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Fix bugs and add security features to redbean

Browse source 
- Fix a regression with the previous change that broke redbean
- Add chroot(), resource limit, seccomp, and other stuff to redbean
- Write lots and lots of documentation
- Iron out more system call issues
This commit is contained in:
Justine Tunney 2022-04-18 00:01:26 -07:00
parent f1dfa4bdfa
commit 7166679620
182 changed files with 1855 additions and 918 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
libc/calls/calls.h
View file

@ -155,7 +155,7 @@ int pipe(int[hasatleast 2]);
int pipe2(int[hasatleast 2], int);
int posix_fadvise(int, uint64_t, uint64_t, int);
int posix_madvise(void *, uint64_t, int);
int prctl();
int prctl(int, ...);
int raise(int);
int reboot(int);
int remove(const char *);
@ -232,6 +232,7 @@ uint32_t umask(uint32_t);
void rewinddir(DIR *);
void sync(void);
int getloadavg(double *, int);
int seccomp(unsigned, unsigned, void *);
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § system calls » formatting ─╬─│┼

3
libc/calls/calls.mk
View file

@ -83,6 +83,9 @@ o/$(MODE)/libc/calls/ntcontext2linux.o: \
-O3
# TODO(jart): make va_arg optimize well in default mode
o//libc/calls/open.o \
o//libc/calls/openat.o \
o//libc/calls/prctl.o \
o//libc/calls/ioctl.o \
o//libc/calls/ioctl_default.o \
o//libc/calls/ioctl_fioclex-nt.o \

2
libc/calls/chdir-nt.c
View file

@ -76,5 +76,5 @@ textwindows int sys_chdir_nt(const char *path) {
}
}
}
return -1;
return __fix_enotdir(-1, path16);
}

2
libc/calls/chdir.c
View file

@ -32,7 +32,7 @@
*/
int chdir(const char *path) {
int rc;
if (IsAsan() && !__asan_is_valid(path, 1)) {
if (!path || (IsAsan() && !__asan_is_valid(path, 1))) {
rc = efault();
} else if (!IsWindows()) {
rc = sys_chdir(path);

33
libc/calls/chroot.c Normal file
View file

@ -0,0 +1,33 @@
/*-*- 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 2022 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/strace.internal.h"
/**
* Changes root directory.
*
* @raise ENOSYS on Windows
*/
int chroot(const char *path) {
int rc;
rc = sys_chroot(path);
STRACE("chroot(%s) → %d% m", path, rc);
return rc;
}

4
libc/calls/directmap.c
View file

@ -22,7 +22,6 @@
#include "libc/intrin/describeflags.internal.h"
#include "libc/nt/runtime.h"
#include "libc/runtime/directmap.internal.h"
#include "libc/runtime/memtrack.internal.h"
#include "libc/str/str.h"
/**
@ -32,6 +31,9 @@
* support Windows NT and Address Sanitizer. That memory tracking can be
* bypassed by calling this function. However the caller is responsible
* for passing the magic memory handle on Windows NT to CloseHandle().
*
* @asyncsignalsafe
* @threadsafe
*/
struct DirectMap sys_mmap(void *addr, size_t size, int prot, int flags, int fd,
int64_t off) {

2
libc/calls/faccessat-nt.c
View file

@ -24,5 +24,5 @@
int sys_faccessat_nt(int dirfd, const char *path, int mode, uint32_t flags) {
char16_t path16[PATH_MAX];
if (__mkntpathat(dirfd, path, 0, path16) == -1) return -1;
return ntaccesscheck(path16, mode);
return __fix_enotdir(ntaccesscheck(path16, mode), path16);
}

63
libc/calls/fixenotdir.c Normal file
View file

@ -0,0 +1,63 @@
/*-*- 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 2022 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"
#include "libc/errno.h"
#include "libc/nt/enum/fileflagandattributes.h"
#include "libc/nt/errors.h"
#include "libc/nt/files.h"
static textwindows bool SubpathExistsThatsNotDirectory(char16_t *path) {
int e;
char16_t *p;
uint32_t attrs;
e = errno;
while ((p = strrchr16(path, '\\'))) {
*p = u'\0';
if ((attrs = GetFileAttributes(path)) != -1u) {
if (attrs & kNtFileAttributeDirectory) {
return false;
} else {
return true;
}
} else {
errno = e;
}
}
return false;
}
// WIN32 doesn't distinguish between ENOTDIR and ENOENT. UNIX strictly
// requires that a directory component *exists* but is not a directory
// whereas WIN32 will return ENOTDIR if a dir label simply isn't found
//
// - ENOTDIR: A component used as a directory in pathname is not, in
// fact, a directory. -or- pathname is relative and dirfd is a file
// descriptor referring to a file other than a directory.
//
// - ENOENT: A directory component in pathname does not exist or is a
// dangling symbolic link.
//
textwindows int64_t __fix_enotdir(int64_t rc, char16_t *path) {
if (rc == -1 && errno == kNtErrorPathNotFound) {
if (!SubpathExistsThatsNotDirectory(path)) {
errno = kNtErrorFileNotFound;
}
}
return rc;
}

11
libc/calls/getrlimit.c
View file

@ -21,6 +21,7 @@
#include "libc/calls/strace.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/sysv/consts/rlimit.h"
#include "libc/sysv/errfuns.h"
/**
@ -36,10 +37,16 @@ int getrlimit(int resource, struct rlimit *rlim) {
char buf[64];
if (resource == 127) {
rc = einval();
} else if (IsAsan() && !__asan_is_valid(rlim, sizeof(*rlim))) {
} else if (!rlim || (IsAsan() && !__asan_is_valid(rlim, sizeof(*rlim)))) {
rc = efault();
} else {
} else if (!IsWindows()) {
rc = sys_getrlimit(resource, rlim);
} else if (resource == RLIMIT_AS) {
rlim->rlim_cur = __virtualmax;
rlim->rlim_max = __virtualmax;
rc = 0;
} else {
rc = einval();
}
STRACE("getrlimit(%s, [%s]) → %d% m", __strace_rlimit_name(resource),
__strace_rlimit(buf, sizeof(buf), rc, rlim), rc);

4
libc/calls/internal.h
View file

@ -5,6 +5,7 @@
#include "libc/calls/struct/iovec.h"
#include "libc/calls/struct/itimerval.h"
#include "libc/calls/struct/metastat.internal.h"
#include "libc/calls/struct/rlimit.h"
#include "libc/calls/struct/rusage.h"
#include "libc/calls/struct/sigaction-xnu.internal.h"
#include "libc/calls/struct/siginfo-xnu.internal.h"
@ -133,6 +134,7 @@ 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 sys_chdir(const char *) hidden;
i32 sys_chroot(const char *) hidden;
i32 sys_clock_gettime(i32, struct timespec *) hidden;
i32 sys_close(i32) hidden;
i32 sys_dup(i32) hidden;
@ -310,6 +312,7 @@ int sys_sync_nt(void) hidden;
int sys_sysinfo_nt(struct sysinfo *) hidden;
int sys_truncate_nt(const char *, u64) hidden;
int sys_unlinkat_nt(int, const char *, int) hidden;
int sys_setrlimit_nt(int, const struct rlimit *) hidden;
int sys_utimensat_nt(int, const char *, const struct timespec *, int) hidden;
int sys_utimes_nt(const char *, const struct timeval[2]) hidden;
ssize_t sys_open_nt(int, const char *, u32, i32) dontdiscard hidden;
@ -322,6 +325,7 @@ int ioctl_tiocgwinsz_nt(struct Fd *, struct winsize *) hidden;
│ cosmopolitan § syscalls » windows nt » support ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
int64_t __fix_enotdir(int64_t, char16_t *) hidden;
bool _check_interrupts(bool, struct Fd *) hidden;
void _check_sigchld(void) hidden;
void _check_sigalrm(void) hidden;

10
libc/calls/issandboxed.h Normal file
View file

@ -0,0 +1,10 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_ISSANDBOXED_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_ISSANDBOXED_INTERNAL_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
extern bool __issandboxed;
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_ISSANDBOXED_INTERNAL_H_ */

40
libc/calls/mkdirat-nt.c
View file

@ -17,50 +17,12 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/internal.h"
#include "libc/errno.h"
#include "libc/nt/enum/fileflagandattributes.h"
#include "libc/nt/files.h"
#include "libc/nt/runtime.h"
#include "libc/str/str.h"
static textwindows bool SubpathExistsThatsNotDirectory(char16_t *path) {
int e;
char16_t *p;
uint32_t attrs;
e = errno;
while ((p = strrchr16(path, '\\'))) {
*p = u'\0';
if ((attrs = GetFileAttributes(path)) != -1u) {
if (attrs & kNtFileAttributeDirectory) {
return false;
} else {
return true;
}
} else {
errno = e;
}
}
return false;
}
textwindows int sys_mkdirat_nt(int dirfd, const char *path, uint32_t mode) {
int e;
char16_t *p, path16[PATH_MAX];
if (__mkntpathat(dirfd, path, 0, path16) == -1) return -1;
if (CreateDirectory(path16, 0)) return 0;
// WIN32 doesn't distinguish between ENOTDIR and ENOENT
//
// - ENOTDIR: A component used as a directory in pathname is not, in
// fact, a directory. -or- pathname is relative and dirfd is a file
// descriptor referring to a file other than a directory.
//
// - ENOENT: A directory component in pathname does not exist or is a
// dangling symbolic link.
if (errno == ENOTDIR) {
if (!SubpathExistsThatsNotDirectory(path16)) {
errno = ENOENT;
}
}
return -1;
return __fix_enotdir(-1, path16);
}

10
libc/calls/munmap-sysv.c
View file

@ -19,8 +19,16 @@
#include "libc/calls/internal.h"
#include "libc/calls/strace.internal.h"
#include "libc/runtime/directmap.internal.h"
#include "libc/runtime/memtrack.internal.h"
/**
* Unmaps memory directly with system.
*
* This function bypasses memtrack. Therefore it won't work on Windows,
* but it works on everything else including bare metal.
*
* @asyncsignalsafe
* @threadsafe
*/
int sys_munmap(void *p, size_t n) {
int rc;
if (!IsMetal()) {

4
libc/calls/open-nt.c
View file

@ -42,7 +42,9 @@ static textwindows int64_t sys_open_nt_impl(int dirfd, const char *path,
uint32_t perm, share, disp, attr;
if (__mkntpathat(dirfd, path, flags, path16) == -1) return -1;
if (GetNtOpenFlags(flags, mode, &perm, &share, &disp, &attr) == -1) return -1;
return CreateFile(path16, perm, share, &kNtIsInheritable, disp, attr, 0);
return __fix_enotdir(
CreateFile(path16, perm, share, &kNtIsInheritable, disp, attr, 0),
path16);
}
static textwindows ssize_t sys_open_nt_console(int dirfd,

8
libc/calls/poll.c
View file

@ -87,11 +87,13 @@ int poll(struct pollfd *fds, size_t nfds, int timeout_ms) {
if (rc == -1 && errno == EFAULT) {
STRACE("poll(%p, %'lu, %'d) → %d% lm", fds, nfds, timeout_ms, rc);
} else {
char flagbuf[2][64];
kprintf(STRACE_PROLOGUE "poll({");
for (i = 0; i < MIN(5, nfds); ++i) {
kprintf("%s{%d,%s,%s}", i ? ", " : "", fds[i].fd,
DescribePollFlags(fds[i].events),
DescribePollFlags(fds[i].revents));
kprintf(
"%s{%d, %s, %s}", i ? ", " : "", fds[i].fd,
DescribePollFlags(flagbuf[0], sizeof(flagbuf[0]), fds[i].events),
DescribePollFlags(flagbuf[1], sizeof(flagbuf[1]), fds[i].revents));
}
kprintf("%s}, %'zu, %'d) → %d% lm%n", i == 5 ? "..." : "", nfds,
timeout_ms, rc);

52
libc/calls/prctl.c Normal file
View file

@ -0,0 +1,52 @@
/*-*- 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 2022 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/strace.internal.h"
#include "libc/errno.h"
#include "libc/sysv/errfuns.h"
/**
* Tunes process on Linux.
*
* @raise ENOSYS on non-Linux.
*/
int prctl(int operation, ...) {
int rc;
va_list va;
intptr_t a, b;
register intptr_t c asm("r10");
register intptr_t d asm("r8");
va_start(va, operation);
a = va_arg(va, intptr_t);
b = va_arg(va, intptr_t);
c = va_arg(va, intptr_t);
d = va_arg(va, intptr_t);
va_end(va);
if (IsLinux()) {
asm volatile("syscall"
: "=a"(rc)
: "0"(157), "D"(operation), "S"(a), "d"(b), "r"(c), "r"(d)
: "rcx", "r11", "memory");
if (rc > -4096u) errno = -rc, rc = -1;
} else {
rc = enosys();
}
STRACE("seccomp(%d, %p, %p, %p, %p) → %d% m", operation, a, b, c, d, rc);
return rc;
}

4
libc/calls/pread.c
View file

@ -56,7 +56,7 @@ ssize_t pread(int fd, void *buf, size_t size, int64_t offset) {
rc = ebadf();
}
assert(rc == -1 || (size_t)rc <= size);
STRACE("pread(%d, [%#.*hhs%s], %'zu, %'zd) → %'zd% m", fd,
MAX(0, MIN(40, rc)), buf, rc > 40 ? "..." : "", size, offset, rc);
DATATRACE("pread(%d, [%#.*hhs%s], %'zu, %'zd) → %'zd% m", fd,
MAX(0, MIN(40, rc)), buf, rc > 40 ? "..." : "", size, offset, rc);
return rc;
}

4
libc/calls/pwrite.c
View file

@ -58,7 +58,7 @@ ssize_t pwrite(int fd, const void *buf, size_t size, int64_t offset) {
assert(wrote <= size);
}
}
STRACE("pwrite(%d, %#.*hhs%s, %'zu, %'zd) → %'zd% m", fd, MAX(0, MIN(40, rc)),
buf, rc > 40 ? "..." : "", size, offset, rc);
DATATRACE("pwrite(%d, %#.*hhs%s, %'zu, %'zd) → %'zd% m", fd,
MAX(0, MIN(40, rc)), buf, rc > 40 ? "..." : "", size, offset, rc);
return rc;
}

4
libc/calls/read.c
View file

@ -62,7 +62,7 @@ ssize_t read(int fd, void *buf, size_t size) {
} else {
rc = einval();
}
STRACE("read(%d, [%#.*hhs%s], %'zu) → %'zd% m", fd, MAX(0, MIN(40, rc)), buf,
rc > 40 ? "..." : "", size, rc);
DATATRACE("read(%d, [%#.*hhs%s], %'zu) → %'zd% m", fd, MAX(0, MIN(40, rc)),
buf, rc > 40 ? "..." : "", size, rc);
return rc;
}

28
libc/calls/readv.c
View file

@ -22,6 +22,7 @@
#include "libc/calls/strace.internal.h"
#include "libc/calls/struct/iovec.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/kprintf.h"
#include "libc/sock/internal.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.internal.h"
@ -40,7 +41,9 @@
* @restartable
*/
ssize_t readv(int fd, const struct iovec *iov, int iovlen) {
ssize_t rc;
int i;
ssize_t rc, rem;
if (fd >= 0 && iovlen >= 0) {
if (IsAsan() && !__asan_is_valid_iov(iov, iovlen)) {
rc = efault();
@ -63,6 +66,27 @@ ssize_t readv(int fd, const struct iovec *iov, int iovlen) {
} else {
rc = einval();
}
STRACE("readv(%d, %p, %d) → %'zd% m", fd, iov, iovlen, rc);
#if defined(SYSDEBUG) && _DATATRACE
if (__strace > 0) {
if (rc == -1 && errno == EFAULT) {
STRACE("readv(%d, %p, %d) → %'zd% m", fd, iov, iovlen, rc);
} else {
rem = rc != -1 ? rc : 0;
kprintf(STRACE_PROLOGUE "readv(%d, [{", fd);
for (i = 0; i < MIN(5, iovlen); ++i) {
kprintf("%s{%#.*hhs%s, %'zu}", i ? ", " : "",
MAX(0, MIN(40, MIN(rem, iov[i].iov_len))), iov[i].iov_base,
MAX(0, MIN(40, MIN(rem, iov[i].iov_len))) < iov[i].iov_len
? "..."
: "",
iov[i].iov_len);
rem -= iov[i].iov_len;
}
kprintf("%s}], %d) → %'ld% m%n", iovlen > 5 ? "..." : "", iovlen, rc);
}
}
#endif
return rc;
}

69
libc/calls/seccomp.c Normal file
View file

@ -0,0 +1,69 @@
/*-*- 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 2022 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/issandboxed.h"
#include "libc/calls/strace.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/sysv/consts/pr.h"
#include "libc/sysv/consts/seccomp.h"
#include "libc/sysv/errfuns.h"
/**
* Tunes Linux security policy.
*
* This system call was first introduced in Linux 3.17. We polyfill
* automatically features like SECCOMP_SET_MODE_STRICT, for kernels
* dating back to 2.6.23, whenever possible.
*
* @raise ENOSYS on non-Linux.
*/
int seccomp(unsigned operation, unsigned flags, void *args) {
int rc;
if (IsLinux()) {
asm volatile("syscall"
: "=a"(rc)
: "0"(317), "D"(operation), "S"(flags), "d"(args)
: "rcx", "r11", "memory");
if (rc == -ENOSYS) {
if (operation == SECCOMP_SET_MODE_STRICT) {
asm volatile("syscall"
: "=a"(rc)
: "0"(157), "D"(PR_SET_SECCOMP), "S"(SECCOMP_MODE_STRICT)
: "rcx", "r11", "memory");
} else if (operation == SECCOMP_SET_MODE_FILTER && !flags) {
asm volatile("syscall"
: "=a"(rc)
: "0"(157), "D"(PR_SET_SECCOMP), "S"(SECCOMP_MODE_FILTER),
"d"(args)
: "rcx", "r11", "memory");
}
}
if (rc > -4096u) {
errno = -rc;
rc = -1;
}
} else {
rc = enosys();
}
STRACE("seccomp(%s, %#x, %p) → %d% m",
DescribeSeccompOperationFlags(operation), flags, args, rc);
return rc;
}

37
libc/calls/setrlimit.c
View file

@ -16,17 +16,39 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/strace.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/sysv/consts/rlimit.h"
#include "libc/sysv/errfuns.h"
/**
* Sets resource limit for current process.
*
* @param resource can be RLIMIT_{CPU,FSIZE,DATA,STACK,CORE,RSS,etc.}
* The following resources are recommended:
*
* - `RLIMIT_AS` limits the size of the virtual address space. This will
* work on all platforms. It's emulated on XNU and Windows which means
* it won't propagate across execve() currently.
*
* - `RLIMIT_CPU` causes `SIGXCPU` to be sent to the process when the
* soft limit on CPU time is exceeded, and the process is destroyed
* when the hard limit is exceeded. It works everywhere but Windows
* where it should be possible to poll getrusage() with setitimer()
*
* - `RLIMIT_FSIZE` causes `SIGXFSZ` to sent to the process when the
* soft limit on file size is exceeded and the process is destroyed
* when the hard limit is exceeded. It works everywhere but Windows
*
* - `RLIMIT_NPROC` limits the number of simultaneous processes and it
* should work on all platforms except Windows.
*
* - `RLIMIT_NOFILE` limits the number of open file descriptors and it
* should work on all platforms except Windows (TODO)
*
* @param rlim specifies new resource limit
* @return 0 on success or -1 w/ errno
* @see libc/sysv/consts.sh
@ -37,10 +59,19 @@ int setrlimit(int resource, const struct rlimit *rlim) {
char buf[64];
if (resource == 127) {
rc = einval();
} else if (IsAsan() && !__asan_is_valid(rlim, sizeof(*rlim))) {
} else if (!rlim || (IsAsan() && !__asan_is_valid(rlim, sizeof(*rlim)))) {
rc = efault();
} else {
} else if (!IsWindows()) {
rc = sys_setrlimit(resource, rlim);
if (IsXnu() && !rc && resource == RLIMIT_AS) {
// TODO(jart): What's up with XNU and NetBSD?
__virtualmax = rlim->rlim_cur;
}
} else if (resource == RLIMIT_AS) {
__virtualmax = rlim->rlim_cur;
rc = 0;
} else {
rc = einval();
}
STRACE("setrlimit(%s, %s) → %d% m", __strace_rlimit_name(resource),
__strace_rlimit(buf, sizeof(buf), 0, rlim), rc);

4
libc/calls/stat2cosmo.c
View file

@ -24,6 +24,10 @@ void __stat2cosmo(struct stat *restrict st, const union metastat *ms) {
if (st) {
if (IsLinux()) {
st->st_birthtim = st->st_ctim;
if (st->st_atim.tv_sec < st->st_ctim.tv_sec)
st->st_birthtim = st->st_atim;
if (st->st_mtim.tv_sec < st->st_ctim.tv_sec)
st->st_birthtim = st->st_mtim;
} else if (IsXnu()) {
st->st_dev = ms->xnu.st_dev;
st->st_ino = ms->xnu.st_ino;

7
libc/calls/strace.internal.h
View file

@ -7,6 +7,7 @@
#define _NT_RLIMIT_PWSS_MB 1000 /* nocommit */
#define _KERNTRACE 0 /* not configurable w/ flag yet */
#define _POLLTRACE 0 /* not configurable w/ flag yet */
#define _DATATRACE 1 /* not configurable w/ flag yet */
#define _NTTRACE 0 /* not configurable w/ flag yet */
#define STRACE_PROLOGUE "%rSYS %5P %'18T "
@ -25,6 +26,12 @@ COSMOPOLITAN_C_START_
#define STRACE(FMT, ...) (void)0
#endif
#if defined(SYSDEBUG) && _DATATRACE
#define DATATRACE(FMT, ...) STRACE(FMT, ##__VA_ARGS__)
#else
#define DATATRACE(FMT, ...) (void)0
#endif
#if defined(SYSDEBUG) && _POLLTRACE
#define POLLTRACE(FMT, ...) STRACE(FMT, ##__VA_ARGS__)
#else

54
libc/calls/struct/seccomp.h Normal file
View file

@ -0,0 +1,54 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SECCOMP_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SECCOMP_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
struct seccomp_data {
int32_t nr;
uint32_t arch;
uint64_t instruction_pointer;
uint64_t args[6];
};
struct seccomp_notif_sizes {
uint16_t seccomp_notif;
uint16_t seccomp_notif_resp;
uint16_t seccomp_data;
};
struct seccomp_notif {
uint64_t id;
uint32_t pid;
uint32_t flags;
struct seccomp_data data;
};
struct seccomp_notif_resp {
uint64_t id;
int64_t val;
int32_t error;
uint32_t flags;
};
struct seccomp_notif_addfd {
uint64_t id;
uint32_t flags;
uint32_t srcfd;
uint32_t newfd;
uint32_t newfd_flags;
};
#define SECCOMP_IOC_MAGIC '!'
#define SECCOMP_IO(nr) _IO(SECCOMP_IOC_MAGIC, nr)
#define SECCOMP_IOR(nr, type) _IOR(SECCOMP_IOC_MAGIC, nr, type)
#define SECCOMP_IOW(nr, type) _IOW(SECCOMP_IOC_MAGIC, nr, type)
#define SECCOMP_IOWR(nr, type) _IOWR(SECCOMP_IOC_MAGIC, nr, type)
#define SECCOMP_IOCTL_NOTIF_RECV SECCOMP_IOWR(0, struct seccomp_notif)
#define SECCOMP_IOCTL_NOTIF_SEND SECCOMP_IOWR(1, struct seccomp_notif_resp)
#define SECCOMP_IOCTL_NOTIF_ID_VALID SECCOMP_IOW(2, __u64)
#define SECCOMP_IOCTL_NOTIF_ADDFD SECCOMP_IOW(3, struct seccomp_notif_addfd)
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SECCOMP_H_ */

28
libc/calls/virtualmax.c Normal file
View file

@ -0,0 +1,28 @@
/*-*- 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 2022 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"
/**
* Maximum amount of virtual memory in bytes.
*
* mmap() will return ENOMEM once this is reached.
*
* By default no limit is imposed.
*/
size_t __virtualmax;

2
libc/calls/write-nt.c
View file

@ -51,6 +51,8 @@ static textwindows ssize_t sys_write_nt_impl(int fd, void *data, size_t size,
__sig_raise(SIGPIPE, SI_KERNEL);
return epipe();
}
// kNtErrorInvalidHandle → EBADF (consts.sh)
// kNtErrorNotEnoughQuota → EDQUOT (consts.sh; SetProcessWorkingSetSize)
return __winerr();
}

4
libc/calls/write.c
View file

@ -59,7 +59,7 @@ ssize_t write(int fd, const void *buf, size_t size) {
} else {
rc = einval();
}
STRACE("write(%d, %#.*hhs%s, %'zu) → %'zd% m", fd, MAX(0, MIN(40, rc)), buf,
rc > 40 ? "..." : "", size, rc);
DATATRACE("write(%d, %#.*hhs%s, %'zu) → %'zd% m", fd, MAX(0, MIN(40, rc)),
buf, rc > 40 ? "..." : "", size, rc);
return rc;
}

29
libc/calls/writev.c
View file

@ -20,7 +20,9 @@
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/strace.internal.h"
#include "libc/errno.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/kprintf.h"
#include "libc/sock/internal.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.internal.h"
@ -44,7 +46,9 @@
* @restartable
*/
ssize_t writev(int fd, const struct iovec *iov, int iovlen) {
ssize_t rc;
int i;
ssize_t rc, rem;
if (fd >= 0 && iovlen >= 0) {
if (IsAsan() && !__asan_is_valid_iov(iov, iovlen)) {
rc = efault();
@ -67,6 +71,27 @@ ssize_t writev(int fd, const struct iovec *iov, int iovlen) {
} else {
rc = einval();
}
STRACE("writev(%d, %p, %d) → %'zd% m", fd, iov, iovlen, rc);
#if defined(SYSDEBUG) && _DATATRACE
if (__strace > 0) {
if (rc == -1 && errno == EFAULT) {
STRACE("writev(%d, %p, %d) → %'zd% m", fd, iov, iovlen, rc);
} else {
rem = rc != -1 ? rc : 0;
kprintf(STRACE_PROLOGUE "writev(%d, {", fd);
for (i = 0; i < MIN(5, iovlen); ++i) {
kprintf("%s{%#.*hhs%s, %'zu}", i ? ", " : "",
MAX(0, MIN(40, MIN(rem, iov[i].iov_len))), iov[i].iov_base,
MAX(0, MIN(40, MIN(rem, iov[i].iov_len))) < iov[i].iov_len
? "..."
: "",
iov[i].iov_len);
rem -= iov[i].iov_len;
}
kprintf("%s}, %d) → %'ld% m%n", iovlen > 5 ? "..." : "", iovlen, rc);
}
}
#endif
return rc;
}

1
libc/fmt/kerrornames.S
View file

@ -115,6 +115,7 @@ kErrorNames:
.e ENOTRECOVERABLE
.e ENONET
.e ERESTART
.e ENODATA
.long 0
.endobj kErrorNames,globl,hidden
.overrun

3
libc/intrin/describeflags.internal.h
View file

@ -14,8 +14,9 @@ const char *DescribeFlags(char *, size_t, struct DescribeFlags *, size_t,
const char *DescribeMapFlags(int);
const char *DescribeProtFlags(int);
const char *DescribePollFlags(int);
const char *DescribeRemapFlags(int);
const char *DescribeSeccompOperationFlags(int);
const char *DescribePollFlags(char *, size_t, int);
const char *DescribeNtPageFlags(uint32_t);
const char *DescribeNtStartFlags(uint32_t);

6
libc/intrin/describepollflags.greg.c
View file

@ -21,7 +21,7 @@
#include "libc/nt/enum/filemapflags.h"
#include "libc/sysv/consts/poll.h"
const char *DescribePollFlags(int x) {
const char *DescribePollFlags(char *buf, size_t size, int x) {
const struct DescribeFlags kPollFlags[] = {
{POLLIN, "IN"}, // order matters
{POLLOUT, "OUT"}, // order matters
@ -35,7 +35,5 @@ const char *DescribePollFlags(int x) {
{POLLWRBAND, "WRBAND"}, //
{POLLWRNORM, "WRNORM"}, //
};
static char pollflags[64];
return DescribeFlags(pollflags, sizeof(pollflags), kPollFlags,
ARRAYLEN(kPollFlags), "POLL", x);
return DescribeFlags(buf, size, kPollFlags, ARRAYLEN(kPollFlags), "POLL", x);
}

35
libc/intrin/describeseccompoperationflags.greg.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 2022 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/intrin/describeflags.internal.h"
#include "libc/macros.internal.h"
#include "libc/sysv/consts/seccomp.h"
const struct DescribeFlags kSeccompOperationFlags[] = {
{SECCOMP_GET_NOTIF_SIZES, "GET_NOTIF_SIZES"}, // order matters
{SECCOMP_GET_ACTION_AVAIL, "GET_ACTION_AVAIL"}, //
{SECCOMP_SET_MODE_FILTER, "SET_MODE_FILTER"}, //
{SECCOMP_SET_MODE_STRICT, "SET_MODE_STRICT"}, //
};
const char *DescribeSeccompOperationFlags(int x) {
static char seccompflags[128];
return DescribeFlags(seccompflags, sizeof(seccompflags),
kSeccompOperationFlags, ARRAYLEN(kSeccompOperationFlags),
"SECCOMP_", x);
}

6
libc/intrin/exit.greg.c
View file

@ -21,6 +21,7 @@
#include "libc/dce.h"
#include "libc/nexgen32e/vendor.internal.h"
#include "libc/nt/runtime.h"
#include "libc/runtime/runtime.h"
#include "libc/sysv/consts/nr.h"
/**
@ -31,17 +32,18 @@
*
* @param exitcode is masked with 255
* @asyncsignalsafe
* @threadsafe
* @vforksafe
* @noreturn
*/
privileged noinstrument noasan noubsan wontreturn void _Exit(int exitcode) {
privileged wontreturn void _Exit(int exitcode) {
int i;
STRACE("_Exit(%d)", exitcode);
if (!IsWindows() && !IsMetal()) {
asm volatile("syscall"
: /* no outputs */
: "a"(__NR_exit_group), "D"(exitcode)
: "memory");
: "rcx", "r11", "memory");
} else if (IsWindows()) {
__imp_ExitProcess(exitcode & 0xff);
}

47
libc/intrin/exit1.greg.c Normal file
View file

@ -0,0 +1,47 @@
/*-*- 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/strace.internal.h"
#include "libc/dce.h"
#include "libc/nt/runtime.h"
#include "libc/nt/thread.h"
#include "libc/sysv/consts/nr.h"
/**
* Terminates thread with raw system call.
*
* @param rc only works on Linux and Windows
* @see cthread_exit()
* @threadsafe
* @noreturn
*/
privileged wontreturn void _Exit1(int rc) {
STRACE("_Exit1(%d)", rc);
if (!IsWindows() && !IsMetal()) {
asm volatile("syscall"
: /* no outputs */
: "a"(__NR_exit), "D"(IsLinux() ? rc : 0)
: "rcx", "r11", "memory");
__builtin_unreachable();
} else if (IsWindows()) {
ExitThread(rc);
}
for (;;) {
asm("ud2");
}
}

2
libc/intrin/intrin.mk
View file

@ -64,6 +64,8 @@ o/$(MODE)/libc/intrin/kprintf.greg.o: \
-ffreestanding \
$(NO_MAGIC)
o/$(MODE)/libc/intrin/exit.greg.o \
o/$(MODE)/libc/intrin/exit1.greg.o \
o/$(MODE)/libc/intrin/createfile.greg.o \
o/$(MODE)/libc/intrin/reopenfile.greg.o \
o/$(MODE)/libc/intrin/deletefile.greg.o \

31
libc/intrin/isdebuggerpresent.greg.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/calls/issandboxed.h"
#include "libc/dce.h"
#include "libc/log/libfatal.internal.h"
#include "libc/log/log.h"
@ -35,24 +36,20 @@ noasan noubsan int IsDebuggerPresent(bool force) {
int fd, res;
ssize_t got;
char *p, buf[1024];
if (!force) {
if (IsGenuineCosmo()) return 0;
if (getenv("HEISENDEBUG")) return 0;
}
if (IsWindows()) {
return NtGetPeb()->BeingDebugged; /* needs noasan */
} else {
res = 0;
if ((fd = __sysv_open("/proc/self/status", O_RDONLY, 0)) >= 0) {
if ((got = __sysv_read(fd, buf, sizeof(buf) - 1)) > 0) {
buf[got] = '\0';
if ((p = __strstr(buf, kPid))) {
p += sizeof(kPid) - 1;
res = __atoul(p);
}
if (!force && IsGenuineCosmo()) return 0;
if (!force && getenv("HEISENDEBUG")) return 0;
if (IsWindows()) return NtGetPeb()->BeingDebugged; /* needs noasan */
if (__issandboxed) return false;
res = 0;
if ((fd = __sysv_open("/proc/self/status", O_RDONLY, 0)) >= 0) {
if ((got = __sysv_read(fd, buf, sizeof(buf) - 1)) > 0) {
buf[got] = '\0';
if ((p = __strstr(buf, kPid))) {
p += sizeof(kPid) - 1;
res = __atoul(p);
}
__sysv_close(fd);
}
return res;
__sysv_close(fd);
}
return res;
}

22
libc/intrin/issandboxed.c Normal file
View file

@ -0,0 +1,22 @@
/*-*- 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 2022 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"
// SECCOMP_SET_MODE_STRICT
bool __issandboxed;

5
libc/intrin/kdos2errno.S
View file

@ -33,9 +33,12 @@ kDos2Errno:
// .e kNtErrorFileNotFound,ENOENT # in consts.sh
// .e kNtErrorPathNotFound,ENOTDIR # in consts.sh
// .e kNtErrorTooManyOpenFiles,EMFILE # in consts.sh
// .e kNtErrorTooManyDescriptors,ENFILE # in consts.sh
// .e kNtErrorTooManyLinks,EMLINK # in consts.sh
// .e kNtErrorAccessDenied,EACCES # in consts.sh
// .e kNtErrorInvalidHandle,EBADF # in consts.sh
// .e kNtErrorInvalidAccess,EPERM # in consts.sh
// .e kNtErrorNotEnoughQuota,EDQUOT # in consts.sh
// .e kNtErrorSeek,ESPIPE # in consts.sh
// .e kNtErrorNotDosDisk,ENOTBLK # in consts.sh
// .e kNtErrorFileExists,EEXIST # in consts.sh
@ -48,7 +51,6 @@ kDos2Errno:
// .e kNtErrorAlreadyExists,EEXIST # in consts.sh
// .e kNtErrorBadExeFormat,ENOEXEC # in consts.sh
// .e kNtErrorFileTooLarge,EFBIG # in consts.sh
// .e kNtErrorTooManyDescriptors,ENFILE # in consts.sh
// .e kNtErrorDirectoryNotSupported,EISDIR # in consts.sh
// .e kNtErrorInvalidAddress,EFAULT # in consts.sh
// .e kNtErrorThreadNotInProcess,ESRCH # in consts.sh
@ -160,6 +162,7 @@ kDos2Errno:
.e WSAEDISCON,EPIPE
.e WSAEFAULT,EFAULT
.e WSAEINVAL,EINVAL
.e WSAEDQUOT,EDQUOT
.e WSAEPROCLIM,ENOMEM
.e WSANOTINITIALISED,ENETDOWN
.e WSASYSNOTREADY,ENETDOWN

3
libc/log/backtrace2.c
View file

@ -21,6 +21,7 @@
#include "libc/bits/safemacros.internal.h"
#include "libc/bits/weaken.h"
#include "libc/calls/calls.h"
#include "libc/calls/issandboxed.h"
#include "libc/calls/sigbits.h"
#include "libc/calls/strace.internal.h"
#include "libc/dce.h"
@ -159,7 +160,7 @@ static int PrintBacktraceUsingAddr2line(int fd, const struct StackFrame *bp) {
}
static int PrintBacktrace(int fd, const struct StackFrame *bp) {
if (!IsTiny()) {
if (!IsTiny() && !__issandboxed) {
if (PrintBacktraceUsingAddr2line(fd, bp) != -1) {
return 0;
}

15
libc/log/oncrash.c
View file

@ -17,7 +17,9 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/weaken.h"
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/issandboxed.h"
#include "libc/calls/sigbits.h"
#include "libc/calls/strace.internal.h"
#include "libc/calls/struct/sigaction.h"
@ -198,8 +200,10 @@ relegated void ShowCrashReport(int err, int sig, struct siginfo *si,
names.version[0] = 0;
names.nodename[0] = 0;
__stpcpy(host, "unknown");
gethostname(host, sizeof(host));
uname(&names);
if (!__issandboxed) {
gethostname(host, sizeof(host));
uname(&names);
}
p = buf;
errno = err;
kprintf("%n%serror%s: Uncaught %G (%s) on %s pid %d%n"
@ -211,8 +215,8 @@ relegated void ShowCrashReport(int err, int sig, struct siginfo *si,
ctx->uc_mcontext.rsp <= GetStaticStackAddr(0) + PAGESIZE))
? "Stack Overflow"
: GetSiCodeName(sig, si->si_code),
host, __getpid(), program_invocation_name, names.sysname,
names.version, names.nodename, names.release);
host, getpid(), program_invocation_name, names.sysname, names.version,
names.nodename, names.release);
if (ctx) {
kprintf("%n");
ShowFunctionCalls(ctx);
@ -288,7 +292,8 @@ relegated noinstrument void __oncrash(int sig, struct siginfo *si,
DebugBreak();
} else if (__nocolor || g_isrunningundermake) {
gdbpid = -1;
} else if (!IsTiny() && IsLinux() && FindDebugBinary()) {
} else if (!IsTiny() && IsLinux() && FindDebugBinary() &&
!__issandboxed) {
RestoreDefaultCrashSignalHandlers();
gdbpid = AttachDebugger(
((sig == SIGTRAP || sig == SIGQUIT) &&

13
libc/log/restoretty.c
View file

@ -17,6 +17,7 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/issandboxed.h"
#include "libc/calls/struct/termios.h"
#include "libc/calls/termios.h"
#include "libc/errno.h"
@ -51,10 +52,12 @@ const void *const g_oldtermios_ctor[] initarray = {
void __restore_tty(int fd) {
int e;
e = errno;
if (g_oldtermios.c_lflag && !__nocolor && isatty(fd)) {
write(fd, ANSI_RESTORE, strlen(ANSI_RESTORE));
tcsetattr(fd, TCSAFLUSH, &g_oldtermios);
if (!__issandboxed) {
e = errno;
if (g_oldtermios.c_lflag && !__nocolor && isatty(fd)) {
write(fd, ANSI_RESTORE, strlen(ANSI_RESTORE));
tcsetattr(fd, TCSAFLUSH, &g_oldtermios);
}
errno = e;
}
errno = e;
}

6
libc/nt/errors.h
View file

@ -194,7 +194,7 @@
#define kNtErrorEaListInconsistent 255
#define kNtErrorNoMoreItems 259
#define kNtErrorCannotCopy 266
#define kNtErrorDirectory 267
#define kNtErrorDirectory 267 /* EISDIR */
#define kNtErrorEasDidntFit 275
#define kNtErrorEaFileCorrupt 276
#define kNtErrorEaTableFull 277
@ -238,7 +238,7 @@
#define kNtErrorNotRedundantStorage 333
#define kNtErrorResidentFileNotSupported 334
#define kNtErrorCompressedFileNotSupported 335
#define kNtErrorDirectoryNotSupported 336 /* EISDIR */
#define kNtErrorDirectoryNotSupported 336
#define kNtErrorNotReadFromCopy 337
#define kNtErrorFtWriteFailure 338
#define kNtErrorFtDiScanRequired 339
@ -1102,7 +1102,7 @@
#define kNtErrorResourceTypeNotFound 1813
#define kNtErrorResourceNameNotFound 1814
#define kNtErrorResourceLangNotFound 1815
#define kNtErrorNotEnoughQuota 1816
#define kNtErrorNotEnoughQuota 1816 /* EDQUOT */
#define kNtErrorInvalidTime 1901
#define kNtErrorInvalidFormName 1902
#define kNtErrorInvalidFormSize 1903

15
libc/nt/kernel32/ExitThread.s Normal file
View file

@ -0,0 +1,15 @@
.include "o/libc/nt/codegen.inc"
.imp kernel32,__imp_ExitThread,ExitThread,0
.text.windows
ExitThread:
push %rbp
mov %rsp,%rbp
.profilable
mov %rdi,%rcx
sub $32,%rsp
call *__imp_ExitThread(%rip)
leave
ret
.endfn ExitThread,globl
.previous

1
libc/nt/master.sh
View file

@ -303,6 +303,7 @@ imp 'EnumerateLocalComputerNamesA' EnumerateLocalComputerNamesA kernel32 3
imp 'EraseTape' EraseTape kernel32 352
imp 'EscapeCommFunction' EscapeCommFunction kernel32 0
imp 'ExecuteUmsThread' ExecuteUmsThread kernel32 354
imp 'ExitThread' ExitThread kernel32 0 1
imp 'ExitProcess' ExitProcess kernel32 0 1 # a.k.a. RtlExitUserProcess
imp 'ExitVDM' ExitVDM kernel32 357
imp 'ExpandEnvironmentStrings' ExpandEnvironmentStringsW kernel32 0

10
libc/runtime/clone.c
View file

@ -87,13 +87,11 @@ privileged int clone(int (*f)(void *), void *stack, int flags, void *arg, ...) {
if (ax) return ax;
asm volatile("xor\t%%ebp,%%ebp\n\t"
"pop\t%%rdi\n\t"
"call\t%1"
: "=a"(ax)
: "r"(func)
: "memory");
asm volatile("syscall"
"call\t%0\n\t"
"xchg\t%%eax,%%edi\n\t"
"call\t_Exit1"
: /* no outputs */
: "a"(__NR_exit), "D"(ax)
: "r"(func)
: "memory");
unreachable;
} else if (IsWindows()) {

3
libc/runtime/getsymboltable.c
View file

@ -19,6 +19,7 @@
#include "libc/assert.h"
#include "libc/bits/bits.h"
#include "libc/bits/weaken.h"
#include "libc/calls/issandboxed.h"
#include "libc/calls/strace.internal.h"
#include "libc/macros.internal.h"
#include "libc/runtime/runtime.h"
@ -117,7 +118,7 @@ static struct SymbolTable *GetSymbolTableFromElf(void) {
struct SymbolTable *GetSymbolTable(void) {
int ft, st;
struct Zipos *z;
if (!g_symtab) {
if (!g_symtab && !__issandboxed) {
ft = g_ftrace, g_ftrace = 0;
st = __strace, __strace = 0;
if (weaken(__zipos_get) && (z = weaken(__zipos_get)())) {

16
libc/runtime/mmap.c
View file

@ -112,6 +112,14 @@ noasan static bool Automap(int n, int *res) {
}
}
noasan static size_t GetMemtrackSize(struct MemoryIntervals *mm) {
size_t i, n;
for (n = i = 0; i < mm->i; ++i) {
n += ((size_t)(mm->p[i].y - mm->p[i].x) + 1) << 16;
}
return n;
}
static noasan void *MapMemory(void *addr, size_t size, int prot, int flags,
int fd, int64_t off, int f, int x, int n) {
struct DirectMap dm;
@ -225,6 +233,7 @@ noasan void *mmap(void *addr, size_t size, int prot, int flags, int fd,
void *res;
char *p = addr;
struct DirectMap dm;
size_t virtualused, virtualneed;
int a, b, i, f, m, n, x;
if (UNLIKELY(!size)) {
STRACE("size=0");
@ -268,6 +277,13 @@ noasan void *mmap(void *addr, size_t size, int prot, int flags, int fd,
} else if (__isfdkind(fd, kFdZip)) {
STRACE("fd is zipos handle");
res = VIP(einval());
} else if (__virtualmax &&
(__builtin_add_overflow((virtualused = GetMemtrackSize(&_mmi)),
size, &virtualneed) ||
virtualneed > __virtualmax)) {
STRACE("%'zu size + %'zu inuse exceeds virtual memory limit %'zu", size,
virtualused, __virtualmax);
res = VIP(enomem());
} else {
if (fd == -1) {
size = ROUNDUP(size, FRAMESIZE);

2
libc/runtime/runtime.h
View file

@ -38,6 +38,7 @@ extern unsigned char *__relo_end[]; /* αpε */
extern uint8_t __zip_start[]; /* αpε */
extern uint8_t __zip_end[]; /* αpε */
extern bool ftrace_enabled;
extern size_t __virtualmax;
void mcount(void);
unsigned long getauxval(unsigned long);
@ -49,6 +50,7 @@ void _longjmp(jmp_buf, int) libcesque wontreturn paramsnonnull();
void exit(int) wontreturn;
void _exit(int) libcesque wontreturn;
void _Exit(int) libcesque wontreturn;
void _Exit1(int) libcesque wontreturn;
void quick_exit(int) wontreturn;
void abort(void) wontreturn noinstrument;
int __cxa_atexit(void *, void *, void *) libcesque;

4
libc/sock/recv.c
View file

@ -58,7 +58,7 @@ ssize_t recv(int fd, void *buf, size_t size, int flags) {
} else {
rc = ebadf();
}
STRACE("recv(%d, [%#.*hhs%s], %'zu, %#x) → %'ld% lm", fd, MAX(0, MIN(40, rc)),
buf, rc > 40 ? "..." : "", size, flags);
DATATRACE("recv(%d, [%#.*hhs%s], %'zu, %#x) → %'ld% lm", fd,
MAX(0, MIN(40, rc)), buf, rc > 40 ? "..." : "", size, flags);
return rc;
}

4
libc/sock/recvfrom.c
View file

@ -74,7 +74,7 @@ ssize_t recvfrom(int fd, void *buf, size_t size, uint32_t flags,
} else {
rc = ebadf();
}
STRACE("recvfrom(%d, [%#.*hhs%s], %'zu, %#x) → %'ld% lm", fd,
MAX(0, MIN(40, rc)), buf, rc > 40 ? "..." : "", size, flags, rc);
DATATRACE("recvfrom(%d, [%#.*hhs%s], %'zu, %#x) → %'ld% lm", fd,
MAX(0, MIN(40, rc)), buf, rc > 40 ? "..." : "", size, flags, rc);
return rc;
}

4
libc/sock/send.c
View file

@ -60,7 +60,7 @@ ssize_t send(int fd, const void *buf, size_t size, int flags) {
} else {
rc = ebadf();
}
STRACE("send(%d, %#.*hhs%s, %'zu, %#x) → %'ld% lm", fd, MAX(0, MIN(40, rc)),
buf, rc > 40 ? "..." : "", size, flags, rc);
DATATRACE("send(%d, %#.*hhs%s, %'zu, %#x) → %'ld% lm", fd,
MAX(0, MIN(40, rc)), buf, rc > 40 ? "..." : "", size, flags, rc);
return rc;
}

6
libc/sock/sendto.c
View file

@ -87,8 +87,8 @@ ssize_t sendto(int fd, const void *buf, size_t size, uint32_t flags,
rc = ebadf();
}
}
STRACE("sendto(%d, %#.*hhs%s, %'zu, %#x, %p, %u) → %'ld% lm", fd,
MAX(0, MIN(40, rc)), buf, rc > 40 ? "..." : "", size, flags, opt_addr,
addrsize, rc);
DATATRACE("sendto(%d, %#.*hhs%s, %'zu, %#x, %p, %u) → %'ld% lm", fd,
MAX(0, MIN(40, rc)), buf, rc > 40 ? "..." : "", size, flags,
opt_addr, addrsize, rc);
return rc;
}

2
libc/sysv/calls/chroot.s
View file

@ -1,2 +0,0 @@
.include "o/libc/sysv/macros.internal.inc"
.scall chroot,0x03d03d03d203d0a1,globl

2
libc/sysv/calls/prctl.s
View file

@ -1,2 +0,0 @@
.include "o/libc/sysv/macros.internal.inc"
.scall prctl,0xfffffffffffff09d,globl

2
libc/sysv/calls/seccomp.s
View file

@ -1,2 +0,0 @@
.include "o/libc/sysv/macros.internal.inc"
.scall seccomp,0xfffffffffffff13d,globl

2
libc/sysv/calls/sys_chroot.s Normal file
View file

@ -0,0 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_chroot,0x03d03d03d203d0a1,globl,hidden

119
libc/sysv/consts.sh
View file

@ -47,15 +47,15 @@ syscon errno ENOTDIR 20 20 20 20 20 3 # not a directory; unix co
syscon errno EISDIR 21 21 21 21 21 267 # is a a directory; unix consensus; kNtErrorDirectory; raised by acct(2), copy_file_range(2), execve(2), ioctl_ficlonerange(2), ioctl_fideduperange(2), open(2), read(2), rename(2), truncate(2), unlink(2)
syscon errno EINVAL 22 22 22 22 22 87 # invalid argument; unix consensus; kNtErrorInvalidParameter; raised by accept(2), access(2), add_key(2), adjtimex(2), arch_prctl(2), bdflush(2), bind(2), bpf(2), cacheflush(2), capget(2), chmod(2), chown(2), clock_getres(2), clock_nanosleep(2), clone(2), copy_file_range(2), create_module(2), dup(2), epoll_create(2), epoll_ctl(2), epoll_wait(2), eventfd(2), execve(2), execveat(2), fallocate(2), fanotify_init(2), fanotify_mark(2), fcntl(2), flock(2), futex(2), get_mempolicy(2), get_robust_list(2), getdents(2), getdomainname(2), getgroups(2), gethostname(2), getitimer(2), getpeername(2), getpriority(2), getrandom(2), getrlimit(2), getrusage(2), getsockname(2), getsockopt(2), gettimeofday(2), init_module(2), inotify_add_watch(2), inotify_init(2), inotify_rm_watch(2), io_cancel(2), io_destroy(2), io_getevents(2), io_setup(2), io_submit(2), ioctl(2), ioctl_console(2), ioctl_ficlonerange(2), ioctl_fideduperange(2), ioctl_getfsmap(2), ioctl_ns(2), ioctl_tty(2), ioctl_userfaultfd(2), ioperm(2), iopl(2), ioprio_set(2), kcmp(2), kexec_load(2), keyctl(2), kill(2), link(2), llseek(2), lookup_dcookie(2), lseek(2), madvise(2), mbind(2), membarrier(2), memfd_create(2), migrate_pages(2), mincore(2), mkdir(2), mknod(2), mlock(2), mmap(2), mmap2(2), modify_ldt(2), mount(2), move_pages(2), mprotect(2), mremap(2), msgctl(2), msgop(2), msync(2), nanosleep(2), open(2), open_by_handle_at(2), openat2(2), pciconfig_read(2), perf_event_open(2), personality(2), pidfd_getfd(2), pidfd_open(2), pidfd_send_signal(2), pipe(2), pivot_root(2), pkey_alloc(2), poll(2), posix_fadvise(2), prctl(2), process_vm_readv(2), ptrace(2), query_module(2), quotactl(2), read(2), readahead(2), readdir(2), readlink(2), readv(2), reboot(2), recv(2), recvmmsg(2), remap_file_pages(2), rename(2), request_key(2), rmdir(2), rt_sigqueueinfo(2), s390_guarded_storage(2), s390_pci_mmio_write(2), s390_runtime_instr(2), s390_sthyi(2), sched_get_priority_max(2), sched_rr_get_interval(2), sched_setaffinity(2), sched_setattr(2), sched_setparam(2), sched_setscheduler(2), seccomp(2), select(2), semctl(2), semget(2), semop(2), send(2), sendfile(2), set_mempolicy(2), set_thread_area(2), seteuid(2), setfsgid(2), setfsuid(2), setgid(2), setns(2), setpgid(2), setresuid(2), setreuid(2), setuid(2), shmctl(2), shmget(2), shmop(2), shutdown(2), sigaction(2), sigaltstack(2), signal(2), signalfd(2), sigprocmask(2), sigsuspend(2), sigwaitinfo(2), socket(2), splice(2), spu_create(2), spu_run(2), stat(2), statx(2), subpage_prot(2), swapon(2), sync_file_range(2), sysfs(2), syslog(2), tee(2), timer_create(2), timer_delete(2), timer_getoverrun(2), timer_settime(2), timerfd_create(2), tkill(2), truncate(2), umount(2), unlink(2), unshare(2), userfaultfd(2), ustat(2), utimensat(2), vmsplice(2), wait(2), write(2), unix(7), ip(7)
syscon errno ENFILE 23 23 23 23 23 331 # too many open files in system; unix consensus; kNtErrorTooManyDescriptors; raised by accept(2), acct(2), epoll_create(2), eventfd(2), execve(2), futex(2), inotify_init(2), memfd_create(2), mmap(2), open(2), pidfd_getfd(2), pidfd_open(2), pipe(2), shmget(2), signalfd(2), socket(2), socketpair(2), spu_create(2), swapon(2), timerfd_create(2), uselib(2), userfaultfd(2)
syscon errno EMFILE 24 24 24 24 24 336 # too many open files; unix consensus; kNtErrorTooManyOpenFiles; raised by accept(2), dup(2), epoll_create(2), eventfd(2), execve(2), fanotify_init(2), fcntl(2), inotify_init(2), memfd_create(2), mount(2), open(2), perf_event_open(2), pidfd_getfd(2), pidfd_open(2), pipe(2), signalfd(2), socket(2), socketpair(2), spu_create(2), timerfd_create(2)
syscon errno EMFILE 24 24 24 24 24 4 # too many open files; unix consensus; kNtErrorTooManyOpenFiles; raised by accept(2), dup(2), epoll_create(2), eventfd(2), execve(2), fanotify_init(2), fcntl(2), inotify_init(2), memfd_create(2), mount(2), open(2), perf_event_open(2), pidfd_getfd(2), pidfd_open(2), pipe(2), signalfd(2), socket(2), socketpair(2), spu_create(2), timerfd_create(2)
syscon errno ENOTTY 25 25 25 25 25 1118 # inappropriate i/o control operation; unix consensus; kNtErrorSerialNoDevice; raised by ioctl(2), ioctl_console(2), ioctl_fat(2), ioctl_ns(2), ioctl_tty(2)
syscon errno ETXTBSY 26 26 26 26 26 148 # won't open executable that's executing in write mode; try UnlockExecutable(); unix consensus; kNtErrorPathBusy; raised by access(2), copy_file_range(2), execve(2), fallocate(2), ioctl_ficlonerange(2), ioctl_fideduperange(2), mmap(2), open(2), truncate(2)
syscon errno EFBIG 27 27 27 27 27 223 # file too large; unix consensus; kNtErrorFileTooLarge; raised by copy_file_range(2), fallocate(2), init_module(2), open(2), semop(2), truncate(2), write(2)
syscon errno ENOSPC 28 28 28 28 28 39 # no space left on device; unix consensus; kNtErrorDiskFull; raised by copy_file_range(2), epoll_ctl(2), fallocate(2), fanotify_mark(2), fsync(2), inotify_add_watch(2), link(2), mkdir(2), mknod(2), msgget(2), open(2), perf_event_open(2), pkey_alloc(2), query_module(2), rename(2), semget(2), setxattr(2), shmget(2), spu_create(2), symlink(2), sync_file_range(2), write(2)
syscon errno EDQUOT 122 69 69 69 69 10069 # disk quota exceeded; bsd consensus; raised by add_key(2), keyctl(2), link(2), mkdir(2), mknod(2), open(2), rename(2), request_key(2), setxattr(2), symlink(2), write(2)
syscon errno EDQUOT 122 69 69 69 69 1816 # disk quota exceeded; bsd consensus; kNtErrorNotEnoughQuota; raised by add_key(2), keyctl(2), link(2), mkdir(2), mknod(2), open(2), rename(2), request_key(2), setxattr(2), symlink(2), write(2)
syscon errno ESPIPE 29 29 29 29 29 25 # invalid seek; unix consensus; kNtErrorSeek; raised by fallocate(2), lseek(2), posix_fadvise(2), sendfile(2), splice(2), sync_file_range(2)
syscon errno EROFS 30 30 30 30 30 6009 # read-only filesystem; unix consensus; kNtErrorFileReadOnly; raised by access(2), acct(2), bind(2), chmod(2), chown(2), link(2), mkdir(2), mknod(2), mount(2), open(2), rename(2), rmdir(2), symlink(2), truncate(2), unlink(2), utime(2), utimensat(2)
syscon errno EMLINK 31 31 31 31 31 4 # too many links; unix consensus; kNtErrorTooManyLinks; raised by link(2), mkdir(2), rename(2)
syscon errno EMLINK 31 31 31 31 31 1142 # too many links; unix consensus; kNtErrorTooManyLinks; raised by link(2), mkdir(2), rename(2)
syscon errno EPIPE 32 32 32 32 32 109 # broken pipe; unix consensus; kNtErrorBrokenPipe; raised by send(2), write(2), tcp(7), unix(7), ip(7)
syscon errno EDOM 33 33 33 33 33 33 # mathematics argument out of domain of function; bsd consensus; fudged on NT; returned by cos(3), fmod(3), log1p(3), sin(3), tan(3), tgamma(3)
syscon errno ERANGE 34 34 34 34 34 34 # result too large; bsd consensus; fudged on NT; raised by getxattr(2), listxattr(2), lookup_dcookie(2), prctl(2), quotactl(2), semctl(2), semop(2), setxattr(2)
@ -125,9 +125,9 @@ syscon errno EOWNERDEAD 130 105 96 94 97 0 # raised by pthread_co
syscon errno ENOTRECOVERABLE 131 104 95 93 98 0 # raised by pthread_cond_timedwait(3), pthread_mutex_consistent(3), pthread_mutex_getprioceiling(3), pthread_mutex_lock(3), pthread_mutex_timedlock(3), pthread_mutexattr_getrobust(3), pthread_mutexattr_setrobust(3)
syscon errno ENONET 64 0 0 0 0 0 # unilateral; raised by accept(2)
syscon errno ERESTART 85 -1 -1 -1 -3 0 # should only be seen in ptrace()
syscon errno ENODATA 61 96 0 0 89 232 # no message is available in xsi stream or named pipe is being closed; no data available; barely in posix; returned by ioctl; very close in spirit to EPIPE?
syscon errno ENOSR 63 98 0 90 90 0 # out of streams resources; something like EAGAIN; it's in POSIX; maybe some commercial UNIX returns it with openat, putmsg, putpmsg, posix_openpt, ioctl, open
syscon errno ENOSTR 60 99 0 0 91 0 # not a stream; returned by getmsg, putmsg, putpmsg, getpmsg
syscon errno ENODATA 61 96 0 0 89 232 # no message is available in xsi stream or named pipe is being closed; no data available; barely in posix; returned by ioctl; very close in spirit to EPIPE?
syscon errno EMULTIHOP 72 95 90 0 94 0 # barely in posix
syscon errno ENOLINK 67 97 91 0 95 0 # barely in posix
syscon errno ENOMEDIUM 123 0 0 85 0 0 # not posix; not documented
@ -187,6 +187,7 @@ syscon open O_CREAT 0x00000040 0x00000200 0x00000200 0x00000200 0x000002
syscon open O_EXCL 0x00000080 0x00000800 0x00000800 0x00000800 0x00000800 0x00000080 # bsd consensus & NT faked as Linux [SYNC libc/calls/open-nt.c]
syscon open O_TRUNC 0x00000200 0x00000400 0x00000400 0x00000400 0x00000400 0x00000200 # bsd consensus & NT faked as Linux [SYNC libc/calls/open-nt.c]
syscon open O_DIRECTORY 0x00010000 0x00100000 0x00020000 0x00020000 0x00200000 0x00010000 # useful hint on UNIX, but required on NT (see kNtFileFlagBackupSemantics) [SYNC libc/calls/open-nt.c]
syscon open O_NOFOLLOW 0x00020000 0x00000100 0x00000100 0x00000100 0x00000100 0x00020000 # bsd consensus; kNtFileFlagOpenReparsePoint
syscon open O_DIRECT 0x00004000 0 0x00010000 0 0x00080000 0x00004000 # kNtFileFlagNoBuffering [SYNC libc/calls/open-nt.c]
syscon open O_NDELAY 0x00000800 0x00000004 0x00000004 0x00000004 0x00000004 0x00000800 # kNtFileFlagWriteThrough [SYNC libc/calls/open-nt.c]
syscon open O_RANDOM 0 0 0 0 0 0x80000000 # kNtFileFlagRandomAccess [SYNC libc/calls/open-nt.c]
@ -198,7 +199,6 @@ syscon open O_TMPFILE 0x00410000 0 0 0 0 0x00410000 # Linux 3.11+ (
syscon open O_SPARSE 0 0 0 0 0 0 # wut
syscon open O_NONBLOCK 0x00000800 0x00000004 0x00000004 0x00000004 0x00000004 0x00000800 # bsd consensus
syscon open O_ASYNC 0x00002000 0x00000040 0x00000040 0x00000040 0x00000040 0 # bsd consensus
syscon open O_NOFOLLOW 0x00020000 0x00000100 0x00000100 0x00000100 0x00000100 0 # bsd consensus
syscon open O_NOFOLLOW_ANY 0 0x20000000 0 0 0 0 #
syscon open O_SYNC 0x00101000 0x00000080 0x00000080 0x00000080 0x00000080 0 # bsd consensus
syscon open O_NOCTTY 0x00000100 0x00020000 0x00008000 0x00008000 0x00008000 0 # used for remote viewing (default behavior on freebsd)
@ -512,7 +512,7 @@ syscon rlimit RLIMIT_RSS 5 5 5 5 5 127 # max physical memory size
syscon rlimit RLIMIT_NPROC 6 7 7 7 7 127 # max number of processes; see fork()→EAGAIN; bsd consensus
syscon rlimit RLIMIT_NOFILE 7 8 8 8 8 127 # max number of open files; see accept()→EMFILE/ENFILE; bsd consensus
syscon rlimit RLIMIT_MEMLOCK 8 6 6 6 6 127 # max locked-in-memory address space; bsd consensus
syscon rlimit RLIMIT_AS 9 5 10 127 10 127 # max virtual memory size in bytes; this one actually works; we set this to RLIMIT_DATA on OpenBSD
syscon rlimit RLIMIT_AS 9 5 10 2 10 9 # max virtual memory size in bytes; this one actually works; fudged as RLIMIT_DATA on OpenBSD
syscon rlimit RLIMIT_LOCKS 10 127 127 127 127 127 # max flock() / fcntl() locks; bsd consensus
syscon rlimit RLIMIT_SIGPENDING 11 127 127 127 127 127 # max sigqueue() can enqueue; bsd consensus
syscon rlimit RLIMIT_MSGQUEUE 12 127 127 127 127 127 # meh posix message queues; bsd consensus
@ -953,109 +953,6 @@ syscon iproto IPPROTO_BEETPH 94 0 0 0 0 0
syscon iproto IPPROTO_COMP 108 0 0 0 0 0
syscon iproto IPPROTO_DCCP 33 0 0 0 0 0
syscon pr PR_SET_PTRACER_ANY -1 0 0 0 0 0
syscon pr PR_ENDIAN_BIG 0 0 0 0 0 0 # consensus
syscon pr PR_FP_EXC_DISABLED 0 0 0 0 0 0 # consensus
syscon pr PR_MCE_KILL_CLEAR 0 0 0 0 0 0 # consensus
syscon pr PR_MCE_KILL_LATE 0 0 0 0 0 0 # consensus
syscon pr PR_SPEC_NOT_AFFECTED 0 0 0 0 0 0 # consensus
syscon pr PR_SPEC_STORE_BYPASS 0 0 0 0 0 0 # consensus
syscon pr PR_TIMING_STATISTICAL 0 0 0 0 0 0 # consensus
syscon pr PR_CAP_AMBIENT_IS_SET 1 0 0 0 0 0
syscon pr PR_ENDIAN_LITTLE 1 0 0 0 0 0
syscon pr PR_FPEMU_NOPRINT 1 0 0 0 0 0
syscon pr PR_FP_EXC_NONRECOV 1 0 0 0 0 0
syscon pr PR_FP_MODE_FR 1 0 0 0 0 0
syscon pr PR_MCE_KILL_EARLY 1 0 0 0 0 0
syscon pr PR_MCE_KILL_SET 1 0 0 0 0 0
syscon pr PR_SET_MM_START_CODE 1 0 0 0 0 0
syscon pr PR_SET_PDEATHSIG 1 0 0 0 0 0
syscon pr PR_SPEC_PRCTL 1 0 0 0 0 0
syscon pr PR_TIMING_TIMESTAMP 1 0 0 0 0 0
syscon pr PR_TSC_ENABLE 1 0 0 0 0 0
syscon pr PR_UNALIGN_NOPRINT 1 0 0 0 0 0
syscon pr PR_CAP_AMBIENT_RAISE 2 0 0 0 0 0
syscon pr PR_ENDIAN_PPC_LITTLE 2 0 0 0 0 0
syscon pr PR_FPEMU_SIGFPE 2 0 0 0 0 0
syscon pr PR_FP_EXC_ASYNC 2 0 0 0 0 0
syscon pr PR_FP_MODE_FRE 2 0 0 0 0 0
syscon pr PR_GET_PDEATHSIG 2 0 0 0 0 0
syscon pr PR_MCE_KILL_DEFAULT 2 0 0 0 0 0
syscon pr PR_SET_MM_END_CODE 2 0 0 0 0 0
syscon pr PR_SPEC_ENABLE 2 0 0 0 0 0
syscon pr PR_TSC_SIGSEGV 2 0 0 0 0 0
syscon pr PR_UNALIGN_SIGBUS 2 0 0 0 0 0
syscon pr PR_CAP_AMBIENT_LOWER 3 0 0 0 0 0
syscon pr PR_FP_EXC_PRECISE 3 0 0 0 0 0
syscon pr PR_GET_DUMPABLE 3 0 0 0 0 0
syscon pr PR_SET_MM_START_DATA 3 0 0 0 0 0
syscon pr PR_CAP_AMBIENT_CLEAR_ALL 4 0 0 0 0 0
syscon pr PR_SET_DUMPABLE 4 0 0 0 0 0
syscon pr PR_SET_MM_END_DATA 4 0 0 0 0 0
syscon pr PR_SPEC_DISABLE 4 0 0 0 0 0
syscon pr PR_GET_UNALIGN 5 0 0 0 0 0
syscon pr PR_SET_MM_START_STACK 5 0 0 0 0 0
syscon pr PR_SET_MM_START_BRK 6 0 0 0 0 0
syscon pr PR_SET_UNALIGN 6 0 0 0 0 0
syscon pr PR_GET_KEEPCAPS 7 0 0 0 0 0
syscon pr PR_SET_MM_BRK 7 0 0 0 0 0
syscon pr PR_SET_KEEPCAPS 8 0 0 0 0 0
syscon pr PR_SET_MM_ARG_START 8 0 0 0 0 0
syscon pr PR_SPEC_FORCE_DISABLE 8 0 0 0 0 0
syscon pr PR_GET_FPEMU 9 0 0 0 0 0
syscon pr PR_SET_MM_ARG_END 9 0 0 0 0 0
syscon pr PR_SET_FPEMU 10 0 0 0 0 0
syscon pr PR_SET_MM_ENV_START 10 0 0 0 0 0
syscon pr PR_GET_FPEXC 11 0 0 0 0 0
syscon pr PR_SET_MM_ENV_END 11 0 0 0 0 0
syscon pr PR_SET_FPEXC 12 0 0 0 0 0
syscon pr PR_SET_MM_AUXV 12 0 0 0 0 0
syscon pr PR_GET_TIMING 13 0 0 0 0 0
syscon pr PR_SET_MM_EXE_FILE 13 0 0 0 0 0
syscon pr PR_SET_MM_MAP 14 0 0 0 0 0
syscon pr PR_SET_TIMING 14 0 0 0 0 0
syscon pr PR_SET_MM_MAP_SIZE 15 0 0 0 0 0
syscon pr PR_SET_NAME 15 0 0 0 0 0
syscon pr PR_GET_NAME 0x10 0 0 0 0 0
syscon pr PR_GET_ENDIAN 19 0 0 0 0 0
syscon pr PR_SET_ENDIAN 20 0 0 0 0 0
syscon pr PR_GET_SECCOMP 21 0 0 0 0 0
syscon pr PR_SET_SECCOMP 22 0 0 0 0 0
syscon pr PR_CAPBSET_READ 23 0 0 0 0 0
syscon pr PR_CAPBSET_DROP 24 0 0 0 0 0
syscon pr PR_GET_TSC 25 0 0 0 0 0
syscon pr PR_SET_TSC 26 0 0 0 0 0
syscon pr PR_GET_SECUREBITS 27 0 0 0 0 0
syscon pr PR_SET_SECUREBITS 28 0 0 0 0 0
syscon pr PR_SET_TIMERSLACK 29 0 0 0 0 0
syscon pr PR_GET_TIMERSLACK 30 0 0 0 0 0
syscon pr PR_TASK_PERF_EVENTS_DISABLE 31 0 0 0 0 0
syscon pr PR_TASK_PERF_EVENTS_ENABLE 0x20 0 0 0 0 0
syscon pr PR_MCE_KILL 33 0 0 0 0 0
syscon pr PR_MCE_KILL_GET 34 0 0 0 0 0
syscon pr PR_SET_MM 35 0 0 0 0 0
syscon pr PR_SET_CHILD_SUBREAPER 36 0 0 0 0 0
syscon pr PR_GET_CHILD_SUBREAPER 37 0 0 0 0 0
syscon pr PR_SET_NO_NEW_PRIVS 38 0 0 0 0 0
syscon pr PR_GET_NO_NEW_PRIVS 39 0 0 0 0 0
syscon pr PR_GET_TID_ADDRESS 40 0 0 0 0 0
syscon pr PR_SET_THP_DISABLE 41 0 0 0 0 0
syscon pr PR_GET_THP_DISABLE 42 0 0 0 0 0
syscon pr PR_MPX_ENABLE_MANAGEMENT 43 0 0 0 0 0
syscon pr PR_MPX_DISABLE_MANAGEMENT 44 0 0 0 0 0
syscon pr PR_SET_FP_MODE 45 0 0 0 0 0
syscon pr PR_GET_FP_MODE 46 0 0 0 0 0
syscon pr PR_CAP_AMBIENT 47 0 0 0 0 0
syscon pr PR_GET_SPECULATION_CTRL 52 0 0 0 0 0
syscon pr PR_SET_SPECULATION_CTRL 53 0 0 0 0 0
syscon pr PR_FP_EXC_SW_ENABLE 0x80 0 0 0 0 0
syscon pr PR_FP_EXC_DIV 0x010000 0 0 0 0 0
syscon pr PR_FP_EXC_OVF 0x020000 0 0 0 0 0
syscon pr PR_FP_EXC_UND 0x040000 0 0 0 0 0
syscon pr PR_FP_EXC_RES 0x080000 0 0 0 0 0
syscon pr PR_FP_EXC_INV 0x100000 0 0 0 0 0
syscon pr PR_SET_PTRACER 0x59616d61 0 0 0 0 0
syscon sio SIOCADDMULTI 0x8931 0x80206931 0x80206931 0x80206931 0x80206931 0 # bsd consensus
syscon sio SIOCATMARK 0x8905 0x40047307 0x40047307 0x40047307 0x40047307 0 # bsd consensus
syscon sio SIOCDELMULTI 0x8932 0x80206932 0x80206932 0x80206932 0x80206932 0 # bsd consensus
@ -1987,8 +1884,8 @@ syscon misc FALLOC_FL_UNSHARE_RANGE 0x40 -1 -1 -1 -1 -1 # bsd cons
# System Call Numbers.
#
# group name GNU/Systemd XNU's Not UNIX! FreeBSD OpenBSD NetBSD The New Technology
syscon nr __NR_exit 0x003c 0x2000001 0x0001 0x0001 0x001 0xfff
syscon nr __NR_exit_group 0x00e7 0x2000001 0x0001 0x0001 0x001 0xfff
syscon nr __NR_exit 0x003c 0x2000169 0x01af 0x012e 0x136 0xfff # __bsdthread_terminate() on XNU, thr_exit() on FreeBSD, sys___threxit() on OpenBSD, __lwp_exit() on NetBSD
syscon nr __NR_exit_group 0x00e7 0x2000001 0x0001 0x0001 0x001 0xfff
syscon nr __NR_read 0x0000 0x2000003 0x0003 0x0003 0x003 0xfff
syscon nr __NR_write 0x0001 0x2000004 0x0004 0x0004 0x004 0xfff
syscon nr __NR_open 0x0002 0x2000005 0x0005 0x0005 0x005 0xfff

2
libc/sysv/consts/EDQUOT.S
View file

@ -1,2 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon errno,EDQUOT,122,69,69,69,69,10069
.syscon errno,EDQUOT,122,69,69,69,69,1816

2
libc/sysv/consts/EMFILE.S
View file

@ -1,2 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon errno,EMFILE,24,24,24,24,24,336
.syscon errno,EMFILE,24,24,24,24,24,4

2
libc/sysv/consts/EMLINK.S
View file

@ -1,2 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon errno,EMLINK,31,31,31,31,31,4
.syscon errno,EMLINK,31,31,31,31,31,1142

2
libc/sysv/consts/O_NOFOLLOW.S
View file

@ -1,2 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon open,O_NOFOLLOW,0x00020000,0x00000100,0x00000100,0x00000100,0x00000100,0
.syscon open,O_NOFOLLOW,0x00020000,0x00000100,0x00000100,0x00000100,0x00000100,0x00020000

2
libc/sysv/consts/PR_CAPBSET_DROP.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_CAPBSET_DROP,24,0,0,0,0,0

2
libc/sysv/consts/PR_CAPBSET_READ.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_CAPBSET_READ,23,0,0,0,0,0

2
libc/sysv/consts/PR_CAP_AMBIENT.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_CAP_AMBIENT,47,0,0,0,0,0

2
libc/sysv/consts/PR_CAP_AMBIENT_CLEAR_ALL.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_CAP_AMBIENT_CLEAR_ALL,4,0,0,0,0,0

2
libc/sysv/consts/PR_CAP_AMBIENT_IS_SET.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_CAP_AMBIENT_IS_SET,1,0,0,0,0,0

2
libc/sysv/consts/PR_CAP_AMBIENT_LOWER.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_CAP_AMBIENT_LOWER,3,0,0,0,0,0

2
libc/sysv/consts/PR_CAP_AMBIENT_RAISE.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_CAP_AMBIENT_RAISE,2,0,0,0,0,0

2
libc/sysv/consts/PR_ENDIAN_BIG.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_ENDIAN_BIG,0,0,0,0,0,0

2
libc/sysv/consts/PR_ENDIAN_LITTLE.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_ENDIAN_LITTLE,1,0,0,0,0,0

2
libc/sysv/consts/PR_ENDIAN_PPC_LITTLE.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_ENDIAN_PPC_LITTLE,2,0,0,0,0,0

2
libc/sysv/consts/PR_FPEMU_NOPRINT.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FPEMU_NOPRINT,1,0,0,0,0,0

2
libc/sysv/consts/PR_FPEMU_SIGFPE.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FPEMU_SIGFPE,2,0,0,0,0,0

2
libc/sysv/consts/PR_FP_EXC_ASYNC.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FP_EXC_ASYNC,2,0,0,0,0,0

2
libc/sysv/consts/PR_FP_EXC_DISABLED.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FP_EXC_DISABLED,0,0,0,0,0,0

2
libc/sysv/consts/PR_FP_EXC_DIV.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FP_EXC_DIV,0x010000,0,0,0,0,0

2
libc/sysv/consts/PR_FP_EXC_INV.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FP_EXC_INV,0x100000,0,0,0,0,0

2
libc/sysv/consts/PR_FP_EXC_NONRECOV.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FP_EXC_NONRECOV,1,0,0,0,0,0

2
libc/sysv/consts/PR_FP_EXC_OVF.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FP_EXC_OVF,0x020000,0,0,0,0,0

2
libc/sysv/consts/PR_FP_EXC_PRECISE.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FP_EXC_PRECISE,3,0,0,0,0,0

2
libc/sysv/consts/PR_FP_EXC_RES.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FP_EXC_RES,0x080000,0,0,0,0,0

2
libc/sysv/consts/PR_FP_EXC_SW_ENABLE.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FP_EXC_SW_ENABLE,0x80,0,0,0,0,0

2
libc/sysv/consts/PR_FP_EXC_UND.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FP_EXC_UND,0x040000,0,0,0,0,0

2
libc/sysv/consts/PR_FP_MODE_FR.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FP_MODE_FR,1,0,0,0,0,0

2
libc/sysv/consts/PR_FP_MODE_FRE.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_FP_MODE_FRE,2,0,0,0,0,0

2
libc/sysv/consts/PR_GET_CHILD_SUBREAPER.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_CHILD_SUBREAPER,37,0,0,0,0,0

2
libc/sysv/consts/PR_GET_DUMPABLE.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_DUMPABLE,3,0,0,0,0,0

2
libc/sysv/consts/PR_GET_ENDIAN.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_ENDIAN,19,0,0,0,0,0

2
libc/sysv/consts/PR_GET_FPEMU.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_FPEMU,9,0,0,0,0,0

2
libc/sysv/consts/PR_GET_FPEXC.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_FPEXC,11,0,0,0,0,0

2
libc/sysv/consts/PR_GET_FP_MODE.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_FP_MODE,46,0,0,0,0,0

2
libc/sysv/consts/PR_GET_KEEPCAPS.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_KEEPCAPS,7,0,0,0,0,0

2
libc/sysv/consts/PR_GET_NAME.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_NAME,0x10,0,0,0,0,0

2
libc/sysv/consts/PR_GET_NO_NEW_PRIVS.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_NO_NEW_PRIVS,39,0,0,0,0,0

2
libc/sysv/consts/PR_GET_PDEATHSIG.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_PDEATHSIG,2,0,0,0,0,0

2
libc/sysv/consts/PR_GET_SECCOMP.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_SECCOMP,21,0,0,0,0,0

2
libc/sysv/consts/PR_GET_SECUREBITS.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_SECUREBITS,27,0,0,0,0,0

2
libc/sysv/consts/PR_GET_SPECULATION_CTRL.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_SPECULATION_CTRL,52,0,0,0,0,0

2
libc/sysv/consts/PR_GET_THP_DISABLE.S
View file

@ -1,2 +0,0 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon pr,PR_GET_THP_DISABLE,42,0,0,0,0,0

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