--- lockf.3.orig 2009-11-07 14:51:38.000000000 -0800 +++ lockf.3 2009-11-07 14:51:40.000000000 -0800 @@ -40,7 +40,7 @@ .Sh SYNOPSIS .In unistd.h .Ft int -.Fn lockf "int filedes" "int function" "off_t size" +.Fn lockf "int fildes" "int function" "off_t size" .Sh DESCRIPTION The .Fn lockf @@ -49,10 +49,10 @@ Calls to .Fn lockf from other processes which attempt to lock the locked file section will either return an error value or block until the section becomes unlocked. -All the locks for a process are removed when the process terminates. +All of the locks for a process are removed when the process terminates. .Pp The argument -.Fa filedes +.Fa fildes is an open file descriptor. The file descriptor must have been opened either for write-only .Dv ( O_WRONLY ) @@ -207,7 +207,7 @@ or and the section is already locked by another process. .It Bq Er EBADF The argument -.Fa filedes +.Fa fildes is not a valid open file descriptor. .Pp The argument @@ -217,7 +217,7 @@ is or .Dv F_TLOCK , and -.Fa filedes +.Fa fildes is not a valid file descriptor open for writing. .It Bq Er EDEADLK The argument @@ -236,25 +236,29 @@ was interrupted by the delivery of a sig The argument .Fa function is not one of -.Dv F_ULOCK , .Dv F_LOCK , -.Dv F_TLOCK +.Dv F_TEST , +.Dv F_TLOCK , or -.Dv F_TEST . +.Dv F_ULOCK . .Pp The argument -.Fa filedes -refers to a file that does not support locking. +.Fa fildes +refers to a file that does not support advisory locking. .It Bq Er ENOLCK The argument .Fa function is -.Dv F_ULOCK , -.Dv F_LOCK -or +.Dv F_LOCK , .Dv F_TLOCK , +or +.Dv F_ULOCK and satisfying the lock or unlock request would result in the number of locked regions in the system exceeding a system-imposed limit. +.It Bq Er EOPNOTSUPP +The argument +.Fa fildes +refers to a socket; these do not support advisory locking. .El .Sh SEE ALSO .Xr fcntl 2 ,