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-rw-r--r--src/hostname/hostnamed.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/src/hostname/hostnamed.c b/src/hostname/hostnamed.c
index 7ea891c681..979dcfdc7f 100644
--- a/src/hostname/hostnamed.c
+++ b/src/hostname/hostnamed.c
@@ -159,6 +159,19 @@ static bool valid_chassis(const char *chassis) {
chassis);
}
+static bool pretty_string_is_safe(const char *p) {
+ const char *t;
+
+ assert(p);
+
+ for (t = p; *t; t++) {
+ if (*t >= '\0' && *t < ' ')
+ return false;
+ }
+
+ return true;
+}
+
static const char* fallback_chassis(void) {
int r;
char *type;
@@ -553,7 +566,7 @@ static DBusHandlerResult hostname_message_handler(
* safe than sorry */
if (k == PROP_ICON_NAME && !filename_is_safe(name))
return bus_send_error_reply(connection, message, NULL, -EINVAL);
- if (k == PROP_PRETTY_HOSTNAME && !string_is_safe(name))
+ if (k == PROP_PRETTY_HOSTNAME && !pretty_string_is_safe(name))
return bus_send_error_reply(connection, message, NULL, -EINVAL);
if (k == PROP_CHASSIS && !valid_chassis(name))
return bus_send_error_reply(connection, message, NULL, -EINVAL);