summaryrefslogtreecommitdiff
path: root/app/openssl/crypto/rand/randfile.c
diff options
context:
space:
mode:
authorParménides GV <parmegv@sdf.org>2015-06-04 19:20:15 +0200
committerParménides GV <parmegv@sdf.org>2015-06-04 19:20:15 +0200
commit27594eeae6f40a402bc3110f06d57975168e74e3 (patch)
treecdabf6571e6f4ff07205fd6921d8095539a1fcdc /app/openssl/crypto/rand/randfile.c
parent8dc4f58d96892fbfd83094fb85b1d17656035290 (diff)
ics-openvpn as a submodule! beautiful
ics-openvpn is now officially on GitHub, and they track openssl and openvpn as submodules, so it's easier to update everything. Just a git submodule update --recursive. I've also set up soft links to native modules from ics-openvpn in app, so that we don't copy files in Gradle (which was causing problems with the submodules .git* files, not being copied). That makes the repo cleaner.
Diffstat (limited to 'app/openssl/crypto/rand/randfile.c')
-rw-r--r--app/openssl/crypto/rand/randfile.c329
1 files changed, 0 insertions, 329 deletions
diff --git a/app/openssl/crypto/rand/randfile.c b/app/openssl/crypto/rand/randfile.c
deleted file mode 100644
index 14ba69d4..00000000
--- a/app/openssl/crypto/rand/randfile.c
+++ /dev/null
@@ -1,329 +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>
-# include <fcntl.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);
- }