receive-pack: detect aliased updates which can occur with symrefs

diff --git a/resolve-undo.c b/resolve-undo.c
index 37d73cd949bd884397615d0f6399bd64a88e20a1..0f50ee0484776c545e632cde69b0646629a3b190 100644 (file)
--- a/resolve-undo.c
+++ b/resolve-undo.c
@@ -53,7 +53,7 @@ void resolve_undo_write(struct strbuf *sb, struct string_list *resolve_undo)
        for_each_string_list(write_one, resolve_undo, sb);
 }
 
-struct string_list *resolve_undo_read(void *data, unsigned long size)
+struct string_list *resolve_undo_read(const char *data, unsigned long size)
 {
        struct string_list *resolve_undo;
        size_t len;
@@ -93,7 +93,7 @@ struct string_list *resolve_undo_read(void *data, unsigned long size)
                                continue;
                        if (size < 20)
                                goto error;
-                       hashcpy(ui->sha1[i], data);
+                       hashcpy(ui->sha1[i], (const unsigned char *)data);
                        size -= 20;
                        data += 20;
                }