-/* crypto/rand/rand_egd.c */
-/* Written by Ulf Moeller and Lutz Jaenicke for the OpenSSL project. */
-/* ====================================================================
- * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
- *
- * 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 above 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 acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+/*
+ * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
-#include <openssl/e_os2.h>
-#include <openssl/rand.h>
-#include <openssl/buffer.h>
+#include <openssl/opensslconf.h>
+#ifdef OPENSSL_NO_EGD
+NON_EMPTY_TRANSLATION_UNIT
+#else
-/*
+# include <openssl/crypto.h>
+# include <openssl/e_os2.h>
+# include <openssl/rand.h>
+
+/*-
* Query the EGD <URL: http://www.lothar.com/tech/crypto/>.
*
* This module supplies three routines:
* of entropy bytes are requested. The connection is left open until the
* query is competed.
* RAND_query_egd_bytes() returns with
- * -1 if an error occured during connection or communication.
+ * -1 if an error occurred during connection or communication.
* num the number of bytes read from the EGD socket. This number is either
* the number of bytes requested or smaller, if the EGD pool is
* drained and the daemon signals that the pool is empty.
* RAND_egd_bytes() is a wrapper for RAND_query_egd_bytes() with buf=NULL.
* Unlike RAND_query_egd_bytes(), RAND_status() is used to test the
* seed status so that the return value can reflect the seed state:
- * -1 if an error occured during connection or communication _or_
+ * -1 if an error occurred during connection or communication _or_
* if the PRNG has still not received the required seeding.
* num the number of bytes read from the EGD socket. This number is either
* the number of bytes requested or smaller, if the EGD pool is
* drained and the daemon signals that the pool is empty.
*
- * RAND_egd(path) will query 255 bytes and use the bytes retreived to seed
+ * RAND_egd(path) will query 255 bytes and use the bytes retrieved to seed
* the PRNG.
* RAND_egd() is a wrapper for RAND_egd_bytes() with numbytes=255.
*/
-#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VMS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_VOS)
+# if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VMS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_VOS) || defined(OPENSSL_SYS_UEFI)
int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes)
- {
- return(-1);
- }
+{
+ return (-1);
+}
+
int RAND_egd(const char *path)
- {
- return(-1);
- }
+{
+ return (-1);
+}
-int RAND_egd_bytes(const char *path,int bytes)
- {
- return(-1);
- }
-#else
-#include <openssl/opensslconf.h>
-#include OPENSSL_UNISTD
-#include <sys/types.h>
-#include <sys/socket.h>
-#ifndef NO_SYS_UN_H
-# ifdef OPENSSL_SYS_VXWORKS
-# include <streams/un.h>
+int RAND_egd_bytes(const char *path, int bytes)
+{
+ return (-1);
+}
# else
-# include <sys/un.h>
-# endif
-#else
-struct sockaddr_un {
- short sun_family; /* AF_UNIX */
- char sun_path[108]; /* path name (gag) */
+# include <openssl/opensslconf.h>
+# include OPENSSL_UNISTD
+# include <stddef.h>
+# include <sys/types.h>
+# include <sys/socket.h>
+# ifndef NO_SYS_UN_H
+# ifdef OPENSSL_SYS_VXWORKS
+# include <streams/un.h>
+# else
+# include <sys/un.h>
+# endif
+# else
+struct sockaddr_un {
+ short sun_family; /* AF_UNIX */
+ char sun_path[108]; /* path name (gag) */
};
-#endif /* NO_SYS_UN_H */
-#include <string.h>
-#include <errno.h>
-
-#ifndef offsetof
-# define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
-#endif
+# endif /* NO_SYS_UN_H */
+# include <string.h>
+# include <errno.h>
int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes)
- {
- int ret = 0;
- struct sockaddr_un addr;
- int len, num, numbytes;
- int fd = -1;
- int success;
- unsigned char egdbuf[2], tempbuf[255], *retrievebuf;
+{
+ int ret = 0;
+ struct sockaddr_un addr;
+ int len, num, numbytes;
+ int fd = -1;
+ int success;
+ unsigned char egdbuf[2], tempbuf[255], *retrievebuf;
- memset(&addr, 0, sizeof(addr));
- addr.sun_family = AF_UNIX;
- if (strlen(path) >= sizeof(addr.sun_path))
- return (-1);
- BUF_strlcpy(addr.sun_path,path,sizeof addr.sun_path);
- len = offsetof(struct sockaddr_un, sun_path) + strlen(path);
- fd = socket(AF_UNIX, SOCK_STREAM, 0);
- if (fd == -1) return (-1);
- success = 0;
- while (!success)
- {
- if (connect(fd, (struct sockaddr *)&addr, len) == 0)
- success = 1;
- else
- {
- switch (errno)
- {
-#ifdef EINTR
- case EINTR:
-#endif
-#ifdef EAGAIN
- case EAGAIN:
-#endif
-#ifdef EINPROGRESS
- case EINPROGRESS:
-#endif
-#ifdef EALREADY
- case EALREADY:
-#endif
- /* No error, try again */
- break;
-#ifdef EISCONN
- case EISCONN:
- success = 1;
- break;
-#endif
- default:
- goto err; /* failure */
- }
- }
- }
+ memset(&addr, 0, sizeof(addr));
+ addr.sun_family = AF_UNIX;
+ if (strlen(path) >= sizeof(addr.sun_path))
+ return (-1);
+ OPENSSL_strlcpy(addr.sun_path, path, sizeof addr.sun_path);
+ len = offsetof(struct sockaddr_un, sun_path) + strlen(path);
+ fd = socket(AF_UNIX, SOCK_STREAM, 0);
+ if (fd == -1)
+ return (-1);
+ success = 0;
+ while (!success) {
+ if (connect(fd, (struct sockaddr *)&addr, len) == 0)
+ success = 1;
+ else {
+ switch (errno) {
+# ifdef EINTR
+ case EINTR:
+# endif
+# ifdef EAGAIN
+ case EAGAIN:
+# endif
+# ifdef EINPROGRESS
+ case EINPROGRESS:
+# endif
+# ifdef EALREADY
+ case EALREADY:
+# endif
+ /* No error, try again */
+ break;
+# ifdef EISCONN
+ case EISCONN:
+ success = 1;
+ break;
+# endif
+ default:
+ ret = -1;
+ goto err; /* failure */
+ }
+ }
+ }
- while(bytes > 0)
- {
- egdbuf[0] = 1;
- egdbuf[1] = bytes < 255 ? bytes : 255;
- numbytes = 0;
- while (numbytes != 2)
- {
- num = write(fd, egdbuf + numbytes, 2 - numbytes);
- if (num >= 0)
- numbytes += num;
- else
- {
- switch (errno)
- {
-#ifdef EINTR
- case EINTR:
-#endif
-#ifdef EAGAIN
- case EAGAIN:
-#endif
- /* No error, try again */
- break;
- default:
- ret = -1;
- goto err; /* failure */
- }
- }
- }
- numbytes = 0;
- while (numbytes != 1)
- {
- num = read(fd, egdbuf, 1);
- if (num == 0)
- goto err; /* descriptor closed */
- else if (num > 0)
- numbytes += num;
- else
- {
- switch (errno)
- {
-#ifdef EINTR
- case EINTR:
-#endif
-#ifdef EAGAIN
- case EAGAIN:
-#endif
- /* No error, try again */
- break;
- default:
- ret = -1;
- goto err; /* failure */
- }
- }
- }
- if(egdbuf[0] == 0)
- goto err;
- if (buf)
- retrievebuf = buf + ret;
- else
- retrievebuf = tempbuf;
- numbytes = 0;
- while (numbytes != egdbuf[0])
- {
- num = read(fd, retrievebuf + numbytes, egdbuf[0] - numbytes);
- if (num == 0)
- goto err; /* descriptor closed */
- else if (num > 0)
- numbytes += num;
- else
- {
- switch (errno)
- {
-#ifdef EINTR
- case EINTR:
-#endif
-#ifdef EAGAIN
- case EAGAIN:
-#endif
- /* No error, try again */
- break;
- default:
- ret = -1;
- goto err; /* failure */
- }
- }
- }
- ret += egdbuf[0];
- bytes -= egdbuf[0];
- if (!buf)
- RAND_seed(tempbuf, egdbuf[0]);
- }
+ while (bytes > 0) {
+ egdbuf[0] = 1;
+ egdbuf[1] = bytes < 255 ? bytes : 255;
+ numbytes = 0;
+ while (numbytes != 2) {
+ num = write(fd, egdbuf + numbytes, 2 - numbytes);
+ if (num >= 0)
+ numbytes += num;
+ else {
+ switch (errno) {
+# ifdef EINTR
+ case EINTR:
+# endif
+# ifdef EAGAIN
+ case EAGAIN:
+# endif
+ /* No error, try again */
+ break;
+ default:
+ ret = -1;
+ goto err; /* failure */
+ }
+ }
+ }
+ numbytes = 0;
+ while (numbytes != 1) {
+ num = read(fd, egdbuf, 1);
+ if (num == 0)
+ goto err; /* descriptor closed */
+ else if (num > 0)
+ numbytes += num;
+ else {
+ switch (errno) {
+# ifdef EINTR
+ case EINTR:
+# endif
+# ifdef EAGAIN
+ case EAGAIN:
+# endif
+ /* No error, try again */
+ break;
+ default:
+ ret = -1;
+ goto err; /* failure */
+ }
+ }
+ }
+ if (egdbuf[0] == 0)
+ goto err;
+ if (buf)
+ retrievebuf = buf + ret;
+ else
+ retrievebuf = tempbuf;
+ numbytes = 0;
+ while (numbytes != egdbuf[0]) {
+ num = read(fd, retrievebuf + numbytes, egdbuf[0] - numbytes);
+ if (num == 0)
+ goto err; /* descriptor closed */
+ else if (num > 0)
+ numbytes += num;
+ else {
+ switch (errno) {
+# ifdef EINTR
+ case EINTR:
+# endif
+# ifdef EAGAIN
+ case EAGAIN:
+# endif
+ /* No error, try again */
+ break;
+ default:
+ ret = -1;
+ goto err; /* failure */
+ }
+ }
+ }
+ ret += egdbuf[0];
+ bytes -= egdbuf[0];
+ if (!buf)
+ RAND_seed(tempbuf, egdbuf[0]);
+ }
err:
- if (fd != -1) close(fd);
- return(ret);
- }
-
+ if (fd != -1)
+ close(fd);
+ return (ret);
+}
int RAND_egd_bytes(const char *path, int bytes)
- {
- int num, ret = 0;
+{
+ int num, ret = -1;
- num = RAND_query_egd_bytes(path, NULL, bytes);
- if (num < 1) goto err;
- if (RAND_status() == 1)
- ret = num;
+ num = RAND_query_egd_bytes(path, NULL, bytes);
+ if (num < 0)
+ goto err;
+ if (RAND_status() == 1)
+ ret = num;
err:
- return(ret);
- }
-
+ return (ret);
+}
int RAND_egd(const char *path)
- {
- return (RAND_egd_bytes(path, 255));
- }
+{
+ return (RAND_egd_bytes(path, 255));
+}
+# endif
#endif
projects / openssl.git / blobdiff