From eafad96a6a54c525625ab31cf30cd741ec383492 Mon Sep 17 00:00:00 2001

From: Debarshi Ray <debarshir@gnome.org>

Date: Tue, 25 Apr 2017 17:15:36 +0200

Subject: [PATCH 1/4] Restore gnome-pty-helper

https://bugzilla.redhat.com/show_bug.cgi?id=1443504

---

 Makefile.am                            |   5 +

 configure.ac                           |  32 +-

 gnome-pty-helper/AUTHORS               |   4 +

 gnome-pty-helper/COPYING               | 502 ++++++++++++++++++++++

 gnome-pty-helper/Makefile.am           |  32 ++

 gnome-pty-helper/README                |   9 +

 gnome-pty-helper/acinclude.m4          | 244 +++++++++++

 gnome-pty-helper/configure.ac          |  33 ++

 gnome-pty-helper/git.mk                |   1 +

 gnome-pty-helper/gnome-login-support.c | 380 +++++++++++++++++

 gnome-pty-helper/gnome-login-support.h |  39 ++

 gnome-pty-helper/gnome-pty-helper.c    | 751 +++++++++++++++++++++++++++++++++

 gnome-pty-helper/gnome-pty.h           |  22 +

 gnome-pty-helper/gnome-utmp.c          | 374 ++++++++++++++++

 src/pty.cc                             | 526 ++++++++++++++++++++++-

 src/vte.cc                             |   2 +

 src/vte/vteenums.h                     |  15 +-

 17 files changed, 2953 insertions(+), 18 deletions(-)

 create mode 100644 gnome-pty-helper/AUTHORS

 create mode 100644 gnome-pty-helper/COPYING

 create mode 100644 gnome-pty-helper/Makefile.am

 create mode 100644 gnome-pty-helper/README

 create mode 100644 gnome-pty-helper/acinclude.m4

 create mode 100644 gnome-pty-helper/configure.ac

 create mode 100644 gnome-pty-helper/git.mk

 create mode 100644 gnome-pty-helper/gnome-login-support.c

 create mode 100644 gnome-pty-helper/gnome-login-support.h

 create mode 100644 gnome-pty-helper/gnome-pty-helper.c

 create mode 100644 gnome-pty-helper/gnome-pty.h

 create mode 100644 gnome-pty-helper/gnome-utmp.c

diff --git a/Makefile.am b/Makefile.am

index 10c9c93b84a9..1603cce544f8 100644

--- a/Makefile.am

+++ b/Makefile.am

@@ -12,6 +12,10 @@ EXTRA_DIST = \

 DISTCLEANFILES =

+if BUILD_GNOME_PTY_HELPER

+SUBDIRS += gnome-pty-helper

+endif

+

 if ENABLE_GLADE_CATALOGUE

 SUBDIRS += glade

 endif

@@ -24,6 +28,7 @@ DISTCHECK_CONFIGURE_FLAGS = \

 	--enable-introspection \

 	--disable-vala \

 	--disable-test-application \

+	--enable-gnome-pty-helper \

 	--disable-silent-rules \

 	--with-gtk=$(GTK_API_VERSION)

diff --git a/configure.ac b/configure.ac

index a2f8792e2193..6f73b0a240f5 100644

--- a/configure.ac

+++ b/configure.ac

@@ -278,9 +278,22 @@ VTE_DEFAULT_TERM=xterm-256color

 AC_DEFINE_UNQUOTED(VTE_DEFAULT_TERM,"$VTE_DEFAULT_TERM",[The default value $TERM is set to.])

 # Check for headers.

-AC_CHECK_HEADERS([sys/select.h sys/syslimits.h sys/termios.h sys/wait.h stropts.h termios.h util.h wchar.h pty.h])

+AC_CHECK_HEADERS([sys/select.h sys/syslimits.h sys/termios.h sys/un.h sys/wait.h stropts.h termios.h util.h wchar.h pty.h])

 AC_HEADER_TIOCGWINSZ

+AC_CHECK_FUNC(socket,[have_socket=1],AC_CHECK_LIB(socket,socket,[have_socket=1; LIBS="$LIBS -lsocket"]))

+AC_CHECK_FUNC(socketpair,[have_socketpair=1],AC_CHECK_LIB(socket,socketpair,[have_socketpair=1; LIBS="$LIBS -lsocket"]))

+AC_CHECK_FUNC(recvmsg,[have_recvmsg=1],AC_CHECK_LIB(socket,recvmsg,[have_recvmsg=1; LIBS="$LIBS -lsocket -lnsl"]))

+if test x$have_socket = x1 ; then

+	AC_DEFINE(HAVE_SOCKET,1,[Define if you have the socket function.])

+fi

+if test x$have_socketpair = x1 ; then

+	AC_DEFINE(HAVE_SOCKETPAIR,1,[Define if you have the socketpair function.])

+fi

+if test x$have_recvmsg = x1 ; then

+	AC_DEFINE(HAVE_RECVMSG,1,[Define if you have the recvmsg function.])

+fi

+

 # Check for how to open a new PTY. We support posix_openpt and BSDs openpty

 AC_CHECK_FUNCS([posix_openpt grantpt unlockpt ptsname],[],

@@ -322,6 +335,22 @@ PKG_CHECK_MODULES([APP],[

   gdk-pixbuf-2.0

   gtk+-$GTK_API_VERSION >= $GTK_REQUIRED])

+################################################################################

+# GNOME PTY Helper

+################################################################################

+

+AC_MSG_CHECKING([whether to build the PTY helper binary])

+AC_ARG_ENABLE(gnome-pty-helper,

+  [AS_HELP_STRING([--disable-gnome-pty-helper],

+                  [Build a setuid helper for opening ptys])],

+  [],[enable_gnome_pty_helper=no])

+AC_MSG_RESULT([$enable_gnome_pty_helper])

+if test "$enable_gnome_pty_helper" != no; then

+	AC_DEFINE(VTE_USE_GNOME_PTY_HELPER,1,[Define if you intend to use gnome-pty-helper.])

+	AC_CONFIG_SUBDIRS(gnome-pty-helper)

+fi

+AM_CONDITIONAL(BUILD_GNOME_PTY_HELPER,[test "$enable_gnome_pty_helper" != no])

+

 ################################################################################

 # Glade catalogue

 ################################################################################

@@ -465,4 +494,5 @@ Configuration for libvte $VERSION for gtk+-$GTK_API_VERSION

 	Debugging: $enable_debug

 	Introspection: $enable_introspection

         Vala bindings: $enable_vala

+	PTY helper: $enable_gnome_pty_helper

 EOF

diff --git a/gnome-pty-helper/AUTHORS b/gnome-pty-helper/AUTHORS

new file mode 100644

index 000000000000..99a686ffedff

--- /dev/null

+++ b/gnome-pty-helper/AUTHORS

@@ -0,0 +1,4 @@

+Michael Zucchi <zucchi@helixcode.com>

+Dugan Porter

+Miguel de Icaza <miguel@gnu.org>

+Timur Bakeyev <timur@gnu.org>

diff --git a/gnome-pty-helper/COPYING b/gnome-pty-helper/COPYING

new file mode 100644

index 000000000000..4362b49151d7

--- /dev/null

+++ b/gnome-pty-helper/COPYING

@@ -0,0 +1,502 @@

+                  GNU LESSER GENERAL PUBLIC LICENSE

+                       Version 2.1, February 1999

+

+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.

+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

+ Everyone is permitted to copy and distribute verbatim copies

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+

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+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE

+LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME

+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

+

+  16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN

+WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY

+AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU

+FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR

+CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE

+LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING

+RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A

+FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF

+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH

+DAMAGES.

+

+                     END OF TERMS AND CONDITIONS

+

+           How to Apply These Terms to Your New Libraries

+

+  If you develop a new library, and you want it to be of the greatest

+possible use to the public, we recommend making it free software that

+everyone can redistribute and change.  You can do so by permitting

+redistribution under these terms (or, alternatively, under the terms of the

+ordinary General Public License).

+

+  To apply these terms, attach the following notices to the library.  It is

+safest to attach them to the start of each source file to most effectively

+convey the exclusion of warranty; and each file should have at least the

+"copyright" line and a pointer to where the full notice is found.

+

+    <one line to give the library's name and a brief idea of what it does.>

+    Copyright (C) <year>  <name of author>

+

+    This library is free software; you can redistribute it and/or

+    modify it under the terms of the GNU Lesser General Public

+    License as published by the Free Software Foundation; either

+    version 2.1 of the License, or (at your option) any later version.

+

+    This library is distributed in the hope that it will be useful,

+    but WITHOUT ANY WARRANTY; without even the implied warranty of

+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+    Lesser General Public License for more details.

+

+    You should have received a copy of the GNU Lesser General Public

+    License along with this library; if not, write to the Free Software

+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

+

+Also add information on how to contact you by electronic and paper mail.

+

+You should also get your employer (if you work as a programmer) or your

+school, if any, to sign a "copyright disclaimer" for the library, if

+necessary.  Here is a sample; alter the names:

+

+  Yoyodyne, Inc., hereby disclaims all copyright interest in the

+  library `Frob' (a library for tweaking knobs) written by James Random Hacker.

+

+  <signature of Ty Coon>, 1 April 1990

+  Ty Coon, President of Vice

+

+That's all there is to it!

diff --git a/gnome-pty-helper/Makefile.am b/gnome-pty-helper/Makefile.am

new file mode 100644

index 000000000000..10a1c896e958

--- /dev/null

+++ b/gnome-pty-helper/Makefile.am

@@ -0,0 +1,32 @@

+libexec_PROGRAMS = gnome-pty-helper

+

+gnome_pty_helper_SOURCES = \

+	gnome-pty.h \

+	gnome-login-support.c \

+	gnome-login-support.h \

+	gnome-pty-helper.c \

+	gnome-utmp.c

+

+gnome_pty_helper_CFLAGS = $(SUID_CFLAGS) $(AM_CFLAGS)

+gnome_pty_helper_LDFLAGS = $(SUID_LDFLAGS) $(AM_LDFLAGS)

+

+install-exec-hook:

+	chown root.utmp $(DESTDIR)$(libexecdir)/gnome-pty-helper || true

+	chmod g+s       $(DESTDIR)$(libexecdir)/gnome-pty-helper || true

+

+MAINTAINERCLEANFILES = \

+		$(srcdir)/INSTALL \

+		$(srcdir)/aclocal.m4 \

+		$(srcdir)/config.guess \

+		$(srcdir)/config.h.in \

+		$(srcdir)/config.sub \

+		$(srcdir)/configure \

+		$(srcdir)/depcomp \

+		$(srcdir)/install-sh \

+		$(srcdir)/mkinstalldirs \

+		$(srcdir)/missing \

+		$(srcdir)/omf.make \

+		$(srcdir)/xmldocs.make \

+		`find "$(srcdir)" -type f -name Makefile.in -print`

+

+-include $(top_srcdir)/git.mk

diff --git a/gnome-pty-helper/README b/gnome-pty-helper/README

new file mode 100644

index 000000000000..b760129a0dde

--- /dev/null

+++ b/gnome-pty-helper/README

@@ -0,0 +1,9 @@

+This is some bits from libzvt CVS extracted to make a more-or-less standalone

+gnome-pty-helper kit.  Presumably it is licensed under the LGPL, as libzvt

+itself is.

+

+Note that for utmp/wtmp/lastlog logging to work properly, you *must* ensure

+that gnome-pty-helper is installed with the correct permissions.  By default,

+gnome-pty-helper is installed setgid "utmp".  If your system does not have a

+group named "utmp" (or if this group does not have write access to the

+corresponding log files), then it will probably need to be made setuid "root".

diff --git a/gnome-pty-helper/acinclude.m4 b/gnome-pty-helper/acinclude.m4

new file mode 100644

index 000000000000..6e8eadbc51f6

--- /dev/null

+++ b/gnome-pty-helper/acinclude.m4

@@ -0,0 +1,244 @@

+# Checks for availability of various utmp fields

+#

+# Original code by Bernhard Rosenkraenzer (bero@linux.net.eu.org), 1998.

+# Modifications by Timur Bakeyev (timur@gnu.org), 1999.

+# Patched from http://bugzilla.gnome.org/show_bug.cgi?id=93774

+#

+

+dnl GPH_CHECK_UTMP()

+dnl Test for presence of the field and define HAVE_UT_UT_field macro

+dnl

+

+AC_DEFUN([GPH_CHECK_UTMP],[

+

+AC_CHECK_HEADERS(sys/time.h utmp.h utmpx.h)

+AC_HEADER_TIME

+

+if test "$ac_cv_header_utmpx_h" = "yes"; then

+    AC_DEFINE(UTMP,[struct utmpx],[Define to the name of a structure which holds utmp data.])

+else

+    AC_DEFINE(UTMP,[struct utmp],[Define to the name of a structure which holds utmp data.])

+fi

+

+dnl some systems (BSD4.4-like) require time.h to be included before utmp.h :/

+AC_MSG_CHECKING(for ut_host field in the utmp structure)