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.Dd September 30, 2006 .Dt ABORT2 2 .Os .Sh NAME .Nm abort2 .Nd "abort process with diagnostics" .Sh LIBRARY .Lb libc .Sh SYNOPSIS n stdlib.h .Ft void .Fn abort2 "const char *why" "int nargs" "void **args" .Sh DESCRIPTION The .Fn abort2 system call causes the process to be killed and the specified diagnostic message (with arguments) to be delivered by the kernel to the .Xr syslogd 8 daemon.
p The .Fa why argument points to a .Dv NUL- Ns terminated string specifying a reason of the program's termination (maximum 128 characters long). The .Fa args array contains pointers which will be logged numerically (with the kernel's .Ql %p .Xr printf 9 format). The .Fa nargs argument specifies the number of pointers in .Fa args (maximum 16).
p The .Fn 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. .Sh RETURN VALUES The .Fn abort2 function never returns.
p The process is killed with .Dv SIGABRT unless the arguments to .Fn abort2 are invalid, in which case .Dv SIGKILL is used. .Sh EXAMPLES d -literal -compact #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); } .Ed .Sh SEE ALSO .Xr abort 3 , .Xr exit 3 .Sh HISTORY The .Fn abort2 system call first appeared in .Fx 7.0 . .Sh AUTHORS .An -nosplit The .Fn abort2 system call was designed by .An Poul-Henning Kamp Aq Mt phk@FreeBSD.org . It was implemented by .An Wojciech A. Koszek Aq Mt dunstan@freebsd.czest.pl .