1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136
//! `recv` and `send`, and variants
#[cfg(not(windows))]
use crate::net::SocketAddrUnix;
use crate::net::{SocketAddrAny, SocketAddrV4, SocketAddrV6};
use crate::{imp, io};
use imp::fd::AsFd;
#[cfg(windows)]
use imp::fd::AsSocketAsFd;
pub use imp::net::{RecvFlags, SendFlags};
/// `recv(fd, buf, flags)`—Reads data from a socket.
///
/// # References
/// - [POSIX]
/// - [Linux]
/// - [Winsock2]
///
/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/recv.html
/// [Linux]: https://man7.org/linux/man-pages/man2/recv.2.html
/// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-recv
#[inline]
pub fn recv<Fd: AsFd>(fd: &Fd, buf: &mut [u8], flags: RecvFlags) -> io::Result<usize> {
let fd = fd.as_fd();
imp::syscalls::recv(fd, buf, flags)
}
/// `send(fd, buf, flags)`—Writes data to a socket.
///
/// # References
/// - [POSIX]
/// - [Linux]
/// - [Winsock2]
///
/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/send.html
/// [Linux]: https://man7.org/linux/man-pages/man2/send.2.html
/// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-send
#[inline]
pub fn send<Fd: AsFd>(fd: &Fd, buf: &[u8], flags: SendFlags) -> io::Result<usize> {
let fd = fd.as_fd();
imp::syscalls::send(fd, buf, flags)
}
/// `recvfrom(fd, buf, flags, addr, len)`—Reads data from a socket and
/// returns the sender address.
///
/// # References
/// - [POSIX]
/// - [Linux]
/// - [Winsock2]
///
/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/recvfrom.html
/// [Linux]: https://man7.org/linux/man-pages/man2/recvfrom.2.html
/// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-recvfrom
#[inline]
pub fn recvfrom<Fd: AsFd>(
fd: &Fd,
buf: &mut [u8],
flags: RecvFlags,
) -> io::Result<(usize, SocketAddrAny)> {
let fd = fd.as_fd();
imp::syscalls::recvfrom(fd, buf, flags)
}
/// `sendto(fd, buf, flags, addr, sizeof(struct sockaddr_in))`—Writes data to
/// a socket to a specific IPv4 address.
///
/// # References
/// - [POSIX]
/// - [Linux]
/// - [Winsock2]
///
/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/sendto.html
/// [Linux]: https://man7.org/linux/man-pages/man2/sendto.2.html
/// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-sendto
#[inline]
#[doc(alias = "sendto")]
pub fn sendto_v4<Fd: AsFd>(
fd: &Fd,
buf: &[u8],
flags: SendFlags,
addr: &SocketAddrV4,
) -> io::Result<usize> {
let fd = fd.as_fd();
imp::syscalls::sendto_v4(fd, buf, flags, addr)
}
/// `sendto(fd, buf, flags, addr, sizeof(struct sockaddr_in6))`—Writes data
/// to a socket to a specific IPv6 address.
///
/// # References
/// - [POSIX]
/// - [Linux]
/// - [Winsock2]
///
/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/sendto.html
/// [Linux]: https://man7.org/linux/man-pages/man2/sendto.2.html
/// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-sendto
#[inline]
#[doc(alias = "sendto")]
pub fn sendto_v6<Fd: AsFd>(
fd: &Fd,
buf: &[u8],
flags: SendFlags,
addr: &SocketAddrV6,
) -> io::Result<usize> {
let fd = fd.as_fd();
imp::syscalls::sendto_v6(fd, buf, flags, addr)
}
/// `sendto(fd, buf, flags, addr, sizeof(struct sockaddr_un))`—Writes data to
/// a socket to a specific Unix-domain socket address.
///
/// # References
/// - [POSIX]
/// - [Linux]
/// - [Winsock2]
///
/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/sendto.html
/// [Linux]: https://man7.org/linux/man-pages/man2/sendto.2.html
/// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-sendto
#[inline]
#[doc(alias = "sendto")]
#[cfg(not(windows))]
pub fn sendto_unix<Fd: AsFd>(
fd: &Fd,
buf: &[u8],
flags: SendFlags,
addr: &SocketAddrUnix,
) -> io::Result<usize> {
let fd = fd.as_fd();
imp::syscalls::sendto_unix(fd, buf, flags, addr)
}
// TODO: `recvmsg`, `sendmsg`