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-rw-r--r--src/udev/udev-rules.c33
1 files changed, 23 insertions, 10 deletions
diff --git a/src/udev/udev-rules.c b/src/udev/udev-rules.c
index b3b42fe989..ee35f464e8 100644
--- a/src/udev/udev-rules.c
+++ b/src/udev/udev-rules.c
@@ -2471,19 +2471,32 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event
case TK_A_ENV: {
const char *name = &rules->buf[cur->key.attr_off];
char *value = &rules->buf[cur->key.value_off];
+ char value_new[UTIL_NAME_SIZE];
+ const char *value_old = NULL;
+ struct udev_list_entry *entry;
- if (value[0] != '\0') {
- char temp_value[UTIL_NAME_SIZE];
- struct udev_list_entry *entry;
-
- udev_event_apply_format(event, value, temp_value, sizeof(temp_value));
- entry = udev_device_add_property(event->dev, name, temp_value);
- /* store in db, skip private keys */
- if (name[0] != '.')
- udev_list_entry_set_num(entry, true);
- } else {
+ if (value[0] == '\0') {
+ if (cur->key.op == OP_ADD)
+ break;
udev_device_add_property(event->dev, name, NULL);
+ break;
}
+
+ if (cur->key.op == OP_ADD)
+ value_old = udev_device_get_property_value(event->dev, name);
+ if (value_old) {
+ char temp[UTIL_NAME_SIZE];
+
+ /* append value separated by space */
+ udev_event_apply_format(event, value, temp, sizeof(temp));
+ util_strscpyl(value_new, sizeof(value_new), value_old, " ", temp, NULL);
+ } else
+ udev_event_apply_format(event, value, value_new, sizeof(value_new));
+
+ entry = udev_device_add_property(event->dev, name, value_new);
+ /* store in db, skip private keys */
+ if (name[0] != '.')
+ udev_list_entry_set_num(entry, true);
break;
}
case TK_A_TAG: {