Commit 616adc22 authored by topjohnwu's avatar topjohnwu

Support Linux < 3.6

parent 916e373e
......@@ -82,19 +82,19 @@ pub fn realpath(path: &CStr, buf: &mut [u8]) -> isize {
if let Some(fd) = open_fd!(path, O_PATH | O_CLOEXEC) {
let mut st1: libc::stat;
let mut st2: libc::stat;
let mut skip_check = false;
unsafe {
st1 = std::mem::zeroed();
if libc::fstat(fd.as_raw_fd(), &mut st1) < 0 {
*errno() = ENOENT;
return -1;
// This shall only fail on Linux < 3.6
skip_check = true;
}
}
let len = fd_path(fd.as_raw_fd(), buf);
unsafe {
st2 = std::mem::zeroed();
if libc::stat(buf.as_ptr().cast(), &mut st2) < 0
|| st2.st_dev != st1.st_dev
|| st2.st_ino != st1.st_ino
|| (!skip_check && (st2.st_dev != st1.st_dev || st2.st_ino != st1.st_ino))
{
*errno() = ENOENT;
return -1;
......
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