diff options
Diffstat (limited to 'usr/src/lib/libbc/libc/sys/common/flock.c')
| -rw-r--r-- | usr/src/lib/libbc/libc/sys/common/flock.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/usr/src/lib/libbc/libc/sys/common/flock.c b/usr/src/lib/libbc/libc/sys/common/flock.c new file mode 100644 index 0000000000..1c34632344 --- /dev/null +++ b/usr/src/lib/libbc/libc/sys/common/flock.c @@ -0,0 +1,51 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 1990 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/file.h> +#include <sys/fcntl.h> + +int flock(fd, operation) +int fd, operation; +{ + struct flock fl; + int cmd = F_SETLKW; + + fl.l_whence = 0; + fl.l_start = 0; + fl.l_len = 0; + fl.l_type = 0; + if (operation & LOCK_UN) + fl.l_type |= F_UNLCK; + if (operation & LOCK_SH) + fl.l_type |= F_RDLCK; + if (operation & LOCK_EX) + fl.l_type |= F_WRLCK; + if (operation & LOCK_NB) + cmd = F_SETLK; + return(bc_fcntl(fd, cmd, &fl)); +} |