pr_bynumber
static struct protoent * pr_bynumber(struct irs_pr *, int);
pr->bynumber = pr_bynumber;
static struct protoent * pr_bynumber(struct irs_pr *, int);
pr->bynumber = pr_bynumber;
static struct protoent * pr_bynumber(struct irs_pr *, int);
pr->bynumber = pr_bynumber;
pr->bynumber = pr_bynumber;
static struct protoent * pr_bynumber(struct irs_pr *, int);