660 lines
15 KiB
Go
660 lines
15 KiB
Go
// Copyright 2020 The Libc Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package libc // import "modernc.org/libc"
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import (
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"os"
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"strings"
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gotime "time"
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"unicode"
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"unsafe"
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"golang.org/x/sys/unix"
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"modernc.org/libc/errno"
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"modernc.org/libc/fcntl"
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"modernc.org/libc/signal"
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"modernc.org/libc/stdio"
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"modernc.org/libc/sys/types"
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"modernc.org/libc/time"
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"modernc.org/libc/wctype"
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)
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var (
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startTime = gotime.Now() // For clock(3)
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)
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// int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact);
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func Xsigaction(t *TLS, signum int32, act, oldact uintptr) int32 {
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// musl/arch/x86_64/ksigaction.h
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//
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// struct k_sigaction {
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// void (*handler)(int);
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// unsigned long flags;
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// void (*restorer)(void);
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// unsigned mask[2];
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// };
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type k_sigaction struct {
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handler uintptr
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flags ulong
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restorer uintptr
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mask [2]uint32
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}
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var kact, koldact uintptr
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if act != 0 {
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sz := int(unsafe.Sizeof(k_sigaction{}))
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kact = t.Alloc(sz)
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defer t.Free(sz)
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*(*k_sigaction)(unsafe.Pointer(kact)) = k_sigaction{
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handler: (*signal.Sigaction)(unsafe.Pointer(act)).F__sigaction_handler.Fsa_handler,
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flags: ulong((*signal.Sigaction)(unsafe.Pointer(act)).Fsa_flags),
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restorer: (*signal.Sigaction)(unsafe.Pointer(act)).Fsa_restorer,
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}
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Xmemcpy(t, kact+unsafe.Offsetof(k_sigaction{}.mask), act+unsafe.Offsetof(signal.Sigaction{}.Fsa_mask), types.Size_t(unsafe.Sizeof(k_sigaction{}.mask)))
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}
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if oldact != 0 {
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panic(todo(""))
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}
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if _, _, err := unix.Syscall6(unix.SYS_RT_SIGACTION, uintptr(signum), kact, koldact, unsafe.Sizeof(k_sigaction{}.mask), 0, 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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if oldact != 0 {
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panic(todo(""))
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}
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return 0
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}
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// int fcntl(int fd, int cmd, ... /* arg */ );
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func Xfcntl64(t *TLS, fd, cmd int32, args uintptr) int32 {
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var arg uintptr
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if args != 0 {
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arg = *(*uintptr)(unsafe.Pointer(args))
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}
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if cmd == fcntl.F_SETFL {
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arg |= unix.O_LARGEFILE
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}
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n, _, err := unix.Syscall(unix.SYS_FCNTL, uintptr(fd), uintptr(cmd), arg)
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if err != 0 {
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// if dmesgs {
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// dmesg("%v: fd %v cmd %v", origin(1), fcntlCmdStr(fd), cmd)
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// }
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: %d %s %#x: %d", origin(1), fd, fcntlCmdStr(cmd), arg, n)
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// }
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return int32(n)
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}
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// int lstat(const char *pathname, struct stat *statbuf);
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func Xlstat64(t *TLS, pathname, statbuf uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_LSTAT, pathname, statbuf, 0); err != 0 {
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// if dmesgs {
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// dmesg("%v: %q: %v", origin(1), GoString(pathname), err)
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// }
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: %q: ok", origin(1), GoString(pathname))
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// }
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return 0
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}
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// int stat(const char *pathname, struct stat *statbuf);
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func Xstat64(t *TLS, pathname, statbuf uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_STAT, pathname, statbuf, 0); err != 0 {
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// if dmesgs {
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// dmesg("%v: %q: %v", origin(1), GoString(pathname), err)
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// }
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: %q: ok", origin(1), GoString(pathname))
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// }
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return 0
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}
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// int fstat(int fd, struct stat *statbuf);
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func Xfstat64(t *TLS, fd int32, statbuf uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_FSTAT, uintptr(fd), statbuf, 0); err != 0 {
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// if dmesgs {
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// dmesg("%v: fd %d: %v", origin(1), fd, err)
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// }
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: %d size %#x: ok\n%+v", origin(1), fd, (*stat.Stat)(unsafe.Pointer(statbuf)).Fst_size, (*stat.Stat)(unsafe.Pointer(statbuf)))
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// }
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return 0
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}
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func Xmmap(t *TLS, addr uintptr, length types.Size_t, prot, flags, fd int32, offset types.Off_t) uintptr {
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return Xmmap64(t, addr, length, prot, flags, fd, offset)
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}
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// void *mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset);
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func Xmmap64(t *TLS, addr uintptr, length types.Size_t, prot, flags, fd int32, offset types.Off_t) uintptr {
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data, _, err := unix.Syscall6(unix.SYS_MMAP, addr, uintptr(length), uintptr(prot), uintptr(flags), uintptr(fd), uintptr(offset))
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if err != 0 {
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// if dmesgs {
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// dmesg("%v: %v", origin(1), err)
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// }
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t.setErrno(err)
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return ^uintptr(0) // (void*)-1
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}
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// if dmesgs {
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// dmesg("%v: %#x", origin(1), data)
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// }
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return data
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}
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// void *mremap(void *old_address, size_t old_size, size_t new_size, int flags, ... /* void *new_address */);
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func Xmremap(t *TLS, old_address uintptr, old_size, new_size types.Size_t, flags int32, args uintptr) uintptr {
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var arg uintptr
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if args != 0 {
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arg = *(*uintptr)(unsafe.Pointer(args))
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}
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data, _, err := unix.Syscall6(unix.SYS_MREMAP, old_address, uintptr(old_size), uintptr(new_size), uintptr(flags), arg, 0)
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if err != 0 {
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// if dmesgs {
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// dmesg("%v: %v", origin(1), err)
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// }
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t.setErrno(err)
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return ^uintptr(0) // (void*)-1
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}
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// if dmesgs {
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// dmesg("%v: %#x", origin(1), data)
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// }
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return data
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}
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// int ftruncate(int fd, off_t length);
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func Xftruncate64(t *TLS, fd int32, length types.Off_t) int32 {
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if _, _, err := unix.Syscall(unix.SYS_FTRUNCATE, uintptr(fd), uintptr(length), 0); err != 0 {
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// if dmesgs {
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// dmesg("%v: fd %d: %v", origin(1), fd, err)
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// }
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: %d %#x: ok", origin(1), fd, length)
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// }
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return 0
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}
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// off64_t lseek64(int fd, off64_t offset, int whence);
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func Xlseek64(t *TLS, fd int32, offset types.Off_t, whence int32) types.Off_t {
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n, _, err := unix.Syscall(unix.SYS_LSEEK, uintptr(fd), uintptr(offset), uintptr(whence))
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if err != 0 {
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// if dmesgs {
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// dmesg("%v: fd %v, off %#x, whence %v: %v", origin(1), fd, offset, whenceStr(whence), err)
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// }
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: fd %v, off %#x, whence %v: %#x", origin(1), fd, offset, whenceStr(whence), n)
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// }
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return types.Off_t(n)
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}
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// int utime(const char *filename, const struct utimbuf *times);
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func Xutime(t *TLS, filename, times uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_UTIME, filename, times, 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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return 0
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}
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// unsigned int alarm(unsigned int seconds);
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func Xalarm(t *TLS, seconds uint32) uint32 {
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n, _, err := unix.Syscall(unix.SYS_ALARM, uintptr(seconds), 0, 0)
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if err != 0 {
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panic(todo(""))
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}
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return uint32(n)
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}
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// time_t time(time_t *tloc);
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func Xtime(t *TLS, tloc uintptr) types.Time_t {
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n, _, err := unix.Syscall(unix.SYS_TIME, tloc, 0, 0)
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if err != 0 {
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t.setErrno(err)
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return types.Time_t(-1)
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}
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if tloc != 0 {
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*(*types.Time_t)(unsafe.Pointer(tloc)) = types.Time_t(n)
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}
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return types.Time_t(n)
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}
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// int getrlimit(int resource, struct rlimit *rlim);
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func Xgetrlimit64(t *TLS, resource int32, rlim uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_GETRLIMIT, uintptr(resource), uintptr(rlim), 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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return 0
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}
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// int mkdir(const char *path, mode_t mode);
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func Xmkdir(t *TLS, path uintptr, mode types.Mode_t) int32 {
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if _, _, err := unix.Syscall(unix.SYS_MKDIR, path, uintptr(mode), 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: %q: ok", origin(1), GoString(path))
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// }
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return 0
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}
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// int symlink(const char *target, const char *linkpath);
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func Xsymlink(t *TLS, target, linkpath uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_SYMLINK, target, linkpath, 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: %q %q: ok", origin(1), GoString(target), GoString(linkpath))
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// }
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return 0
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}
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// int chmod(const char *pathname, mode_t mode)
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func Xchmod(t *TLS, pathname uintptr, mode types.Mode_t) int32 {
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if _, _, err := unix.Syscall(unix.SYS_CHMOD, pathname, uintptr(mode), 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: %q %#o: ok", origin(1), GoString(pathname), mode)
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// }
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return 0
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}
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// int utimes(const char *filename, const struct timeval times[2]);
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func Xutimes(t *TLS, filename, times uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_UTIMES, filename, times, 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: %q: ok", origin(1), GoString(filename))
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// }
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return 0
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}
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// int unlink(const char *pathname);
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func Xunlink(t *TLS, pathname uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_UNLINK, pathname, 0, 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: %q: ok", origin(1), GoString(pathname))
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// }
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return 0
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}
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// int access(const char *pathname, int mode);
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func Xaccess(t *TLS, pathname uintptr, mode int32) int32 {
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if _, _, err := unix.Syscall(unix.SYS_ACCESS, pathname, uintptr(mode), 0); err != 0 {
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// if dmesgs {
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// dmesg("%v: %q: %v", origin(1), GoString(pathname), err)
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// }
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: %q %#o: ok", origin(1), GoString(pathname), mode)
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// }
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return 0
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}
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// int rmdir(const char *pathname);
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func Xrmdir(t *TLS, pathname uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_RMDIR, pathname, 0, 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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// if dmesgs {
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// dmesg("%v: %q: ok", origin(1), GoString(pathname))
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// }
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return 0
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}
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// int rename(const char *oldpath, const char *newpath);
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func Xrename(t *TLS, oldpath, newpath uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_RENAME, oldpath, newpath, 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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return 0
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}
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// int mknod(const char *pathname, mode_t mode, dev_t dev);
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func Xmknod(t *TLS, pathname uintptr, mode types.Mode_t, dev types.Dev_t) int32 {
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if _, _, err := unix.Syscall(unix.SYS_MKNOD, pathname, uintptr(mode), uintptr(dev)); err != 0 {
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t.setErrno(err)
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return -1
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}
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return 0
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}
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// int chown(const char *pathname, uid_t owner, gid_t group);
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func Xchown(t *TLS, pathname uintptr, owner types.Uid_t, group types.Gid_t) int32 {
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if _, _, err := unix.Syscall(unix.SYS_CHOWN, pathname, uintptr(owner), uintptr(group)); err != 0 {
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t.setErrno(err)
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return -1
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}
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return 0
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}
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// int link(const char *oldpath, const char *newpath);
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func Xlink(t *TLS, oldpath, newpath uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_LINK, oldpath, newpath, 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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return 0
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}
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// int pipe(int pipefd[2]);
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func Xpipe(t *TLS, pipefd uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_PIPE, pipefd, 0, 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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return 0
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}
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// int dup2(int oldfd, int newfd);
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func Xdup2(t *TLS, oldfd, newfd int32) int32 {
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n, _, err := unix.Syscall(unix.SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
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if err != 0 {
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t.setErrno(err)
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return -1
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}
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return int32(n)
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}
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// ssize_t readlink(const char *restrict path, char *restrict buf, size_t bufsize);
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func Xreadlink(t *TLS, path, buf uintptr, bufsize types.Size_t) types.Ssize_t {
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n, _, err := unix.Syscall(unix.SYS_READLINK, path, buf, uintptr(bufsize))
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if err != 0 {
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t.setErrno(err)
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return -1
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}
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return types.Ssize_t(n)
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}
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// FILE *fopen64(const char *pathname, const char *mode);
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func Xfopen64(t *TLS, pathname, mode uintptr) uintptr {
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m := strings.ReplaceAll(GoString(mode), "b", "")
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var flags int
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switch m {
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case "r":
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flags = os.O_RDONLY
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case "r+":
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flags = os.O_RDWR
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case "w":
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flags = os.O_WRONLY | os.O_CREATE | os.O_TRUNC
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case "w+":
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flags = os.O_RDWR | os.O_CREATE | os.O_TRUNC
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case "a":
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flags = os.O_WRONLY | os.O_CREATE | os.O_APPEND
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case "a+":
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flags = os.O_RDWR | os.O_CREATE | os.O_APPEND
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default:
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panic(m)
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}
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//TODO- flags |= fcntl.O_LARGEFILE
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fd, _, err := unix.Syscall(unix.SYS_OPEN, pathname, uintptr(flags|unix.O_LARGEFILE), 0666)
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if err != 0 {
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t.setErrno(err)
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return 0
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}
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if p := newFile(t, int32(fd)); p != 0 {
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return p
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}
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Xclose(t, int32(fd))
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t.setErrno(errno.ENOMEM)
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return 0
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}
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// int iswspace(wint_t wc);
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func Xiswspace(t *TLS, wc wctype.Wint_t) int32 {
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return Bool32(unicode.IsSpace(rune(wc)))
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}
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// int iswalnum(wint_t wc);
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func Xiswalnum(t *TLS, wc wctype.Wint_t) int32 {
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return Bool32(unicode.IsLetter(rune(wc)) || unicode.IsNumber(rune(wc)))
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}
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// int setrlimit(int resource, const struct rlimit *rlim);
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func Xsetrlimit64(t *TLS, resource int32, rlim uintptr) int32 {
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if _, _, err := unix.Syscall(unix.SYS_SETRLIMIT, uintptr(resource), uintptr(rlim), 0); err != 0 {
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t.setErrno(err)
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return -1
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}
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return 0
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}
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func AtomicLoadPInt8(addr uintptr) (val int8) {
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return int8(a_load_8(addr))
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}
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func AtomicLoadPInt16(addr uintptr) (val int16) {
|
|
return int16(a_load_16(addr))
|
|
}
|
|
|
|
func AtomicLoadPUint8(addr uintptr) byte {
|
|
return byte(a_load_8(addr))
|
|
}
|
|
|
|
func AtomicLoadPUint16(addr uintptr) uint16 {
|
|
return uint16(a_load_16(addr))
|
|
}
|
|
|
|
func AtomicLoadNUint8(ptr uintptr, memorder int32) uint8 {
|
|
return byte(a_load_8(ptr))
|
|
}
|
|
|
|
var _table1 = [384]int32{
|
|
129: int32(1),
|
|
130: int32(2),
|
|
131: int32(3),
|
|
132: int32(4),
|
|
133: int32(5),
|
|
134: int32(6),
|
|
135: int32(7),
|
|
136: int32(8),
|
|
137: int32(9),
|
|
138: int32(10),
|
|
139: int32(11),
|
|
140: int32(12),
|
|
141: int32(13),
|
|
142: int32(14),
|
|
143: int32(15),
|
|
144: int32(16),
|
|
145: int32(17),
|
|
146: int32(18),
|
|
147: int32(19),
|
|
148: int32(20),
|
|
149: int32(21),
|
|
150: int32(22),
|
|
151: int32(23),
|
|
152: int32(24),
|
|
153: int32(25),
|
|
154: int32(26),
|
|
155: int32(27),
|
|
156: int32(28),
|
|
157: int32(29),
|
|
158: int32(30),
|
|
159: int32(31),
|
|
160: int32(32),
|
|
161: int32(33),
|
|
162: int32(34),
|
|
163: int32(35),
|
|
164: int32(36),
|
|
165: int32(37),
|
|
166: int32(38),
|
|
167: int32(39),
|
|
168: int32(40),
|
|
169: int32(41),
|
|
170: int32(42),
|
|
171: int32(43),
|
|
172: int32(44),
|
|
173: int32(45),
|
|
174: int32(46),
|
|
175: int32(47),
|
|
176: int32(48),
|
|
177: int32(49),
|
|
178: int32(50),
|
|
179: int32(51),
|
|
180: int32(52),
|
|
181: int32(53),
|
|
182: int32(54),
|
|
183: int32(55),
|
|
184: int32(56),
|
|
185: int32(57),
|
|
186: int32(58),
|
|
187: int32(59),
|
|
188: int32(60),
|
|
189: int32(61),
|
|
190: int32(62),
|
|
191: int32(63),
|
|
192: int32(64),
|
|
193: int32('a'),
|
|
194: int32('b'),
|
|
195: int32('c'),
|
|
196: int32('d'),
|
|
197: int32('e'),
|
|
198: int32('f'),
|
|
199: int32('g'),
|
|
200: int32('h'),
|
|
201: int32('i'),
|
|
202: int32('j'),
|
|
203: int32('k'),
|
|
204: int32('l'),
|
|
205: int32('m'),
|
|
206: int32('n'),
|
|
207: int32('o'),
|
|
208: int32('p'),
|
|
209: int32('q'),
|
|
210: int32('r'),
|
|
211: int32('s'),
|
|
212: int32('t'),
|
|
213: int32('u'),
|
|
214: int32('v'),
|
|
215: int32('w'),
|
|
216: int32('x'),
|
|
217: int32('y'),
|
|
218: int32('z'),
|
|
219: int32(91),
|
|
220: int32(92),
|
|
221: int32(93),
|
|
222: int32(94),
|
|
223: int32(95),
|
|
224: int32(96),
|
|
225: int32('a'),
|
|
226: int32('b'),
|
|
227: int32('c'),
|
|
228: int32('d'),
|
|
229: int32('e'),
|
|
230: int32('f'),
|
|
231: int32('g'),
|
|
232: int32('h'),
|
|
233: int32('i'),
|
|
234: int32('j'),
|
|
235: int32('k'),
|
|
236: int32('l'),
|
|
237: int32('m'),
|
|
238: int32('n'),
|
|
239: int32('o'),
|
|
240: int32('p'),
|
|
241: int32('q'),
|
|
242: int32('r'),
|
|
243: int32('s'),
|
|
244: int32('t'),
|
|
245: int32('u'),
|
|
246: int32('v'),
|
|
247: int32('w'),
|
|
248: int32('x'),
|
|
249: int32('y'),
|
|
250: int32('z'),
|
|
251: int32(123),
|
|
252: int32(124),
|
|
253: int32(125),
|
|
254: int32(126),
|
|
255: int32(127),
|
|
}
|
|
|
|
var _ptable1 = uintptr(unsafe.Pointer(&_table1)) + uintptr(128)*4
|
|
|
|
func X__ctype_tolower_loc(tls *TLS) (r uintptr) {
|
|
return uintptr(unsafe.Pointer(&_ptable1))
|
|
}
|
|
|
|
type Tin6_addr = struct {
|
|
F__in6_union struct {
|
|
F__s6_addr16 [0][8]uint16
|
|
F__s6_addr32 [0][4]uint32
|
|
F__s6_addr [16]uint8
|
|
}
|
|
}
|
|
|
|
var Xin6addr_any = Tin6_addr{}
|
|
|
|
func Xrewinddir(tls *TLS, f uintptr) {
|
|
Xfseek(tls, f, 0, stdio.SEEK_SET)
|
|
}
|
|
|
|
// clock_t clock(void);
|
|
func Xclock(t *TLS) time.Clock_t {
|
|
return time.Clock_t(gotime.Since(startTime) * gotime.Duration(time.CLOCKS_PER_SEC) / gotime.Second)
|
|
}
|