Subversion Repositories planix.SVN

#include        "u.h"
#include        "lib.h"
#include        "dat.h"
#include        "fns.h"
#include        "error.h"

long
sysexits(ulong *arg)
{
        char *status;
        char *inval = "invalid exit string";
        char buf[ERRMAX];

        status = (char*)arg[0];
        if(status){
                if(waserror())
                        status = inval;
                else{
                        validaddr((ulong)status, 1, 0);
                        if(vmemchr(status, 0, ERRMAX) == 0){
                                memmove(buf, status, ERRMAX);
                                buf[ERRMAX-1] = 0;
                                status = buf;
                        }
                }
                poperror();

        }
        pexit(status, 1);
        return 0;               /* not reached */
}