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#include "u.h"
#include "lib.h"
#include "dat.h"
#include "fns.h"
#include "error.h"
long
sysexits(uintptr_t *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 */
}
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