system/zlib: bump { 1.2.12 --> 1.2.13 }. fixes #820.

1 files changed, 0 insertions, 51 deletions

diff --git a/system/zlib/keep-legacy-crc-behavior.patch b/system/zlib/keep-legacy-crc-behavior.patch
deleted file mode 100644
index 85a6a7e3a..000000000
--- a/system/zlib/keep-legacy-crc-behavior.patch
+++ /dev/null
@@ -1,51 +0,0 @@
-From ec3df00224d4b396e2ac6586ab5d25f673caa4c2 Mon Sep 17 00:00:00 2001
-From: Mark Adler <madler@alumni.caltech.edu>
-Date: Wed, 30 Mar 2022 11:14:53 -0700
-Subject: [PATCH] Correct incorrect inputs provided to the CRC functions.
-
-The previous releases of zlib were not sensitive to incorrect CRC
-inputs with bits set above the low 32. This commit restores that
-behavior, so that applications with such bugs will continue to
-operate as before.
----
- crc32.c | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
-diff --git a/crc32.c b/crc32.c
-index a1bdce5c2..451887bc7 100644
---- a/crc32.c
-+++ b/crc32.c
-@@ -630,7 +630,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
- #endif /* DYNAMIC_CRC_TABLE */
- 
-     /* Pre-condition the CRC */
--    crc ^= 0xffffffff;
-+    crc = (~crc) & 0xffffffff;
- 
-     /* Compute the CRC up to a word boundary. */
-     while (len && ((z_size_t)buf & 7) != 0) {
-@@ -749,7 +749,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
- #endif /* DYNAMIC_CRC_TABLE */
- 
-     /* Pre-condition the CRC */
--    crc ^= 0xffffffff;
-+    crc = (~crc) & 0xffffffff;
- 
- #ifdef W
- 
-@@ -1077,7 +1077,7 @@ uLong ZEXPORT crc32_combine64(crc1, crc2, len2)
- #ifdef DYNAMIC_CRC_TABLE
-     once(&made, make_crc_table);
- #endif /* DYNAMIC_CRC_TABLE */
--    return multmodp(x2nmodp(len2, 3), crc1) ^ crc2;
-+    return multmodp(x2nmodp(len2, 3), crc1) ^ (crc2 & 0xffffffff);
- }
- 
- /* ========================================================================= */
-@@ -1112,5 +1112,5 @@ uLong crc32_combine_op(crc1, crc2, op)
-     uLong crc2;
-     uLong op;
- {
--    return multmodp(op, crc1) ^ crc2;
-+    return multmodp(op, crc1) ^ (crc2 & 0xffffffff);
- }