#include <string.h>
#include <netdb.h>

extern struct protoent __protoent_pw;
extern char __protoent_buf[1000];

struct protoent *getprotobynumber(int proto) {
  struct protoent* tmp;
  if (getprotobynumber_r(proto,&__protoent_pw,__protoent_buf,sizeof(__protoent_buf),&tmp)==0)
    return tmp;
  return 0;
}