int isValidMac(char *value) 

{
  int r; //r=0:valid, else not valid
  char *reg="^[0-9A-F]\\([0-9A-F]\\:[0-9A-F]\\)\\{5\\}[0-9A-F]$";
  r=ereg(reg,value);
  return r;
}

int isValidIp(char *value) 

{
  int r; //r=0:valid, else not valid
  char *reg="^[0-9]\\{1,3\\}\\.[0-9]\\{1,3\\}\\.[0-9]\\{1,3\\}\\.[0-9]\\{1,3\\}$";
  r=ereg(reg,value);
  return r;
}
 

int ereg(char *pattern, char *value)

{
  int r,cflags=0;
  regmatch_t pm[10];
  const size_t nmatch = 10;
  regex_t reg;

  r=regcomp(&reg, pattern, cflags);
  if(r==0){
   r=regexec(&reg, value, nmatch, pm, cflags);
  }
  regfree(&reg);

 return r;
}