systemd/0009-nspawn-properly-format-container_uuid-in-UUID-format.patch

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From 9f24adc288de142d6606fde3c5a5971613f3b6b9 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 16 May 2014 19:37:19 +0200
Subject: [PATCH] nspawn: properly format container_uuid in UUID format
http://lists.freedesktop.org/archives/systemd-devel/2014-April/018971.html
---
src/nspawn/nspawn.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)
diff --git src/nspawn/nspawn.c src/nspawn/nspawn.c
index 0bd52da..6be4dca 100644
--- src/nspawn/nspawn.c
+++ src/nspawn/nspawn.c
@@ -769,6 +769,15 @@ static int setup_resolv_conf(const char *dest) {
return 0;
}
+static char* id128_format_as_uuid(sd_id128_t id, char s[37]) {
+
+ snprintf(s, 37,
+ "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ SD_ID128_FORMAT_VAL(id));
+
+ return s;
+}
+
static int setup_boot_id(const char *dest) {
_cleanup_free_ char *from = NULL, *to = NULL;
sd_id128_t rnd = {};
@@ -794,10 +803,7 @@ static int setup_boot_id(const char *dest) {
return r;
}
- snprintf(as_uuid, sizeof(as_uuid),
- "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
- SD_ID128_FORMAT_VAL(rnd));
- char_array_0(as_uuid);
+ id128_format_as_uuid(rnd, as_uuid);
r = write_string_file(from, as_uuid);
if (r < 0) {
@@ -2954,7 +2960,9 @@ int main(int argc, char *argv[]) {
}
if (!sd_id128_equal(arg_uuid, SD_ID128_NULL)) {
- if (asprintf((char**)(envp + n_env++), "container_uuid=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(arg_uuid)) < 0) {
+ char as_uuid[37];
+
+ if (asprintf((char**)(envp + n_env++), "container_uuid=%s", id128_format_as_uuid(arg_uuid, as_uuid)) < 0) {
log_oom();
goto child_fail;
}
--
1.7.9.2