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Fix important bugs in redbean

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This change upgrades to the latest Chromium Zlib, fixes bugs in redbean,
and introduces better support for reverse proxies like Cloudflare. This
change improves the security of redbean and it's recommended that users
upgrade to the release that'll follow. This change also updates the docs
to clarify how to use the security tools redbean provides e.g. pledge(),
unveil(), and the MODE=asan builds which improve memory safety.
This commit is contained in:
Justine Tunney 2022-09-17 01:37:33 -07:00
parent 994e1f4386
commit 775944a2d0
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GPG key ID: BE714B4575D6E328
42 changed files with 8148 additions and 7298 deletions
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76
third_party/zlib/inftrees.internal.h vendored
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@ -1,29 +1,21 @@
#ifndef COSMOPOLITAN_THIRD_PARTY_ZLIB_INFTREES_H_
#define COSMOPOLITAN_THIRD_PARTY_ZLIB_INFTREES_H_
#ifndef COSMOPOLITAN_THIRD_PARTY_ZLIB_INFTREES_INTERNAL_H_
#define COSMOPOLITAN_THIRD_PARTY_ZLIB_INFTREES_INTERNAL_H_
#include "third_party/zlib/macros.internal.h"
#include "third_party/zlib/zutil.internal.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
/* clang-format off */
/* inftrees.h -- header to use inftrees.c
* Copyright (C) 1995-2005, 2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the compression library and is
subject to change. Applications should only use zlib.h.
*/
/* Maximum size of the dynamic table. The maximum number of code structures is
1444, which is the sum of 852 for literal/length codes and 592 for distance
codes. These values were found by exhaustive searches using the program
examples/enough.c found in the zlib distribtution. The arguments to that
program are the number of symbols, the initial root table size, and the
maximum bit length of a code. "enough 286 9 15" for literal/length codes
returns returns 852, and "enough 30 6 15" for distance codes returns 592.
The initial root table size (9 or 6) is found in the fifth argument of the
inflate_table() calls in inflate.c and infback.c. If the root table size is
changed, then these maximum sizes would be need to be recalculated and
updated. */
#define ENOUGH_LENS 852
#define ENOUGH_DISTS 592
#define ENOUGH (ENOUGH_LENS + ENOUGH_DISTS)
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
/* Structure for decoding tables. Each entry provides either the
information needed to do the operation requested by the code that
indexed that table entry, or it provides a pointer to another
@ -37,14 +29,11 @@ COSMOPOLITAN_C_START_
of the bit buffer. val is the actual byte to output in the case
of a literal, the base length or distance, or the offset from
the current table to the next table. Each entry is four bytes. */
struct zcode {
unsigned char op; /* operation, extra bits, table bits */
unsigned char bits; /* bits in this part of the code */
unsigned short val; /* offset in table or code value */
};
extern const struct zcode kZlibLenfix[512] hidden;
extern const struct zcode kZlibDistfix[32] hidden;
typedef struct {
unsigned char op; /* operation, extra bits, table bits */
unsigned char bits; /* bits in this part of the code */
unsigned short val; /* offset in table or code value */
} code;
/* op values as set by inflate_table():
00000000 - literal
@ -54,13 +43,32 @@ extern const struct zcode kZlibDistfix[32] hidden;
01000000 - invalid code
*/
/* Type of code to build for inflate_table() */
typedef enum { CODES, LENS, DISTS } zcodetype;
/* Maximum size of the dynamic table. The maximum number of code structures is
1924, which is the sum of 1332 for literal/length codes and 592 for distance
codes. These values were found by exhaustive searches using the program
examples/enough.c found in the zlib distribution. The arguments to that
program are the number of symbols, the initial root table size, and the
maximum bit length of a code. "enough 286 10 15" for literal/length codes
returns returns 1332, and "enough 30 9 15" for distance codes returns 592.
The initial root table size (10 or 9) is found in the fifth argument of the
inflate_table() calls in inflate.c and infback.c. If the root table size is
changed, then these maximum sizes would be need to be recalculated and
updated. */
#define ENOUGH_LENS 1332
#define ENOUGH_DISTS 592
#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS)
int inflate_table(zcodetype type, unsigned short *lens, unsigned codes,
struct zcode **table, unsigned *bits,
unsigned short *work) hidden;
/* Type of code to build for inflate_table() */
typedef enum {
CODES,
LENS,
DISTS
} codetype;
int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens,
unsigned codes, code FAR * FAR *table,
unsigned FAR *bits, unsigned short FAR *work));
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_THIRD_PARTY_ZLIB_INFTREES_H_ */
#endif /* COSMOPOLITAN_THIRD_PARTY_ZLIB_INFTREES_INTERNAL_H_ */