--- a/winsup/cygwin/fhandler_tty.cc
+++ b/winsup/cygwin/fhandler_tty.cc
@@ -3145,6 +3145,8 @@ is_running_as_service (void)
bool
fhandler_pty_master::setup_pseudoconsole ()
{
+ if (disable_pcon)
+ return false;
/* If the legacy console mode is enabled, pseudo console seems
not to work as expected. To determine console mode, registry
key ForceV2 in HKEY_CURRENT_USER\Console is checked. */
diff --git a/winsup/cygwin/globals.cc b/winsup/cygwin/globals.cc
index ebe8b56..a9648fe 100644
--- a/winsup/cygwin/globals.cc
+++ b/winsup/cygwin/globals.cc
@@ -71,6 +71,7 @@ bool pipe_byte;
bool reset_com;
bool wincmdln;
winsym_t allow_winsymlinks = WSYM_sysfile;
+bool disable_pcon;
bool NO_COPY in_forkee;
diff --git a/winsup/doc/cygwinenv.xml b/winsup/doc/cygwinenv.xml
index 6f67cb9..67592cb 100644
--- a/winsup/doc/cygwinenv.xml
+++ b/winsup/doc/cygwinenv.xml
@@ -99,6 +99,12 @@ system call will immediately fail.</para>
<xref linkend="pathnames-symlinks"></xref>.</para>
</listitem>
+<listitem>
+<para><envar>disable_pcon</envar> - if set, pseudo console support in
+pty will be disabled. This is for programs which do not work properly
+under pty with pseudo console enabled. Defaults to not set.</para>
+</listitem>
+
</itemizedlist>
</sect2>
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