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#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <errno.h>
#include <arpa/nameser.h>
#include <resolv.h>
extern int __dns_search;
extern char *__dns_domains[];
int res_search(const char *dname, int class, int type, unsigned char *answer, int anslen) {
const char *tmp=dname;
char Buf[MAXDNAME+1];
int res;
int len=strlen(dname);
int count=0;
memmove(Buf,dname,len);
Buf[len]=Buf[MAXDNAME]=0;
// printf("appending %d: %p\n",count,__dns_domains[count]);
while ((res=res_query(tmp,class,type,answer,anslen))<0) {
if (count==__dns_search) break;
Buf[len]='.';
// printf("appending %d: %p (%s)\n",count,__dns_domains[count],__dns_domains[count]);
memccpy(Buf+len+1,__dns_domains[count],0,MAXDNAME-len-1);
tmp=Buf;
++count;
}
return res;
}
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