oracular (2) abort2.2freebsd.gz

Provided by: freebsd-manpages_12.2-2_all bug

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>.