Fix bug #43314

Assume worst case all-encoded case here

diff --git a/ext/iconv/iconv.c b/ext/iconv/iconv.c
index 6bb28f26e673caeefbf47db99b37190c24c2e47b..c7277b0e9b8757b9fcd585dccc6954c34d22e8d3 100644 (file)
--- a/ext/iconv/iconv.c
+++ b/ext/iconv/iconv.c
@@ -1278,7 +1278,7 @@ static php_iconv_err_t _php_iconv_mime_encode(smart_str *pretval, const char *fn
                                                break;
                                        }
 
-                                       out_size -= ((nbytes_required - (char_cnt - 2)) + 1) / (3 - 1);
+                                       out_size -= ((nbytes_required - (char_cnt - 2)) + 1) / 3;
                                        in_left = ini_in_left;
                                        in_p = ini_in_p;
                                }