Rename crates from jinux-* to aster-*

services/libs/aster-std/src/syscall/sendto.rs

@@ -0,0 +1,35 @@
+use crate::fs::file_table::FileDescripter;
+use crate::get_socket_without_holding_filetable_lock;
+use crate::log_syscall_entry;
+use crate::net::socket::SendRecvFlags;
+use crate::prelude::*;
+use crate::util::net::read_socket_addr_from_user;
+use crate::util::read_bytes_from_user;
+
+use super::SyscallReturn;
+use super::SYS_SENDTO;
+
+pub fn sys_sendto(
+    sockfd: FileDescripter,
+    buf: Vaddr,
+    len: usize,
+    flags: i32,
+    dest_addr: Vaddr,
+    addrlen: usize,
+) -> Result<SyscallReturn> {
+    log_syscall_entry!(SYS_SENDTO);
+    let flags = SendRecvFlags::from_bits_truncate(flags);
+    let socket_addr = if dest_addr == 0 {
+        None
+    } else {
+        let socket_addr = read_socket_addr_from_user(dest_addr, addrlen)?;
+        Some(socket_addr)
+    };
+    debug!("sockfd = {sockfd}, buf = 0x{buf:x}, len = 0x{len:x}, flags = {flags:?}, socket_addr = {socket_addr:?}");
+    let mut buffer = vec![0u8; len];
+    read_bytes_from_user(buf, &mut buffer)?;
+    let current = current!();
+    get_socket_without_holding_filetable_lock!(socket, current, sockfd);
+    let send_size = socket.sendto(&buffer, socket_addr, flags)?;
+    Ok(SyscallReturn::Return(send_size as _))
+}