list-objects: pass callback data to show_objects()

diff --git a/rerere.c b/rerere.c
index e3407cf33417385c89aa9a1a9a9d5ad2809f57fb..dcb525a4d03faeba53d108d2e175a6d04f99d160 100644 (file)
--- a/rerere.c
+++ b/rerere.c
@@ -47,8 +47,14 @@ static void read_rr(struct string_list *rr)
                name = xstrdup(buf);
                if (fgetc(in) != '\t')
                        die("corrupt MERGE_RR");
-               for (i = 0; i < sizeof(buf) && (buf[i] = fgetc(in)); i++)
-                       ; /* do nothing */
+               for (i = 0; i < sizeof(buf); i++) {
+                       int c = fgetc(in);
+                       if (c < 0)
+                               die("corrupt MERGE_RR");
+                       buf[i] = c;
+                       if (c == 0)
+                                break;
+               }
                if (i == sizeof(buf))
                        die("filename too long");
                string_list_insert(rr, buf)->util = name;