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prevent max path length limit when updating

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beerpiss 2024-06-30 03:15:26 +07:00
parent a55c2bdd55
commit 6df3e8b351
1 changed files with 6 additions and 2 deletions
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8
src/updater/mod.rs
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@ -346,11 +346,15 @@ pub fn self_update(module: &LibraryHandle) -> Result<bool, SelfUpdateError> {
debug!("Allocated heap for updater code at {heap:p}"); debug!("Allocated heap for updater code at {heap:p}");
(*heap).module = module.handle(); (*heap).module = module.handle();
// Prepend "\\?\" to the path to prevent path length limits.
(*heap).old[0..4].copy_from_slice(&[0x005C, 0x005C, 0x003F, 0x005C]);
(*heap).new[0..4].copy_from_slice(&[0x005C, 0x005C, 0x003F, 0x005C]);
for (i, c) in module_filename.encode_utf16().enumerate() { for (i, c) in module_filename.encode_utf16().enumerate() {
(*heap).old[i] = c; (*heap).old[i + 4] = c;
} }
for (i, c) in new_module_filename.encode_utf16().enumerate() { for (i, c) in new_module_filename.encode_utf16().enumerate() {
(*heap).new[i] = c; (*heap).new[i + 4] = c;
} }
let updater_start_address = (replace_with_new_library as PROC) let updater_start_address = (replace_with_new_library as PROC)