res_querydomain.c raw

   1  #include <resolv.h>
   2  #include <string.h>
   3  
   4  int res_querydomain(const char *name, const char *domain, int class, int type, unsigned char *dest, int len)
   5  {
   6  	char tmp[255];
   7  	size_t nl = strnlen(name, 255);
   8  	size_t dl = strnlen(domain, 255);
   9  	if (nl+dl+1 > 254) return -1;
  10  	memcpy(tmp, name, nl);
  11  	tmp[nl] = '.';
  12  	memcpy(tmp+nl+1, domain, dl+1);
  13  	return res_query(tmp, class, type, dest, len);
  14  }
  15