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Fix redbean zip central directory lookup

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This regression snuck in at some point. It resulted in the program
sometimes failing to load when the zip content was changed.
This commit is contained in:
Justine Tunney 2021-02-27 10:47:19 -08:00
parent 19d0c15e03
commit 218ef49147
10 changed files with 183 additions and 11 deletions
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1
Makefile
View file

@ -178,6 +178,7 @@ include test/tool/build/lib/test.mk
include test/tool/build/test.mk
include test/tool/viz/lib/test.mk
include test/tool/viz/test.mk
include test/tool/net/test.mk
include test/tool/test.mk
include test/dsp/core/test.mk
include test/dsp/scale/test.mk

1
build/definitions.mk
View file

@ -137,6 +137,7 @@ MATHEMATICAL = \
-fwrapv
DEFAULT_CPPFLAGS = \
-DMODE='"$(MODE)"' \
-DIMAGE_BASE_VIRTUAL=$(IMAGE_BASE_VIRTUAL) \
-nostdinc \
-iquote.

5
build/gdb Executable file
View file

@ -0,0 +1,5 @@
#!/bin/sh
exec gdb -q -nh -i=mi $1 \
-ex "set confirm off" \
-ex "add-symbol-file $1.dbg 0x401000" \
-ex "run"

9
libc/zipos/get.c
View file

@ -16,6 +16,7 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/safemacros.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/stat.h"
#include "libc/limits.h"
@ -33,12 +34,18 @@
struct Zipos *__zipos_get(void) {
static struct Zipos zipos;
static bool once;
const char *exe;
const char *exe, *dir;
char path[PATH_MAX];
size_t mapsize;
uint8_t *cdir;
void *map;
if (!once) {
dir = nulltoempty(getenv("PWD")); /* suboptimal */
exe = (const char *)getauxval(AT_EXECFN);
if (!fileexists(exe) && strlen(dir) + 1 + strlen(exe) + 1 <= PATH_MAX) {
stpcpy(stpcpy(stpcpy(path, dir), "/"), exe);
exe = path;
}
if ((zipos.fd = open(exe, O_RDONLY)) != -1) {
if ((mapsize = getfiledescriptorsize(zipos.fd)) != SIZE_MAX &&
(map = mmap(NULL, mapsize, PROT_READ, MAP_SHARED, zipos.fd, 0)) !=

8
test/libc/stdio/mkostempsm_test.c
View file

@ -24,7 +24,7 @@
#include "libc/sysv/consts/o.h"
#include "libc/testlib/testlib.h"
#define MODE() \
#define Mode() \
({ \
va_list va; \
unsigned Mode; \
@ -40,7 +40,7 @@ static int MockOpen1(const char *file, int flags, ...) {
once = true;
EXPECT_STREQ("/tmp/mkostemps.ctre5m", file);
EXPECT_EQ(O_RDWR | O_CREAT | O_EXCL, flags);
EXPECT_EQ(0600, MODE());
EXPECT_EQ(0600, Mode());
return 123;
}
@ -59,14 +59,14 @@ static int MockOpen2(const char *file, int flags, ...) {
state = 1;
EXPECT_STREQ("/tmp/mkostemps.ctre5m", file);
EXPECT_EQ((unsigned)(O_RDWR | O_CREAT | O_EXCL), flags);
EXPECT_EQ(0600, MODE());
EXPECT_EQ(0600, Mode());
errno = EEXIST;
return -1;
case 1:
state = 1;
EXPECT_STREQ("/tmp/mkostemps.jl1h61", file);
EXPECT_EQ((unsigned)(O_RDWR | O_CREAT | O_EXCL), flags);
EXPECT_EQ(0600, MODE());
EXPECT_EQ(0600, Mode());
return 123;
default:
abort();

76
test/tool/net/redbean_test.c Normal file
View file

@ -0,0 +1,76 @@
/*-*- 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 2021 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/sigbits.h"
#include "libc/fmt/conv.h"
#include "libc/runtime/gc.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/stdio.h"
#include "libc/sysv/consts/auxv.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/sig.h"
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
/* TODO(jart): Finish this */
STATIC_YOINK("zip_uri_support");
STATIC_YOINK("o/" MODE "/tool/net/redbean.com");
char testlib_enable_tmp_setup_teardown;
void SetUp(void) {
return;
ssize_t n;
char buf[512];
int fdin, fdout;
ASSERT_NE(-1, mkdir("bin", 0755));
ASSERT_NE(-1, (fdin = open("zip:o/" MODE "/tool/net/redbean.com", O_RDONLY)));
ASSERT_NE(-1, (fdout = creat("bin/redbean.com", 0755)));
for (;;) {
ASSERT_NE(-1, (n = read(fdin, buf, sizeof(buf))));
if (!n) break;
ASSERT_EQ(n, write(fdout, buf, sizeof(buf)));
}
close(fdout);
close(fdin);
}
TEST(redbean, test) {
return;
char portbuf[16];
int pid, port, pipefds[2];
sigset_t chldmask, savemask;
sigaddset(&chldmask, SIGCHLD);
sigprocmask(SIG_BLOCK, &chldmask, &savemask);
ASSERT_NE(-1, pipe2(pipefds, O_CLOEXEC));
ASSERT_NE(-1, (pid = vfork()));
if (!pid) {
dup2(pipefds[1], 1);
sigprocmask(SIG_SETMASK, &savemask, NULL);
execv("bin/redbean.com",
(char *const[]){"bin/redbean.com", "-zp0", "-l127.0.0.1", 0});
_exit(127);
}
EXPECT_NE(-1, close(pipefds[1]));
EXPECT_NE(-1, read(pipefds[0], portbuf, sizeof(portbuf)));
port = atoi(portbuf);
printf("port %d\n", port);
EXPECT_NE(-1, kill(pid, SIGTERM));
EXPECT_NE(-1, wait(0));
}

69
test/tool/net/test.mk Normal file
View file

@ -0,0 +1,69 @@
#-*-mode:makefile-gmake;indent-tabs-mode:t;tab-width:8;coding:utf-8-*-┐
#───vi: set et ft=make ts=8 tw=8 fenc=utf-8 :vi───────────────────────┘
PKGS += TEST_TOOL_NET
TEST_TOOL_NET = $(TOOL_NET_A_DEPS) $(TOOL_NET_A)
TEST_TOOL_NET_A = o/$(MODE)/test/tool/net/net.a
TEST_TOOL_NET_FILES := $(wildcard test/tool/net/*)
TEST_TOOL_NET_SRCS = $(filter %.c,$(TEST_TOOL_NET_FILES))
TEST_TOOL_NET_SRCS_TEST = $(filter %_test.c,$(TEST_TOOL_NET_SRCS))
TEST_TOOL_NET_HDRS = $(filter %.h,$(TEST_TOOL_NET_FILES))
TEST_TOOL_NET_COMS = $(TEST_TOOL_NET_OBJS:%.o=%.com)
TEST_TOOL_NET_COMS = $(TEST_TOOL_NET_SRCS:%.c=o/$(MODE)/%.com)
TEST_TOOL_NET_OBJS = \
$(TEST_TOOL_NET_SRCS:%.c=o/$(MODE)/%.o) \
o/$(MODE)/tool/net/redbean.com.zip.o
TEST_TOOL_NET_BINS = \
$(TEST_TOOL_NET_COMS) \
$(TEST_TOOL_NET_COMS:%=%.dbg)
TEST_TOOL_NET_TESTS = \
$(TEST_TOOL_NET_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
TEST_TOOL_NET_CHECKS = \
$(TEST_TOOL_NET_HDRS:%=o/$(MODE)/%.ok) \
$(TEST_TOOL_NET_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
TEST_TOOL_NET_DIRECTDEPS = \
LIBC_CALLS \
LIBC_STUBS \
LIBC_FMT \
LIBC_STDIO \
LIBC_INTRIN \
LIBC_NEXGEN32E \
LIBC_SYSV \
LIBC_MEM \
LIBC_RUNTIME \
LIBC_X \
LIBC_TESTLIB \
LIBC_ZIPOS
TEST_TOOL_NET_DEPS := \
$(call uniq,$(foreach x,$(TEST_TOOL_NET_DIRECTDEPS),$($(x))))
$(TEST_TOOL_NET_A): \
test/tool/net/ \
$(TEST_TOOL_NET_A).pkg \
$(TEST_TOOL_NET_OBJS)
$(TEST_TOOL_NET_A).pkg: \
$(TEST_TOOL_NET_OBJS) \
$(foreach x,$(TEST_TOOL_NET_DIRECTDEPS),$($(x)_A).pkg)
o/$(MODE)/test/tool/net/%.com.dbg: \
$(TEST_TOOL_NET_DEPS) \
$(TEST_TOOL_NET_A) \
o/$(MODE)/test/tool/net/%.o \
$(TEST_TOOL_NET_A).pkg \
$(LIBC_TESTMAIN) \
$(CRT) \
$(APE)
@$(APELINK)
.PHONY: o/$(MODE)/test/tool/net
o/$(MODE)/test/tool/net: \
$(TEST_TOOL_NET_BINS) \
$(TEST_TOOL_NET_CHECKS)

1
test/tool/test.mk
View file

@ -4,4 +4,5 @@
.PHONY: o/$(MODE)/test/tool
o/$(MODE)/test/tool: \
o/$(MODE)/test/tool/build \
o/$(MODE)/test/tool/net \
o/$(MODE)/test/tool/viz

16
tool/net/redbean.c
View file

@ -86,6 +86,7 @@ FLAGS\n\
-v verbosity\n\
-d daemonize\n\
-s uniprocess\n\
-z print port\n\
-m log messages\n\
-c INT cache seconds\n\
-r /X=/Y redirect X to Y\n\
@ -216,6 +217,7 @@ static struct Assets {
static bool killed;
static bool notimer;
static bool printport;
static bool heartbeat;
static bool daemonize;
static bool terminated;
@ -372,7 +374,7 @@ void GetOpts(int argc, char *argv[]) {
serveraddr.sin_family = AF_INET;
serveraddr.sin_port = htons(DEFAULT_PORT);
serveraddr.sin_addr.s_addr = INADDR_ANY;
while ((opt = getopt(argc, argv, "hduvml:p:w:r:c:L:P:U:G:B:")) != -1) {
while ((opt = getopt(argc, argv, "zhduvml:p:w:r:c:L:P:U:G:B:")) != -1) {
switch (opt) {
case 'v':
g_loglevel++;
@ -386,6 +388,9 @@ void GetOpts(int argc, char *argv[]) {
case 'm':
logmessages = true;
break;
case 'z':
printport = true;
break;
case 'r':
AddRedirect(optarg);
break;
@ -646,7 +651,7 @@ static bool OpenZip(const char *path) {
if ((fd = open(path, O_RDONLY)) != -1 && fstat(fd, &st) != -1 &&
st.st_size &&
(map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0)) &&
(cdir = zipfindcentraldir(zmap, zmapsize)) && IndexAssets(map, cdir)) {
(cdir = zipfindcentraldir(map, st.st_size)) && IndexAssets(map, cdir)) {
ok = true;
zmap = map;
zbase = map;
@ -1144,6 +1149,7 @@ static void TuneServerSocket(void) {
}
void RedBean(void) {
uint32_t addrsize;
gmtoff = GetGmtOffset();
programfile = (const char *)getauxval(AT_EXECFN);
CHECK(OpenZip(programfile));
@ -1159,9 +1165,15 @@ void RedBean(void) {
TuneServerSocket();
CHECK_NE(-1, bind(server, &serveraddr, sizeof(serveraddr)));
CHECK_NE(-1, listen(server, 10));
addrsize = sizeof(serveraddr);
CHECK_NE(-1, getsockname(server, &serveraddr, &addrsize));
DescribeAddress(serveraddrstr, &serveraddr);
if (daemonize) Daemonize();
VERBOSEF("%s listen", serveraddrstr);
if (printport) {
printf("%d\n", ntohs(serveraddr.sin_port));
fflush(stdout);
}
heartbeat = true;
while (!terminated) {
if (invalidated) {

8
tool/viz/derasterize.c
View file

@ -101,15 +101,15 @@ int y_; /* -y HEIGHT [in flexidecimal] */
#define FAST 1
#define FASTER 2
#define MODE BEST
#define Mode BEST
#if MODE == BEST
#if Mode == BEST
#define MC 9u /* log2(#) of color combos to consider */
#define GN 35u /* # of glyphs to consider */
#elif MODE == FAST
#elif Mode == FAST
#define MC 6u
#define GN 35u
#elif MODE == FASTER
#elif Mode == FASTER
#define MC 4u
#define GN 25u
#endif