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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
     〈phk@FreeBSD.org〉.  It was implemented by Wojciech A. Koszek
     〈dunstan@freebsd.czest.pl〉.