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authorDeeJayLSP <djlsplays@gmail.com>2022-11-30 11:16:31 -0300
committerRémi Verschelde <rverschelde@gmail.com>2023-01-07 13:03:06 +0100
commit93409b8e64a9bc3c271ab4a7489b59a43bc0d048 (patch)
treebdc406e5e4861818ec5b4b9a36c4fa1b9850b3f6 /thirdparty/zlib/crc32.c
parent163f6f5fe87d11645e94cd49f41226ab03063e53 (diff)
downloadredot-engine-93409b8e64a9bc3c271ab4a7489b59a43bc0d048.tar.gz
zlib/minizip: Update to version 1.2.13, remove zlib from freetype
Security update, fixes CVE-2022-37434 in zlib. Only applications exposing/using `inflateGetHeader()` seem to be affected, which is not our case, so this is not critical for Godot. Remove duplicated copy of zlib in freetype sources to force using the updated version in `thirdparty/zlib/`. Co-authored-by: Rémi Verschelde <rverschelde@gmail.com>
Diffstat (limited to 'thirdparty/zlib/crc32.c')
-rw-r--r--thirdparty/zlib/crc32.c33
1 files changed, 21 insertions, 12 deletions
diff --git a/thirdparty/zlib/crc32.c b/thirdparty/zlib/crc32.c
index a1bdce5c23..f8357b083f 100644
--- a/thirdparty/zlib/crc32.c
+++ b/thirdparty/zlib/crc32.c
@@ -98,13 +98,22 @@
# endif
#endif
+/* If available, use the ARM processor CRC32 instruction. */
+#if defined(__aarch64__) && defined(__ARM_FEATURE_CRC32) && W == 8
+# define ARMCRC32
+#endif
+
/* Local functions. */
local z_crc_t multmodp OF((z_crc_t a, z_crc_t b));
local z_crc_t x2nmodp OF((z_off64_t n, unsigned k));
-/* If available, use the ARM processor CRC32 instruction. */
-#if defined(__aarch64__) && defined(__ARM_FEATURE_CRC32) && W == 8
-# define ARMCRC32
+#if defined(W) && (!defined(ARMCRC32) || defined(DYNAMIC_CRC_TABLE))
+ local z_word_t byte_swap OF((z_word_t word));
+#endif
+
+#if defined(W) && !defined(ARMCRC32)
+ local z_crc_t crc_word OF((z_word_t data));
+ local z_word_t crc_word_big OF((z_word_t data));
#endif
#if defined(W) && (!defined(ARMCRC32) || defined(DYNAMIC_CRC_TABLE))
@@ -630,7 +639,7 @@ 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) {
@@ -645,8 +654,8 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
len &= 7;
/* Do three interleaved CRCs to realize the throughput of one crc32x
- instruction per cycle. Each CRC is calcuated on Z_BATCH words. The three
- CRCs are combined into a single CRC after each set of batches. */
+ instruction per cycle. Each CRC is calculated on Z_BATCH words. The
+ three CRCs are combined into a single CRC after each set of batches. */
while (num >= 3 * Z_BATCH) {
crc1 = 0;
crc2 = 0;
@@ -749,7 +758,7 @@ 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 +1086,7 @@ 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);
}
/* ========================================================================= */
@@ -1086,7 +1095,7 @@ uLong ZEXPORT crc32_combine(crc1, crc2, len2)
uLong crc2;
z_off_t len2;
{
- return crc32_combine64(crc1, crc2, len2);
+ return crc32_combine64(crc1, crc2, (z_off64_t)len2);
}
/* ========================================================================= */
@@ -1103,14 +1112,14 @@ uLong ZEXPORT crc32_combine_gen64(len2)
uLong ZEXPORT crc32_combine_gen(len2)
z_off_t len2;
{
- return crc32_combine_gen64(len2);
+ return crc32_combine_gen64((z_off64_t)len2);
}
/* ========================================================================= */
-uLong crc32_combine_op(crc1, crc2, op)
+uLong ZEXPORT crc32_combine_op(crc1, crc2, op)
uLong crc1;
uLong crc2;
uLong op;
{
- return multmodp(op, crc1) ^ crc2;
+ return multmodp(op, crc1) ^ (crc2 & 0xffffffff);
}