Initial import

1 files changed, 652 insertions, 0 deletions

diff --git a/openssl/crypto/bio/bss_conn.c b/openssl/crypto/bio/bss_conn.c
new file mode 100644
index 00000000..c1472785
--- /dev/null
+++ b/openssl/crypto/bio/bss_conn.c
@@ -0,0 +1,652 @@
+/* crypto/bio/bss_conn.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#define USE_SOCKETS
+#include "cryptlib.h"
+#include <openssl/bio.h>
+
+#ifndef OPENSSL_NO_SOCK
+
+#ifdef OPENSSL_SYS_WIN16
+#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
+#else
+#define SOCKET_PROTOCOL IPPROTO_TCP
+#endif
+
+#if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
+/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
+#undef FIONBIO
+#endif
+
+
+typedef struct bio_connect_st
+	{
+	int state;
+
+	char *param_hostname;
+	char *param_port;
+	int nbio;
+
+	unsigned char ip[4];
+	unsigned short port;
+
+	struct sockaddr_in them;
+
+	/* int socket; this will be kept in bio->num so that it is
+	 * compatible with the bss_sock bio */ 
+
+	/* called when the connection is initially made
+	 *  callback(BIO,state,ret);  The callback should return
+	 * 'ret'.  state is for compatibility with the ssl info_callback */
+	int (*info_callback)(const BIO *bio,int state,int ret);
+	} BIO_CONNECT;
+
+static int conn_write(BIO *h, const char *buf, int num);
+static int conn_read(BIO *h, char *buf, int size);
+static int conn_puts(BIO *h, const char *str);
+static long conn_ctrl(BIO *h, int cmd, long arg1, void *arg2);
+static int conn_new(BIO *h);
+static int conn_free(BIO *data);
+static long conn_callback_ctrl(BIO *h, int cmd, bio_info_cb *);
+
+static int conn_state(BIO *b, BIO_CONNECT *c);
+static void conn_close_socket(BIO *data);
+BIO_CONNECT *BIO_CONNECT_new(void );
+void BIO_CONNECT_free(BIO_CONNECT *a);
+
+static BIO_METHOD methods_connectp=
+	{
+	BIO_TYPE_CONNECT,
+	"socket connect",
+	conn_write,
+	conn_read,
+	conn_puts,
+	NULL, /* connect_gets, */
+	conn_ctrl,
+	conn_new,
+	conn_free,
+	conn_callback_ctrl,
+	};
+
+static int conn_state(BIO *b, BIO_CONNECT *c)
+	{
+	int ret= -1,i;
+	unsigned long l;
+	char *p,*q;
+	int (*cb)(const BIO *,int,int)=NULL;
+
+	if (c->info_callback != NULL)
+		cb=c->info_callback;
+
+	for (;;)
+		{
+		switch (c->state)
+			{
+		case BIO_CONN_S_BEFORE:
+			p=c->param_hostname;
+			if (p == NULL)
+				{
+				BIOerr(BIO_F_CONN_STATE,BIO_R_NO_HOSTNAME_SPECIFIED);
+				goto exit_loop;
+				}
+			for ( ; *p != '\0'; p++)
+				{
+				if ((*p == ':') || (*p == '/')) break;
+				}
+
+			i= *p;
+			if ((i == ':') || (i == '/'))
+				{
+
+				*(p++)='\0';
+				if (i == ':')
+					{
+					for (q=p; *q; q++)
+						if (*q == '/')
+							{
+							*q='\0';
+							break;
+							}
+					if (c->param_port != NULL)
+						OPENSSL_free(c->param_port);
+					c->param_port=BUF_strdup(p);
+					}
+				}
+
+			if (c->param_port == NULL)
+				{
+				BIOerr(BIO_F_CONN_STATE,BIO_R_NO_PORT_SPECIFIED);
+				ERR_add_error_data(2,"host=",c->param_hostname);
+				goto exit_loop;
+				}
+			c->state=BIO_CONN_S_GET_IP;
+			break;
+
+		case BIO_CONN_S_GET_IP:
+			if (BIO_get_host_ip(c->param_hostname,&(c->ip[0])) <= 0)
+				goto exit_loop;
+			c->state=BIO_CONN_S_GET_PORT;
+			break;
+
+		case BIO_CONN_S_GET_PORT:
+			if (c->param_port == NULL)
+				{
+				/* abort(); */
+				goto exit_loop;
+				}
+			else if (BIO_get_port(c->param_port,&c->port) <= 0)
+				goto exit_loop;
+			c->state=BIO_CONN_S_CREATE_SOCKET;
+			break;
+
+		case BIO_CONN_S_CREATE_SOCKET:
+			/* now setup address */
+			memset((char *)&c->them,0,sizeof(c->them));
+			c->them.sin_family=AF_INET;
+			c->them.sin_port=htons((unsigned short)c->port);
+			l=(unsigned long)
+				((unsigned long)c->ip[0]<<24L)|
+				((unsigned long)c->ip[1]<<16L)|
+				((unsigned long)c->ip[2]<< 8L)|
+				((unsigned long)c->ip[3]);
+			c->them.sin_addr.s_addr=htonl(l);
+			c->state=BIO_CONN_S_CREATE_SOCKET;
+
+			ret=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
+			if (ret == INVALID_SOCKET)
+				{
+				SYSerr(SYS_F_SOCKET,get_last_socket_error());
+				ERR_add_error_data(4,"host=",c->param_hostname,
+					":",c->param_port);
+				BIOerr(BIO_F_CONN_STATE,BIO_R_UNABLE_TO_CREATE_SOCKET);
+				goto exit_loop;
+				}
+			b->num=ret;
+			c->state=BIO_CONN_S_NBIO;
+			break;
+
+		case BIO_CONN_S_NBIO:
+			if (c->nbio)
+				{
+				if (!BIO_socket_nbio(b->num,1))
+					{
+					BIOerr(BIO_F_CONN_STATE,BIO_R_ERROR_SETTING_NBIO);
+					ERR_add_error_data(4,"host=",
+						c->param_hostname,
+						":",c->param_port);
+					goto exit_loop;
+					}
+				}
+			c->state=BIO_CONN_S_CONNECT;
+
+#if defined(SO_KEEPALIVE) && !defined(OPENSSL_SYS_MPE)
+			i=1;
+			i=setsockopt(b->num,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
+			if (i < 0)
+				{
+				SYSerr(SYS_F_SOCKET,get_last_socket_error());
+				ERR_add_error_data(4,"host=",c->param_hostname,
+					":",c->param_port);
+				BIOerr(BIO_F_CONN_STATE,BIO_R_KEEPALIVE);
+				goto exit_loop;
+				}
+#endif
+			break;
+
+		case BIO_CONN_S_CONNECT:
+			BIO_clear_retry_flags(b);
+			ret=connect(b->num,
+				(struct sockaddr *)&c->them,
+				sizeof(c->them));
+			b->retry_reason=0;
+			if (ret < 0)
+				{
+				if (BIO_sock_should_retry(ret))
+					{
+					BIO_set_retry_special(b);
+					c->state=BIO_CONN_S_BLOCKED_CONNECT;
+					b->retry_reason=BIO_RR_CONNECT;
+					}
+				else
+					{
+					SYSerr(SYS_F_CONNECT,get_last_socket_error());
+					ERR_add_error_data(4,"host=",
+						c->param_hostname,
+						":",c->param_port);
+					BIOerr(BIO_F_CONN_STATE,BIO_R_CONNECT_ERROR);
+					}
+				goto exit_loop;
+				}
+			else
+				c->state=BIO_CONN_S_OK;
+			break;
+
+		case BIO_CONN_S_BLOCKED_CONNECT:
+			i=BIO_sock_error(b->num);
+			if (i)
+				{
+				BIO_clear_retry_flags(b);
+				SYSerr(SYS_F_CONNECT,i);
+				ERR_add_error_data(4,"host=",
+					c->param_hostname,
+					":",c->param_port);
+				BIOerr(BIO_F_CONN_STATE,BIO_R_NBIO_CONNECT_ERROR);
+				ret=0;
+				goto exit_loop;
+				}
+			else
+				c->state=BIO_CONN_S_OK;
+			break;
+
+		case BIO_CONN_S_OK:
+			ret=1;
+			goto exit_loop;
+		default:
+			/* abort(); */
+			goto exit_loop;
+			}
+
+		if (cb != NULL)
+			{
+			if (!(ret=cb((BIO *)b,c->state,ret)))
+				goto end;
+			}
+		}
+
+	/* Loop does not exit */
+exit_loop:
+	if (cb != NULL)
+		ret=cb((BIO *)b,c->state,ret);
+end:
+	return(ret);
+	}
+
+BIO_CONNECT *BIO_CONNECT_new(void)
+	{
+	BIO_CONNECT *ret;
+
+	if ((ret=(BIO_CONNECT *)OPENSSL_malloc(sizeof(BIO_CONNECT))) == NULL)
+		return(NULL);
+	ret->state=BIO_CONN_S_BEFORE;
+	ret->param_hostname=NULL;
+	ret->param_port=NULL;
+	ret->info_callback=NULL;
+	ret->nbio=0;
+	ret->ip[0]=0;
+	ret->ip[1]=0;
+	ret->ip[2]=0;
+	ret->ip[3]=0;
+	ret->port=0;
+	memset((char *)&ret->them,0,sizeof(ret->them));
+	return(ret);
+	}
+
+void BIO_CONNECT_free(BIO_CONNECT *a)
+	{
+	if(a == NULL)
+	    return;
+
+	if (a->param_hostname != NULL)
+		OPENSSL_free(a->param_hostname);
+	if (a->param_port != NULL)
+		OPENSSL_free(a->param_port);
+	OPENSSL_free(a);
+	}
+
+BIO_METHOD *BIO_s_connect(void)
+	{
+	return(&methods_connectp);
+	}
+
+static int conn_new(BIO *bi)
+	{
+	bi->init=0;
+	bi->num=INVALID_SOCKET;
+	bi->flags=0;
+	if ((bi->ptr=(char *)BIO_CONNECT_new()) == NULL)
+		return(0);
+	else
+		return(1);
+	}
+
+static void conn_close_socket(BIO *bio)
+	{
+	BIO_CONNECT *c;
+
+	c=(BIO_CONNECT *)bio->ptr;
+	if (bio->num != INVALID_SOCKET)
+		{
+		/* Only do a shutdown if things were established */
+		if (c->state == BIO_CONN_S_OK)
+			shutdown(bio->num,2);
+		closesocket(bio->num);
+		bio->num=INVALID_SOCKET;
+		}
+	}
+
+static int conn_free(BIO *a)
+	{
+	BIO_CONNECT *data;
+
+	if (a == NULL) return(0);
+	data=(BIO_CONNECT *)a->ptr;
+	 
+	if (a->shutdown)
+		{
+		conn_close_socket(a);
+		BIO_CONNECT_free(data);
+		a->ptr=NULL;
+		a->flags=0;
+		a->init=0;
+		}
+	return(1);
+	}
+	
+static int conn_read(BIO *b, char *out, int outl)
+	{
+	int ret=0;
+	BIO_CONNECT *data;
+
+	data=(BIO_CONNECT *)b->ptr;
+	if (data->state != BIO_CONN_S_OK)
+		{
+		ret=conn_state(b,data);
+		if (ret <= 0)
+				return(ret);
+		}
+
+	if (out != NULL)
+		{
+		clear_socket_error();
+		ret=readsocket(b->num,out,outl);
+		BIO_clear_retry_flags(b);
+		if (ret <= 0)
+			{
+			if (BIO_sock_should_retry(ret))
+				BIO_set_retry_read(b);
+			}
+		}
+	return(ret);
+	}
+
+static int conn_write(BIO *b, const char *in, int inl)
+	{
+	int ret;
+	BIO_CONNECT *data;
+
+	data=(BIO_CONNECT *)b->ptr;
+	if (data->state != BIO_CONN_S_OK)
+		{
+		ret=conn_state(b,data);
+		if (ret <= 0) return(ret);
+		}
+
+	clear_socket_error();
+	ret=writesocket(b->num,in,inl);
+	BIO_clear_retry_flags(b);
+	if (ret <= 0)
+		{
+		if (BIO_sock_should_retry(ret))
+			BIO_set_retry_write(b);
+		}
+	return(ret);
+	}
+
+static long conn_ctrl(BIO *b, int cmd, long num, void *ptr)
+	{
+	BIO *dbio;
+	int *ip;
+	const char **pptr;
+	long ret=1;
+	BIO_CONNECT *data;
+
+	data=(BIO_CONNECT *)b->ptr;
+
+	switch (cmd)
+		{
+	case BIO_CTRL_RESET:
+		ret=0;
+		data->state=BIO_CONN_S_BEFORE;
+		conn_close_socket(b);
+		b->flags=0;
+		break;
+	case BIO_C_DO_STATE_MACHINE:
+		/* use this one to start the connection */
+		if (data->state != BIO_CONN_S_OK)
+			ret=(long)conn_state(b,data);
+		else
+			ret=1;
+		break;
+	case BIO_C_GET_CONNECT:
+		if (ptr != NULL)
+			{
+			pptr=(const char **)ptr;
+			if (num == 0)
+				{
+				*pptr=data->param_hostname;
+
+				}
+			else if (num == 1)
+				{
+				*pptr=data->param_port;
+				}
+			else if (num == 2)
+				{
+				*pptr= (char *)&(data->ip[0]);
+				}
+			else if (num == 3)
+				{
+				*((int *)ptr)=data->port;
+				}
+			if ((!b->init) || (ptr == NULL))
+				*pptr="not initialized";
+			ret=1;
+			}
+		break;
+	case BIO_C_SET_CONNECT:
+		if (ptr != NULL)
+			{
+			b->init=1;
+			if (num == 0)
+				{
+				if (data->param_hostname != NULL)
+					OPENSSL_free(data->param_hostname);
+				data->param_hostname=BUF_strdup(ptr);
+				}
+			else if (num == 1)
+				{
+				if (data->param_port != NULL)
+					OPENSSL_free(data->param_port);
+				data->param_port=BUF_strdup(ptr);
+				}
+			else if (num == 2)
+				{
+				char buf[16];
+				unsigned char *p = ptr;
+
+				BIO_snprintf(buf,sizeof buf,"%d.%d.%d.%d",
+					     p[0],p[1],p[2],p[3]);
+				if (data->param_hostname != NULL)
+					OPENSSL_free(data->param_hostname);
+				data->param_hostname=BUF_strdup(buf);
+				memcpy(&(data->ip[0]),ptr,4);
+				}
+			else if (num == 3)
+				{
+				char buf[DECIMAL_SIZE(int)+1];
+
+				BIO_snprintf(buf,sizeof buf,"%d",*(int *)ptr);
+				if (data->param_port != NULL)
+					OPENSSL_free(data->param_port);
+				data->param_port=BUF_strdup(buf);
+				data->port= *(int *)ptr;
+				}
+			}
+		break;
+	case BIO_C_SET_NBIO:
+		data->nbio=(int)num;
+		break;
+	case BIO_C_GET_FD:
+		if (b->init)
+			{
+			ip=(int *)ptr;
+			if (ip != NULL)
+				*ip=b->num;
+			ret=b->num;
+			}
+		else
+			ret= -1;
+		break;
+	case BIO_CTRL_GET_CLOSE:
+		ret=b->shutdown;
+		break;
+	case BIO_CTRL_SET_CLOSE:
+		b->shutdown=(int)num;
+		break;
+	case BIO_CTRL_PENDING:
+	case BIO_CTRL_WPENDING:
+		ret=0;
+		break;
+	case BIO_CTRL_FLUSH:
+		break;
+	case BIO_CTRL_DUP:
+		{
+		dbio=(BIO *)ptr;
+		if (data->param_port)
+			BIO_set_conn_port(dbio,data->param_port);
+		if (data->param_hostname)
+			BIO_set_conn_hostname(dbio,data->param_hostname);
+		BIO_set_nbio(dbio,data->nbio);
+		/* FIXME: the cast of the function seems unlikely to be a good idea */
+                (void)BIO_set_info_callback(dbio,(bio_info_cb *)data->info_callback);
+		}
+		break;
+	case BIO_CTRL_SET_CALLBACK:
+		{
+#if 0 /* FIXME: Should this be used?  -- Richard Levitte */
+		BIOerr(BIO_F_CONN_CTRL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+		ret = -1;
+#else
+		ret=0;
+#endif
+		}
+		break;
+	case BIO_CTRL_GET_CALLBACK:
+		{
+		int (**fptr)(const BIO *bio,int state,int xret);
+
+		fptr=(int (**)(const BIO *bio,int state,int xret))ptr;
+		*fptr=data->info_callback;
+		}
+		break;
+	default:
+		ret=0;
+		break;
+		}
+	return(ret);
+	}
+
+static long conn_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
+	{
+	long ret=1;
+	BIO_CONNECT *data;
+
+	data=(BIO_CONNECT *)b->ptr;
+
+	switch (cmd)
+		{
+	case BIO_CTRL_SET_CALLBACK:
+		{
+		data->info_callback=(int (*)(const struct bio_st *, int, int))fp;
+		}
+		break;
+	default:
+		ret=0;
+		break;
+		}
+	return(ret);
+	}
+
+static int conn_puts(BIO *bp, const char *str)
+	{
+	int n,ret;
+
+	n=strlen(str);
+	ret=conn_write(bp,str,n);
+	return(ret);
+	}
+
+BIO *BIO_new_connect(char *str)
+	{
+	BIO *ret;
+
+	ret=BIO_new(BIO_s_connect());
+	if (ret == NULL) return(NULL);
+	if (BIO_set_conn_hostname(ret,str))
+		return(ret);
+	else
+		{
+		BIO_free(ret);
+		return(NULL);
+		}
+	}
+
+#endif
+