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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) sys-
       tem 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 1.3
       Copyright (C) 2010 Peter	Miller

						      explain_ptrace_or_die(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT

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