mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-06-27 06:48:31 +00:00
Make major improvements to redbean and libraries
The most exciting improvement is dynamic pages will soon be able to use the executable itself as an object store. it required a heroic technique for overcoming ETXTBSY restrictions which lets us open the executable in read/write mode, which means (1) wa can restore the APE header, and (2) we can potentially containerize redbean extension code so that modules you download for your redbean online will only impact your redbean. Here's a list of breaking changes to redbean: - Remove /tool/net/ prefix from magic ZIP paths - GetHeader() now returns NIL if header is absent Here's a list of fixes and enhancements to redbean: - Support 64-bit ZIP archives - Record User-Agent header in logs - Add twelve error handlers to accept() - Display octal st_mode on listing page - Show ZIP file comments on listing page - Restore APE MZ header on redbean startup - Track request count on redbean index page - Report server uptime on redbean index page - Don't bind server socket using SO_REUSEPORT - Fix #151 where Lua LoadAsset() could free twice - Report rusage accounting when workers exit w/ -vv - Use ZIP iattr field as text/plain vs. binary hint - Add ParseUrl() API for parsing things like a.href - Add ParseParams() API for parsing HTTP POST bodies - Add IsAcceptablePath() API for checking dots, etc. - Add IsValidHttpToken() API for validating sane ASCII - Add IsAcceptableHostPort() for validating HOST[:PORT] - Send 400 response to HTTP/1.1 requests without a Host - Send 403 response if ZIP or file isn't other readable - Add virtual hosting that tries prepending Host to path - Route requests based on Host in Request-URI if present - Host routing will attempt to remove or add the www. prefix - Sign-extend UNIX timestamps and don't adjust FileTime zone Here's some of the improvements made to Cosmopolitan Libc: - Fix ape.S indentation - Improve consts.sh magnums - Write pretty good URL parser - Improve rusage accounting apis - Bring mremap() closer to working - Added ZIP APIs which will change - Check for overflow in reallocarray() - Remove overly fancy linkage in strerror() - Fix GDB attach on crash w/ OpenBSD msyscall() - Make sigqueue() portable to most UNIX distros - Make integer serialization macros more elegant - Bring back 34x tprecode8to16() performance boost - Make malloc() more resilient to absurdly large sizes
This commit is contained in:
Justine Tunney
parent
69c508729e
commit
bf03b2e64c
307 changed files with 4557 additions and 2581 deletions
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@ -22,6 +22,7 @@
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#include "libc/calls/struct/stat.h"
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#include "libc/fmt/conv.h"
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#include "libc/log/check.h"
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#include "libc/log/log.h"
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#include "libc/mem/mem.h"
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#include "libc/nexgen32e/crc32.h"
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#include "libc/nt/struct/filetime.h"
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@ -45,17 +46,17 @@
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* @fileoverview Zip File Disassembler.
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*/
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nodiscard char *formatdosdate(uint16_t dosdate) {
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nodiscard char *FormatDosDate(uint16_t dosdate) {
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return xasprintf("%04u-%02u-%02u", ((dosdate >> 9) & 0b1111111) + 1980,
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(dosdate >> 5) & 0b1111, dosdate & 0b11111);
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}
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nodiscard char *formatdostime(uint16_t dostime) {
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nodiscard char *FormatDosTime(uint16_t dostime) {
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return xasprintf("%02u:%02u:%02u", (dostime >> 11) & 0b11111,
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(dostime >> 5) & 0b111111, (dostime << 1) & 0b111110);
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}
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void advancepos(uint8_t *map, size_t *pos, size_t off) {
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void AdvancePosition(uint8_t *map, size_t *pos, size_t off) {
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CHECK_GE(off, *pos);
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if (off > *pos) {
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printf("\n/\t<%s>\n", "LIMBO");
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@ -65,7 +66,7 @@ void advancepos(uint8_t *map, size_t *pos, size_t off) {
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*pos = off;
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}
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void showgeneralflag(uint16_t generalflag) {
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void ShowGeneralFlag(uint16_t generalflag) {
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puts("\
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/ ┌─utf8\n\
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/ │ ┌─strong encryption\n\
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@ -77,21 +78,21 @@ void showgeneralflag(uint16_t generalflag) {
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show(".short", format(b1, "0b%016b", generalflag), "generalflag");
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}
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void showtimestamp(uint16_t time, uint16_t date) {
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void ShowTimestamp(uint16_t time, uint16_t date) {
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show(".short", format(b1, "%#04hx", time),
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gc(xasprintf("%s (%s)", "lastmodifiedtime", gc(formatdostime(time)))));
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gc(xasprintf("%s (%s)", "lastmodifiedtime", gc(FormatDosTime(time)))));
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show(".short", format(b1, "%#04hx", date),
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gc(xasprintf("%s (%s)", "lastmodifieddate", gc(formatdosdate(date)))));
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gc(xasprintf("%s (%s)", "lastmodifieddate", gc(FormatDosDate(date)))));
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}
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void showcompressmethod(uint16_t compressmethod) {
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void ShowCompressionMethod(uint16_t compressmethod) {
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show(".short",
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firstnonnull(findnamebyid(kZipCompressionNames, compressmethod),
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format(b1, "%hu", compressmethod)),
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"compressionmethod");
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}
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void showextrantfs(uint8_t *ntfs) {
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void ShowNtfs(uint8_t *ntfs, size_t n) {
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struct timespec mtime, atime, ctime;
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mtime = FileTimeToTimeSpec(
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(struct NtFileTime){READ32LE(ntfs + 8), READ32LE(ntfs + 12)});
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@ -115,47 +116,85 @@ void showextrantfs(uint8_t *ntfs) {
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void ShowExtendedTimestamp(uint8_t *p, size_t n, bool islocal) {
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int flag;
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int64_t x;
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struct timespec ts;
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flag = *p++;
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show(".byte", gc(xasprintf("0b%03hhb", flag)), "fields present in local");
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if (!islocal) {
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show(".quad", gc(xasprintf("%u", READ32LE(p))),
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gc(xasprintf("%s (%s)", "last modified", gc(xiso8601(&ts)))));
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} else {
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if (flag & 1) {
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ts = (struct timespec){READ32LE(p)};
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show(".quad", gc(xasprintf("%u", READ32LE(p))),
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gc(xasprintf("%s (%s)", "last modified", gc(xiso8601(&ts)))));
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if (n) {
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--n;
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flag = *p++;
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show(".byte", gc(xasprintf("0b%03hhb", flag)), "fields present in local");
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if ((flag & 1) && n >= 4) {
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show(".long", gc(xasprintf("%u", READ32LE(p))),
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gc(xasprintf("%s (%s)", "last modified",
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gc(xiso8601(&(struct timespec){READ32LE(p)})))));
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p += 4;
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n -= 4;
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}
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flag >>= 1;
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if (flag & 1) {
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ts = (struct timespec){READ32LE(p)};
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show(".quad", gc(xasprintf("%u", READ32LE(p))),
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gc(xasprintf("%s (%s)", "access time", gc(xiso8601(&ts)))));
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p += 4;
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}
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flag >>= 1;
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if (flag & 1) {
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ts = (struct timespec){READ32LE(p)};
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show(".quad", gc(xasprintf("%u", READ32LE(p))),
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gc(xasprintf("%s (%s)", "creation time", gc(xiso8601(&ts)))));
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if (islocal) {
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if ((flag & 1) && n >= 4) {
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show(".long", gc(xasprintf("%u", READ32LE(p))),
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gc(xasprintf("%s (%s)", "access time",
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gc(xiso8601(&(struct timespec){READ32LE(p)})))));
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p += 4;
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n -= 4;
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}
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flag >>= 1;
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if ((flag & 1) && n >= 4) {
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show(".long", gc(xasprintf("%u", READ32LE(p))),
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gc(xasprintf("%s (%s)", "creation time",
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gc(xiso8601(&(struct timespec){READ32LE(p)})))));
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p += 4;
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n -= 4;
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}
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}
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}
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}
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void showextra(uint8_t *extra, bool islocal) {
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void ShowZip64(uint8_t *p, size_t n, bool islocal) {
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if (n >= 8) {
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show(".quad", gc(xasprintf("%lu", READ64LE(p))),
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gc(xasprintf("uncompressed size (%,ld)", READ64LE(p))));
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}
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if (n >= 16) {
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show(".quad", gc(xasprintf("%lu", READ64LE(p + 8))),
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gc(xasprintf("compressed size (%,ld)", READ64LE(p + 8))));
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}
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if (n >= 24) {
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show(".quad", gc(xasprintf("%lu", READ64LE(p + 16))),
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gc(xasprintf("lfile hdr offset (%,ld)", READ64LE(p + 16))));
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}
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if (n >= 28) {
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show(".long", gc(xasprintf("%u", READ32LE(p + 24))), "disk number");
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}
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}
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void ShowInfoZipNewUnixExtra(uint8_t *p, size_t n, bool islocal) {
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if (p[0] == 1 && p[1] == 4 && p[6] == 4) {
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show(".byte", "1", "version");
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show(".byte", "4", "uid length");
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show(".long", gc(xasprintf("%u", READ32LE(p + 2))), "uid");
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show(".byte", "4", "gid length");
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show(".long", gc(xasprintf("%u", READ32LE(p + 7))), "gid");
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} else {
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disassemblehex(p, n, stdout);
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}
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}
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void ShowExtra(uint8_t *extra, bool islocal) {
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switch (ZIP_EXTRA_HEADERID(extra)) {
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case kZipExtraNtfs:
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showextrantfs(ZIP_EXTRA_CONTENT(extra));
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ShowNtfs(ZIP_EXTRA_CONTENT(extra), ZIP_EXTRA_CONTENTSIZE(extra));
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break;
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case kZipExtraExtendedTimestamp:
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ShowExtendedTimestamp(ZIP_EXTRA_CONTENT(extra),
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ZIP_EXTRA_CONTENTSIZE(extra), islocal);
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break;
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case kZipExtraZip64:
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/* TODO */
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ShowZip64(ZIP_EXTRA_CONTENT(extra), ZIP_EXTRA_CONTENTSIZE(extra),
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islocal);
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break;
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case kZipExtraInfoZipNewUnixExtra:
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ShowInfoZipNewUnixExtra(ZIP_EXTRA_CONTENT(extra),
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ZIP_EXTRA_CONTENTSIZE(extra), islocal);
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break;
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default:
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disassemblehex(ZIP_EXTRA_CONTENT(extra), ZIP_EXTRA_CONTENTSIZE(extra),
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stdout);
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@ -163,7 +202,7 @@ void showextra(uint8_t *extra, bool islocal) {
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}
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}
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void showexternalattributes(uint8_t *cf) {
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void ShowExternalAttributes(uint8_t *cf) {
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uint32_t ea;
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ea = ZIP_CFILE_EXTERNALATTRIBUTES(cf);
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if (ZIP_CFILE_FILEATTRCOMPAT(cf) == kZipOsUnix) {
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@ -175,7 +214,7 @@ void showexternalattributes(uint8_t *cf) {
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}
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}
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void showextras(uint8_t *extras, uint16_t extrassize, bool islocal) {
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void ShowExtras(uint8_t *extras, uint16_t extrassize, bool islocal) {
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int i;
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bool first;
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uint8_t *p, *pe;
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@ -194,14 +233,14 @@ void showextras(uint8_t *extras, uint16_t extrassize, bool islocal) {
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first = false;
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printf("%d:", (i + 1) * 10);
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}
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showextra(p, islocal);
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ShowExtra(p, islocal);
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printf("%d:", (i + 2) * 10);
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}
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}
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putchar('\n');
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}
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void showlocalfileheader(uint8_t *lf, uint16_t idx) {
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void ShowLocalFileHeader(uint8_t *lf, uint16_t idx) {
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printf("\n/\t%s #%hu (%zu %s)\n", "local file", idx + 1,
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ZIP_LFILE_HDRSIZE(lf), "bytes");
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show(".ascii", format(b1, "%`'.*s", 4, lf), "magic");
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@ -213,17 +252,23 @@ void showlocalfileheader(uint8_t *lf, uint16_t idx) {
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firstnonnull(findnamebyid(kZipOsNames, ZIP_LFILE_OSNEED(lf)),
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gc(xasprintf("%d", ZIP_LFILE_OSNEED(lf)))),
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"os need");
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showgeneralflag(ZIP_LFILE_GENERALFLAG(lf));
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showcompressmethod(ZIP_LFILE_COMPRESSIONMETHOD(lf));
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showtimestamp(ZIP_LFILE_LASTMODIFIEDTIME(lf), ZIP_LFILE_LASTMODIFIEDDATE(lf));
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show(".long", format(b1, "%#x", ZIP_LFILE_CRC32(lf)),
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gc(xasprintf(
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"%s (%#x)", "crc32z",
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crc32_z(0, ZIP_LFILE_CONTENT(lf), ZIP_LFILE_COMPRESSEDSIZE(lf)))));
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show(".long", "3f-2f",
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format(b1, "%s (%u %s)", "compressedsize", ZIP_LFILE_COMPRESSEDSIZE(lf),
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"bytes"));
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show(".long", format(b1, "%u", ZIP_LFILE_UNCOMPRESSEDSIZE(lf)),
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ShowGeneralFlag(ZIP_LFILE_GENERALFLAG(lf));
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ShowCompressionMethod(ZIP_LFILE_COMPRESSIONMETHOD(lf));
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ShowTimestamp(ZIP_LFILE_LASTMODIFIEDTIME(lf), ZIP_LFILE_LASTMODIFIEDDATE(lf));
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show(
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".long",
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format(b1, "%#x", ZIP_LFILE_CRC32(lf)), gc(xasprintf("%s (%#x)", "crc32z", GetZipLfileCompressedSize(lf) /* crc32_z(0, ZIP_LFILE_CONTENT(lf), GetZipLfileCompressedSize(lf)) */)));
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if (ZIP_LFILE_COMPRESSEDSIZE(lf) == 0xFFFFFFFF) {
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show(".long", "0xFFFFFFFF", "compressedsize (zip64)");
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} else {
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show(".long", "3f-2f",
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format(b1, "%s (%u %s)", "compressedsize",
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ZIP_LFILE_COMPRESSEDSIZE(lf), "bytes"));
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}
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show(".long",
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ZIP_LFILE_UNCOMPRESSEDSIZE(lf) == 0xFFFFFFFF
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? "0xFFFFFFFF"
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: format(b1, "%u", ZIP_LFILE_UNCOMPRESSEDSIZE(lf)),
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"uncompressedsize");
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show(".short", "1f-0f",
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format(b1, "%s (%hu %s)", "namesize", ZIP_LFILE_NAMESIZE(lf), "bytes"));
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@ -236,17 +281,19 @@ void showlocalfileheader(uint8_t *lf, uint16_t idx) {
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gc(strndup(ZIP_LFILE_NAME(lf), ZIP_LFILE_NAMESIZE(lf)))),
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"name");
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printf("1:");
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showextras(ZIP_LFILE_EXTRA(lf), ZIP_LFILE_EXTRASIZE(lf), true);
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ShowExtras(ZIP_LFILE_EXTRA(lf), ZIP_LFILE_EXTRASIZE(lf), true);
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printf("2:");
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disassemblehex(ZIP_LFILE_CONTENT(lf), ZIP_LFILE_COMPRESSEDSIZE(lf), stdout);
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/* disassemblehex(ZIP_LFILE_CONTENT(lf), ZIP_LFILE_COMPRESSEDSIZE(lf),
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* stdout); */
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printf("3:\n");
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}
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|
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void showcentralfileheader(uint8_t *cf) {
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void ShowCentralFileHeader(uint8_t *cf) {
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printf("\n/\t%s (%zu %s)\n", "central directory file header",
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ZIP_CFILE_HDRSIZE(cf), "bytes");
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show(".ascii", format(b1, "%`'.*s", 4, cf), "magic");
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show(".byte", gc(xasprintf("%d", ZIP_CFILE_VERSIONMADE(cf))), "version made");
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show(".byte", gc(xasprintf("%d", ZIP_CFILE_VERSIONMADE(cf))),
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"zip version made");
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show(".byte",
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firstnonnull(findnamebyid(kZipOsNames, ZIP_CFILE_FILEATTRCOMPAT(cf)),
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gc(xasprintf("%d", ZIP_CFILE_FILEATTRCOMPAT(cf)))),
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|
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@ -259,14 +306,22 @@ void showcentralfileheader(uint8_t *cf) {
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firstnonnull(findnamebyid(kZipOsNames, ZIP_CFILE_OSNEED(cf)),
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gc(xasprintf("%d", ZIP_CFILE_OSNEED(cf)))),
|
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"os need");
|
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showgeneralflag(ZIP_CFILE_GENERALFLAG(cf));
|
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showcompressmethod(ZIP_CFILE_COMPRESSIONMETHOD(cf));
|
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showtimestamp(ZIP_CFILE_LASTMODIFIEDTIME(cf), ZIP_CFILE_LASTMODIFIEDDATE(cf));
|
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ShowGeneralFlag(ZIP_CFILE_GENERALFLAG(cf));
|
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ShowCompressionMethod(ZIP_CFILE_COMPRESSIONMETHOD(cf));
|
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ShowTimestamp(ZIP_CFILE_LASTMODIFIEDTIME(cf), ZIP_CFILE_LASTMODIFIEDDATE(cf));
|
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show(".long", format(b1, "%#x", ZIP_CFILE_CRC32(cf)), "crc32z");
|
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show(".long", format(b1, "%u", ZIP_CFILE_COMPRESSEDSIZE(cf)),
|
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"compressedsize");
|
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show(".long", format(b1, "%u", ZIP_CFILE_UNCOMPRESSEDSIZE(cf)),
|
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"uncompressedsize");
|
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if (ZIP_CFILE_COMPRESSEDSIZE(cf) == 0xFFFFFFFF) {
|
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show(".long", "0xFFFFFFFF", "compressedsize (zip64)");
|
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} else {
|
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show(".long", format(b1, "%u", ZIP_CFILE_COMPRESSEDSIZE(cf)),
|
||||
"compressedsize");
|
||||
}
|
||||
if (ZIP_CFILE_UNCOMPRESSEDSIZE(cf) == 0xFFFFFFFF) {
|
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show(".long", "0xFFFFFFFF", "compressedsize (zip64)");
|
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} else {
|
||||
show(".long", format(b1, "%u", ZIP_CFILE_UNCOMPRESSEDSIZE(cf)),
|
||||
"uncompressedsize");
|
||||
}
|
||||
show(".short", "1f-0f",
|
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format(b1, "%s (%hu %s)", "namesize", ZIP_CFILE_NAMESIZE(cf), "bytes"));
|
||||
show(
|
||||
|
|
@ -277,23 +332,29 @@ void showcentralfileheader(uint8_t *cf) {
|
|||
"bytes"));
|
||||
show(".short", format(b1, "%hu", ZIP_CFILE_DISK(cf)), "disk");
|
||||
show(".short",
|
||||
RecreateFlags(kZipIattrNames, ZIP_CFILE_INTERNALATTRIBUTES(cf)),
|
||||
RecreateFlags(kZipIattrNames, ZIP_CFILE_INTERNALATTRIBUTES(cf) & 1),
|
||||
"internalattributes");
|
||||
showexternalattributes(cf);
|
||||
show(".long", format(b1, "%u", ZIP_CFILE_OFFSET(cf)), "lfile hdr offset");
|
||||
ShowExternalAttributes(cf);
|
||||
if (ZIP_CFILE_OFFSET(cf) == 0xFFFFFFFF) {
|
||||
show(".long", "0xFFFFFFFF", "lfile hdr offset (zip64)");
|
||||
} else {
|
||||
show(".long", format(b1, "%u", ZIP_CFILE_OFFSET(cf)), "lfile hdr offset");
|
||||
}
|
||||
printf("0:");
|
||||
show(".ascii",
|
||||
format(b1, "%`'s",
|
||||
gc(strndup(ZIP_CFILE_NAME(cf), ZIP_CFILE_NAMESIZE(cf)))),
|
||||
"name");
|
||||
printf("1:");
|
||||
showextras(ZIP_CFILE_EXTRA(cf), ZIP_CFILE_EXTRASIZE(cf), false);
|
||||
ShowExtras(ZIP_CFILE_EXTRA(cf), ZIP_CFILE_EXTRASIZE(cf), false);
|
||||
printf("2:");
|
||||
disassemblehex(ZIP_CFILE_COMMENT(cf), ZIP_CFILE_COMMENTSIZE(cf), stdout);
|
||||
show(".ascii",
|
||||
format(b1, "%`'.*s", ZIP_CFILE_COMMENTSIZE(cf), ZIP_CFILE_COMMENT(cf)),
|
||||
"comment");
|
||||
printf("3:\n");
|
||||
}
|
||||
|
||||
void showcentraldirheader(uint8_t *cd) {
|
||||
void ShowCentralDirHeader32(uint8_t *cd) {
|
||||
printf("\n/\t%s (%zu %s)\n", "end of central directory header",
|
||||
ZIP_CDIR_HDRSIZE(cd), "bytes");
|
||||
show(".ascii", format(b1, "%`'.*s", 4, cd), "magic");
|
||||
|
|
@ -312,39 +373,116 @@ void showcentraldirheader(uint8_t *cd) {
|
|||
printf("1:\n");
|
||||
}
|
||||
|
||||
void disassemblezip(uint8_t *map, size_t mapsize) {
|
||||
void ShowCentralDirHeader64(uint8_t *cd) {
|
||||
printf("\n/\t%s (%zu %s)\n", "zip64 end of central directory header",
|
||||
ZIP_CDIR64_HDRSIZE(cd), "bytes");
|
||||
show(".ascii", format(b1, "%`'.*s", 4, cd), "magic");
|
||||
show(".quad", format(b1, "%lu", ZIP_CDIR64_HDRSIZE(cd) - 12), "hdr size");
|
||||
show(".short", format(b1, "%hd", ZIP_CDIR64_VERSIONMADE(cd)), "version made");
|
||||
show(".short", format(b1, "%hd", ZIP_CDIR64_VERSIONNEED(cd)), "version need");
|
||||
show(".long", format(b1, "%d", ZIP_CDIR64_DISK(cd)), "disk");
|
||||
show(".long", format(b1, "%d", ZIP_CDIR64_STARTINGDISK(cd)), "startingdisk");
|
||||
show(".quad", format(b1, "%lu", ZIP_CDIR64_RECORDSONDISK(cd)),
|
||||
"recordsondisk");
|
||||
show(".quad", format(b1, "%lu", ZIP_CDIR64_RECORDS(cd)), "records");
|
||||
show(".quad", format(b1, "%lu", ZIP_CDIR64_SIZE(cd)), "cdir size");
|
||||
show(".quad", format(b1, "%lu", ZIP_CDIR64_OFFSET(cd)), "cdir offset");
|
||||
printf("0:");
|
||||
disassemblehex(ZIP_CDIR64_COMMENT(cd), ZIP_CDIR64_COMMENTSIZE(cd), stdout);
|
||||
printf("1:\n");
|
||||
}
|
||||
|
||||
uint8_t *GetZipCdir32(const uint8_t *p, size_t n) {
|
||||
size_t i;
|
||||
if (n >= kZipCdirHdrMinSize) {
|
||||
i = n - kZipCdirHdrMinSize;
|
||||
do {
|
||||
if (READ32LE(p + i) == kZipCdirHdrMagic && IsZipCdir32(p, n, i)) {
|
||||
return (/*unconst*/ uint8_t *)(p + i);
|
||||
}
|
||||
} while (i--);
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
uint8_t *GetZipCdir64(const uint8_t *p, size_t n) {
|
||||
size_t i;
|
||||
if (n >= kZipCdir64HdrMinSize) {
|
||||
i = n - kZipCdir64HdrMinSize;
|
||||
do {
|
||||
if (READ32LE(p + i) == kZipCdir64HdrMagic && IsZipCdir64(p, n, i)) {
|
||||
return (/*unconst*/ uint8_t *)(p + i);
|
||||
}
|
||||
} while (i--);
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void DisassembleZip(const char *path, uint8_t *p, size_t n) {
|
||||
size_t pos;
|
||||
uint16_t i;
|
||||
static int records;
|
||||
uint8_t *cd, *cf, *lf;
|
||||
CHECK_NOTNULL((cd = zipfindcentraldir(map, mapsize)));
|
||||
uint8_t *eocd32, *eocd64, *cdir, *cf, *lf, *q;
|
||||
if (endswith(path, ".com.dbg") && (q = memmem(p, n, "MZqFpD", 6))) {
|
||||
n -= q - p;
|
||||
p += q - p;
|
||||
}
|
||||
eocd32 = GetZipCdir32(p, n);
|
||||
eocd64 = GetZipCdir64(p, n);
|
||||
CHECK(eocd32 || eocd64);
|
||||
pos = 0;
|
||||
records = ZIP_CDIR_RECORDS(cd);
|
||||
for (i = 0, cf = map + ZIP_CDIR_OFFSET(cd); i < records;
|
||||
++i, cf += ZIP_CFILE_HDRSIZE(cf)) {
|
||||
lf = map + ZIP_CFILE_OFFSET(cf);
|
||||
if (eocd64) {
|
||||
records = ZIP_CDIR64_RECORDS(eocd64);
|
||||
cdir = p + ZIP_CDIR64_OFFSET(eocd64);
|
||||
} else {
|
||||
records = ZIP_CDIR_RECORDS(eocd32);
|
||||
cdir = p + ZIP_CDIR_OFFSET(eocd32);
|
||||
}
|
||||
for (i = 0, cf = cdir; i < records; ++i, cf += ZIP_CFILE_HDRSIZE(cf)) {
|
||||
lf = p + GetZipCfileOffset(cf);
|
||||
CHECK_EQ(kZipLfileHdrMagic, ZIP_LFILE_MAGIC(lf));
|
||||
advancepos(map, &pos, lf - map);
|
||||
showlocalfileheader(lf, i);
|
||||
pos = (lf - map) + ZIP_LFILE_SIZE(lf);
|
||||
AdvancePosition(p, &pos, lf - p);
|
||||
ShowLocalFileHeader(lf, i);
|
||||
pos = (lf - p) + ZIP_LFILE_SIZE(lf);
|
||||
}
|
||||
for (i = 0, cf = map + ZIP_CDIR_OFFSET(cd); i < records;
|
||||
++i, cf += ZIP_CFILE_HDRSIZE(cf)) {
|
||||
for (i = 0, cf = cdir; i < records; ++i, cf += ZIP_CFILE_HDRSIZE(cf)) {
|
||||
CHECK_EQ(kZipCfileHdrMagic, ZIP_CFILE_MAGIC(cf));
|
||||
advancepos(map, &pos, cf - map);
|
||||
showcentralfileheader(cf);
|
||||
pos = (cf - map) + ZIP_CFILE_HDRSIZE(cf);
|
||||
AdvancePosition(p, &pos, cf - p);
|
||||
ShowCentralFileHeader(cf);
|
||||
pos = (cf - p) + ZIP_CFILE_HDRSIZE(cf);
|
||||
}
|
||||
advancepos(map, &pos, cd - map);
|
||||
showcentraldirheader(cd);
|
||||
pos = (cd - map) + ZIP_CDIR_HDRSIZE(cd);
|
||||
advancepos(map, &pos, mapsize);
|
||||
if (eocd32 && eocd64) {
|
||||
if (eocd32 < eocd64) {
|
||||
ShowCentralDirHeader32(eocd32);
|
||||
AdvancePosition(p, &pos, eocd32 - p);
|
||||
ShowCentralDirHeader64(eocd64);
|
||||
AdvancePosition(p, &pos, eocd64 - p);
|
||||
} else {
|
||||
ShowCentralDirHeader64(eocd64);
|
||||
AdvancePosition(p, &pos, eocd64 - p);
|
||||
ShowCentralDirHeader32(eocd32);
|
||||
AdvancePosition(p, &pos, eocd32 - p);
|
||||
}
|
||||
} else if (eocd32) {
|
||||
ShowCentralDirHeader32(eocd32);
|
||||
AdvancePosition(p, &pos, eocd32 - p);
|
||||
} else {
|
||||
ShowCentralDirHeader64(eocd64);
|
||||
AdvancePosition(p, &pos, eocd64 - p);
|
||||
}
|
||||
if (!eocd64 || eocd32 > eocd64) {
|
||||
pos = eocd32 - p + ZIP_CDIR_HDRSIZE(eocd32);
|
||||
} else {
|
||||
pos = eocd64 - p + ZIP_CDIR_HDRSIZE(eocd64);
|
||||
}
|
||||
AdvancePosition(p, &pos, n);
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[]) {
|
||||
int fd;
|
||||
uint8_t *map;
|
||||
struct stat st;
|
||||
showcrashreports();
|
||||
CHECK_EQ(2, argc);
|
||||
CHECK_NE(-1, (fd = open(argv[1], O_RDONLY)));
|
||||
CHECK_NE(-1, fstat(fd, &st));
|
||||
|
|
@ -353,7 +491,7 @@ int main(int argc, char *argv[]) {
|
|||
(map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0)));
|
||||
showtitle("αcτµαlly pδrταblε εxεcµταblε", "tool/decode/zip",
|
||||
basename(argv[1]), NULL, &kModelineAsm);
|
||||
disassemblezip(map, st.st_size);
|
||||
DisassembleZip(argv[1], map, st.st_size);
|
||||
CHECK_NE(-1, munmap(map, st.st_size));
|
||||
CHECK_NE(-1, close(fd));
|
||||
return 0;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue