File: dns_dntol.c

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rbldnsd 0.996b
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/* $Id: dns_dntol.c,v 1.3 2003-04-03 18:05:22 mjt Exp $
 * dns_dntol() lowercases a domain name
 */

#include "dns.h"

unsigned dns_dntol(const unsigned char *srcdn, unsigned char *dstdn) {
  unsigned c;
  const unsigned char *s = srcdn;
  while((c = (*dstdn++ = *s++)) != 0) {
    do {
      *dstdn++ = dns_dnlc(*s);
      ++s;
    } while(--c);
  }
  return (unsigned)(s - srcdn);
}