Mirrors/chatmail-core
1
0
Fork 0
mirror of https://github.com/chatmail/core.git synced 2026-09-22 04:58:47 +03:00
Code Issues Packages Projects Releases Wiki Activity

fix(ffi): support custom allocators in event string getters

Browse Source 
Event string getters returned Rust-allocated pointers that dc_str_unref()
frees with libc. This breaks with custom Rust allocators, so allocate the
strings with strdup() instead.
This commit is contained in:
pancake
2026-09-04 16:35:11 +02:00
committed by l
parent b0e5b08531
commit 4bf42c0af9
1 changed files with 9 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
deltachat-ffi/src/lib.rs
View File

@@ -690,7 +690,7 @@ pub unsafe extern "C" fn dc_event_get_data1_str(event: *mut dc_event_t) -> *mut
match event {
EventType::IncomingWebxdcNotify { href, .. } => {
if let Some(href) = href {
href.to_c_string().unwrap_or_default().into_raw()
href.strdup()
} else {
ptr::null_mut()
}
@@ -719,10 +719,7 @@ pub unsafe extern "C" fn dc_event_get_data2_str(event: *mut dc_event_t) -> *mut
| EventType::DeletedBlobFile(msg)
| EventType::Warning(msg)
| EventType::Error(msg)
| EventType::ErrorSelfNotInGroup(msg) => {
let data2 = msg.to_c_string().unwrap_or_default();
data2.into_raw()
}
| EventType::ErrorSelfNotInGroup(msg) => msg.strdup(),
EventType::MsgsChanged { .. }
| EventType::ReactionsChanged { .. }
| EventType::IncomingMsg { .. }
@@ -756,45 +753,27 @@ pub unsafe extern "C" fn dc_event_get_data2_str(event: *mut dc_event_t) -> *mut
| EventType::TransportsModified => ptr::null_mut(),
EventType::IncomingCall {
place_call_info, ..
} => {
let data2 = place_call_info.to_c_string().unwrap_or_default();
data2.into_raw()
}
} => place_call_info.strdup(),
EventType::OutgoingCallAccepted {
accept_call_info, ..
} => {
let data2 = accept_call_info.to_c_string().unwrap_or_default();
data2.into_raw()
}
} => accept_call_info.strdup(),
EventType::CallEnded { .. } | EventType::EventChannelOverflow { .. } => ptr::null_mut(),
EventType::ConfigureProgress { comment, .. } => {
if let Some(comment) = comment {
comment.to_c_string().unwrap_or_default().into_raw()
comment.strdup()
} else {
ptr::null_mut()
}
}
EventType::ImexFileWritten(file) => {
let data2 = file.to_c_string().unwrap_or_default();
data2.into_raw()
}
EventType::ConfigSynced { key } => {
let data2 = key.to_string().to_c_string().unwrap_or_default();
data2.into_raw()
}
EventType::ImexFileWritten(file) => file.strdup(),
EventType::ConfigSynced { key } => key.to_string().strdup(),
EventType::WebxdcRealtimeData { data, .. } => {
let ptr = unsafe { libc::malloc(data.len()) };
unsafe { libc::memcpy(ptr, data.as_ptr() as *mut libc::c_void, data.len()) };
ptr as *mut libc::c_char
}
EventType::IncomingReaction { reaction, .. } => reaction
.as_str()
.to_c_string()
.unwrap_or_default()
.into_raw(),
EventType::IncomingWebxdcNotify { text, .. } => {
text.to_c_string().unwrap_or_default().into_raw()
}
EventType::IncomingReaction { reaction, .. } => reaction.as_str().strdup(),
EventType::IncomingWebxdcNotify { text, .. } => text.strdup(),
#[allow(unreachable_patterns)]
#[cfg(test)]
_ => unreachable!("This is just to silence a rust_analyzer false-positive"),