parent
0c2244d9c5
commit
81e412fa80
@ -0,0 +1,27 @@
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#![no_std]
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#![no_main]
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#[macro_use]
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extern crate user_lib;
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extern crate alloc;
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use user_lib::{close, open, read, OpenFlags};
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#[no_mangle]
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pub fn main() -> i32 {
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let fd = open("filea\0", OpenFlags::RDONLY);
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if fd == -1 {
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panic!("Error occured when opening file");
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}
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let fd = fd as usize;
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let mut buf = [0u8; 256];
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loop {
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let size = read(fd, &mut buf) as usize;
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if size == 0 {
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break;
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}
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println!("{}", core::str::from_utf8(&buf[..size]).unwrap());
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}
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close(fd);
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0
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}
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