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explain_setreuid_or_die(3) Library Functions Manual explain_setreuid_or_die(3)

NAME
       explain_setreuid_or_die - set the real and effective user ID and	report
       errors

SYNOPSIS
       #include	<libexplain/setreuid.h>
       void explain_setreuid_or_die(uid_t ruid,	uid_t euid);
       int explain_setreuid_on_error(uid_t ruid, uid_t euid);

DESCRIPTION
       The explain_setreuid_or_die function is used to	call  the  setreuid(2)
       system  call.  On failure an explanation	will be	printed	to stderr, ob-
       tained from the explain_setreuid(3) function, and then the process ter-
       minates by calling exit(EXIT_FAILURE).

       The  explain_setreuid_on_error function is used to call the setreuid(2)
       system call. On failure an explanation will be printed to  stderr,  ob-
       tained  from the	explain_setreuid(3) function, but still	returns	to the
       caller.

       ruid    The ruid, exactly as to be passed  to  the  setreuid(2)	system
	       call.

       euid    The  euid,  exactly  as	to be passed to	the setreuid(2)	system
	       call.

RETURN VALUE
       The explain_setreuid_or_die function only returns on success,  see  se-
       treuid(2)  for  more information. On failure, prints an explanation and
       exits, it does not return.

       The explain_setreuid_on_error function always returns the value	return
       by the wrapped setreuid(2) system call.

EXAMPLE
       The  explain_setreuid_or_die function is	intended to be used in a fash-
       ion similar to the following example:
	      explain_setreuid_or_die(ruid, euid);

SEE ALSO
       setreuid(2)
	       set the real and	effective user ID

       explain_setreuid(3)
	       explain setreuid(2) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2012 Peter	Miller

						    explain_setreuid_or_die(3)

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

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