File: sysfatal.c

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#include <lib9.h>
#include <stdarg.h>
#include "fmt.h"

extern char	*argv0;
extern void __fixargv0(void);
extern	void	exits(char*);
void (*_sysfatal)(char*, ...);

void
sysfatal(char *fmt, ...)
{
	char buf[256];
	va_list arg;

	va_start(arg, fmt);
	if(_sysfatal)
		(*_sysfatal)(fmt, arg);
	vseprint(buf, buf+sizeof buf, fmt, arg);
	va_end(arg);

	__fixargv0();
	fprint(2, "%s: %s\n", argv0 ? argv0 : "<prog>", buf);
	exits("fatal");
}