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-rw-r--r--src/shared/install-printf.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/src/shared/install-printf.c b/src/shared/install-printf.c
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+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Zbigniew Jędrzejewski-Szmek
+
+ systemd 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.
+
+ systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include "specifier.h"
+#include "unit-name.h"
+#include "install-printf.h"
+
+static char *specifier_prefix_and_instance(char specifier, void *data, void *userdata) {
+ InstallInfo *i = userdata;
+ assert(i);
+
+ return unit_name_to_prefix_and_instance(i->name);
+}
+
+static char *specifier_prefix(char specifier, void *data, void *userdata) {
+ InstallInfo *i = userdata;
+ assert(i);
+
+ return unit_name_to_prefix(i->name);
+}
+
+static char *specifier_instance(char specifier, void *data, void *userdata) {
+ InstallInfo *i = userdata;
+ char *instance;
+ int r;
+
+ assert(i);
+
+ r = unit_name_to_instance(i->name, &instance);
+ if (r < 0)
+ return NULL;
+ if (instance != NULL)
+ return instance;
+ else
+ return strdup("");
+}
+
+char *install_full_printf(InstallInfo *i, const char *format) {
+
+ /* This is similar to unit_full_printf() but does not support
+ * anything path-related.
+ *
+ * %n: the full id of the unit (foo@bar.waldo)
+ * %N: the id of the unit without the suffix (foo@bar)
+ * %p: the prefix (foo)
+ * %i: the instance (bar)
+
+ * %U the UID of the configured user or running user
+ * %u the username of the configured user or running user
+ * %m the machine ID of the running system
+ * %H the host name of the running system
+ * %b the boot ID of the running system
+ */
+
+ const Specifier table[] = {
+ { 'n', specifier_string, i->name },
+ { 'N', specifier_prefix_and_instance, NULL },
+ { 'p', specifier_prefix, NULL },
+ { 'i', specifier_instance, NULL },
+
+// { 'U', specifier_user_name, NULL },
+// { 'u', specifier_user_name, NULL },
+
+ { 'm', specifier_machine_id, NULL },
+ { 'H', specifier_host_name, NULL },
+ { 'b', specifier_boot_id, NULL },
+ { 0, NULL, NULL }
+ };
+
+ assert(i);
+ assert(format);
+
+ return specifier_printf(format, table, i);
+}