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/*-
* Copyright (c) 2015 Nuxi, https://nuxi.nl/
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/filedesc.h>
#include <sys/proc.h>
#include <sys/syscallsubr.h>
#include <sys/sysproto.h>
#include <sys/unistd.h>
#include <compat/cloudabi/cloudabi_proto.h>
int
cloudabi_sys_fd_close(struct thread *td, struct cloudabi_sys_fd_close_args *uap)
{
return (kern_close(td, uap->fd));
}
int
cloudabi_sys_fd_create1(struct thread *td,
struct cloudabi_sys_fd_create1_args *uap)
{
struct socket_args socket_args = {
.domain = AF_UNIX,
};
switch (uap->type) {
case CLOUDABI_FILETYPE_SOCKET_DGRAM:
socket_args.type = SOCK_DGRAM;
return (sys_socket(td, &socket_args));
case CLOUDABI_FILETYPE_SOCKET_SEQPACKET:
socket_args.type = SOCK_SEQPACKET;
return (sys_socket(td, &socket_args));
case CLOUDABI_FILETYPE_SOCKET_STREAM:
socket_args.type = SOCK_STREAM;
return (sys_socket(td, &socket_args));
default:
return (EINVAL);
}
}
int
cloudabi_sys_fd_create2(struct thread *td,
struct cloudabi_sys_fd_create2_args *uap)
{
int fds[2];
int error;
switch (uap->type) {
case CLOUDABI_FILETYPE_SOCKET_DGRAM:
error = kern_socketpair(td, AF_UNIX, SOCK_DGRAM, 0, fds);
break;
case CLOUDABI_FILETYPE_SOCKET_SEQPACKET:
error = kern_socketpair(td, AF_UNIX, SOCK_SEQPACKET, 0, fds);
break;
case CLOUDABI_FILETYPE_SOCKET_STREAM:
error = kern_socketpair(td, AF_UNIX, SOCK_STREAM, 0, fds);
break;
default:
return (EINVAL);
}
if (error == 0) {
td->td_retval[0] = fds[0];
td->td_retval[1] = fds[1];
}
return (0);
}
int
cloudabi_sys_fd_datasync(struct thread *td,
struct cloudabi_sys_fd_datasync_args *uap)
{
struct fsync_args fsync_args = {
.fd = uap->fd
};
/* Call into fsync(), as FreeBSD lacks fdatasync(). */
return (sys_fsync(td, &fsync_args));
}
int
cloudabi_sys_fd_dup(struct thread *td, struct cloudabi_sys_fd_dup_args *uap)
{
return (kern_dup(td, FDDUP_NORMAL, 0, uap->from, 0));
}
int
cloudabi_sys_fd_replace(struct thread *td,
struct cloudabi_sys_fd_replace_args *uap)
{
int error;
/*
* CloudABI's equivalent to dup2(). CloudABI processes should
* not depend on hardcoded file descriptor layouts, but simply
* use the file descriptor numbers that are allocated by the
* kernel. Duplicating file descriptors to arbitrary numbers
* should not be done.
*
* Invoke kern_dup() with FDDUP_MUSTREPLACE, so that we return
* EBADF when duplicating to a nonexistent file descriptor. Also
* clear the return value, as this system call yields no return
* value.
*/
error = kern_dup(td, FDDUP_MUSTREPLACE, 0, uap->from, uap->to);
td->td_retval[0] = 0;
return (error);
}
int
cloudabi_sys_fd_seek(struct thread *td, struct cloudabi_sys_fd_seek_args *uap)
{
struct lseek_args lseek_args = {
.fd = uap->fd,
.offset = uap->offset
};
switch (uap->whence) {
case CLOUDABI_WHENCE_CUR:
lseek_args.whence = SEEK_CUR;
break;
case CLOUDABI_WHENCE_END:
lseek_args.whence = SEEK_END;
break;
case CLOUDABI_WHENCE_SET:
lseek_args.whence = SEEK_SET;
break;
default:
return (EINVAL);
}
return (sys_lseek(td, &lseek_args));
}
int
cloudabi_sys_fd_stat_get(struct thread *td,
struct cloudabi_sys_fd_stat_get_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_fd_stat_put(struct thread *td,
struct cloudabi_sys_fd_stat_put_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_fd_sync(struct thread *td, struct cloudabi_sys_fd_sync_args *uap)
{
struct fsync_args fsync_args = {
.fd = uap->fd
};
return (sys_fsync(td, &fsync_args));
}
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