Adding upstream version 1.19.8.upstream/1.19.8upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 256 insertions, 0 deletions

diff --git a/src/trigcmd.c b/src/trigcmd.c
new file mode 100644
index 0000000..af8119c
--- /dev/null
+++ b/src/trigcmd.c
@@ -0,0 +1,256 @@
+/*
+ * dpkg-trigger - trigger management utility
+ *
+ * Copyright © 2007 Canonical Ltd.
+ * Written by Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2008-2014 Guillem Jover <guillem@debian.org>
+ *
+ * This 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This 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 <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+
+#include <fcntl.h>
+#if HAVE_LOCALE_H
+#include <locale.h>
+#endif
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/options.h>
+#include <dpkg/trigdeferred.h>
+#include <dpkg/triglib.h>
+#include <dpkg/pkg-spec.h>
+
+static const char printforhelp[] = N_(
+"Type dpkg-trigger --help for help about this utility.");
+
+static void DPKG_ATTR_NORET
+printversion(const struct cmdinfo *ci, const char *value)
+{
+	printf(_("Debian %s package trigger utility version %s.\n"),
+	       dpkg_get_progname(), PACKAGE_RELEASE);
+
+	printf(_(
+"This is free software; see the GNU General Public License version 2 or\n"
+"later for copying conditions. There is NO warranty.\n"));
+
+	m_output(stdout, _("<standard output>"));
+
+	exit(0);
+}
+
+static void DPKG_ATTR_NORET
+usage(const struct cmdinfo *ci, const char *value)
+{
+	printf(_(
+"Usage: %s [<options> ...] <trigger-name>\n"
+"       %s [<options> ...] <command>\n"
+"\n"), dpkg_get_progname(), dpkg_get_progname());
+
+	printf(_(
+"Commands:\n"
+"  --check-supported                Check if the running dpkg supports triggers.\n"
+"\n"));
+
+	printf(_(
+"  -?, --help                       Show this help message.\n"
+"      --version                    Show the version.\n"
+"\n"));
+
+	printf(_(
+"Options:\n"
+"  --admindir=<directory>           Use <directory> instead of %s.\n"
+"  --by-package=<package>           Override trigger awaiter (normally set\n"
+"                                     by dpkg).\n"
+"  --await                          Package needs to await the processing.\n"
+"  --no-await                       No package needs to await the processing.\n"
+"  --no-act                         Just test - don't actually change anything.\n"
+"\n"), ADMINDIR);
+
+	m_output(stdout, _("<standard output>"));
+
+	exit(0);
+}
+
+static const char *admindir;
+static int f_noact, f_check;
+static int f_await = 1;
+
+static const char *bypackage, *activate;
+static bool done_trig, ctrig;
+
+static void
+yespackage(const char *awname)
+{
+	trigdef_update_printf(" %s", awname);
+}
+
+static const char *
+parse_awaiter_package(void)
+{
+	struct dpkg_error err = DPKG_ERROR_INIT;
+	struct pkginfo *pkg;
+
+	if (!f_await)
+		bypackage = "-";
+
+	if (bypackage == NULL) {
+		const char *pkgname, *archname;
+
+		pkgname = getenv("DPKG_MAINTSCRIPT_PACKAGE");
+		archname = getenv("DPKG_MAINTSCRIPT_ARCH");
+		if (pkgname == NULL || archname == NULL)
+			badusage(_("must be called from a maintainer script"
+			           " (or with a --by-package option)"));
+
+		pkg = pkg_spec_find_pkg(pkgname, archname, &err);
+	} else if (strcmp(bypackage, "-") == 0) {
+		pkg = NULL;
+	} else {
+		pkg = pkg_spec_parse_pkg(bypackage, &err);
+	}
+
+	/* Normalize the bypackage name if there was no error. */
+	if (pkg)
+		bypackage = pkg_name(pkg, pnaw_nonambig);
+
+	return err.str;
+}
+
+static void
+tdm_add_trig_begin(const char *trig)
+{
+	ctrig = strcmp(trig, activate) == 0;
+	trigdef_update_printf("%s", trig);
+	if (!ctrig || done_trig)
+		return;
+	yespackage(bypackage);
+	done_trig = true;
+}
+
+static void
+tdm_add_package(const char *awname)
+{
+	if (ctrig && strcmp(awname, bypackage) == 0)
+		return;
+	yespackage(awname);
+}
+
+static void
+tdm_add_trig_end(void)
+{
+	trigdef_update_printf("\n");
+}
+
+static const struct trigdefmeths tdm_add = {
+	.trig_begin = tdm_add_trig_begin,
+	.package = tdm_add_package,
+	.trig_end = tdm_add_trig_end,
+};
+
+static int
+do_check(void)
+{
+	enum trigdef_update_status uf;
+
+	uf = trigdef_update_start(TDUF_NO_LOCK_OK);
+	switch (uf) {
+	case TDUS_ERROR_NO_DIR:
+		notice(_("triggers data directory not yet created"));
+		return 1;
+	case TDUS_ERROR_NO_DEFERRED:
+		notice(_("trigger records not yet in existence"));
+		return 1;
+	case TDUS_OK:
+	case TDUS_ERROR_EMPTY_DEFERRED:
+		return 0;
+	default:
+		internerr("unknown trigdef_update_start return value '%d'", uf);
+	}
+}
+
+static const struct cmdinfo cmdinfos[] = {
+	{ "admindir",        0,   1, NULL,     &admindir },
+	{ "by-package",      'f', 1, NULL,     &bypackage },
+	{ "await",           0,   0, &f_await, NULL,       NULL, 1 },
+	{ "no-await",        0,   0, &f_await, NULL,       NULL, 0 },
+	{ "no-act",          0,   0, &f_noact, NULL,       NULL, 1 },
+	{ "check-supported", 0,   0, &f_check, NULL,       NULL, 1 },
+	{ "help",            '?', 0, NULL,     NULL,       usage   },
+	{ "version",         0,   0, NULL,     NULL,       printversion  },
+	{  NULL  }
+};
+
+int
+main(int argc, const char *const *argv)
+{
+	const char *badname;
+	enum trigdef_update_flags tduf;
+	enum trigdef_update_status tdus;
+
+	dpkg_locales_init(PACKAGE);
+	dpkg_program_init("dpkg-trigger");
+	dpkg_options_parse(&argv, cmdinfos, printforhelp);
+
+	admindir = dpkg_db_set_dir(admindir);
+
+	if (f_check) {
+		if (*argv)
+			badusage(_("--%s takes no arguments"),
+			         "check-supported");
+		return do_check();
+	}
+
+	if (!*argv || argv[1])
+		badusage(_("takes one argument, the trigger name"));
+
+	badname = parse_awaiter_package();
+	if (badname)
+		badusage(_("illegal awaited package name '%.250s': %.250s"),
+		         bypackage, badname);
+
+	fsys_hash_init();
+
+	activate = argv[0];
+	badname = trig_name_is_illegal(activate);
+	if (badname)
+		badusage(_("invalid trigger name '%.250s': %.250s"),
+		         activate, badname);
+
+	trigdef_set_methods(&tdm_add);
+
+	tduf = TDUF_NO_LOCK_OK;
+	if (!f_noact)
+		tduf |= TDUF_WRITE | TDUF_WRITE_IF_EMPTY;
+	tdus = trigdef_update_start(tduf);
+	if (tdus >= 0) {
+		trigdef_parse();
+		if (!done_trig)
+			trigdef_update_printf("%s %s\n", activate, bypackage);
+		trigdef_process_done();
+	}
+
+	dpkg_program_done();
+
+	return 0;
+}