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Author: marmistrz

src/sys/ptrace.rs

@@ -204,13 +204,15 @@ pub fn peekuser(pid: Pid, reg: Register) -> Result<Word> {
     }
 } 
 
-/// Makes the `PTRACE_PEEKUSER` request to ptrace
+/// Makes the `PTRACE_POKEUSER` request to ptrace
+/// 
+/// When incorrectly used, may change the registers to bad values,
+/// causing e.g. memory being corrupted by a syscall, thus is marked unsafe
 pub unsafe fn pokeuser(pid: Pid, reg: Register, val: Word) -> Result<()> {
     let reg_arg = (reg as u64) as *mut c_void;
     ptrace(ptrace::PTRACE_POKEUSER, pid, reg_arg, val as *mut c_void).map(|_| ()) // ignore the useless return value
 }
 
-
 /// Sets the process as traceable with `PTRACE_TRACEME`
 pub fn traceme() -> Result<()> {
     unsafe {