+ int i;
+ char **p;
+
+ switch (cmd)
+ {
+ case BIO_GHBN_CTRL_HITS:
+ return(BIO_ghbn_hits);
+ /* break; */
+ case BIO_GHBN_CTRL_MISSES:
+ return(BIO_ghbn_miss);
+ /* break; */
+ case BIO_GHBN_CTRL_CACHE_SIZE:
+ return(GHBN_NUM);
+ /* break; */
+ case BIO_GHBN_CTRL_GET_ENTRY:
+ if ((iarg >= 0) && (iarg <GHBN_NUM) &&
+ (ghbn_cache[iarg].order > 0))
+ {
+ p=(char **)parg;
+ if (p == NULL) return(0);
+ *p=ghbn_cache[iarg].name;
+ ghbn_cache[iarg].name[128]='\0';
+ return(1);
+ }
+ return(0);
+ /* break; */
+ case BIO_GHBN_CTRL_FLUSH:
+ for (i=0; i<GHBN_NUM; i++)
+ ghbn_cache[i].order=0;
+ break;
+ default:
+ return(0);
+ }
+ return(1);
+ }
+
+static struct hostent *ghbn_dup(struct hostent *a)
+ {
+ struct hostent *ret;
+ int i,j;
+
+ MemCheck_off();
+ ret=(struct hostent *)Malloc(sizeof(struct hostent));
+ if (ret == NULL) return(NULL);
+ memset(ret,0,sizeof(struct hostent));
+
+ for (i=0; a->h_aliases[i] != NULL; i++)
+ ;
+ i++;
+ ret->h_aliases=(char **)Malloc(sizeof(char *)*i);
+ memset(ret->h_aliases,0,sizeof(char *)*i);
+ if (ret == NULL) goto err;
+
+ for (i=0; a->h_addr_list[i] != NULL; i++)
+ ;
+ i++;
+ ret->h_addr_list=(char **)Malloc(sizeof(char *)*i);
+ memset(ret->h_addr_list,0,sizeof(char *)*i);
+ if (ret->h_addr_list == NULL) goto err;
+
+ j=strlen(a->h_name)+1;
+ if ((ret->h_name=Malloc(j)) == NULL) goto err;
+ memcpy((char *)ret->h_name,a->h_name,j+1);
+ for (i=0; a->h_aliases[i] != NULL; i++)
+ {
+ j=strlen(a->h_aliases[i])+1;
+ if ((ret->h_aliases[i]=Malloc(j)) == NULL) goto err;
+ memcpy(ret->h_aliases[i],a->h_aliases[i],j+1);
+ }
+ ret->h_length=a->h_length;
+ ret->h_addrtype=a->h_addrtype;
+ for (i=0; a->h_addr_list[i] != NULL; i++)
+ {
+ if ((ret->h_addr_list[i]=Malloc(a->h_length)) == NULL)
+ goto err;
+ memcpy(ret->h_addr_list[i],a->h_addr_list[i],a->h_length);
+ }
+ if (0)
+ {
+err:
+ if (ret != NULL)
+ ghbn_free(ret);
+ ret=NULL;
+ }
+ MemCheck_on();
+ return(ret);
+ }
+
+static void ghbn_free(struct hostent *a)
+ {
+ int i;
+
+ if(a == NULL)
+ return;
+
+ if (a->h_aliases != NULL)
+ {
+ for (i=0; a->h_aliases[i] != NULL; i++)
+ Free(a->h_aliases[i]);
+ Free(a->h_aliases);
+ }
+ if (a->h_addr_list != NULL)
+ {
+ for (i=0; a->h_addr_list[i] != NULL; i++)
+ Free(a->h_addr_list[i]);
+ Free(a->h_addr_list);
+ }
+ if (a->h_name != NULL) Free((char *)a->h_name);
+ Free(a);
+ }