Import of old SSLeay release: SSLeay 0.8.1b

1 files changed, 449 insertions, 0 deletions

diff --git a/crypto/bio/bss_sock.c b/crypto/bio/bss_sock.c
new file mode 100644
index 0000000000..ac96027051
--- /dev/null
+++ b/crypto/bio/bss_sock.c
@@ -0,0 +1,449 @@
+/* crypto/bio/bss_sock.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.]
+ */
+
+#if !defined(NO_SOCK) || defined(BIO_FD)
+
+#include <stdio.h>
+#include <errno.h>
+#define USE_SOCKETS
+#include "cryptlib.h"
+#include "bio.h"
+
+#ifndef BIO_FD
+#ifndef NOPROTO
+static int sock_write(BIO *h,char *buf,int num);
+static int sock_read(BIO *h,char *buf,int size);
+static int sock_puts(BIO *h,char *str);
+static long sock_ctrl(BIO *h,int cmd,long arg1,char *arg2);
+static int sock_new(BIO *h);
+static int sock_free(BIO *data);
+int BIO_sock_should_retry(int s);
+#else
+static int sock_write();
+static int sock_read();
+static int sock_puts();
+static long sock_ctrl();
+static int sock_new();
+static int sock_free();
+int BIO_sock_should_retry();
+#endif
+
+#else
+
+#ifndef NOPROTO
+static int fd_write(BIO *h,char *buf,int num);
+static int fd_read(BIO *h,char *buf,int size);
+static int fd_puts(BIO *h,char *str);
+static long fd_ctrl(BIO *h,int cmd,long arg1,char *arg2);
+static int fd_new(BIO *h);
+static int fd_free(BIO *data);
+int BIO_fd_should_retry(int s);
+#else
+static int fd_write();
+static int fd_read();
+static int fd_puts();
+static long fd_ctrl();
+static int fd_new();
+static int fd_free();
+int BIO_fd_should_retry();
+#endif
+#endif
+
+#ifndef BIO_FD
+static BIO_METHOD methods_sockp=
+	{
+	BIO_TYPE_SOCKET,"socket",
+	sock_write,
+	sock_read,
+	sock_puts,
+	NULL, /* sock_gets, */
+	sock_ctrl,
+	sock_new,
+	sock_free,
+	};
+
+BIO_METHOD *BIO_s_socket()
+	{
+	return(&methods_sockp);
+	}
+#else
+static BIO_METHOD methods_fdp=
+	{
+	BIO_TYPE_FD,"file descriptor",
+	fd_write,
+	fd_read,
+	fd_puts,
+	NULL, /* fd_gets, */
+	fd_ctrl,
+	fd_new,
+	fd_free,
+	};
+
+BIO_METHOD *BIO_s_fd()
+	{
+	return(&methods_fdp);
+	}
+#endif
+
+#ifndef BIO_FD
+BIO *BIO_new_socket(fd,close_flag)
+#else
+BIO *BIO_new_fd(fd,close_flag)
+#endif
+int fd;
+int close_flag;
+	{
+	BIO *ret;
+
+#ifndef BIO_FD
+	ret=BIO_new(BIO_s_socket());
+#else
+	ret=BIO_new(BIO_s_fd());
+#endif
+	if (ret == NULL) return(NULL);
+	BIO_set_fd(ret,fd,close_flag);
+	return(ret);
+	}
+
+#ifndef BIO_FD
+static int sock_new(bi)
+#else
+static int fd_new(bi)
+#endif
+BIO *bi;
+	{
+	bi->init=0;
+	bi->num=0;
+	bi->ptr=NULL;
+	bi->flags=0;
+	return(1);
+	}
+
+#ifndef BIO_FD
+static int sock_free(a)
+#else
+static int fd_free(a)
+#endif
+BIO *a;
+	{
+	if (a == NULL) return(0);
+	if (a->shutdown)
+		{
+		if (a->init)
+			{
+#ifndef BIO_FD
+			shutdown(a->num,2);
+# ifdef WINDOWS
+			closesocket(a->num);
+# else
+			close(a->num);
+# endif
+#else			/* BIO_FD */
+			close(a->num);
+#endif
+
+			}
+		a->init=0;
+		a->flags=0;
+		}
+	return(1);
+	}
+	
+#ifndef BIO_FD
+static int sock_read(b,out,outl)
+#else
+static int fd_read(b,out,outl)
+#endif
+BIO *b;
+char *out;
+int outl;
+	{
+	int ret=0;
+
+	if (out != NULL)
+		{
+		errno=0;
+#if defined(WINDOWS) && !defined(BIO_FD)
+		ret=recv(b->num,out,outl,0);
+#else
+		ret=read(b->num,out,outl);
+#endif
+		BIO_clear_retry_flags(b);
+		if (ret <= 0)
+			{
+#ifndef BIO_FD
+			if (BIO_sock_should_retry(ret))
+#else
+			if (BIO_fd_should_retry(ret))
+#endif
+				BIO_set_retry_read(b);
+			}
+		}
+	return(ret);
+	}
+
+#ifndef BIO_FD
+static int sock_write(b,in,inl)
+#else
+static int fd_write(b,in,inl)
+#endif
+BIO *b;
+char *in;
+int inl;
+	{
+	int ret;
+	
+	errno=0;
+#if defined(WINDOWS) && !defined(BIO_FD)
+	ret=send(b->num,in,inl,0);
+#else
+	ret=write(b->num,in,inl);
+#endif
+	BIO_clear_retry_flags(b);
+	if (ret <= 0)
+		{
+#ifndef BIO_FD
+		if (BIO_sock_should_retry(ret))
+#else
+		if (BIO_fd_should_retry(ret))
+#endif
+			BIO_set_retry_write(b);
+		}
+	return(ret);
+	}
+
+#ifndef BIO_FD
+static long sock_ctrl(b,cmd,num,ptr)
+#else
+static long fd_ctrl(b,cmd,num,ptr)
+#endif
+BIO *b;
+int cmd;
+long num;
+char *ptr;
+	{
+	long ret=1;
+	int *ip;
+
+	switch (cmd)
+		{
+	case BIO_CTRL_RESET:
+#ifdef BIO_FD
+		ret=(long)lseek(b->num,0,0);
+#else
+		ret=0;
+#endif
+		break;
+	case BIO_CTRL_INFO:
+		ret=0;
+		break;
+	case BIO_C_SET_FD:
+#ifndef BIO_FD
+		sock_free(b);
+#else
+		fd_free(b);
+#endif
+		b->num= *((int *)ptr);
+		b->shutdown=(int)num;
+		b->init=1;
+		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_DUP:
+	case BIO_CTRL_FLUSH:
+		ret=1;
+		break;
+		break;
+	default:
+		ret=0;
+		break;
+		}
+	return(ret);
+	}
+
+#ifdef undef
+static int sock_gets(bp,buf,size)
+BIO *bp;
+char *buf;
+int size;
+	{
+	return(-1);
+	}
+#endif
+
+#ifndef BIO_FD
+static int sock_puts(bp,str)
+#else
+static int fd_puts(bp,str)
+#endif
+BIO *bp;
+char *str;
+	{
+	int n,ret;
+
+	n=strlen(str);
+#ifndef BIO_FD
+	ret=sock_write(bp,str,n);
+#else
+	ret=fd_write(bp,str,n);
+#endif
+	return(ret);
+	}
+
+#ifndef BIO_FD
+int BIO_sock_should_retry(i)
+#else
+int BIO_fd_should_retry(i)
+#endif
+int i;
+	{
+	if ((i == 0) || (i == -1))
+		{
+#if !defined(BIO_FD) && defined(WINDOWS)
+		errno=WSAGetLastError();
+#endif
+
+#if defined(WINDOWS) /* more microsoft stupidity */
+		if ((i == -1) && (errno == 0))
+			return(1);
+#endif
+#ifndef BIO_FD
+		return(BIO_sock_non_fatal_error(errno));
+#else
+		return(BIO_fd_non_fatal_error(errno));
+#endif
+		}
+	return(0);
+	}
+
+#ifndef BIO_FD
+int BIO_sock_non_fatal_error(err)
+#else
+int BIO_fd_non_fatal_error(err)
+#endif
+int err;
+	{
+	switch (err)
+		{
+#if !defined(BIO_FD) && defined(WINDOWS)
+# if defined(WSAEWOULDBLOCK)
+	case WSAEWOULDBLOCK:
+# endif
+
+# if defined(WSAENOTCONN)
+	case WSAENOTCONN:
+# endif
+#endif
+
+#ifdef EWOULDBLOCK
+# ifdef WSAEWOULDBLOCK
+#  if WSAEWOULDBLOCK != EWOULDBLOCK
+	case EWOULDBLOCK:
+#  endif
+# else
+	case EWOULDBLOCK:
+# endif
+#endif
+
+#ifdef EINTR
+	case EINTR:
+#endif
+
+#ifdef EAGAIN
+#if EWOULDBLOCK != EAGAIN
+	case EAGAIN:
+# endif
+#endif
+
+#ifdef EPROTO
+	case EPROTO:
+#endif
+
+#ifdef EINPROGRESS
+	case EINPROGRESS:
+#endif
+
+#ifdef EALREADY
+	case EALREADY:
+#endif
+		return(1);
+		break;
+	default:
+		break;
+		}
+	return(0);
+	}
+#endif