Import of old SSLeay release: SSLeay 0.8.1b

1 files changed, 558 insertions, 0 deletions

diff --git a/crypto/bio/bss_conn.c b/crypto/bio/bss_conn.c
new file mode 100644
index 0000000000..4e31e3c1f8
--- /dev/null
+++ b/crypto/bio/bss_conn.c
@@ -0,0 +1,558 @@
+/* crypto/bio/bss_conn.c */
+/* Copyright (C) 1995-1997 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.]
+ */
+
+#ifndef NO_SOCK
+
+#include <stdio.h>
+#include <errno.h>
+#define USE_SOCKETS
+#include "cryptlib.h"
+#include "bio.h"
+
+/*	BIOerr(BIO_F_WSASTARTUP,BIO_R_WSASTARTUP ); */
+
+#ifdef WIN16
+#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
+#else
+#define SOCKET_PROTOCOL IPPROTO_TCP
+#endif
+
+typedef struct bio_connect_st
+	{
+	int state;
+
+	char *param_hostname;
+	char *param_port;
+	int nbio;
+
+	unsigned char ip[4];
+	short port;
+
+	struct sockaddr_in them;
+
+	/* int socket; this will be kept in bio->num so that it is
+	 * compatable with the bss_sock bio */ 
+	int error;
+	} BIO_CONNECT;
+
+#ifndef NOPROTO
+static int conn_write(BIO *h,char *buf,int num);
+static int conn_read(BIO *h,char *buf,int size);
+static int conn_puts(BIO *h,char *str);
+static long conn_ctrl(BIO *h,int cmd,long arg1,char *arg2);
+static int conn_new(BIO *h);
+static int conn_free(BIO *data);
+#else
+static int conn_write();
+static int conn_read();
+static int conn_puts();
+static long conn_ctrl();
+static int conn_new();
+static int conn_free();
+#endif
+
+#ifndef NOPROTO
+
+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);
+
+#else
+
+static int conn_state();
+static void conn_close_socket();
+BIO_CONNECT *BIO_CONNECT_new();
+void BIO_CONNECT_free();
+
+#endif
+
+#define CONN_S_BEFORE		1
+#define CONN_S_GET_IP		2
+#define CONN_S_GET_PORT		3
+#define CONN_S_CREATE_SOCKET	4
+#define CONN_S_CONNECT		5
+#define CONN_S_OK		6
+#define CONN_S_BLOCKED_CONNECT	7
+#define CONN_S_NBIO		8
+
+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,
+	};
+
+static int conn_state(b,c)
+BIO *b;
+BIO_CONNECT *c;
+	{
+	int ret= -1,i;
+	unsigned long l;
+	char *p,*q;
+
+	switch (c->state)
+		{
+	case CONN_S_BEFORE:
+		p=c->param_hostname;
+		if (p == NULL)
+			{
+			BIOerr(BIO_F_CONN_STATE,BIO_R_NO_HOSTHNAME_SPECIFIED);
+			break;
+			}
+		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)
+					Free(c->param_port);
+				c->param_port=BUF_strdup(p);
+				}
+			}
+
+		if (p == NULL)
+			{
+			BIOerr(BIO_F_CONN_STATE,BIO_R_NO_PORT_SPECIFIED);
+			break;
+			}
+		c->state=CONN_S_GET_IP;
+
+	case CONN_S_GET_IP:
+		if (BIO_get_host_ip(c->param_hostname,&(c->ip[0])) <= 0)
+			break;
+		c->state=CONN_S_GET_PORT;
+
+	case CONN_S_GET_PORT:
+		if (BIO_get_port(c->param_port,&c->port) <= 0)
+			break;
+		c->state=CONN_S_CREATE_SOCKET;
+
+	case 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=CONN_S_CREATE_SOCKET;
+
+		ret=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
+		if (ret == INVALID_SOCKET)
+			{
+			SYSerr(SYS_F_SOCKET,errno);
+			BIOerr(BIO_F_CONN_STATE,BIO_R_UNABLE_TO_CREATE_SOCKET);
+			break;
+			}
+		b->num=ret;
+		c->state=CONN_S_NBIO;
+
+	case CONN_S_NBIO:
+#ifdef FIONBIO
+		if (c->nbio)
+			{
+			l=1;
+			ret=BIO_socket_ioctl(b->num,FIONBIO,&l);
+			if (ret < 0)
+				{
+				BIOerr(BIO_F_CONN_STATE,BIO_R_ERROR_SETTING_NBIO);
+				break;
+				}
+			}
+#endif
+		c->state=CONN_S_CONNECT;
+
+	case 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=CONN_S_BLOCKED_CONNECT;
+				b->retry_reason=BIO_RR_CONNECT;
+				}
+			else
+				{
+				SYSerr(SYS_F_CONNECT,errno);
+				BIOerr(BIO_F_CONN_STATE,BIO_R_CONNECT_ERROR);
+				}
+			}
+		else
+			{
+			ret=1;
+			c->state=CONN_S_OK;
+			}
+		break;
+
+	case CONN_S_BLOCKED_CONNECT:
+		BIO_clear_retry_flags(b);
+		i=BIO_sock_error(b->num);
+		if (i)
+			{
+			SYSerr(SYS_F_CONNECT,i);
+			BIOerr(BIO_F_CONN_STATE,BIO_R_NBIO_CONNECT_ERROR);
+			}
+		else
+			{
+			c->state=CONN_S_OK;
+			ret=1;
+			}
+		break;
+
+	case CONN_S_OK:
+		ret=1;
+		break;
+	default:
+		abort();
+		}
+	return(ret);
+	}
+
+BIO_CONNECT *BIO_CONNECT_new()
+	{
+	BIO_CONNECT *ret;
+
+	if ((ret=(BIO_CONNECT *)Malloc(sizeof(BIO_CONNECT))) == NULL)
+		return(NULL);
+	ret->state=CONN_S_BEFORE;
+	ret->param_hostname=NULL;
+	ret->param_port=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));
+	ret->error=0;
+	return(ret);
+	}
+
+void BIO_CONNECT_free(a)
+BIO_CONNECT *a;
+	{
+	if (a->param_hostname != NULL)
+		Free(a->param_hostname);
+	if (a->param_port != NULL)
+		Free(a->param_port);
+	Free(a);
+	}
+
+BIO_METHOD *BIO_s_connect()
+	{
+	return(&methods_connectp);
+	}
+
+static int conn_new(bi)
+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;
+	{
+	BIO_CONNECT *c;
+
+	c=(BIO_CONNECT *)bio->ptr;
+	if (bio->num != INVALID_SOCKET)
+		{
+		/* Only do a shutdown if things were established */
+		if (c->state == CONN_S_OK)
+			shutdown(bio->num,2);
+# ifdef WINDOWS
+		closesocket(bio->num);
+# else
+		close(bio->num);
+# endif
+		bio->num=INVALID_SOCKET;
+		}
+	}
+
+static int conn_free(a)
+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(b,out,outl)
+BIO *b;
+char *out;
+int outl;
+	{
+	int ret=0;
+	BIO_CONNECT *data;
+
+	data=(BIO_CONNECT *)b->ptr;
+	if (data->state != CONN_S_OK)
+		{
+		ret=conn_state(b,data);
+		if (ret <= 0) return(ret);
+		}
+
+	if (out != NULL)
+		{
+		errno=0;
+#if defined(WINDOWS)
+		ret=recv(b->num,out,outl,0);
+#else
+		ret=read(b->num,out,outl);
+#endif
+		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(b,in,inl)
+BIO *b;
+char *in;
+int inl;
+	{
+	int ret;
+	BIO_CONNECT *data;
+
+	data=(BIO_CONNECT *)b->ptr;
+	if (data->state != CONN_S_OK)
+		{
+		ret=conn_state(b,data);
+		if (ret <= 0) return(ret);
+		}
+
+	errno=0;
+#if defined(WINDOWS)
+	ret=send(b->num,in,inl,0);
+#else
+	ret=write(b->num,in,inl);
+#endif
+	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(b,cmd,num,ptr)
+BIO *b;
+int cmd;
+long num;
+char *ptr;
+	{
+	BIO *dbio;
+	int *ip;
+	long ret=1;
+	BIO_CONNECT *data;
+
+	data=(BIO_CONNECT *)b->ptr;
+
+	switch (cmd)
+		{
+	case BIO_CTRL_RESET:
+		ret=0;
+		data->state=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 != CONN_S_OK)
+			ret=(long)conn_state(b,data);
+		else
+			ret=1;
+		break;
+	case BIO_C_SET_CONNECT:
+		if (ptr != NULL)
+			{
+			b->init=1;
+			if (num == 0)
+				{
+				if (data->param_hostname != NULL)
+					Free(data->param_hostname);
+				data->param_hostname=BUF_strdup(ptr);
+				}
+			else if (num == 1)
+				{
+				if (data->param_port != NULL)
+					Free(data->param_port);
+				data->param_port=BUF_strdup(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_port(dbio,data->param_port);
+		if (data->param_hostname)
+			BIO_set_hostname(dbio,data->param_hostname);
+		BIO_set_nbio(dbio,data->nbio);
+		break;
+
+	default:
+		ret=0;
+		break;
+		}
+	return(ret);
+	}
+
+static int conn_puts(bp,str)
+BIO *bp;
+char *str;
+	{
+	int n,ret;
+
+	n=strlen(str);
+	ret=conn_write(bp,str,n);
+	return(ret);
+	}
+
+BIO *BIO_new_connect(str)
+char *str;
+	{
+	BIO *ret;
+
+	ret=BIO_new(BIO_s_connect());
+	if (ret == NULL) return(NULL);
+	if (BIO_set_hostname(ret,str))
+		return(ret);
+	else
+		{
+		BIO_free(ret);
+		return(NULL);
+		}
+	}
+
+#endif
+