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Diffstat (limited to 'lib/libc/compat-43/killpg.2')
-rw-r--r-- | lib/libc/compat-43/killpg.2 | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/lib/libc/compat-43/killpg.2 b/lib/libc/compat-43/killpg.2 new file mode 100644 index 0000000..b57e406 --- /dev/null +++ b/lib/libc/compat-43/killpg.2 @@ -0,0 +1,95 @@ +.\" Copyright (c) 1980, 1991, 1993 +.\" The Regents of the University of California. 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. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. +.\" +.\" @(#)killpg.2 8.1 (Berkeley) 6/2/93 +.\" +.Dd June 2, 1993 +.Dt KILLPG 2 +.Os BSD 4 +.Sh NAME +.Nm killpg +.Nd send signal to a process group +.Sh SYNOPSIS +.Fd #include <signal.h> +.Ft int +.Fn killpg "pid_t pgrp" "int sig" +.Sh DESCRIPTION +.Fn Killpg +sends the signal +.Fa sig +to the process group +.Fa pgrp . +See +.Xr sigaction 2 +for a list of signals. +If +.Fa pgrp +is 0, +.Fn killpg +sends the signal to the sending process's process group. +.Pp +The sending process and members of the process group must +have the same effective user ID, or +the sender must be the super-user. +As a single special case the continue signal SIGCONT may be sent +to any process that is a descendant of the current process. +.Sh RETURN VALUES +Upon successful completion, a value of 0 is returned. Otherwise, +a value of -1 is returned and the global variable +.Va errno +is set to indicate the error. +.Sh ERRORS +.Fn Killpg +will fail and no signal will be sent if: +.Bl -tag -width Er +.It Bq Er EINVAL +.Fa Sig +is not a valid signal number. +.It Bq Er ESRCH +No process can be found in the process group specified by +.Fa pgrp . +.It Bq Er ESRCH +The process group was given as 0 +but the sending process does not have a process group. +.It Bq Er EPERM +The sending process is not the super-user and one or more +of the target processes has an effective user ID different from that +of the sending process. +.El +.Sh SEE ALSO +.Xr kill 2 , +.Xr getpgrp 2 , +.Xr sigaction 2 +.Sh HISTORY +The +.Nm +function call appeared in +.Bx 4.0 . |