From 3c23a7863c0b01273d4c36423769443ea7e4a7bb Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Fri, 5 Jun 2020 15:02:41 +0100 Subject: [PATCH 1/2] unzip: reduce file name size to 65535 to work with external minizip MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The external minizip project has changed the unzGetCurrentFileInfo() function to take a uint16_t as the filename size, instead of a uLong as in the original version in zlib. (Reported as https://github.com/nmoinvaz/minizip/issues/490 but it was 3½ years ago and might be too late to fix it now, although changing it back to a *larger* type is a lot safer than reducing the size, and perhaps they should.) This means that our 65536-byte buffer gets truncated to zero, as the compiler tells us when we build agaisnt the external minizip: domoticz/main/unzip_stream.h:140:50: warning: conversion from ‘long unsigned int’ to ‘uint16_t’ {aka ‘short unsigned int’} changes value from ‘65536’ to ‘0’ [-Woverflow] 140 | unzGetCurrentFileInfo(handler_, &info, path, sizeof(path), NULL, 0, NULL, 0); | ^~~~~~~~~~~~ Reduce the buffer size to 65535 bytes instead. --- main/unzip_stream.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/main/unzip_stream.h +++ b/main/unzip_stream.h @@ -143,7 +143,7 @@ namespace clx { basic_unzip_stream& open(handler_type h) { handler_ = h; if (handler_) { - char path[65536]; + char path[65535]; unz_file_info info; unzGetCurrentFileInfo(handler_, &info, path, sizeof(path), NULL, 0, NULL, 0); path_ = path;