deps: update zlib to upstream 926ac23

deps/zlib/DIR_METADATA

@@ -0,0 +1,3 @@
+monorail: {
+  component: "Internals"
+}

deps/zlib/LICENSE

@@ -1,6 +1,6 @@
-version 1.2.11, January 15th, 2017
+version 1.2.12, March 27th, 2022
 
-Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
+Copyright (C) 1995-2022 Jean-loup Gailly and Mark Adler
 
 This software is provided 'as-is', without any express or implied
 warranty.  In no event will the authors be held liable for any damages

deps/zlib/OWNERS

@@ -1,7 +1,5 @@
 agl@chromium.org
 cavalcantii@chromium.org
 cblume@chromium.org
-mtklein@chromium.org
-scroggo@chromium.org
-
-# COMPONENT: Internals
+noel@chromium.org
+scroggo@google.com

deps/zlib/README.chromium

@@ -1,7 +1,8 @@
 Name: zlib
 Short Name: zlib
 URL: http://zlib.net/
-Version: 1.2.11
+Version: 1.2.12.1
+CPEPrefix: cpe:/a:zlib:zlib:1.2.12.1
 Security Critical: yes
 License: Custom license
 License File: LICENSE
@@ -26,3 +27,6 @@ Local Modifications:
  - Plus the changes in 'patches' folder.
  - Code in contrib/ other than contrib/minizip was added to match zlib's
    contributor layout.
+ - In sync with 1.2.12.1 develop branch.
+ - ZIP reader modified to allow for progress callbacks during extraction.
+ - ZIP reader modified to add detection of AES encrypted content.

deps/zlib/adler32.c

@@ -59,10 +59,8 @@ local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2));
 #  define MOD63(a) a %= BASE
 #endif
 
-#if defined(ADLER32_SIMD_SSSE3)
-#include "adler32_simd.h"
-#include "x86.h"
-#elif defined(ADLER32_SIMD_NEON)
+#include "cpu_features.h"
+#if defined(ADLER32_SIMD_SSSE3) || defined(ADLER32_SIMD_NEON)
 #include "adler32_simd.h"
 #endif
 
@@ -76,10 +74,10 @@ uLong ZEXPORT adler32_z(adler, buf, len)
     unsigned n;
 
 #if defined(ADLER32_SIMD_SSSE3)
-    if (x86_cpu_enable_ssse3 && buf && len >= 64)
+    if (buf != Z_NULL && len >= 64 && x86_cpu_enable_ssse3)
         return adler32_simd_(adler, buf, len);
 #elif defined(ADLER32_SIMD_NEON)
-    if (buf && len >= 64)
+    if (buf != Z_NULL && len >= 64)
         return adler32_simd_(adler, buf, len);
 #endif
 
@@ -108,7 +106,7 @@ uLong ZEXPORT adler32_z(adler, buf, len)
      */
     if (buf == Z_NULL) {
         if (!len) /* Assume user is calling adler32(0, NULL, 0); */
-            x86_check_features();
+            cpu_check_features();
         return 1L;
     }
 #else

deps/zlib/chromeconf.h

@@ -49,6 +49,9 @@
 #define crc32 Cr_z_crc32
 #define crc32_combine Cr_z_crc32_combine
 #define crc32_combine64 Cr_z_crc32_combine64
+#define crc32_combine_gen64 Cr_z_crc32_combine_gen64
+#define crc32_combine_gen Cr_z_crc32_combine_gen
+#define crc32_combine_op Cr_z_crc32_combine_op
 #define crc32_z Cr_z_crc32_z
 #define deflate Cr_z_deflate
 #define deflateBound Cr_z_deflateBound
@@ -192,4 +195,8 @@
 #define arm_check_features Cr_z_arm_check_features
 #define armv8_crc32_little Cr_z_armv8_crc32_little
 
+/* Symbols added by cpu_features.c */
+#define cpu_check_features Cr_z_cpu_check_features
+#define x86_cpu_enable_sse2 Cr_z_x86_cpu_enable_sse2
+
 #endif /* THIRD_PARTY_ZLIB_CHROMECONF_H_ */

deps/zlib/contrib/bench/check.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+#
+# Copyright 2022 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the chromium source repository LICENSE file.
+#
+# Given a zlib_bench executable and some data files, run zlib_bench --check
+# over those data files, for all zlib types (gzip|zlib|raw) and compression
+# levels 1..9 for each type. Example:
+#
+#  check.sh ./out/Release/zlib_bench [--check-binary] ~/snappy/testdata/*
+#
+# The --check-binary option modifies --check output: the compressed data is
+# also written to the program output.
+
+ZLIB_BENCH="$1" && shift
+
+CHECK_TYPE="--check"
+if [[ "${1}" == "--check-binary" ]]; then
+  CHECK_TYPE="$1" && shift  # output compressed data too
+fi
+
+DATA_FILES="$*"
+
+echo ${ZLIB_BENCH} | grep -E "/(zlib_bench|a.out)$" > /dev/null
+if [[ $? != 0 ]] || [[ -z "${DATA_FILES}" ]]; then
+  echo "usage: check.sh zlib_bench [--check-binary] files ..." >&2
+  exit 1;
+fi
+
+for type in gzip zlib raw; do
+  for level in $(seq 1 9); do
+    ${ZLIB_BENCH} $type --compression $level ${CHECK_TYPE} ${DATA_FILES}
+  done
+done