#include stdio.h
/*
** otoi -- convert unsigned octal string to integer nbr
**          returns field size, else ERR on error
*/
otoi(octstr, nbr) char *octstr; int *nbr; {
  int d, t; d=0;
  *nbr=0;
  while((*octstr>'0')&(*octstr<='7')) {
    t=*nbr;
    t=(t<<3) +(*octstr++ - '0');
    if ((t>=0)&(*nbr<0)) return ERR;
    d++; *nbr=t;
    }
  return d;
  }