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Make major improvements to redbean and libraries

Browse source 
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 2021-04-18 11:34:59 -07:00
parent 69c508729e
commit bf03b2e64c
307 changed files with 4557 additions and 2581 deletions
Download patch file Download diff file Expand all files Collapse all files

2
libc/calls/calls.h
View file

@ -5,6 +5,7 @@
#include "libc/calls/struct/rlimit.h"
#include "libc/calls/struct/rusage.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/sigval.h"
#include "libc/calls/struct/stat.h"
#include "libc/calls/struct/sysinfo.h"
#include "libc/calls/struct/timespec.h"
@ -120,6 +121,7 @@ int getrlimit(int, struct rlimit *);
int getrusage(int, struct rusage *);
int kill(int, int);
int killpg(int, int);
int sigqueue(int, int, const union sigval);
int link(const char *, const char *) nothrow;
int linkat(int, const char *, int, const char *, uint32_t);
int lstat(const char *, struct stat *);

9
libc/calls/clock_gettime.c
View file

@ -30,14 +30,10 @@
* time. Among the more popular is CLOCK_MONOTONIC. This function has a
* zero syscall implementation of that on modern x86.
*
* @param clockid can be CLOCK_REALTIME, CLOCK_MONOTONIC, etc. noting
* that on Linux CLOCK_MONOTONIC is redefined to use the monotonic
* clock that's actually monotonic lool
* @param clockid can be CLOCK_REALTIME, CLOCK_MONOTONIC, etc.
* @param ts is where the result is stored
* @return 0 on success, or -1 w/ errno
* @error ENOSYS if clockid isn't available; in which case this function
* guarantees an ordinary timestamp is still stored to ts; and
* errno isn't restored to its original value, to detect prec. loss
* @error EINVAL if clockid isn't supported on this system
* @see strftime(), gettimeofday()
* @asyncsignalsafe
*/
@ -46,6 +42,7 @@ int clock_gettime(int clockid, struct timespec *ts) {
axdx_t ad;
struct NtFileTime ft;
if (!ts) return efault();
if (clockid == -1) return einval();
if (!IsWindows()) {
if ((rc = sys_clock_gettime(clockid, ts)) == -1 && errno == ENOSYS) {
ad = sys_gettimeofday((struct timeval *)ts, NULL, NULL);

35
libc/calls/getrusage-sysv.c Normal file
View file

@ -0,0 +1,35 @@
/*-*- 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/internal.h"
#include "libc/sysv/errfuns.h"
/**
* Returns resource usage statistics.
*
* @param who can be RUSAGE_{SELF,CHILDREN,THREAD}
* @return 0 on success, or -1 w/ errno
*/
int sys_getrusage(int who, struct rusage *usage) {
int rc;
if ((rc = __sys_getrusage(who, usage)) != -1) {
__rusage2linux(usage);
}
return rc;
}

8
libc/calls/internal.h
View file

@ -4,7 +4,10 @@
#include "libc/calls/internal.h"
#include "libc/calls/struct/iovec.h"
#include "libc/calls/struct/itimerval.h"
#include "libc/calls/struct/rusage.h"
#include "libc/calls/struct/sigaction-xnu.internal.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/calls/struct/sigval.h"
#include "libc/calls/struct/timespec.h"
#include "libc/calls/struct/timeval.h"
#include "libc/dce.h"
@ -108,9 +111,11 @@ i32 __sys_dup3(i32, i32, i32) hidden;
i32 __sys_execve(const char *, char *const[], char *const[]) hidden;
i32 __sys_fstat(i32, struct stat *) hidden;
i32 __sys_fstatat(i32, const char *, struct stat *, i32) hidden;
i32 __sys_getrusage(i32, struct rusage *) hidden;
i32 __sys_openat(i32, const char *, i32, u32) hidden;
i32 __sys_pipe2(i32[hasatleast 2], u32) hidden;
i32 __sys_utimensat(i32, const char *, const struct timespec *, i32) hidden;
i32 __sys_wait4(i32, i32 *, i32, struct rusage *) hidden;
i32 getdents(i32, char *, u32, i64 *) hidden;
i32 sys_chdir(const char *) hidden;
i32 sys_clock_gettime(i32, struct timespec *) hidden;
@ -170,6 +175,8 @@ i32 sys_setrlimit(i32, const struct rlimit *) hidden;
i32 sys_setsid(void) hidden;
i32 sys_sigaction(i32, const void *, void *, i64, i64) hidden;
i32 sys_sigprocmask(i32, const sigset *, sigset *, u64) hidden;
i32 sys_sigqueue(i32, i32, const union sigval) hidden;
i32 sys_sigqueueinfo(i32, const siginfo_t *) hidden;
i32 sys_sigsuspend(const sigset *, u64) hidden;
i32 sys_symlinkat(const char *, i32, const char *) hidden;
i32 sys_sync(void) hidden;
@ -220,6 +227,7 @@ int gethostname_linux(char *, size_t) hidden;
int gethostname_bsd(char *, size_t) hidden;
int gethostname_nt(char *, size_t) hidden;
size_t __iovec_size(const struct iovec *, size_t) hidden;
void __rusage2linux(struct rusage *) hidden;
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § syscalls » windows nt » veneers ─╬─│┼

2
libc/calls/kill.c
View file

@ -33,7 +33,7 @@
* <-1 signals all processes in -pid process group
* @param sig can be:
* >0 can be SIGINT, SIGTERM, SIGKILL, SIGUSR1, etc.
* =0 is for error checking
* =0 checks both if pid exists and we can signal it
* @return 0 if something was accomplished, or -1 w/ errno
* @asyncsignalsafe
*/

4
libc/calls/mprotect.greg.c
View file

@ -39,12 +39,12 @@ privileged int mprotect(void *addr, uint64_t len, int prot) {
int64_t rc;
uint32_t oldprot;
if (!IsWindows()) {
asm volatile(CFLAG_ASM("syscall")
asm volatile(CFLAG_ASM("clc\n\tsyscall")
: CFLAG_CONSTRAINT(cf), "=a"(rc)
: "1"(__NR_mprotect), "D"(addr), "S"(len), "d"(prot)
: "rcx", "r11", "memory", "cc");
if (cf) {
rc = -rc;
errno = rc;
rc = -1;
} else if (rc > -4096ul) {
errno = -rc;

13
libc/calls/open-nt.c
View file

@ -47,14 +47,11 @@ static textwindows int64_t sys_open_nt_impl(int dirfd, const char *path,
? kNtFileShareExclusive
: kNtFileShareRead | kNtFileShareWrite | kNtFileShareDelete,
&kNtIsInheritable,
(flags & O_CREAT) && (flags & O_EXCL)
? kNtCreateNew
: (flags & O_CREAT) && (flags & O_TRUNC)
? kNtCreateAlways
: (flags & O_CREAT)
? kNtOpenAlways
: (flags & O_TRUNC) ? kNtTruncateExisting
: kNtOpenExisting,
(flags & O_CREAT) && (flags & O_EXCL) ? kNtCreateNew
: (flags & O_CREAT) && (flags & O_TRUNC) ? kNtCreateAlways
: (flags & O_CREAT) ? kNtOpenAlways
: (flags & O_TRUNC) ? kNtTruncateExisting
: kNtOpenExisting,
/* TODO(jart): Should we just always set overlapped? */
(/* note: content indexer demolishes unix-ey i/o performance */
kNtFileAttributeNotContentIndexed | kNtFileAttributeNormal |

25
libc/calls/rusage2linux.c Normal file
View file

@ -0,0 +1,25 @@
/*-*- 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/internal.h"
void __rusage2linux(struct rusage *ru) {
if (IsXnu()) {
ru->ru_maxrss /= 1024;
}
}

2
libc/calls/sigaction.c
View file

@ -39,6 +39,8 @@
#include "libc/sysv/consts/sig.h"
#include "libc/sysv/errfuns.h"
#define SA_RESTORER 0x04000000
#ifndef SWITCHEROO
#define SWITCHEROO(S1, S2, A, B, C, D) \
do { \

59
libc/calls/sigqueue.c Normal file
View file

@ -0,0 +1,59 @@
/*-*- 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/internal.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/calls/struct/sigval.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/sicode.h"
/* TODO(jart): XNU */
/**
* Sends signal to process, with data.
*
* The impact of this action can be terminating the process, or
* interrupting it to request something happen.
*
* @param pid can be:
* >0 signals one process by id
* =0 signals all processes in current process group
* -1 signals all processes possible (except init)
* <-1 signals all processes in -pid process group
* @param sig can be:
* >0 can be SIGINT, SIGTERM, SIGKILL, SIGUSR1, etc.
* =0 checks both if pid exists and we can signal it
* @return 0 if something was accomplished, or -1 w/ errno
* @note this isn't supported on OpenBSD
* @asyncsignalsafe
*/
int sigqueue(int pid, int sig, const union sigval value) {
siginfo_t info;
if (IsFreebsd()) {
return sys_sigqueue(pid, sig, value);
} else {
memset(&info, 0, sizeof(info));
info.si_signo = sig;
info.si_code = SI_QUEUE;
info.si_pid = getpid();
info.si_uid = geteuid();
info.si_value = value;
return sys_sigqueueinfo(pid, &info);
}
}

4
libc/calls/struct/rlimit.h
View file

@ -3,8 +3,8 @@
#if !(__ASSEMBLER__ + __LINKER__ + 0)
struct rlimit {
int64_t rlim_cur;
int64_t rlim_max;
uint64_t rlim_cur; /* current (soft) limit in bytes */
uint64_t rlim_max; /* maximum limit in bytes */
};
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */

12
libc/calls/struct/rusage.h
View file

@ -8,12 +8,12 @@ struct rusage {
struct {
struct timeval ru_utime; /* user CPU time used */
struct timeval ru_stime; /* system CPU time used */
int64_t ru_maxrss; /* maximum resident set size */
int64_t ru_ixrss; /* integral shared memory size */
int64_t ru_idrss; /* integral unshared data size */
int64_t ru_isrss; /* integral unshared stack size */
int64_t ru_minflt; /* page reclaims (soft page faults) */
int64_t ru_majflt; /* page faults (hard page faults) */
int64_t ru_maxrss; /* maximum resident set size in (kb) */
int64_t ru_ixrss; /* shared memory size (integral kb CLK_TCK) */
int64_t ru_idrss; /* unshared data size (integral kb CLK_TCK) */
int64_t ru_isrss; /* unshared stack size (integral kb CLK_TCK) */
int64_t ru_minflt; /* page reclaims */
int64_t ru_majflt; /* page faults */
int64_t ru_nswap; /* swaps */
int64_t ru_inblock; /* block input operations */
int64_t ru_oublock; /* block output operations */

4
libc/calls/struct/siginfo.h
View file

@ -6,7 +6,7 @@
struct siginfo {
int32_t si_signo;
int32_t si_errno;
int32_t si_code;
int32_t si_code; /* {SICODE,SEGV,ILL,FPE,POLL}_xxx */
union {
struct {
union {
@ -20,7 +20,7 @@ struct siginfo {
};
};
union {
union sigval si_value;
union sigval si_value; /* provided by third arg of sigqueue(2) */
struct {
int32_t si_status;
int64_t si_utime, si_stime;

31
libc/calls/wait4-sysv.c Normal file
View file

@ -0,0 +1,31 @@
/*-*- 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/internal.h"
int sys_wait4(int pid, int *opt_out_wstatus, int options,
struct rusage *opt_out_rusage) {
int rc;
if ((rc = __sys_wait4(pid, opt_out_wstatus, options, opt_out_rusage)) != -1) {
if (opt_out_rusage) {
__rusage2linux(opt_out_rusage);
}
}
return rc;
}

1
libc/calls/weirdtypes.h
View file

@ -37,6 +37,7 @@
#define time_t int64_t
#define timer_t void*
#define uid_t uint32_t
#define rlim_t uint64_t /* int64_t on bsd */
#define int_fast8_t __INT_FAST8_TYPE__
#define uint_fast8_t __UINT_FAST8_TYPE__