/* crypto/bio/b_sock.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
#ifndef NO_SOCK
#include <stdio.h>
+#include <stdlib.h>
#include <errno.h>
#define USE_SOCKETS
#include "cryptlib.h"
-#include "bio.h"
+#include <openssl/bio.h>
/* BIOerr(BIO_F_WSASTARTUP,BIO_R_WSASTARTUP ); */
#define SOCKET_PROTOCOL IPPROTO_TCP
#endif
+#ifdef SO_MAXCONN
+#define MAX_LISTEN SOMAXCONN
+#elif defined(SO_MAXCONN)
+#define MAX_LISTEN SO_MAXCONN
+#else
+#define MAX_LISTEN 32
+#endif
+
#ifdef WINDOWS
static int wsa_init_done=0;
#endif
-unsigned long BIO_ghbn_hits=0L;
-unsigned long BIO_ghbn_miss=0L;
+static unsigned long BIO_ghbn_hits=0L;
+static unsigned long BIO_ghbn_miss=0L;
+
+#define GHBN_NUM 4
+static struct ghbn_cache_st
+ {
+ char name[129];
+ struct hostent *ent;
+ unsigned long order;
+ } ghbn_cache[GHBN_NUM];
#ifndef NOPROTO
-static int get_ip(char *str,unsigned char *ip);
+static int get_ip(const char *str,unsigned char *ip);
+static void ghbn_free(struct hostent *a);
+static struct hostent *ghbn_dup(struct hostent *a);
#else
static int get_ip();
+static void ghbn_free();
+static struct hostent *ghbn_dup();
#endif
-int BIO_get_host_ip(str,ip)
-char *str;
-unsigned char *ip;
+int BIO_get_host_ip(const char *str, unsigned char *ip)
{
int i;
struct hostent *he;
if (i < 0)
{
BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_INVALID_IP_ADDRESS);
+ ERR_add_error_data(2,"host=",str);
return(0);
}
else
if (he == NULL)
{
BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_BAD_HOSTNAME_LOOKUP);
+ ERR_add_error_data(2,"host=",str);
return(0);
}
if ((short)he->h_addrtype != AF_INET)
{
BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
+ ERR_add_error_data(2,"host=",str);
return(0);
}
for (i=0; i<4; i++)
return(1);
}
-int BIO_get_port(str,port_ptr)
-char *str;
-short *port_ptr;
+int BIO_get_port(const char *str, unsigned short *port_ptr)
{
int i;
struct servent *s;
#endif
else
{
- SYSerr(SYS_F_GETSERVBYNAME,errno);
+ SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error());
+ ERR_add_error_data(3,"service='",str,"'");
return(0);
}
return(1);
return(1);
}
-int BIO_sock_error(sock)
-int sock;
+int BIO_sock_error(int sock)
{
- int j,i,size;
+ int j,i;
+ int size;
size=sizeof(int);
-
- i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(char *)&j,&size);
+ /* Note: under Windows the third parameter is of type (char *)
+ * whereas under other systems it is (void *) if you don't have
+ * a cast it will choke the compiler: if you do have a cast then
+ * you can either go for (char *) or (void *).
+ */
+ i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(void *)&j,&size);
if (i < 0)
return(1);
else
return(j);
}
-#define GHBN_NUM 4
-static struct ghbn_cache_st
+long BIO_ghbn_ctrl(int cmd, int iarg, char *parg)
{
- char name[128];
- struct hostent ent;
- unsigned long order;
- } ghbn_cache[GHBN_NUM];
+ 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);
+ }
-struct hostent *BIO_gethostbyname(name)
-char *name;
+struct hostent *BIO_gethostbyname(const char *name)
{
struct hostent *ret;
- int i,lowi=0;
+ int i,lowi=0,j;
unsigned long low= (unsigned long)-1;
+/* return(gethostbyname(name)); */
+
CRYPTO_w_lock(CRYPTO_LOCK_BIO_GETHOSTBYNAME);
- if (strlen(name) < 128)
+ j=strlen(name);
+ if (j < 128)
{
for (i=0; i<GHBN_NUM; i++)
{
{
BIO_ghbn_miss++;
ret=gethostbyname(name);
+
if (ret == NULL) return(NULL);
+ if (j > 128) return(ret); /* too big to cache */
+
/* else add to cache */
+ if (ghbn_cache[lowi].ent != NULL)
+ ghbn_free(ghbn_cache[lowi].ent);
+
strncpy(ghbn_cache[lowi].name,name,128);
- memcpy((char *)&(ghbn_cache[lowi].ent),ret,sizeof(struct hostent));
+ ghbn_cache[lowi].ent=ghbn_dup(ret);
ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits;
}
else
{
BIO_ghbn_hits++;
- ret= &(ghbn_cache[i].ent);
+ ret= ghbn_cache[i].ent;
ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits;
}
CRYPTO_w_unlock(CRYPTO_LOCK_BIO_GETHOSTBYNAME);
return(ret);
}
-int BIO_sock_init()
+int BIO_sock_init(void)
{
#ifdef WINDOWS
static struct WSAData wsa_state;
return(1);
}
-void BIO_sock_cleanup()
+void BIO_sock_cleanup(void)
{
#ifdef WINDOWS
if (wsa_init_done)
#endif
}
-int BIO_socket_ioctl(fd,type,arg)
-int fd;
-long type;
-unsigned long *arg;
+int BIO_socket_ioctl(int fd, long type, unsigned long *arg)
{
- int i,err;
+ int i;
-#ifdef WINDOWS
i=ioctlsocket(fd,type,arg);
-#else
- i=ioctl(fd,type,arg);
-#endif
if (i < 0)
- {
-#ifdef WINDOWS
- err=WSAGetLastError();
-#else
- err=errno;
-#endif
- SYSerr(SYS_F_IOCTLSOCKET,err);
- }
+ SYSerr(SYS_F_IOCTLSOCKET,get_last_socket_error());
return(i);
}
/* The reason I have implemented this instead of using sscanf is because
* Visual C 1.52c gives an unresolved external when linking a DLL :-( */
-static int get_ip(str,ip)
-char *str;
-unsigned char ip[4];
+static int get_ip(const char *str, unsigned char ip[4])
{
unsigned int tmp[4];
int num=0,c,ok=0;
return(1);
}
-int BIO_get_accept_socket(host)
-char *host;
+int BIO_get_accept_socket(char *host, int bind_mode)
{
int ret=0;
- struct sockaddr_in server;
- int s= -1;
+ struct sockaddr_in server,client;
+ int s= -1,cs;
unsigned char ip[4];
- short port;
- char *str,*h,*p,*e;
+ unsigned short port;
+ char *str,*e;
+ const char *h,*p;
unsigned long l;
+ int err_num;
if (!BIO_sock_init()) return(INVALID_SOCKET);
memset((char *)&server,0,sizeof(server));
server.sin_family=AF_INET;
- server.sin_port=htons((unsigned short)port);
+ server.sin_port=htons(port);
if (strcmp(h,"*") == 0)
server.sin_addr.s_addr=INADDR_ANY;
if (!BIO_get_host_ip(h,&(ip[0]))) return(INVALID_SOCKET);
l=(unsigned long)
((unsigned long)ip[0]<<24L)|
- ((unsigned long)ip[0]<<16L)|
- ((unsigned long)ip[0]<< 8L)|
- ((unsigned long)ip[0]);
+ ((unsigned long)ip[1]<<16L)|
+ ((unsigned long)ip[2]<< 8L)|
+ ((unsigned long)ip[3]);
server.sin_addr.s_addr=htonl(l);
}
+again:
s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
if (s == INVALID_SOCKET)
{
-#ifdef WINDOWS
- errno=WSAGetLastError();
-#endif
- SYSerr(SYS_F_SOCKET,errno);
- BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET);
+ SYSerr(SYS_F_SOCKET,get_last_socket_error());
+ ERR_add_error_data(3,"port='",host,"'");
+ BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_CREATE_SOCKET);
goto err;
}
+
+#ifdef SO_REUSEADDR
+ if (bind_mode == BIO_BIND_REUSEADDR)
+ {
+ int i=1;
+
+ ret=setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&i,sizeof(i));
+ bind_mode=BIO_BIND_NORMAL;
+ }
+#endif
if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1)
{
-#ifdef WINDOWS
- errno=WSAGetLastError();
+#ifdef SO_REUSEADDR
+ err_num=get_last_socket_error();
+ if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) &&
+ (err_num == EADDRINUSE))
+ {
+ memcpy((char *)&client,(char *)&server,sizeof(server));
+ if (strcmp(h,"*") == 0)
+ client.sin_addr.s_addr=htonl(0x7F000001);
+ cs=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
+ if (cs != INVALID_SOCKET)
+ {
+ int ii;
+ ii=connect(cs,(struct sockaddr *)&client,
+ sizeof(client));
+ closesocket(cs);
+ if (ii == INVALID_SOCKET)
+ {
+ bind_mode=BIO_BIND_REUSEADDR;
+ closesocket(s);
+ goto again;
+ }
+ /* else error */
+ }
+ /* else error */
+ }
#endif
- SYSerr(SYS_F_BIND,errno);
+ SYSerr(SYS_F_BIND,err_num);
+ ERR_add_error_data(3,"port='",host,"'");
BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET);
goto err;
}
- if (listen(s,5) == -1)
+ if (listen(s,MAX_LISTEN) == -1)
{
-#ifdef WINDOWS
- errno=WSAGetLastError();
-#endif
- SYSerr(SYS_F_LISTEN,errno);
+ SYSerr(SYS_F_BIND,get_last_socket_error());
+ ERR_add_error_data(3,"port='",host,"'");
BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_LISTEN_SOCKET);
goto err;
}
if (str != NULL) Free(str);
if ((ret == 0) && (s != INVALID_SOCKET))
{
-#ifdef WINDOWS
closesocket(s);
-#else
- close(s);
-#endif
s= INVALID_SOCKET;
}
return(s);
}
-int BIO_accept(sock,addr)
-int sock;
-char **addr;
+int BIO_accept(int sock, char **addr)
{
int ret=INVALID_SOCKET;
static struct sockaddr_in from;
unsigned long l;
- short port;
+ unsigned short port;
int len;
char *p;
ret=accept(sock,(struct sockaddr *)&from,&len);
if (ret == INVALID_SOCKET)
{
-#ifdef WINDOWS
- errno=WSAGetLastError();
-#endif
- SYSerr(SYS_F_ACCEPT,errno);
+ SYSerr(SYS_F_ACCEPT,get_last_socket_error());
BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR);
goto end;
}
return(ret);
}
-int BIO_set_tcp_ndelay(s,on)
-int s;
-int on;
+int BIO_set_tcp_ndelay(int s, int on)
{
int ret=0;
#if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP))
}
#endif
+int BIO_socket_nbio(int s, int mode)
+ {
+ int ret= -1;
+ unsigned long l;
+
+ l=mode;
+#ifdef FIONBIO
+ ret=BIO_socket_ioctl(s,FIONBIO,&l);
+#endif
+ return(ret == 0);
+ }
projects / openssl.git / blobdiff