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Allow to add signed integers to Address variables

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This commit is contained in:
Albert24GG 2024-02-29 22:23:52 +02:00
parent f2f607c7ac
commit 2314d4d492
3 changed files with 15 additions and 9 deletions
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2
src/dumper/offsets.rs
View File

@ -81,7 +81,7 @@ pub fn dump_offsets(
let mut result: usize = 0;
process.read_memory_raw(
address.add(start),
address.add(start.try_into().unwrap()),
&mut result as *mut _ as *mut _,
end - start,
)?;

8
src/util/address.rs
View File

@ -18,8 +18,12 @@ impl Address {
///
/// * `Address` - A new `Address` struct with the value of the current address plus the given value.
#[inline]
pub fn add(&self, value: usize) -> Self {
Self(self.0 + value)
pub fn add(&self, value: i64) -> Self {
if value.is_negative() {
self.sub(value.wrapping_abs() as usize)
} else {
Self(self.0 + value as usize)
}
}
/// Returns true if the value of the address is zero.

14
src/util/process.rs
View File

@ -322,11 +322,12 @@ impl Process {
length: Option<usize>,
) -> Result<Address> {
// The displacement value can be negative.
let displacement = self.read_memory::<i32>(address.add(offset.unwrap_or(0x1)))?;
let displacement =
self.read_memory::<i32>(address.add(offset.unwrap_or(0x1).try_into().unwrap()))?;
Ok(address
.add(length.unwrap_or(0x5))
.add(displacement as usize))
.add(length.unwrap_or(0x5).try_into().unwrap())
.add(displacement.into()))
}
/// Resolves the absolute address of a RIP-relative address.
@ -348,11 +349,12 @@ impl Process {
length: Option<usize>,
) -> Result<Address> {
// The displacement value can be negative.
let displacement = self.read_memory::<i32>(address.add(offset.unwrap_or(0x3)))?;
let displacement =
self.read_memory::<i32>(address.add(offset.unwrap_or(0x3).try_into().unwrap()))?;
Ok(address
.add(length.unwrap_or(0x7))
.add(displacement as usize))
.add(length.unwrap_or(0x7).try_into().unwrap())
.add(displacement.into()))
}
/// Returns the process ID of the first process with the given name.