/* Generic errno.h */ /* $OpenLDAP: pkg/ldap/include/ac/errno.h,v 1.24.2.1 2003/03/03 17:10:03 kurt Exp $ */ /* * Copyright 1998-2003 The OpenLDAP Foundation, Redwood City, California, USA * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted only as authorized by the OpenLDAP * Public License. A copy of this license is available at * http://www.OpenLDAP.org/license.html or in file LICENSE in the * top-level directory of the distribution. */ #ifndef _AC_ERRNO_H #define _AC_ERRNO_H #if defined( HAVE_ERRNO_H ) # include <errno.h> #elif defined( HAVE_SYS_ERRNO_H ) # include <sys/errno.h> #endif #ifndef HAVE_SYS_ERRLIST /* no sys_errlist */ # define sys_nerr 0 # define sys_errlist ((char **)0) #elif DECL_SYS_ERRLIST /* have sys_errlist but need declaration */ LDAP_LIBC_V(int) sys_nerr; LDAP_LIBC_V(char) *sys_errlist[]; #endif #undef _AC_ERRNO_UNKNOWN #define _AC_ERRNO_UNKNOWN "unknown error" #ifdef HAVE_SYS_ERRLIST /* this is thread safe */ # define STRERROR(e) ( (e) > -1 && (e) < sys_nerr \ ? sys_errlist[(e)] : _AC_ERRNO_UNKNOWN ) #elif defined( HAVE_STRERROR ) /* this may not be thread safe */ /* and, yes, some implementations of strerror may return NULL */ # define STRERROR(e) ( strerror(e) \ ? strerror(e) : _AC_ERRNO_UNKNOWN ) #else /* this is thread safe */ # define STRERROR(e) ( _AC_ERRNO_UNKNOWN ) #endif #endif /* _AC_ERRNO_H */