.\" Copyright (c) 2005 Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
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.\" $FreeBSD$
.Dd December 23, 2005
.Dt ABORT2 3
.Os
.Sh NAME
.Nm abort2
.Nd abort process with diagnostics.
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In stdlib.h
.Ft void
.Fo abort2
.Fa "char *why"
.Fa "int argc"
.Fa "void **args"
.Fc
.Sh DESCRIPTION
The
.Fn abort2
function causes the process to be killed and the specified diagnostic
message (with arguments) is delivered by the kernel to the 
.Xr syslogd 8
daemon.
.Pp
.Fa why
is NULL-terminated string containing reason of program termination (max 128 char long).
.Fa args
contains pointers which will be logged numerically (kernels '%p'
.Xr printf 9
format).
.Fa nargs
is number of pointers in
.Fa args ,
(max 16).
.Pp
.Fn abort2
is intended for use in situations where continuation of the process 
is impossible or for other definitive reasons unwanted, and normal
diagnostic channels cannot be trusted to deliver the message.
.Sh EXAMPLES
.Bd -literal -compact
#include <stdlib.h>

if (weight_kg > max_load) {
	void *ptrs[3];

	ptrs[0] = (void*)weight_kg;
	ptrs[1] = (void *)max_load;
	ptrs[2] = haystack;
	abort2("Camel overloaded", 3, ptrs);
}
.Ed
.Sh RETURN VALUES
The
.Fn abort2
function
never returns.
.Pp
The process is killed sith SIGABRT unless the arguments to
.Fn abort2
are invalid, in which case SIGKILL is used.
.Sh SEE ALSO
.Xr exit 3 ,
.Xr abort 3
.Sh HISTORY
The
.Fn abort2
function first appeared in
.Fx 7.0 .
.Sh AUTHORS
Design:
.An "Poul-Henning Kamp" Aq phk@FreeBSD.org .
Implementation:
.An "Wojciech A. Koszek" Aq dunstan@freebsd.czest.pl .