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-rw-r--r--src/nspawn/nspawn.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index d29866c3fe..c3698b1a40 100644
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -900,12 +900,13 @@ static int parse_argv(int argc, char *argv[]) {
case ARG_PRIVATE_USERS:
- if (streq_ptr(optarg, "no")) {
+ r = optarg ? parse_boolean(optarg) : 1;
+ if (r == 0) {
/* no: User namespacing off */
arg_userns_mode = USER_NAMESPACE_NO;
arg_uid_shift = UID_INVALID;
arg_uid_range = UINT32_C(0x10000);
- } else if (!optarg || streq(optarg, "yes")) {
+ } else if (r > 0) {
/* yes: User namespacing on, UID range is read from root dir */
arg_userns_mode = USER_NAMESPACE_FIXED;
arg_uid_shift = UID_INVALID;
@@ -916,20 +917,23 @@ static int parse_argv(int argc, char *argv[]) {
arg_uid_shift = UID_INVALID;
arg_uid_range = UINT32_C(0x10000);
} else {
+ _cleanup_free_ char *buffer = NULL;
const char *range, *shift;
/* anything else: User namespacing on, UID range is explicitly configured */
range = strchr(optarg, ':');
if (range) {
- shift = strndupa(optarg, range - optarg);
+ buffer = strndup(optarg, range - optarg);
+ if (!buffer)
+ return log_oom();
+ shift = buffer;
range++;
- r = safe_atou32(range, &arg_uid_range);
- if (r < 0)
- return log_error_errno(r, "Failed to parse UID range '%s': %m", range);
- if (arg_uid_range == 0)
- return log_error_errno(EINVAL, "UID range cannot be 0.");
+ if (safe_atou32(range, &arg_uid_range) < 0 || arg_uid_range <= 0) {
+ log_error("Failed to parse UID range: %s", range);
+ return -EINVAL;
+ }
} else
shift = optarg;