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std::unix::os::home_dir: fallback's optimisation. · rust-lang/rust@bd9ce3e

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  • library/std/src/sys/pal/unix

1 file changed

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Original file line numberDiff line numberDiff line change

@@ -738,16 +738,17 @@ pub fn home_dir() -> Option<PathBuf> {

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n => n as usize,

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};

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let mut buf = Vec::with_capacity(amt);

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let mut passwd: libc::passwd = mem::zeroed();

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let mut p = mem::MaybeUninit::<libc::passwd>::uninit();

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let mut result = ptr::null_mut();

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match libc::getpwuid_r(

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libc::getuid(),

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&mut passwd,

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p.as_mut_ptr(),

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buf.as_mut_ptr(),

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buf.capacity(),

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&mut result,

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) {

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0 if !result.is_null() => {

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let passwd = p.assume_init();

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let ptr = passwd.pw_dir as *const _;

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let bytes = CStr::from_ptr(ptr).to_bytes().to_vec();

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Some(OsStringExt::from_vec(bytes))