diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/sys/Makefile.inc | 2 | ||||
| -rw-r--r-- | lib/libc/sys/uuidgen.2 | 83 |
2 files changed, 84 insertions, 1 deletions
diff --git a/lib/libc/sys/Makefile.inc b/lib/libc/sys/Makefile.inc index 5f78b60..5133fff 100644 --- a/lib/libc/sys/Makefile.inc +++ b/lib/libc/sys/Makefile.inc @@ -81,7 +81,7 @@ MAN+= _exit.2 accept.2 access.2 acct.2 adjtime.2 \ sigstack.2 sigsuspend.2 socket.2 socketpair.2 stat.2 statfs.2 \ swapon.2 symlink.2 sync.2 sysarch.2 syscall.2 \ truncate.2 umask.2 undelete.2 \ - unlink.2 utimes.2 vfork.2 wait.2 write.2 + unlink.2 utimes.2 uuidgen.2 vfork.2 wait.2 write.2 .if !defined(NO_P1003_1B) MAN+= sched_get_priority_max.2 sched_setparam.2 \ sched_setscheduler.2 sched_yield.2 diff --git a/lib/libc/sys/uuidgen.2 b/lib/libc/sys/uuidgen.2 new file mode 100644 index 0000000..9d6a522 --- /dev/null +++ b/lib/libc/sys/uuidgen.2 @@ -0,0 +1,83 @@ +.\" Copyright (c) 2002 Marcel Moolenaar +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd May 26, 2002 +.Dt UUIDGEN 2 +.Os +.Sh NAME +.Nm uuidgen +.Nd generate universally unique identifiers +.Sh LIBRARY +.Lb libc +.Sh SYNOPSIS +.In sys/uuid.h +.Ft int +.Fn uuidgen "uuid_t *store" "int count" +.Sh DESCRIPTION +The +.Nm +system call generates +.Fa count +universally unique identifiers (UUIDs) and writes them to the buffer +pointed to by +.Fa store . +The identifiers are generated according to the syntax and semantics of the +DCE version 1 variant of universally unique identifiers. When no IEEE 802 +address is available for the node field a random multicast address is +generated for each call. +.Pp +When multiple identifiers are requested, the +.Nm +system call will generate identifiers that are adjacent in time. +.Pp +Universally unique identifiers, also known as globally unique identifiers, +are normally represented as: +.Bd -literal -offset indent +63d81915-7140-11d6-903d-00022d09712b +.Ed +.Sh RETURN VALUES +.Rv -std +.Sh ERRORS +The +.Nm +system call can fail with: +.Bl -tag -width Er +.It Bq Er EFAULT +The buffer pointed to by +.Fa store +could not be written to for any or all identifiers. +.It Bq Er EINVAL +The +.Fa count +parameter is less than 1 or larger than the hard upper limit of 2048. +.El +.Sh SEE ALSO +.Xr uuidgen 1 +.Sh HISTORY +The +.Nm +system call first appeared in +.Fx 5.0 . |
