openldap/include/ac/unistd.h
1999-03-26 17:43:23 +00:00

93 lines
2.1 KiB
C

/* Generic unistd.h */
/*
* Copyright 1998,1999 The OpenLDAP Foundation, Redwood City, California, USA
* All rights reserved.
*
* Redistribution and use in source and binary forms 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_UNISTD_H
#define _AC_UNISTD_H
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
/* crypt() may be defined in a separate include file */
#if HAVE_CRYPT_H
# include <crypt.h>
#else
extern char *crypt();
#endif
#ifndef HAVE_GETPASS
extern char* getpass LDAP_P((const char *getpass));
#endif
/* getopt() defines may be in separate include file */
#if HAVE_GETOPT_H
# include <getopt.h>
#elif !defined(HAVE_GETOPT)
/* no getopt, assume we need getopt-compat.h */
# include <getopt-compat.h>
#else
/* assume we need to declare these externs */
extern char *optarg;
extern int optind, opterr, optopt;
#endif
#ifndef HAVE_TEMPNAM
extern char *tempnam(const char *tmpdir, const char *prefix);
#endif
#ifndef HAVE_MKTEMP
extern char *mktemp(char *);
#endif
/* Setup file locking macros */
#if !defined( ldap_lockf ) && HAVE_LOCKF && defined( F_LOCK )
# define ldap_lockf(x) lockf(fileno(x), F_LOCK, 0)
# define ldap_unlockf(x) lockf(fileno(x), F_ULOCK, 0)
#endif
#if !defined( ldap_lockf ) && HAVE_FCNTL
# ifdef HAVE_FCNTL_H
# include <fcntl.h>
# endif
# ifdef F_WRLCK
# ifndef NEED_FCNTL_LOCKING
# define NEED_FCNTL_LOCKING
# endif
# include <lutil_lockf.h>
# define ldap_lockf(x) lutil_lockf(x)
# define ldap_unlockf(x) lutil_unlockf(x)
# endif
#endif
#if !defined( ldap_lockf ) && HAVE_FLOCK
# if HAVE_SYS_FILE_H
# include <sys/file.h>
# endif
# ifdef LOCK_EX
# define ldap_lockf(x) flock(fileno(x), LOCK_EX)
# define ldap_unlockf(x) flock(fileno(x), LOCK_UN)
# endif
#endif
#if !defined( ldap_lockf )
/* use some simplistic locking method */
# include <lutil_lockf.h>
# define ldap_lockf(x) lutil_lockf(x)
# define ldap_unlockf(x) lutil_unlockf(x)
#endif
#endif /* _AC_UNISTD_H */