mirror of
https://github.com/jart/cosmopolitan.git
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775944a2d0
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.
129 lines
3.4 KiB
C
129 lines
3.4 KiB
C
#ifndef ZUTIL_H
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#define ZUTIL_H
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#include "libc/intrin/kprintf.h"
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#include "libc/limits.h"
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#include "third_party/zlib/zlib.h"
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/* default windowBits for decompression. MAX_WBITS is for compression only */
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#ifndef DEF_WBITS
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#define DEF_WBITS MAX_WBITS
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#endif
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/* default memLevel */
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/* The three kinds of block type */
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#define STORED_BLOCK 0
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#define STATIC_TREES 1
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#define DYN_TREES 2
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/* The minimum and maximum match lengths */
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#define MIN_MATCH 3
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#define MAX_MATCH 258
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#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
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#define OS_CODE 3 /* assume Unix */
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#ifndef local
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#define local static
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#endif
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/* since "static" is used to mean two completely different things in C, we
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define "local" for the non-static meaning of "static", for readability
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(compile with -Dlocal if your debugger can't find static symbols) */
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extern const char *const z_errmsg[10] hidden; /* indexed by 2-zlib_error */
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/* (size given to avoid silly warnings with Visual C++) */
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#define ERR_MSG(err) z_errmsg[Z_NEED_DICT - (err)]
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#define ERR_RETURN(strm, err) return (strm->msg = ERR_MSG(err), (err))
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/* To be used only when the state is known to be valid */
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#ifndef F_OPEN
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#define F_OPEN(name, mode) fopen((name), (mode))
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#endif
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/* Diagnostic functions */
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#ifdef ZLIB_DEBUG
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extern int z_verbose hidden;
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extern void z_error(const char *, int, char *) hidden;
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#define Assert(cond, msg) \
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{ \
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if (!(cond)) { \
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z_error(__FILE__, __LINE__, msg); \
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} \
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}
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#define Trace(x) \
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{ \
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if (z_verbose >= 0) kprintf x; \
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}
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#define Tracev(x) \
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{ \
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if (z_verbose > 0) kprintf x; \
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}
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#define Tracevv(x) \
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{ \
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if (z_verbose > 1) kprintf x; \
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}
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#define Tracec(c, x) \
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{ \
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if (z_verbose > 0 && (c)) kprintf x; \
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}
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#define Tracecv(c, x) \
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{ \
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if (z_verbose > 1 && (c)) kprintf x; \
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}
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#else
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#define Assert(cond, msg)
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#define Trace(x)
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#define Tracev(x)
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#define Tracevv(x)
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#define Tracec(c, x)
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#define Tracecv(c, x)
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#endif
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#define ZALLOC(strm, items, size) \
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(*((strm)->zalloc))((strm)->opaque, (items), (size))
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#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
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#define TRY_FREE(s, p) \
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{ \
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if (p) ZFREE(s, p); \
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}
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/* Reverse the bytes in a 32-bit value */
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#define ZSWAP32(q) \
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((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + (((q)&0xff00) << 8) + \
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(((q)&0xff) << 24))
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typedef unsigned char uch;
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typedef uch uchf;
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typedef unsigned short ush;
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typedef ush ushf;
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typedef unsigned long ulg;
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#ifdef HAVE_HIDDEN
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#define ZLIB_INTERNAL __attribute__((__visibility__("hidden")))
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#else
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#define ZLIB_INTERNAL
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#endif
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#ifndef local
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#define local static
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#endif
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#if !defined(Z_U8) && !defined(Z_SOLO) && defined(STDC)
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#if (ULONG_MAX == 0xffffffffffffffff)
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#define Z_U8 unsigned long
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#elif (ULLONG_MAX == 0xffffffffffffffff)
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#define Z_U8 unsigned long long
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#elif (UINT_MAX == 0xffffffffffffffff)
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#define Z_U8 unsigned
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#endif
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#endif
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* ZUTIL_H */
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