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21 lines
531 B
Rust
21 lines
531 B
Rust
2 years ago
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//! File and filesystem-related syscalls
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use crate::print;
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const FD_STDOUT: usize = 1;
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/// write buf of length `len` to a file with `fd`
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pub fn sys_write(fd: usize, buf: *const u8, len: usize) -> isize {
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match fd {
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FD_STDOUT => {
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let slice = unsafe { core::slice::from_raw_parts(buf, len) };
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let str = core::str::from_utf8(slice).unwrap();
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print!("{}", str);
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len as isize
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}
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_ => {
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panic!("Unsupported fd in sys_write!");
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}
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}
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}
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