Handle potential NULL pointer with DHCP options

diff --git a/gdhcp/client.c b/gdhcp/client.c
index 430ecc8..1919af7 100644 (file)
--- a/gdhcp/client.c
+++ b/gdhcp/client.c
@@ -913,6 +913,9 @@ static GList *get_option_value_list(char *value)
        char *pos = value;
        GList *list = NULL;
 
+       if (pos == NULL)
+               return NULL;
+
        while ((pos = strchr(pos, ' ')) != NULL) {
                *pos = '\0';