ABORT2(2) FreeBSD System Calls Manual ABORT2(2)
NAME
abort2 - abort process with diagnostics
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
void
abort2(const char *why, int nargs, void **args);
DESCRIPTION
The abort2() system call causes the process to be killed and the
specified diagnostic message (with arguments) to be delivered by the
kernel to the syslogd(8) daemon.
The why argument points to a NUL-terminated string specifying a reason of
the program's termination (maximum 128 characters long). The args array
contains pointers which will be logged numerically (with the kernel's
`%p' printf(9) format). The nargs argument specifies the number of
pointers in args (maximum 16).
The abort2() system call is intended for use in situations where
continuation of a process is impossible or for other definitive reasons
is unwanted, and normal diagnostic channels cannot be trusted to deliver
the message.
RETURN VALUES
The abort2() function never returns.
The process is killed with SIGABRT unless the arguments to abort2() are
invalid, in which case SIGKILL is used.
EXAMPLES
#include <stdlib.h>
if (weight_kg > max_load) {
void *ptrs[3];
ptrs[0] = (void *)(intptr_t)weight_kg;
ptrs[1] = (void *)(intptr_t)max_load;
ptrs[2] = haystack;
abort2("Camel overloaded", 3, ptrs);
}
SEE ALSO
abort(3), exit(3)
HISTORY
The abort2() system call first appeared in FreeBSD 7.0.
AUTHORS
The abort2() system call was designed by Poul-Henning Kamp
<
[email protected]>. It was implemented by Wojciech A. Koszek
<
[email protected]>.
FreeBSD 14.1-RELEASE-p8 September 30, 2006 FreeBSD 14.1-RELEASE-p8