macho_objc/
property.rs

1use crate::error::Result;
2use crate::format::io::pod::{self, RawMethodListHeader, RawPropertyT};
3use crate::model::addr::Va;
4use crate::objc::resolve::ObjCResolver;
5use crate::objc::types::{METHOD_LIST_ENTSIZE_MASK, ObjCProperty};
6
7/// Performs parse_property_list.
8pub fn parse_property_list(resolver: &ObjCResolver<'_>, va: Va) -> Result<Vec<ObjCProperty>> {
9    parse_property_list_with_kind(resolver, va, false)
10}
11
12/// Performs parse_property_list_with_kind.
13pub fn parse_property_list_with_kind(
14    resolver: &ObjCResolver<'_>,
15    va: Va,
16    is_class: bool,
17) -> Result<Vec<ObjCProperty>> {
18    let offset = resolver.va_to_offset(va)?;
19    let data = resolver.macho().bytes();
20    let endian = resolver.endian();
21
22    let header: RawMethodListHeader = pod::read_pod(data, offset.as_usize())?;
23    let entsize_and_flags = endian.interpret_u32(header.entsize_and_flags);
24    let count = endian.interpret_u32(header.count) as usize;
25    let header_size = size_of::<RawMethodListHeader>();
26
27    let entsize = (entsize_and_flags & METHOD_LIST_ENTSIZE_MASK) as usize;
28    let entry_size = if entsize > 0 {
29        entsize
30    } else {
31        size_of::<RawPropertyT>()
32    };
33
34    let mut props = Vec::with_capacity(count.min(1000));
35
36    for i in 0..count {
37        let entry_offset = offset.as_usize() + header_size + i * entry_size;
38
39        let name_ptr = resolver.read_pointer_at_offset(entry_offset as u64)?;
40        let attr_ptr = resolver.read_pointer_at_offset(entry_offset as u64 + 8)?;
41
42        let name = match name_ptr {
43            Some(va) => resolver.read_cstring(va).unwrap_or("<invalid>"),
44            None => "<null>",
45        };
46        let attributes = match attr_ptr {
47            Some(va) => resolver.read_cstring(va).unwrap_or(""),
48            None => "",
49        };
50
51        props.push(ObjCProperty {
52            name: name.to_string(),
53            attributes: attributes.to_string(),
54            is_class,
55        });
56    }
57
58    Ok(props)
59}
macho_objc/property.rs

macho_objc/
property.rs
