Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/rand/randfile.c

Index: openssl/crypto/rand/randfile.c
diff --git a/openssl/crypto/rand/randfile.c b/openssl/crypto/rand/randfile.c
deleted file mode 100644
index 7f1428072d27d612b2345353a7c408a68b9d1df7..0000000000000000000000000000000000000000
--- a/openssl/crypto/rand/randfile.c
+++ /dev/null
@@ -1,328 +0,0 @@
-/* crypto/rand/randfile.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.]
- */
-
-/* We need to define this to get macros like S_IFBLK and S_IFCHR */
-#if !defined(OPENSSL_SYS_VXWORKS)
-#define _XOPEN_SOURCE 500
-#endif
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "e_os.h"
-#include <openssl/crypto.h>
-#include <openssl/rand.h>
-#include <openssl/buffer.h>
-
-#ifdef OPENSSL_SYS_VMS
-#include <unixio.h>
-#endif
-#ifndef NO_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifndef OPENSSL_NO_POSIX_IO
-# include <sys/stat.h>
-#endif
-
-#ifdef _WIN32
-#define stat	_stat
-#define chmod	_chmod
-#define open	_open
-#define fdopen	_fdopen
-#endif
-
-#undef BUFSIZE
-#define BUFSIZE	1024
-#define RAND_DATA 1024
-
-#ifdef OPENSSL_SYS_VMS
-/* This declaration is a nasty hack to get around vms' extension to fopen
- * for passing in sharing options being disabled by our /STANDARD=ANSI89 */
-static FILE *(*const vms_fopen)(const char *, const char *, ...) =
-    (FILE *(*)(const char *, const char *, ...))fopen;
-#define VMS_OPEN_ATTRS "shr=get,put,upd,del","ctx=bin,stm","rfm=stm","rat=none","mrs=0"
-#endif
-
-/* #define RFILE ".rnd" - defined in ../../e_os.h */
-
-/* Note that these functions are intended for seed files only.
- * Entropy devices and EGD sockets are handled in rand_unix.c */
-
-int RAND_load_file(const char *file, long bytes)
-	{
-	/* If bytes >= 0, read up to 'bytes' bytes.
-	 * if bytes == -1, read complete file. */
-
-	MS_STATIC unsigned char buf[BUFSIZE];
-#ifndef OPENSSL_NO_POSIX_IO
-	struct stat sb;
-#endif
-	int i,ret=0,n;
-	FILE *in;
-
-	if (file == NULL) return(0);
-
-#ifndef OPENSSL_NO_POSIX_IO
-#ifdef PURIFY
-	/* struct stat can have padding and unused fields that may not be
-	 * initialized in the call to stat(). We need to clear the entire
-	 * structure before calling RAND_add() to avoid complaints from
-	 * applications such as Valgrind.
-	 */
-	memset(&sb, 0, sizeof(sb));
-#endif
-	if (stat(file,&sb) < 0) return(0);
-	RAND_add(&sb,sizeof(sb),0.0);
-#endif
-	if (bytes == 0) return(ret);
-
-#ifdef OPENSSL_SYS_VMS
-	in=vms_fopen(file,"rb",VMS_OPEN_ATTRS);
-#else
-	in=fopen(file,"rb");
-#endif
-	if (in == NULL) goto err;
-#if defined(S_IFBLK) && defined(S_IFCHR) && !defined(OPENSSL_NO_POSIX_IO)
-	if (sb.st_mode & (S_IFBLK | S_IFCHR)) {
-	  /* this file is a device. we don't want read an infinite number
-	   * of bytes from a random device, nor do we want to use buffered
-	   * I/O because we will waste system entropy. 
-	   */
-	  bytes = (bytes == -1) ? 2048 : bytes; /* ok, is 2048 enough? */
-#ifndef OPENSSL_NO_SETVBUF_IONBF
-	  setvbuf(in, NULL, _IONBF, 0); /* don't do buffered reads */
-#endif /* ndef OPENSSL_NO_SETVBUF_IONBF */
-	}
-#endif
-	for (;;)
-		{
-		if (bytes > 0)
-			n = (bytes < BUFSIZE)?(int)bytes:BUFSIZE;
-		else
-			n = BUFSIZE;
-		i=fread(buf,1,n,in);
-		if (i <= 0) break;
-#ifdef PURIFY
-		RAND_add(buf,i,(double)i);
-#else
-		/* even if n != i, use the full array */
-		RAND_add(buf,n,(double)i);
-#endif
-		ret+=i;
-		if (bytes > 0)
-			{
-			bytes-=n;
-			if (bytes <= 0) break;
-			}
-		}
-	fclose(in);
-	OPENSSL_cleanse(buf,BUFSIZE);
-err:
-	return(ret);
-	}
-
-int RAND_write_file(const char *file)
-	{
-	unsigned char buf[BUFSIZE];
-	int i,ret=0,rand_err=0;
-	FILE *out = NULL;
-	int n;
-#ifndef OPENSSL_NO_POSIX_IO
-	struct stat sb;
-	
-	i=stat(file,&sb);
-	if (i != -1) { 
-#if defined(S_ISBLK) && defined(S_ISCHR)
-	  if (S_ISBLK(sb.st_mode) || S_ISCHR(sb.st_mode)) {
-	    /* this file is a device. we don't write back to it. 
-	     * we "succeed" on the assumption this is some sort 
-	     * of random device. Otherwise attempting to write to 
-	     * and chmod the device causes problems.
-	     */
-	    return(1); 
-	  }
-#endif
-	}
-#endif
-
-#if defined(O_CREAT) && !defined(OPENSSL_NO_POSIX_IO) && !defined(OPENSSL_SYS_VMS)
-	{
-#ifndef O_BINARY
-#define O_BINARY 0
-#endif
-	/* chmod(..., 0600) is too late to protect the file,
-	 * permissions should be restrictive from the start */
-	int fd = open(file, O_WRONLY|O_CREAT|O_BINARY, 0600);
-	if (fd != -1)
-		out = fdopen(fd, "wb");
-	}
-#endif
-
-#ifdef OPENSSL_SYS_VMS
-	/* VMS NOTE: Prior versions of this routine created a _new_
-	 * version of the rand file for each call into this routine, then
-	 * deleted all existing versions named ;-1, and finally renamed
-	 * the current version as ';1'. Under concurrent usage, this
-	 * resulted in an RMS race condition in rename() which could
-	 * orphan files (see vms message help for RMS$_REENT). With the
-	 * fopen() calls below, openssl/VMS now shares the top-level
-	 * version of the rand file. Note that there may still be
-	 * conditions where the top-level rand file is locked. If so, this
-	 * code will then create a new version of the rand file. Without
-	 * the delete and rename code, this can result in ascending file
-	 * versions that stop at version 32767, and this routine will then
-	 * return an error. The remedy for this is to recode the calling
-	 * application to avoid concurrent use of the rand file, or
-	 * synchronize usage at the application level. Also consider
-	 * whether or not you NEED a persistent rand file in a concurrent
-	 * use situation. 
-	 */
-
-	out = vms_fopen(file,"rb+",VMS_OPEN_ATTRS);
-	if (out == NULL)
-		out = vms_fopen(file,"wb",VMS_OPEN_ATTRS);
-#else
-	if (out == NULL)
-		out = fopen(file,"wb");
-#endif
-	if (out == NULL) goto err;
-
-#ifndef NO_CHMOD
-	chmod(file,0600);
-#endif
-	n=RAND_DATA;
-	for (;;)
-		{
-		i=(n > BUFSIZE)?BUFSIZE:n;
-		n-=BUFSIZE;
-		if (RAND_bytes(buf,i) <= 0)
-			rand_err=1;
-		i=fwrite(buf,1,i,out);
-		if (i <= 0)
-			{
-			ret=0;
-			break;
-			}
-		ret+=i;
-		if (n <= 0) break;
-                }
-
-	fclose(out);
-	OPENSSL_cleanse(buf,BUFSIZE);
-err:
-	return (rand_err ? -1 : ret);
-	}
-
-const char *RAND_file_name(char *buf, size_t size)
-	{
-	char *s=NULL;
-#ifdef __OpenBSD__
-	struct stat sb;
-#endif
-
-	if (OPENSSL_issetugid() == 0)
-		s=getenv("RANDFILE");
-	if (s != NULL && *s && strlen(s) + 1 < size)
-		{
-		if (BUF_strlcpy(buf,s,size) >= size)
-			return NULL;
-		}
-	else
-		{
-		if (OPENSSL_issetugid() == 0)
-			s=getenv("HOME");
-#ifdef DEFAULT_HOME
-		if (s == NULL)
-			{
-			s = DEFAULT_HOME;
-			}
-#endif
-		if (s && *s && strlen(s)+strlen(RFILE)+2 < size)
-			{
-			BUF_strlcpy(buf,s,size);
-#ifndef OPENSSL_SYS_VMS
-			BUF_strlcat(buf,"/",size);
-#endif
-			BUF_strlcat(buf,RFILE,size);
-			}
-		else
-		  	buf[0] = '\0'; /* no file name */
-		}
-
-#ifdef __OpenBSD__
-	/* given that all random loads just fail if the file can't be 
-	 * seen on a stat, we stat the file we're returning, if it
-	 * fails, use /dev/arandom instead. this allows the user to 
-	 * use their own source for good random data, but defaults
-	 * to something hopefully decent if that isn't available. 
-	 */
-
-	if (!buf[0])
-		if (BUF_strlcpy(buf,"/dev/arandom",size) >= size) {
-			return(NULL);
-		}	
-	if (stat(buf,&sb) == -1)
-		if (BUF_strlcpy(buf,"/dev/arandom",size) >= size) {
-			return(NULL);
-		}	
-
-#endif
-	return(buf);
-	}