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chore: only change necessary registers

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This commit is contained in:
əlemi 2023-03-28 22:29:33 +02:00
parent 7c6d4f35cc
commit cbd959f487
Signed by: alemi
GPG key ID: A4895B84D311642C
1 changed files with 10 additions and 3 deletions
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13
src/needle/syscalls.rs
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@ -67,7 +67,10 @@ impl RemoteOpen {
impl RemoteSyscall for RemoteOpen { impl RemoteSyscall for RemoteOpen {
fn registers(&self, regs: &mut user_regs_struct) { // TODO handle this unwrap fn registers(&self, regs: &mut user_regs_struct) { // TODO handle this unwrap
Self::prepare_registers(regs, 2, self.filename.ptr.unwrap() as u64, self.flags, self.mode, 0, 0, 0); regs.rax = 2;
regs.rdi = self.filename.ptr.unwrap() as u64;
regs.rsi = self.flags;
regs.rdx = self.mode;
} }
} }
@ -89,7 +92,10 @@ impl RemoteWrite {
impl RemoteSyscall for RemoteWrite { impl RemoteSyscall for RemoteWrite {
fn registers(&self, regs: &mut user_regs_struct) { fn registers(&self, regs: &mut user_regs_struct) {
Self::prepare_registers(regs, 1, self.fd as u64, self.ptr, self.len, 0, 0, 0); regs.rax = 1;
regs.rdi = self.fd as u64;
regs.rsi = self.ptr;
regs.rdx = self.len;
} }
} }
@ -117,6 +123,7 @@ impl RemoteExit {
impl RemoteSyscall for RemoteExit { impl RemoteSyscall for RemoteExit {
fn registers(&self, regs: &mut user_regs_struct) { fn registers(&self, regs: &mut user_regs_struct) {
Self::prepare_registers(regs, 60, self.code as u64, 0, 0, 0, 0, 0); regs.rax = 60;
regs.rdi = self.code as u64;
} }
} }