From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Sun, 6 Dec 2020 12:10:34 +0000 (+0900)
Subject: sd-device: keep escaped strings in DEVLINK= property
X-Git-Tag: v248-rc1~558^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=31063db0b4842a452c6eadde5b969aaee2a0516a;p=thirdparty%2Fsystemd.git

sd-device: keep escaped strings in DEVLINK= property

This fixes a bug introduced by 87a4d416e5126b6fb2528ae192a6a6a8033539ce.

Fixes #17772.
---

diff --git a/src/libsystemd/sd-device/device-private.c b/src/libsystemd/sd-device/device-private.c
index 2801ebdcbe3..9070dfbdd11 100644
--- a/src/libsystemd/sd-device/device-private.c
+++ b/src/libsystemd/sd-device/device-private.c
@@ -319,7 +319,10 @@ static int device_amend(sd_device *device, const char *key, const char *value) {
                 for (const char *p = value;;) {
                         _cleanup_free_ char *word = NULL;
 
-                        r = extract_first_word(&p, &word, NULL, 0);
+                        /* udev rules may set escaped strings, and sd-device does not modify the input
+                         * strings. So, it is also necessary to keep the strings received through
+                         * sd-device-monitor. */
+                        r = extract_first_word(&p, &word, NULL, EXTRACT_RETAIN_ESCAPE);
                         if (r < 0)
                                 return r;
                         if (r == 0)