168 lines
6.5 KiB
C
168 lines
6.5 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/calls/calls.h"
|
|
#include "libc/calls/struct/stat.h"
|
|
#include "libc/errno.h"
|
|
#include "libc/log/check.h"
|
|
#include "libc/macros.h"
|
|
#include "libc/mem/mem.h"
|
|
#include "libc/nexgen32e/crc32.h"
|
|
#include "libc/runtime/gc.h"
|
|
#include "libc/runtime/runtime.h"
|
|
#include "libc/runtime/symbols.internal.h"
|
|
#include "libc/stdio/stdio.h"
|
|
#include "libc/str/str.h"
|
|
#include "libc/str/undeflate.h"
|
|
#include "libc/sysv/consts/fileno.h"
|
|
#include "libc/sysv/consts/map.h"
|
|
#include "libc/sysv/consts/o.h"
|
|
#include "libc/sysv/consts/prot.h"
|
|
#include "libc/testlib/ezbench.h"
|
|
#include "libc/testlib/hyperion.h"
|
|
#include "libc/testlib/testlib.h"
|
|
#include "libc/x/x.h"
|
|
#include "libc/zip.h"
|
|
#include "third_party/zlib/zlib.h"
|
|
|
|
STATIC_YOINK("zip_uri_support");
|
|
STATIC_YOINK("libc/testlib/hyperion.txt");
|
|
|
|
TEST(undeflate, testEmbeddedPlaintextConstant) {
|
|
EXPECT_STARTSWITH("The fall of Hyperion - a Dream", kHyperion);
|
|
}
|
|
|
|
TEST(undeflate, testStatCentralDirectory_notFound_noSysCalls) {
|
|
uint64_t c;
|
|
struct stat st;
|
|
stat("zip:doge.txt", &st); /* warmup */
|
|
c = g_syscount;
|
|
ASSERT_EQ(-1, stat("zip:doge.txt", &st));
|
|
ASSERT_EQ(0, g_syscount - c);
|
|
ASSERT_EQ(ENOENT, errno);
|
|
}
|
|
|
|
TEST(undeflate, testStatCentralDirectory_isFound_noSysCalls) {
|
|
uint64_t c;
|
|
struct stat st = {0};
|
|
c = g_syscount;
|
|
ASSERT_NE(-1, stat("zip:libc/testlib/hyperion.txt", &st));
|
|
ASSERT_TRUE(S_ISREG(st.st_mode));
|
|
ASSERT_EQ(kHyperionSize, st.st_size);
|
|
ASSERT_EQ(0, g_syscount - c);
|
|
}
|
|
|
|
TEST(undeflate, testOpenReadCloseEmbeddedZip) {
|
|
int fd;
|
|
char *data;
|
|
ASSERT_NE(-1, (fd = open("zip:libc/testlib/hyperion.txt", O_RDONLY)));
|
|
ASSERT_NE(NULL, (data = gc(malloc(kHyperionSize))));
|
|
ASSERT_EQ(kHyperionSize, read(fd, data, kHyperionSize));
|
|
EXPECT_EQ(0, memcmp(kHyperion, data, kHyperionSize));
|
|
EXPECT_NE(-1, close(fd));
|
|
}
|
|
|
|
TEST(undeflate, testEmbeddedCompressedZipFile_theHardWay) {
|
|
int fd;
|
|
size_t i;
|
|
bool found;
|
|
struct stat st;
|
|
struct DeflateState ds;
|
|
uint8_t *map, *cd, *cf, *lf, *data;
|
|
found = false;
|
|
ASSERT_NE(-1, (fd = open(FindComBinary(), O_RDONLY)));
|
|
ASSERT_NE(-1, fstat(fd, &st));
|
|
ASSERT_NE(MAP_FAILED,
|
|
(map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0)));
|
|
ASSERT_NE(NULL, (cd = zipfindcentraldir(map, st.st_size)));
|
|
ASSERT_GE(ZIP_CDIR_RECORDS(cd), 1);
|
|
for (i = 0, cf = map + ZIP_CDIR_OFFSET(cd); i < ZIP_CDIR_RECORDS(cd);
|
|
++i, cf += ZIP_CFILE_HDRSIZE(cf)) {
|
|
if (strncmp("libc/testlib/hyperion.txt", ZIP_CFILE_NAME(cf),
|
|
ZIP_CFILE_NAMESIZE(cf)) == 0) {
|
|
lf = map + ZIP_CFILE_OFFSET(cf);
|
|
ASSERT_EQ(kZipCompressionDeflate, ZIP_LFILE_COMPRESSIONMETHOD(lf));
|
|
ASSERT_EQ(kHyperionSize, ZIP_LFILE_UNCOMPRESSEDSIZE(lf));
|
|
undeflate((data = gc(xmalloc(ZIP_LFILE_UNCOMPRESSEDSIZE(lf) * 24))),
|
|
ZIP_LFILE_UNCOMPRESSEDSIZE(lf), ZIP_LFILE_CONTENT(lf),
|
|
ZIP_LFILE_COMPRESSEDSIZE(lf), &ds);
|
|
ASSERT_EQ(ZIP_LFILE_CRC32(lf),
|
|
crc32_z(0, data, ZIP_LFILE_UNCOMPRESSEDSIZE(lf)));
|
|
ASSERT_EQ(0, memcmp(kHyperion, data, ZIP_LFILE_UNCOMPRESSEDSIZE(lf)));
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
ASSERT_NE(-1, munmap(map, st.st_size));
|
|
ASSERT_NE(-1, close(fd));
|
|
ASSERT_TRUE(found);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
uint8_t *buf_;
|
|
size_t bufsize_;
|
|
uint8_t *data_;
|
|
size_t compressedsize_;
|
|
size_t uncompressedsize_;
|
|
struct DeflateState ds_;
|
|
|
|
void Inflate(void) {
|
|
z_stream stream;
|
|
stream.next_in = data_;
|
|
stream.zalloc = Z_NULL;
|
|
stream.zfree = Z_NULL;
|
|
stream.avail_in = compressedsize_;
|
|
stream.total_in = compressedsize_;
|
|
stream.next_out = buf_;
|
|
stream.avail_out = bufsize_;
|
|
stream.total_out = bufsize_;
|
|
CHECK_EQ(Z_OK, inflateInit2(&stream, -MAX_WBITS));
|
|
CHECK_NE(Z_BUF_ERROR, inflate(&stream, Z_NO_FLUSH));
|
|
CHECK_EQ(Z_OK, inflateEnd(&stream));
|
|
}
|
|
|
|
void Undeflate(void) {
|
|
undeflate(buf_, uncompressedsize_, data_, compressedsize_, &ds_);
|
|
}
|
|
|
|
static size_t GetLocalFile(const char *name) {
|
|
size_t i, cf, namesize;
|
|
namesize = strlen(name);
|
|
for (i = 0, cf = ZIP_CDIR_OFFSET(__zip_end); i < ZIP_CDIR_RECORDS(__zip_end);
|
|
++i, cf += ZIP_CFILE_HDRSIZE(cf)) {
|
|
if (namesize == ZIP_CFILE_NAMESIZE(&_base[0] + cf) &&
|
|
memcmp(name, ZIP_CFILE_NAME(&_base[0] + cf), namesize) == 0) {
|
|
return ZIP_CFILE_OFFSET(&_base[0] + cf);
|
|
}
|
|
}
|
|
abort();
|
|
}
|
|
|
|
BENCH(undeflate, bench) {
|
|
size_t lf;
|
|
lf = GetLocalFile("libc/testlib/hyperion.txt");
|
|
data_ = ZIP_LFILE_CONTENT(&_base[0] + lf);
|
|
compressedsize_ = ZIP_LFILE_COMPRESSEDSIZE(&_base[0] + lf);
|
|
uncompressedsize_ = ZIP_LFILE_UNCOMPRESSEDSIZE(&_base[0] + lf);
|
|
bufsize_ = ROUNDUP(uncompressedsize_, FRAMESIZE / 2);
|
|
buf_ = gc(malloc(bufsize_));
|
|
EZBENCH(donothing, Inflate());
|
|
EZBENCH(donothing, Undeflate());
|
|
}
|