gtsocial-umbx

libc_darwin_arm64.go (11102B)

---

 // Copyright 2020 The Libc Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 package libc // import "modernc.org/libc"
 
 import (
 	"strings"
 	"time"
 	"unsafe"
 
 	"golang.org/x/sys/unix"
 	"modernc.org/libc/fcntl"
 	"modernc.org/libc/signal"
 	"modernc.org/libc/sys/types"
 	"modernc.org/libc/utime"
 )
 
 // int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact);
 func Xsigaction(t *TLS, signum int32, act, oldact uintptr) int32 {
 	var kact, koldact uintptr
 	if act != 0 {
 		sz := int(unsafe.Sizeof(signal.X__sigaction{}))
 		kact = t.Alloc(sz)
 		defer t.Free(sz)
 		(*signal.X__sigaction)(unsafe.Pointer(kact)).F__sigaction_u.F__sa_handler = (*signal.Sigaction)(unsafe.Pointer(act)).F__sigaction_u.F__sa_handler
 		(*signal.X__sigaction)(unsafe.Pointer(kact)).Fsa_flags = (*signal.Sigaction)(unsafe.Pointer(act)).Fsa_flags
 		Xmemcpy(t, kact+unsafe.Offsetof(signal.X__sigaction{}.Fsa_mask), act+unsafe.Offsetof(signal.Sigaction{}.Fsa_mask), types.Size_t(unsafe.Sizeof(signal.Sigset_t(0))))
 	}
 	if oldact != 0 {
 		panic(todo(""))
 	}
 
 	if _, _, err := unix.Syscall6(unix.SYS_SIGACTION, uintptr(signum), kact, koldact, unsafe.Sizeof(signal.Sigset_t(0)), 0, 0); err != 0 {
 		t.setErrno(err)
 		return -1
 	}
 
 	if oldact != 0 {
 		panic(todo(""))
 	}
 
 	return 0
 }
 
 // int fcntl(int fd, int cmd, ... /* arg */ );
 func Xfcntl64(t *TLS, fd, cmd int32, args uintptr) (r int32) {
 	var err error
 	var p uintptr
 	var i int
 	switch cmd {
 	case fcntl.F_GETLK, fcntl.F_SETLK, fcntl.F_SETLKW:
 		p = *(*uintptr)(unsafe.Pointer(args))
 		err = unix.FcntlFlock(uintptr(fd), int(cmd), (*unix.Flock_t)(unsafe.Pointer(p)))
 	case fcntl.F_GETFL, fcntl.F_FULLFSYNC:
 		i, err = unix.FcntlInt(uintptr(fd), int(cmd), 0)
 		r = int32(i)
 	case fcntl.F_SETFD, fcntl.F_SETFL:
 		arg := *(*int32)(unsafe.Pointer(args))
 		_, err = unix.FcntlInt(uintptr(fd), int(cmd), int(arg))
 	default:
 		panic(todo("%v: %v %v", origin(1), fd, cmd))
 	}
 	if err != nil {
 		if dmesgs {
 			dmesg("%v: fd %v cmd %v p %#x: %v FAIL", origin(1), fcntlCmdStr(fd), cmd, p, err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: %d %s %#x: ok", origin(1), fd, fcntlCmdStr(cmd), p)
 	}
 	return r
 }
 
 // int lstat(const char *pathname, struct stat *statbuf);
 func Xlstat64(t *TLS, pathname, statbuf uintptr) int32 {
 	if err := unix.Lstat(GoString(pathname), (*unix.Stat_t)(unsafe.Pointer(statbuf))); err != nil {
 		if dmesgs {
 			dmesg("%v: %q: %v FAIL", origin(1), GoString(pathname), err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: %q: ok", origin(1), GoString(pathname))
 	}
 	return 0
 }
 
 // int stat(const char *pathname, struct stat *statbuf);
 func Xstat64(t *TLS, pathname, statbuf uintptr) int32 {
 	if err := unix.Stat(GoString(pathname), (*unix.Stat_t)(unsafe.Pointer(statbuf))); err != nil {
 		if dmesgs {
 			dmesg("%v: %q: %v FAIL", origin(1), GoString(pathname), err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: %q: ok", origin(1), GoString(pathname))
 	}
 	return 0
 }
 
 // int fstatfs(int fd, struct statfs *buf);
 func Xfstatfs(t *TLS, fd int32, buf uintptr) int32 {
 	if err := unix.Fstatfs(int(fd), (*unix.Statfs_t)(unsafe.Pointer(buf))); err != nil {
 		if dmesgs {
 			dmesg("%v: %v: %v FAIL", origin(1), fd, err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: %v: ok", origin(1), fd)
 	}
 	return 0
 }
 
 // int statfs(const char *path, struct statfs *buf);
 func Xstatfs(t *TLS, path uintptr, buf uintptr) int32 {
 	if err := unix.Statfs(GoString(path), (*unix.Statfs_t)(unsafe.Pointer(buf))); err != nil {
 		if dmesgs {
 			dmesg("%v: %q: %v FAIL", origin(1), GoString(path), err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: %q: ok", origin(1), GoString(path))
 	}
 	return 0
 }
 
 // int fstat(int fd, struct stat *statbuf);
 func Xfstat64(t *TLS, fd int32, statbuf uintptr) int32 {
 	if err := unix.Fstat(int(fd), (*unix.Stat_t)(unsafe.Pointer(statbuf))); err != nil {
 		if dmesgs {
 			dmesg("%v: fd %d: %v FAIL", origin(1), fd, err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: fd %d: ok", origin(1), fd)
 	}
 	return 0
 }
 
 // off64_t lseek64(int fd, off64_t offset, int whence);
 func Xlseek64(t *TLS, fd int32, offset types.Off_t, whence int32) types.Off_t {
 	n, err := unix.Seek(int(fd), int64(offset), int(whence))
 	if err != nil {
 		if dmesgs {
 			dmesg("%v: %v FAIL", origin(1), err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: ok", origin(1))
 	}
 	return types.Off_t(n)
 }
 
 // int utime(const char *filename, const struct utimbuf *times);
 func Xutime(t *TLS, filename, times uintptr) int32 {
 	var a []unix.Timeval
 	if times != 0 {
 		a = make([]unix.Timeval, 2)
 		a[0].Sec = (*utime.Utimbuf)(unsafe.Pointer(times)).Factime
 		a[1].Sec = (*utime.Utimbuf)(unsafe.Pointer(times)).Fmodtime
 	}
 	if err := unix.Utimes(GoString(filename), a); err != nil {
 		if dmesgs {
 			dmesg("%v: %v FAIL", origin(1), err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: ok", origin(1))
 	}
 	return 0
 }
 
 // unsigned int alarm(unsigned int seconds);
 func Xalarm(t *TLS, seconds uint32) uint32 {
 	panic(todo(""))
 	// n, _, err := unix.Syscall(unix.SYS_ALARM, uintptr(seconds), 0, 0)
 	// if err != 0 {
 	// 	panic(todo(""))
 	// }
 
 	// return uint32(n)
 }
 
 // time_t time(time_t *tloc);
 func Xtime(t *TLS, tloc uintptr) types.Time_t {
 	n := time.Now().UTC().Unix()
 	if tloc != 0 {
 		*(*types.Time_t)(unsafe.Pointer(tloc)) = types.Time_t(n)
 	}
 	return types.Time_t(n)
 }
 
 // // int getrlimit(int resource, struct rlimit *rlim);
 // func Xgetrlimit64(t *TLS, resource int32, rlim uintptr) int32 {
 // 	if _, _, err := unix.Syscall(unix.SYS_GETRLIMIT, uintptr(resource), uintptr(rlim), 0); err != 0 {
 // 		t.setErrno(err)
 // 		return -1
 // 	}
 //
 // 	return 0
 // }
 
 // int mkdir(const char *path, mode_t mode);
 func Xmkdir(t *TLS, path uintptr, mode types.Mode_t) int32 {
 	if err := unix.Mkdir(GoString(path), uint32(mode)); err != nil {
 		if dmesgs {
 			dmesg("%v: %q: %v FAIL", origin(1), GoString(path), err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: %q: ok", origin(1), GoString(path))
 	}
 	return 0
 }
 
 // int symlink(const char *target, const char *linkpath);
 func Xsymlink(t *TLS, target, linkpath uintptr) int32 {
 	if err := unix.Symlink(GoString(target), GoString(linkpath)); err != nil {
 		if dmesgs {
 			dmesg("%v: %v FAIL", origin(1), err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: ok", origin(1))
 	}
 	return 0
 }
 
 // int chmod(const char *pathname, mode_t mode)
 func Xchmod(t *TLS, pathname uintptr, mode types.Mode_t) int32 {
 	if err := unix.Chmod(GoString(pathname), uint32(mode)); err != nil {
 		if dmesgs {
 			dmesg("%v: %q %#o: %v FAIL", origin(1), GoString(pathname), mode, err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: %q %#o: ok", origin(1), GoString(pathname), mode)
 	}
 	return 0
 }
 
 // int utimes(const char *filename, const struct timeval times[2]);
 func Xutimes(t *TLS, filename, times uintptr) int32 {
 	var a []unix.Timeval
 	if times != 0 {
 		a = make([]unix.Timeval, 2)
 		a[0] = *(*unix.Timeval)(unsafe.Pointer(times))
 		a[1] = *(*unix.Timeval)(unsafe.Pointer(times + unsafe.Sizeof(unix.Timeval{})))
 	}
 	if err := unix.Utimes(GoString(filename), a); err != nil {
 		if dmesgs {
 			dmesg("%v: %v FAIL", origin(1), err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: ok", origin(1))
 	}
 	return 0
 }
 
 // int unlink(const char *pathname);
 func Xunlink(t *TLS, pathname uintptr) int32 {
 	if err := unix.Unlink(GoString(pathname)); err != nil {
 		if dmesgs {
 			dmesg("%v: %q: %v", origin(1), GoString(pathname), err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: ok", origin(1))
 	}
 	return 0
 }
 
 // int access(const char *pathname, int mode);
 func Xaccess(t *TLS, pathname uintptr, mode int32) int32 {
 	if err := unix.Access(GoString(pathname), uint32(mode)); err != nil {
 		if dmesgs {
 			dmesg("%v: %q %#o: %v FAIL", origin(1), GoString(pathname), mode, err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: %q %#o: ok", origin(1), GoString(pathname), mode)
 	}
 	return 0
 }
 
 // int rename(const char *oldpath, const char *newpath);
 func Xrename(t *TLS, oldpath, newpath uintptr) int32 {
 	if err := unix.Rename(GoString(oldpath), GoString(newpath)); err != nil {
 		if dmesgs {
 			dmesg("%v: %v FAIL", origin(1), err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: ok", origin(1))
 	}
 	return 0
 }
 
 // int mknod(const char *pathname, mode_t mode, dev_t dev);
 func Xmknod(t *TLS, pathname uintptr, mode types.Mode_t, dev types.Dev_t) int32 {
 	panic(todo(""))
 	// if _, _, err := unix.Syscall(unix.SYS_MKNOD, pathname, uintptr(mode), uintptr(dev)); err != 0 {
 	// 	t.setErrno(err)
 	// 	return -1
 	// }
 
 	// return 0
 }
 
 // int chown(const char *pathname, uid_t owner, gid_t group);
 func Xchown(t *TLS, pathname uintptr, owner types.Uid_t, group types.Gid_t) int32 {
 	panic(todo(""))
 	// if _, _, err := unix.Syscall(unix.SYS_CHOWN, pathname, uintptr(owner), uintptr(group)); err != 0 {
 	// 	t.setErrno(err)
 	// 	return -1
 	// }
 
 	// return 0
 }
 
 // int link(const char *oldpath, const char *newpath);
 func Xlink(t *TLS, oldpath, newpath uintptr) int32 {
 	if _, _, err := unix.Syscall(unix.SYS_LINK, oldpath, newpath, 0); err != 0 {
 		t.setErrno(err)
 		return -1
 	}
 
 	return 0
 }
 
 // int dup2(int oldfd, int newfd);
 func Xdup2(t *TLS, oldfd, newfd int32) int32 {
 	panic(todo(""))
 	// n, _, err := unix.Syscall(unix.SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
 	// if err != 0 {
 	// 	t.setErrno(err)
 	// 	return -1
 	// }
 
 	// return int32(n)
 }
 
 // ssize_t readlink(const char *restrict path, char *restrict buf, size_t bufsize);
 func Xreadlink(t *TLS, path, buf uintptr, bufsize types.Size_t) types.Ssize_t {
 	var n int
 	var err error
 	switch {
 	case buf == 0 || bufsize == 0:
 		n, err = unix.Readlink(GoString(path), nil)
 	default:
 		n, err = unix.Readlink(GoString(path), (*RawMem)(unsafe.Pointer(buf))[:bufsize:bufsize])
 	}
 	if err != nil {
 		if dmesgs {
 			dmesg("%v: %v FAIL", err)
 		}
 		t.setErrno(err)
 		return -1
 	}
 
 	if dmesgs {
 		dmesg("%v: ok")
 	}
 	return types.Ssize_t(n)
 }
 
 // FILE *fopen64(const char *pathname, const char *mode);
 func Xfopen64(t *TLS, pathname, mode uintptr) uintptr {
 	m := strings.ReplaceAll(GoString(mode), "b", "")
 	var flags int
 	switch m {
 	case "r":
 		flags = fcntl.O_RDONLY
 	case "r+":
 		flags = fcntl.O_RDWR
 	case "w":
 		flags = fcntl.O_WRONLY | fcntl.O_CREAT | fcntl.O_TRUNC
 	case "w+":
 		flags = fcntl.O_RDWR | fcntl.O_CREAT | fcntl.O_TRUNC
 	case "a":
 		flags = fcntl.O_WRONLY | fcntl.O_CREAT | fcntl.O_APPEND
 	case "a+":
 		flags = fcntl.O_RDWR | fcntl.O_CREAT | fcntl.O_APPEND
 	default:
 		panic(m)
 	}
 	fd, err := unix.Open(GoString(pathname), int(flags), 0666)
 	if err != nil {
 		if dmesgs {
 			dmesg("%v: %q %q: %v FAIL", origin(1), GoString(pathname), GoString(mode), err)
 		}
 		t.setErrno(err)
 		return 0
 	}
 
 	if dmesgs {
 		dmesg("%v: %q %q: fd %v", origin(1), GoString(pathname), GoString(mode), fd)
 	}
 	if p := newFile(t, int32(fd)); p != 0 {
 		return p
 	}
 
 	panic("OOM")
 }