sys_recvfrom

kernel::abi::linux::riscv64::socket

Function sys_recvfrom 

Source 
pub fn sys_recvfrom(
    abi: &mut LinuxRiscv64Abi,
    trapframe: &mut Trapframe,
) -> usize
Expand description

Linux sys_recvfrom implementation

Receive a message from a socket. Returns the source address if provided.

Arguments:

  • abi: LinuxRiscv64Abi context
  • trapframe: Trapframe containing syscall arguments
    • arg0: sockfd (socket file descriptor)
    • arg1: buf (pointer to receive buffer)
    • arg2: len (length of buffer)
    • arg3: flags (receive flags)
    • arg4: src_addr (pointer to store source address, may be NULL)
    • arg5: addrlen (pointer to address length, input/output)

Returns:

  • number of bytes received on success
  • negative errno on error