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Diffstat (limited to '')
| -rw-r--r-- | src/server.cc | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/server.cc b/src/server.cc new file mode 100644 index 0000000..48c09f3 --- /dev/null +++ b/src/server.cc @@ -0,0 +1,195 @@ +/* + * Copyright © 2001, 2002 Havoc Pennington + * Copyright © 2002 Red Hat, Inc. + * Copyright © 2002 Sun Microsystems + * Copyright © 2003 Mariano Suarez-Alvarez + * Copyright © 2008, 2010, 2011 Christian Persch + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <config.h> + +#include <errno.h> +#include <locale.h> +#include <pthread.h> +#include <stdlib.h> +#include <time.h> +#include <unistd.h> +#include <sys/resource.h> +#include <sys/types.h> + +#include <glib.h> +#include <glib/gi18n.h> +#include <glib/gstdio.h> +#include <gio/gio.h> + +#include "terminal-app.hh" +#include "terminal-debug.hh" +#include "terminal-gdbus.hh" +#include "terminal-i18n.hh" +#include "terminal-defines.hh" +#include "terminal-libgsystem.hh" + +static char *app_id = nullptr; + +#define INACTIVITY_TIMEOUT (100 /* ms */) + +static gboolean +option_app_id_cb (const gchar *option_name, + const gchar *value, + gpointer data, + GError **error) +{ + if (!g_application_id_is_valid (value) || + !g_dbus_is_name (value)) { + g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE, + "\"%s\" is not a valid application ID", value); + return FALSE; + } + + g_free (app_id); + app_id = g_strdup (value); + + return TRUE; +} + +static const GOptionEntry options[] = { + { "app-id", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (void*)option_app_id_cb, "Application ID", "ID" }, + { nullptr } +}; + +/* We use up to 8 FDs per terminal, so let's bump the limit way up. + * However we need to restore the original limit for the child processes. + */ + +static struct rlimit sv_rlimit_nofile; + +static void +atfork_child_restore_rlimit_nofile (void) +{ + if (setrlimit (RLIMIT_NOFILE, &sv_rlimit_nofile) < 0) + _exit (127); +} + +static gboolean +increase_rlimit_nofile (void) +{ + struct rlimit l; + + if (getrlimit (RLIMIT_NOFILE, &sv_rlimit_nofile) < 0) + return FALSE; + + if (pthread_atfork (nullptr, nullptr, atfork_child_restore_rlimit_nofile) != 0) + return FALSE; + + l.rlim_cur = l.rlim_max = sv_rlimit_nofile.rlim_max; + if (setrlimit (RLIMIT_NOFILE, &l) < 0) + return FALSE; + + return TRUE; +} + +static int +init_server (int argc, + char *argv[], + GApplication **application) +{ + if (G_UNLIKELY ((getuid () != geteuid () || + getgid () != getegid ()) && + geteuid () == 0 && + getegid () == 0)) { + g_printerr ("Wrong euid/egid, exiting.\n"); + return _EXIT_FAILURE_WRONG_ID; + } + + if (setlocale (LC_ALL, "") == nullptr) { + g_printerr ("Locale not supported.\n"); + return _EXIT_FAILURE_UNSUPPORTED_LOCALE; + } + + terminal_i18n_init (TRUE); + + g_unsetenv ("CHARSET"); + const char *charset; + if (!g_get_charset (&charset)) { + g_printerr ("Non UTF-8 locale (%s) is not supported!\n", charset); + return _EXIT_FAILURE_NO_UTF8; + } + + /* Sanitise environment */ + g_unsetenv ("DBUS_STARTER_BUS_TYPE"); + + /* Not interested in silly debug spew polluting the journal, bug #749195 */ + if (g_getenv ("G_ENABLE_DIAGNOSTIC") == nullptr) + g_setenv ("G_ENABLE_DIAGNOSTIC", "0", TRUE); + + _terminal_debug_init (); + + /* Change directory to $HOME so we don't prevent unmounting, e.g. if the + * factory is started by nautilus-open-terminal. See bug #565328. + * On failure back to /. + */ + const char *home_dir = g_get_home_dir (); + if (home_dir == nullptr || chdir (home_dir) < 0) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wunused-result" + chdir ("/"); +#pragma GCC diagnostic pop + + g_set_prgname ("gnome-terminal-server"); + g_set_application_name (_("Terminal")); + + GError *error = nullptr; + if (!gtk_init_with_args (&argc, &argv, nullptr, options, nullptr, &error)) { + if (error != nullptr) { + g_printerr ("Failed to parse arguments: %s\n", error->message); + g_error_free (error); + } + + return _EXIT_FAILURE_GTK_INIT; + } + + if (!increase_rlimit_nofile ()) { + auto const errsv = errno; + g_printerr ("Failed to increase RLIMIT_NOFILE: %s\n", g_strerror(errsv)); + } + + /* Now we can create the app */ + auto const app = terminal_app_new (app_id, G_APPLICATION_IS_SERVICE, nullptr); + g_free (app_id); + app_id = nullptr; + + /* We stay around a bit after the last window closed */ + g_application_set_inactivity_timeout (app, INACTIVITY_TIMEOUT); + + *application = app; + return 0; +} + +int +main (int argc, + char *argv[]) +{ + gs_unref_object GApplication *app = nullptr; + int r = init_server (argc, argv, &app); + if (r != 0) + return r; + + /* Note that this flushes the D-Bus connection just before quitting, + * thus ensuring that all pending signal emissions (e.g. child-exited) + * are delivered. + */ + return g_application_run (app, 0, nullptr); +} |