xref: /inferno-os/lib9/sysfatal.c (revision 37da2899f40661e3e9631e497da8dc59b971cbd0)
1*37da2899SCharles.Forsyth #include "lib9.h"
2*37da2899SCharles.Forsyth 
3*37da2899SCharles.Forsyth 
4*37da2899SCharles.Forsyth 
5*37da2899SCharles.Forsyth static void
_sysfatalimpl(char * fmt,va_list arg)6*37da2899SCharles.Forsyth _sysfatalimpl(char *fmt, va_list arg)
7*37da2899SCharles.Forsyth {
8*37da2899SCharles.Forsyth 	char buf[1024];
9*37da2899SCharles.Forsyth 
10*37da2899SCharles.Forsyth 	vseprint(buf, buf+sizeof(buf), fmt, arg);
11*37da2899SCharles.Forsyth 	if(argv0)
12*37da2899SCharles.Forsyth 		fprint(2, "%s: %s\n", argv0, buf);
13*37da2899SCharles.Forsyth 	else
14*37da2899SCharles.Forsyth 		fprint(2, "%s\n", buf);
15*37da2899SCharles.Forsyth 	exits(buf);
16*37da2899SCharles.Forsyth }
17*37da2899SCharles.Forsyth 
18*37da2899SCharles.Forsyth void (*_sysfatal)(char *fmt, va_list arg) = _sysfatalimpl;
19*37da2899SCharles.Forsyth 
20*37da2899SCharles.Forsyth void
sysfatal(char * fmt,...)21*37da2899SCharles.Forsyth sysfatal(char *fmt, ...)
22*37da2899SCharles.Forsyth {
23*37da2899SCharles.Forsyth 	va_list arg;
24*37da2899SCharles.Forsyth 
25*37da2899SCharles.Forsyth 	va_start(arg, fmt);
26*37da2899SCharles.Forsyth 	(*_sysfatal)(fmt, arg);
27*37da2899SCharles.Forsyth 	va_end(arg);
28*37da2899SCharles.Forsyth }
29