explain_setregid_or_die

NAME

explain_setregid_or_die − set real and/or effective group ID and report errors

SYNOPSIS

#include <libexplain/setregid.h>
void explain_setregid_or_die(gid_t rgid, gid_t egid);
int explain_setregid_on_error(gid_t rgid, gid_t egid);

DESCRIPTION

The explain_setregid_or_die function is used to call the setregid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_setregid(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

The explain_setregid_on_error function is used to call the setregid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_setregid(3) function, but still returns to the caller.

RETURN VALUE

The explain_setregid_or_die function only returns on success, see setregid(2) for more information. On failure, prints an explanation and exits, it does not return.

The explain_setregid_on_error function always returns the value return by the wrapped setregid(2) system call.

EXAMPLE

The explain_setregid_or_die function is intended to be used in a fashion similar to the following example:

explain_setregid_or_die(rgid, egid);

SEE ALSO

setregid(2)

set real and/or effective group ID

explain_setregid(3)

explain setregid(2) errors

COPYRIGHT

libexplain version 1.4
Copyright (C) 2012 Peter Miller