File 0003-unit-name-add-new-unit_name_build_from_typ... of Package systemd

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File 0003-unit-name-add-new-unit_name_build_from_type-helper.patch of Package systemd (Revision a47769d8fb254159c07462a5675e1695)

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From e2bc6ac8fe9af6dbea4f2d69e85a96deeaed8d8e Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 22 Feb 2018 18:24:57 +0100
Subject: [PATCH 03/11] unit-name: add new unit_name_build_from_type() helper

The new helper is much like unit_name_build() but expects a UnitType
value instead of a suffix.

(cherry picked from commit 72406c2f7d23455d9e25a395cbf674cc4aff2149)
---
 src/basic/unit-name.c     | 30 +++++++++++++++++++++++++-----
 src/basic/unit-name.h     |  1 +
 src/test/test-unit-name.c | 21 +++++++++++++++++++++
 3 files changed, 47 insertions(+), 5 deletions(-)

diff --git a/src/basic/unit-name.c b/src/basic/unit-name.c
index 08db164aa9..cac3f42801 100644
--- a/src/basic/unit-name.c
+++ b/src/basic/unit-name.c
@@ -255,25 +255,45 @@ int unit_name_change_suffix(const char *n, const char *suffix, char **ret) {
 }
 
 int unit_name_build(const char *prefix, const char *instance, const char *suffix, char **ret) {
-        char *s;
+        UnitType type;
 
         assert(prefix);
         assert(suffix);
         assert(ret);
 
+        if (isempty(suffix))
+                return -EINVAL;
+        if (suffix[0] != '.')
+                return -EINVAL;
+
+        type = unit_type_from_string(suffix + 1);
+        if (type < 0)
+                return -EINVAL;
+
+        return unit_name_build_from_type(prefix, instance, type, ret);
+}
+
+int unit_name_build_from_type(const char *prefix, const char *instance, UnitType type, char **ret) {
+        const char *ut;
+        char *s;
+
+        assert(prefix);
+        assert(type >= 0);
+        assert(type < _UNIT_TYPE_MAX);
+        assert(ret);
+
         if (!unit_prefix_is_valid(prefix))
                 return -EINVAL;
 
         if (instance && !unit_instance_is_valid(instance))
                 return -EINVAL;
 
-        if (!unit_suffix_is_valid(suffix))
-                return -EINVAL;
+        ut = unit_type_to_string(type);
 
         if (!instance)
-                s = strappend(prefix, suffix);
+                s = strjoin(prefix, ".", ut);
         else
-                s = strjoin(prefix, "@", instance, suffix);
+                s = strjoin(prefix, "@", instance, ".", ut);
         if (!s)
                 return -ENOMEM;
 
diff --git a/src/basic/unit-name.h b/src/basic/unit-name.h
index f40fff3fe1..1e33de30bc 100644
--- a/src/basic/unit-name.h
+++ b/src/basic/unit-name.h
@@ -278,6 +278,7 @@ UnitType unit_name_to_type(const char *n) _pure_;
 int unit_name_change_suffix(const char *n, const char *suffix, char **ret);
 
 int unit_name_build(const char *prefix, const char *instance, const char *suffix, char **ret);
+int unit_name_build_from_type(const char *prefix, const char *instance, UnitType, char **ret);
 
 char *unit_name_escape(const char *f);
 int unit_name_unescape(const char *f, char **ret);
diff --git a/src/test/test-unit-name.c b/src/test/test-unit-name.c
index fb88cef943..77f96e1a9e 100644
--- a/src/test/test-unit-name.c
+++ b/src/test/test-unit-name.c
@@ -462,6 +462,26 @@ static void test_unit_name_path_unescape(void) {
         test_unit_name_path_unescape_one("", NULL, -EINVAL);
 }
 
+static void test_unit_name_to_prefix_one(const char *input, int ret, const char *output) {
+        _cleanup_free_ char *k = NULL;
+
+        assert_se(unit_name_to_prefix(input, &k) == ret);
+        assert_se(streq_ptr(k, output));
+}
+
+static void test_unit_name_to_prefix(void) {
+        test_unit_name_to_prefix_one("foobar.service", 0, "foobar");
+        test_unit_name_to_prefix_one("", -EINVAL, NULL);
+        test_unit_name_to_prefix_one("foobar", -EINVAL, NULL);
+        test_unit_name_to_prefix_one(".service", -EINVAL, NULL);
+        test_unit_name_to_prefix_one("quux.quux", -EINVAL, NULL);
+        test_unit_name_to_prefix_one("quux.mount", 0, "quux");
+        test_unit_name_to_prefix_one("quux-quux.mount", 0, "quux-quux");
+        test_unit_name_to_prefix_one("quux@bar.mount", 0, "quux");
+        test_unit_name_to_prefix_one("quux-@.mount", 0, "quux-");
+        test_unit_name_to_prefix_one("@.mount", -EINVAL, NULL);
+}
+
 int main(int argc, char* argv[]) {
         int r, rc = 0;
 
@@ -489,6 +509,7 @@ int main(int argc, char* argv[]) {
         test_unit_name_escape();
         test_unit_name_template();
         test_unit_name_path_unescape();
+        test_unit_name_to_prefix();
 
         return rc;
 }
-- 
2.16.4

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File 0003-unit-name-add-new-unit_name_build_from_type-helper.patch of Package systemd (Revision a47769d8fb254159c07462a5675e1695)

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