systemd/SOURCES/0196-basic-unit-file-reverse-negative-conditional.patch

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2022-11-15 06:58:41 +00:00
From 4ac4cc6e4b17dea8f071e260cd8d3eae68ba883d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Thu, 17 Mar 2022 11:46:03 +0100
Subject: [PATCH] basic/unit-file: reverse negative conditional
Having the reverse condition first makes changes that I want to do
later awkward, so reverse it as a separate step first.
(cherry picked from commit bd177c62158df97785af0d360c4fc9c266311d88)
Related: #2082131
---
src/basic/unit-file.c | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/src/basic/unit-file.c b/src/basic/unit-file.c
index 6cf66b45cf..2474648ceb 100644
--- a/src/basic/unit-file.c
+++ b/src/basic/unit-file.c
@@ -326,27 +326,16 @@ int unit_file_resolve_symlink(
assert(path_is_absolute(simplified));
- /* Check if the symlink goes outside of our search path.
- * If yes, it's a linked unit file or mask, and we don't care about the target name
+ /* Check if the symlink remain inside of of our search path.
+ * If yes, it is an alias. Verify that it is valid.
+ *
+ * If no, then this is a linked unit file or mask, and we don't care about the target name
* when loading units, and we return the link *source* (resolve_destination_target == false);
* When this is called for installation purposes, we want the final destination,
* so we return the *target*.
- *
- * Otherwise, let's verify that it's a good alias.
*/
const char *tail = path_startswith_strv(simplified, search_path);
- if (!tail) {
- log_debug("Linked unit file: %s/%s → %s", dir, filename, simplified);
-
- if (resolve_destination_target)
- dst = TAKE_PTR(simplified);
- else {
- dst = path_join(dir, filename);
- if (!dst)
- return log_oom();
- }
-
- } else {
+ if (tail) { /* An alias */
_cleanup_free_ char *target_name = NULL;
r = path_extract_filename(simplified, &target_name);
@@ -361,6 +350,17 @@ int unit_file_resolve_symlink(
dir, filename, simplified);
dst = resolve_destination_target ? TAKE_PTR(simplified) : TAKE_PTR(target_name);
+
+ } else {
+ log_debug("Linked unit file: %s/%s → %s", dir, filename, simplified);
+
+ if (resolve_destination_target)
+ dst = TAKE_PTR(simplified);
+ else {
+ dst = path_join(dir, filename);
+ if (!dst)
+ return log_oom();
+ }
}
*ret_destination = TAKE_PTR(dst);