[hcoop/debian/courier-authlib.git] / liblock / lockfcntl.c

/*
** Copyright 1998 - 1999 Double Precision, Inc.  See COPYING for
** distribution information.
*/

/* $Id: lockfcntl.c,v 1.3 1999/12/06 13:18:55 mrsam Exp $ */
#if	HAVE_CONFIG_H
#include	"config.h"
#endif
#include	<sys/types.h>
#if	HAVE_FCNTL_H
#include	<fcntl.h>
#endif
#if	HAVE_SYS_FCNTL_H
#include	<sys/fcntl.h>
#endif
#include	"liblock.h"

int	ll_lockfd(int fd, int ltype, LL_OFFSET_TYPE start, LL_OFFSET_TYPE len)
{
#if HAS_FLOCK_T
flock_t	ft;
#else
struct flock ft;
#endif

	ft.l_type=ltype & ll_unlock ? F_UNLCK:
		ltype & ll_writelock ? F_WRLCK:F_RDLCK;
	ft.l_whence=ltype & ll_whence_curpos ? 1:
			ltype & ll_whence_end ? 2:0;
	ft.l_start=start;
	ft.l_len=len;

	return (fcntl(fd, (ltype & ll_unlock) == 0 && (ltype & ll_wait)
			? F_SETLKW:F_SETLK, &ft));
}
Commit	Line	Data
d9898ee8	1	/*
	2	** Copyright 1998 - 1999 Double Precision, Inc. See COPYING for
	3	** distribution information.
	4	*/
	5
	6	/* $Id: lockfcntl.c,v 1.3 1999/12/06 13:18:55 mrsam Exp $ */
	7	#if HAVE_CONFIG_H
	8	#include "config.h"
	9	#endif
	10	#include <sys/types.h>
	11	#if HAVE_FCNTL_H
	12	#include <fcntl.h>
	13	#endif
	14	#if HAVE_SYS_FCNTL_H
	15	#include <sys/fcntl.h>
	16	#endif
	17	#include "liblock.h"
	18
	19	int ll_lockfd(int fd, int ltype, LL_OFFSET_TYPE start, LL_OFFSET_TYPE len)
	20	{
	21	#if HAS_FLOCK_T
	22	flock_t ft;
	23	#else
	24	struct flock ft;
	25	#endif
	26
	27	ft.l_type=ltype & ll_unlock ? F_UNLCK:
	28	ltype & ll_writelock ? F_WRLCK:F_RDLCK;
	29	ft.l_whence=ltype & ll_whence_curpos ? 1:
	30	ltype & ll_whence_end ? 2:0;
	31	ft.l_start=start;
	32	ft.l_len=len;
	33
	34	return (fcntl(fd, (ltype & ll_unlock) == 0 && (ltype & ll_wait)
	35	? F_SETLKW:F_SETLK, &ft));
	36	}