SYS_FCHOWN               = 123 // { int|sys||fchown(int fd, uid_t uid, gid_t gid); }
	SYS_FCHMOD               = 124 // { int|sys||fchmod(int fd, mode_t mode); }
	SYS_SETREUID             = 126 // { int|sys||setreuid(uid_t ruid, uid_t euid); }
	SYS_SETREGID             = 127 // { int|sys||setregid(gid_t rgid, gid_t egid); }
	SYS_RENAME               = 128 // { int|sys||rename(const char *from, const char *to); }

	SYS_GETRESUID      = 281 // { int sys_getresuid(uid_t *ruid, uid_t *euid, uid_t *suid); }
	SYS_SETRESUID      = 282 // { int sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); }
	SYS_GETRESGID      = 283 // { int sys_getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid); }
	SYS_SETRESGID      = 284 // { int sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); }

	SYS_GETRESUID      = 281 // { int sys_getresuid(uid_t *ruid, uid_t *euid, uid_t *suid); }
	SYS_SETRESUID      = 282 // { int sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); }
	SYS_GETRESGID      = 283 // { int sys_getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid); }
	SYS_SETRESGID      = 284 // { int sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); }

	SYS_KLDFIRSTMOD            = 309 // { int kldfirstmod(int fileid); }
	SYS_GETSID                 = 310 // { int getsid(pid_t pid); }
	SYS_SETRESUID              = 311 // { int setresuid(uid_t ruid, uid_t euid, uid_t suid); }
	SYS_SETRESGID              = 312 // { int setresgid(gid_t rgid, gid_t egid, gid_t sgid); }
	SYS_AIO_RETURN             = 314 // { int aio_return(struct aiocb *aiocbp); }

	SYS_KLDFIRSTMOD              = 309 // { int kldfirstmod(int fileid); }
	SYS_GETSID                   = 310 // { int getsid(pid_t pid); }
	SYS_SETRESUID                = 311 // { int setresuid(uid_t ruid, uid_t euid, uid_t suid); }
	SYS_SETRESGID                = 312 // { int setresgid(gid_t rgid, gid_t egid, gid_t sgid); }
	SYS_AIO_RETURN               = 314 // { ssize_t aio_return(struct aiocb *aiocbp); }

	SYS_KLDFIRSTMOD              = 309 // { int kldfirstmod(int fileid); }
	SYS_GETSID                   = 310 // { int getsid(pid_t pid); }
	SYS_SETRESUID                = 311 // { int setresuid(uid_t ruid, uid_t euid, uid_t suid); }
	SYS_SETRESGID                = 312 // { int setresgid(gid_t rgid, gid_t egid, gid_t sgid); }
	SYS_AIO_RETURN               = 314 // { ssize_t aio_return(struct aiocb *aiocbp); }

	SYS_KLDFIRSTMOD              = 309 // { int kldfirstmod(int fileid); }
	SYS_GETSID                   = 310 // { int getsid(pid_t pid); }
	SYS_SETRESUID                = 311 // { int setresuid(uid_t ruid, uid_t euid, uid_t suid); }
	SYS_SETRESGID                = 312 // { int setresgid(gid_t rgid, gid_t egid, gid_t sgid); }
	SYS_AIO_RETURN               = 314 // { ssize_t aio_return(struct aiocb *aiocbp); }

	SYS_KLDFIRSTMOD              = 309 // { int kldfirstmod(int fileid); }
	SYS_GETSID                   = 310 // { int getsid(pid_t pid); }
	SYS_SETRESUID                = 311 // { int setresuid(uid_t ruid, uid_t euid, uid_t suid); }
	SYS_SETRESGID                = 312 // { int setresgid(gid_t rgid, gid_t egid, gid_t sgid); }
	SYS_AIO_RETURN               = 314 // { ssize_t aio_return(struct aiocb *aiocbp); }

	SYS_KLDFIRSTMOD              = 309 // { int kldfirstmod(int fileid); }
	SYS_GETSID                   = 310 // { int getsid(pid_t pid); }
	SYS_SETRESUID                = 311 // { int setresuid(uid_t ruid, uid_t euid, uid_t suid); }
	SYS_SETRESGID                = 312 // { int setresgid(gid_t rgid, gid_t egid, gid_t sgid); }
	SYS_AIO_RETURN               = 314 // { ssize_t aio_return(struct aiocb *aiocbp); }

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package unix

import (
	"syscall"
	"unsafe"
)

// Note that pgid should really be pid_t, however _C_int (aka int32) is
// generally equivalent.

func Tcsetpgrp(fd int, pgid int32) (err error) {