zziplib/backport-0002-CVE-2020-18442.patch
2021-06-25 09:51:47 +08:00

35 lines
1.1 KiB
Diff

From 7e786544084548da7fcfcd9090d3c4e7f5777f7e Mon Sep 17 00:00:00 2001
From: Guido Draheim <guidod@gmx.de>
Date: Mon, 4 Jan 2021 21:50:26 +0100
Subject: [PATCH 02/35] #68 return value of zzip_mem_disk_fread is signed
---
bins/unzip-mem.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/bins/unzip-mem.c b/bins/unzip-mem.c
index cc009f8..50eb5a6 100644
--- a/bins/unzip-mem.c
+++ b/bins/unzip-mem.c
@@ -81,7 +81,7 @@ static void zzip_mem_entry_pipe(ZZIP_MEM_DISK* disk,
if (file)
{
char buffer[1024]; int len;
- while ((len = zzip_mem_disk_fread (buffer, 1024, 1, file)))
+ while (0 < (len = zzip_mem_disk_fread (buffer, 1024, 1, file)))
fwrite (buffer, len, 1, out);
zzip_mem_disk_fclose (file);
@@ -115,7 +115,7 @@ static void zzip_mem_entry_test(ZZIP_MEM_DISK* disk,
{
unsigned long crc = crc32 (0L, NULL, 0);
unsigned char buffer[1024]; int len;
- while ((len = zzip_mem_disk_fread (buffer, 1024, 1, file))) {
+ while (0 < (len = zzip_mem_disk_fread (buffer, 1024, 1, file))) {
crc = crc32 (crc, buffer, len);
}
--
1.8.3.1