05-13-2004
About ptrace... I have seen quite a few bugs in unix kernels. Most of the bugs seem unreasonable. And ptrace in particular seems to not get the kind of testing that a fork or an exec does.
I think that you want the rm or rmdir to actually work. If just should log as well. Remember other stuff is going on too.
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LEARN ABOUT DEBIAN
explain_ptrace_or_die
explain_ptrace_or_die(3) Library Functions Manual explain_ptrace_or_die(3)
NAME
explain_ptrace_or_die - process trace and report errors
SYNOPSIS
#include <libexplain/ptrace.h>
long explain_ptrace_or_die(int request, pid_t pid, void *addr, void *data);
long explain_ptrace_on_error(int request, pid_t pid, void *addr, void *data);
DESCRIPTION
The explain_ptrace_or_die function is used to call the ptrace(2) system call. On failure an explanation will be printed to stderr, obtained
from the explain_ptrace(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_ptrace_on_error function is used to call the ptrace(2) system call. On failure an explanation will be printed to stderr,
obtained from the explain_ptrace(3) function, but still returns to the caller.
request The request, exactly as to be passed to the ptrace(2) system call.
pid The pid, exactly as to be passed to the ptrace(2) system call.
addr The addr, exactly as to be passed to the ptrace(2) system call.
data The data, exactly as to be passed to the ptrace(2) system call.
RETURN VALUE
The explain_ptrace_or_die function only returns on success, see ptrace(2) for more information. On failure, prints an explanation and
exits, it does not return.
The explain_ptrace_on_error function always returns the value return by the wrapped ptrace(2) system call.
EXAMPLE
The explain_ptrace_or_die function is intended to be used in a fashion similar to the following example:
long result = explain_ptrace_or_die(request, pid, addr, data);
SEE ALSO
ptrace(2)
process trace
explain_ptrace(3)
explain ptrace(2) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.52
Copyright (C) 2010 Peter Miller
explain_ptrace_or_die(3)