-/*
- ling.l_onoff=1;
- ling.l_linger=0;
- i=setsockopt(ret,SOL_SOCKET,SO_LINGER,(char *)&ling,sizeof(ling));
- if (i < 0) { perror("linger"); return(0); }
- i=0;
- i=setsockopt(ret,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
- if (i < 0) { perror("keepalive"); return(0); }
-*/
-
- if (host == NULL) goto end;
-#ifndef BIT_FIELD_LIMITS
- /* I should use WSAAsyncGetHostByName() under windows */
- h1=gethostbyaddr((char *)&from.sin_addr.s_addr,
- sizeof(from.sin_addr.s_addr),AF_INET);
-#else
- h1=gethostbyaddr((char *)&from.sin_addr,
- sizeof(struct in_addr),AF_INET);
-#endif
- if (h1 == NULL)
- {
- BIO_printf(bio_err,"bad gethostbyaddr\n");
- *host=NULL;
- /* return(0); */
- }
- else
- {
- if ((*host=(char *)OPENSSL_malloc(strlen(h1->h_name)+1)) == NULL)
- {
- perror("OPENSSL_malloc");
- return(0);
- }
- strcpy(*host,h1->h_name);
-
- h2=GetHostByName(*host);
- if (h2 == NULL)
- {
- BIO_printf(bio_err,"gethostbyname failure\n");
- return(0);
- }
- i=0;
- if (h2->h_addrtype != AF_INET)
- {
- BIO_printf(bio_err,"gethostbyname addr is not AF_INET\n");
- return(0);
- }
- }
-end:
- *sock=ret;
- return(1);
- }
-
-int extract_host_port(char *str, char **host_ptr, unsigned char *ip,
- short *port_ptr)
- {
- char *h,*p;
-
- h=str;
- p=strchr(str,':');
- if (p == NULL)
- {
- BIO_printf(bio_err,"no port defined\n");
- return(0);
- }
- *(p++)='\0';
-
- if ((ip != NULL) && !host_ip(str,ip))
- goto err;
- if (host_ptr != NULL) *host_ptr=h;
-
- if (!extract_port(p,port_ptr))
- goto err;
- return(1);
-err:
- return(0);
- }
-
-static int host_ip(char *str, unsigned char ip[4])
- {
- unsigned int in[4];
- int i;
-
- if (sscanf(str,"%u.%u.%u.%u",&(in[0]),&(in[1]),&(in[2]),&(in[3])) == 4)
- {
- for (i=0; i<4; i++)
- if (in[i] > 255)
- {
- BIO_printf(bio_err,"invalid IP address\n");
- goto err;
- }
- ip[0]=in[0];
- ip[1]=in[1];
- ip[2]=in[2];
- ip[3]=in[3];
- }
- else
- { /* do a gethostbyname */
- struct hostent *he;
-
- if (!ssl_sock_init()) return(0);
-
- he=GetHostByName(str);
- if (he == NULL)
- {
- BIO_printf(bio_err,"gethostbyname failure\n");
- goto err;
- }
- /* cast to short because of win16 winsock definition */
- if ((short)he->h_addrtype != AF_INET)
- {
- BIO_printf(bio_err,"gethostbyname addr is not AF_INET\n");
- return(0);
- }
- ip[0]=he->h_addr_list[0][0];
- ip[1]=he->h_addr_list[0][1];
- ip[2]=he->h_addr_list[0][2];
- ip[3]=he->h_addr_list[0][3];
- }
- return(1);
-err:
- return(0);
- }
-
-int extract_port(char *str, short *port_ptr)
- {
- int i;
- struct servent *s;
-
- i=atoi(str);
- if (i != 0)
- *port_ptr=(unsigned short)i;
- else
- {
- s=getservbyname(str,"tcp");
- if (s == NULL)
- {
- BIO_printf(bio_err,"getservbyname failure for %s\n",str);
- return(0);
- }
- *port_ptr=ntohs((unsigned short)s->s_port);
- }
- return(1);
- }
-
-#define GHBN_NUM 4
-static struct ghbn_cache_st
- {
- char name[128];
- struct hostent ent;
- unsigned long order;
- } ghbn_cache[GHBN_NUM];
-
-static unsigned long ghbn_hits=0L;
-static unsigned long ghbn_miss=0L;
-
-static struct hostent *GetHostByName(char *name)
- {
- struct hostent *ret;
- int i,lowi=0;
- unsigned long low= (unsigned long)-1;
-
- for (i=0; i<GHBN_NUM; i++)
- {
- if (low > ghbn_cache[i].order)
- {
- low=ghbn_cache[i].order;
- lowi=i;
- }
- if (ghbn_cache[i].order > 0)
- {
- if (strncmp(name,ghbn_cache[i].name,128) == 0)
- break;
- }
- }
- if (i == GHBN_NUM) /* no hit*/
- {
- ghbn_miss++;
- ret=gethostbyname(name);
- if (ret == NULL) return(NULL);
- /* else add to cache */
- if(strlen(name) < sizeof ghbn_cache[0].name)
- {
- strcpy(ghbn_cache[lowi].name,name);
- memcpy((char *)&(ghbn_cache[lowi].ent),ret,sizeof(struct hostent));
- ghbn_cache[lowi].order=ghbn_miss+ghbn_hits;
- }
- return(ret);
- }
- else
- {
- ghbn_hits++;
- ret= &(ghbn_cache[i].ent);
- ghbn_cache[i].order=ghbn_miss+ghbn_hits;
- return(ret);
- }
- }
+ /*
+ * If we ended with an alert being sent, but still with data in the
+ * network buffer to be read, then calling BIO_closesocket() will
+ * result in a TCP-RST being sent. On some platforms (notably
+ * Windows) then this will result in the peer immediately abandoning
+ * the connection including any buffered alert data before it has
+ * had a chance to be read. Shutting down the sending side first,
+ * and then closing the socket sends TCP-FIN first followed by
+ * TCP-RST. This seems to allow the peer to read the alert data.
+ */
+ shutdown(sock, 1); /* SHUT_WR */
+ BIO_closesocket(sock);
+ } else {
+ i = (*cb)(asock, type, protocol, context);
+ }
+
+ if (naccept != -1)
+ naccept--;
+ if (i < 0 || naccept == 0) {
+ BIO_closesocket(asock);
+ ret = i;
+ break;
+ }
+ }
+ end:
+# ifdef AF_UNIX
+ if (family == AF_UNIX)
+ unlink(host);
+# endif
+ BIO_ADDR_free(ourpeer);
+ ourpeer = NULL;
+ return ret;
+}