wget: add TODO

[oweals/busybox.git] / networking / ifupdown.c

diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index ede2f8997a46980e09a8959ab92dec3cac79500b..f72e653b310b49ac581c4739d69c491cfab05167 100644 (file)
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -598,6 +598,9 @@ static const struct address_family_t *get_address_family(const struct address_fa
 {
        int i;
 
+       if (!name)
+               return NULL;
+
        for (i = 0; af[i]; i++) {
                if (strcmp(af[i]->name, name) == 0) {
                        return af[i];
@@ -610,6 +613,9 @@ static const struct method_t *get_method(const struct address_family_t *af, char
 {
        int i;
 
+       if (!name)
+               return NULL;
+
        for (i = 0; i < af->n_methods; i++) {
                if (strcmp(af->method[i].name, name) == 0) {
                        return &af->method[i];
@@ -620,6 +626,9 @@ static const struct method_t *get_method(const struct address_family_t *af, char
 
 static const llist_t *find_list_string(const llist_t *list, const char *string)
 {
+       if (string == NULL)
+               return NULL;
+
        while (list) {
                if (strcmp(list->data, string) == 0) {
                        return list;