pack.c: `count` should not be negative for directives `xX@`.

1ed01a8d · Yukihiro "Matz" Matsumoto · bf2b06ce · 1ed01a8d
Unverified Commit 1ed01a8d authored Jun 13, 2021 by Yukihiro "Matz" Matsumoto
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mrbgems/mruby-pack/src/pack.c mrbgems/mruby-pack/src/pack.c +4 -1

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--- a/mrbgems/mruby-pack/src/pack.c
+++ b/mrbgems/mruby-pack/src/pack.c
@@ -1251,7 +1251,10 @@ alias:
      tmpl->idx = e - tptr;
      continue;
    } else if (ch == '*')  {
-      count = -1;
+      if (type == PACK_TYPE_NONE)
+        count = 0;
+      else
+        count = -1;
    } else if (ch == '_' || ch == '!' || ch == '<' || ch == '>') {
      if (strchr("sSiIlLqQ", (int)t) == NULL) {
        mrb_raisef(mrb, E_ARGUMENT_ERROR, "'%c' allowed only after types sSiIlLqQ", ch);