sys_vfs_readlink

kernel::fs::vfs_v2::syscall

Function sys_vfs_readlink 

Source 
pub fn sys_vfs_readlink(trapframe: &mut Trapframe) -> usize
Expand description

Read symbolic link target (VfsReadlink)

This system call reads the target of a symbolic link.

§Arguments

  • trapframe.get_arg(0) - Pointer to symlink path
  • trapframe.get_arg(1) - Pointer to buffer to store target path
  • trapframe.get_arg(2) - Buffer size

§Returns

  • Number of bytes written to buffer on success
  • usize::MAX on error (not a symlink, permission denied, etc.)