Initial import

1 files changed, 179 insertions, 0 deletions

diff --git a/openssl/crypto/des/enc_writ.c b/openssl/crypto/des/enc_writ.c
new file mode 100644
index 00000000..2353ac1e
--- /dev/null
+++ b/openssl/crypto/des/enc_writ.c
@@ -0,0 +1,179 @@
+/* crypto/des/enc_writ.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 <errno.h>
+#include <time.h>
+#include <stdio.h>
+#include "cryptlib.h"
+#include "des_locl.h"
+#include <openssl/rand.h>
+
+/*
+ * WARNINGS:
+ *
+ *  -  The data format used by DES_enc_write() and DES_enc_read()
+ *     has a cryptographic weakness: When asked to write more
+ *     than MAXWRITE bytes, DES_enc_write will split the data
+ *     into several chunks that are all encrypted
+ *     using the same IV.  So don't use these functions unless you
+ *     are sure you know what you do (in which case you might
+ *     not want to use them anyway).
+ *
+ *  -  This code cannot handle non-blocking sockets.
+ */
+
+int DES_enc_write(int fd, const void *_buf, int len,
+		  DES_key_schedule *sched, DES_cblock *iv)
+	{
+#if defined(OPENSSL_NO_POSIX_IO)
+	return (-1);
+#else
+#ifdef _LIBC
+	extern unsigned long time();
+	extern int write();
+#endif
+	const unsigned char *buf=_buf;
+	long rnum;
+	int i,j,k,outnum;
+	static unsigned char *outbuf=NULL;
+	unsigned char shortbuf[8];
+	unsigned char *p;
+	const unsigned char *cp;
+	static int start=1;
+
+	if (outbuf == NULL)
+		{
+		outbuf=OPENSSL_malloc(BSIZE+HDRSIZE);
+		if (outbuf == NULL) return(-1);
+		}
+	/* If we are sending less than 8 bytes, the same char will look
+	 * the same if we don't pad it out with random bytes */
+	if (start)
+		{
+		start=0;
+		}
+
+	/* lets recurse if we want to send the data in small chunks */
+	if (len > MAXWRITE)
+		{
+		j=0;
+		for (i=0; i<len; i+=k)
+			{
+			k=DES_enc_write(fd,&(buf[i]),
+				((len-i) > MAXWRITE)?MAXWRITE:(len-i),sched,iv);
+			if (k < 0)
+				return(k);
+			else
+				j+=k;
+			}
+		return(j);
+		}
+
+	/* write length first */
+	p=outbuf;
+	l2n(len,p);
+
+	/* pad short strings */
+	if (len < 8)
+		{
+		cp=shortbuf;
+		memcpy(shortbuf,buf,len);
+		RAND_pseudo_bytes(shortbuf+len, 8-len);
+		rnum=8;
+		}
+	else
+		{
+		cp=buf;
+		rnum=((len+7)/8*8); /* round up to nearest eight */
+		}
+
+	if (DES_rw_mode & DES_PCBC_MODE)
+		DES_pcbc_encrypt(cp,&(outbuf[HDRSIZE]),(len<8)?8:len,sched,iv,
+				 DES_ENCRYPT); 
+	else
+		DES_cbc_encrypt(cp,&(outbuf[HDRSIZE]),(len<8)?8:len,sched,iv,
+				DES_ENCRYPT); 
+
+	/* output */
+	outnum=rnum+HDRSIZE;
+
+	for (j=0; j<outnum; j+=i)
+		{
+		/* eay 26/08/92 I was not doing writing from where we
+		 * got up to. */
+#ifndef _WIN32
+		i=write(fd,(void *)&(outbuf[j]),outnum-j);
+#else
+		i=_write(fd,(void *)&(outbuf[j]),outnum-j);
+#endif
+		if (i == -1)
+			{
+#ifdef EINTR
+			if (errno == EINTR)
+				i=0;
+			else
+#endif
+			        /* This is really a bad error - very bad
+				 * It will stuff-up both ends. */
+				return(-1);
+			}
+		}
+
+	return(len);
+#endif /* OPENSSL_NO_POSIX_IO */
+	}