remote: make copy_ref() perform a deep copy

diff --git a/remote.c b/remote.c
index aed760ee3aca4df344646db698b5bec5ec83ef8b..22203ea8e2d00f6f3cfe3c883256685df0a01359 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -779,10 +779,18 @@ struct ref *alloc_ref(const char *name)
 
 static struct ref *copy_ref(const struct ref *ref)
 {
-       struct ref *ret = xmalloc(sizeof(struct ref) + strlen(ref->name) + 1);
-       memcpy(ret, ref, sizeof(struct ref) + strlen(ref->name) + 1);
-       ret->next = NULL;
-       return ret;
+       struct ref *cpy;
+       size_t len;
+       if (!ref)
+               return NULL;
+       len = strlen(ref->name);
+       cpy = xmalloc(sizeof(struct ref) + len + 1);
+       memcpy(cpy, ref, sizeof(struct ref) + len + 1);
+       cpy->next = NULL;
+       cpy->symref = ref->symref ? xstrdup(ref->symref) : NULL;
+       cpy->remote_status = ref->remote_status ? xstrdup(ref->remote_status) : NULL;
+       cpy->peer_ref = copy_ref(ref->peer_ref);
+       return cpy;
 }
 
 struct ref *copy_ref_list(const struct ref *ref)
@@ -801,6 +809,7 @@ static void free_ref(struct ref *ref)
 {
        if (!ref)
                return;
+       free_ref(ref->peer_ref);
        free(ref->remote_status);
        free(ref->symref);
        free(ref);
@@ -811,7 +820,6 @@ void free_refs(struct ref *ref)
        struct ref *next;
        while (ref) {
                next = ref->next;
-               free(ref->peer_ref);
                free_ref(ref);
                ref = next;
        }