mirror of https://github.com/dswd/zvault
19 lines
570 B
Rust
19 lines
570 B
Rust
use libc;
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use std::ffi;
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extern {
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fn gethostname(name: *mut libc::c_char, size: libc::size_t) -> libc::c_int;
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}
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pub fn get_hostname() -> Result<String, ()> {
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let mut buf = Vec::with_capacity(255);
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buf.resize(255, 0u8);
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if unsafe { gethostname(buf.as_mut_ptr() as *mut libc::c_char, buf.len() as libc::size_t) } == 0 {
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buf[254] = 0; //enforce null-termination
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let name = unsafe { ffi::CStr::from_ptr(buf.as_ptr() as *const libc::c_char) };
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name.to_str().map(|s| s.to_string()).map_err(|_| ())
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} else {
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Err(())
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}
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}
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