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Assert alignment

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This commit is contained in:
Syrus 2019-06-13 21:53:37 +02:00
parent 4059562560
commit b9fa698a73
1 changed files with 3 additions and 2 deletions
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5
lib/emscripten/src/io/unix.rs
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@ -27,6 +27,7 @@ pub fn chroot(ctx: &mut Ctx, name_ptr: i32) -> i32 {
}
/// getpwuid
#[allow(clippy::cast_ptr_alignment)]
pub fn getpwuid(ctx: &mut Ctx, uid: i32) -> i32 {
debug!("emscripten::getpwuid {}", uid);
@ -40,13 +41,13 @@ pub fn getpwuid(ctx: &mut Ctx, uid: i32) -> i32 {
pw_dir: u32,
pw_shell: u32,
}
unsafe {
let passwd = &*_getpwuid(uid as _);
let passwd_struct_offset = call_malloc(ctx, mem::size_of::<GuestPasswd>() as _);
let passwd_struct_ptr =
emscripten_memory_pointer!(ctx.memory(0), passwd_struct_offset) as *mut GuestPasswd;
assert_eq!(passwd_struct_ptr as usize % std::cmp::min(std::mem::size_of::<usize>(), std::mem::align_of::<usize>()), 0);
(*passwd_struct_ptr).pw_name = copy_cstr_into_wasm(ctx, passwd.pw_name);
(*passwd_struct_ptr).pw_passwd = copy_cstr_into_wasm(ctx, passwd.pw_passwd);
(*passwd_struct_ptr).pw_gecos = copy_cstr_into_wasm(ctx, passwd.pw_gecos);