AU_BSM_TO_ERRNO(3) BSD Library Functions Manual AU_BSM_TO_ERRNO(3)NAME
au_bsm_to_errno, au_errno_to_bsm, au_strerror — convert between BSM and
local error numbers
LIBRARY
library “libbsm”
SYNOPSIS
#include <bsm/libbsm.h>
int
au_bsm_to_errno(u_char bsm_error, int *errorp);
u_char
au_errno_to_bsm(int error);
const char *
au_strerror(int bsm_error);
DESCRIPTION
These interfaces may be used to convert between the local ( errno(2)) and
BSM error number spaces found in BSM return tokens.
The au_bsm_to_errno() function accepts a BSM error value, bsm_error, and
converts it to an errno(2) that will be stored in the integer pointed to
by errorp if successful. This call will fail if the BSM error cannot be
mapped into a local error number, which may occur if the return token was
generated on another operating system.
The au_errno_to_bsm() function accepts a local errno(2) value, and
returns the BSM error number for it. This call cannot fail, and instead
returns a BSM error number indicating to a later decoder that the error
could not be encoded.
The au_strerror() function converts a BSM error value to a string, gener‐
ally by converting first to a local error number and using the local
strerror(3) function, but will also work for errors that are not locally
defined.
RETURN VALULES
On success, au_bsm_to_errno() returns 0 and a converted error value; on
failure, it returns -1 but does not set errno(2).
On success, au_strerror() returns a pointer to an error string; on fail‐
ure it will return NULL.
SEE ALSOau_to_return(3), au_to_return32(3), au_to_return64(3), libbsm(3)HISTORYau_bsm_to_errno() and au_errno_to_bsm() were introduced in OpenBSM 1.1.
AUTHORS
These functions were implemented by Robert Watson under contract to Apple
Inc.
The Basic Security Module (BSM) interface to audit records and audit
event stream format were defined by Sun Microsystems.
BUGS
au_strerror is unable to provide localized strings for errors not avail‐
able in the local operating system.
BSD December 8, 2008 BSD
