-/* 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.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * 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.]
+ * 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 <stdio.h>
static int mem_free(BIO *data);
static int mem_buf_free(BIO *data, int free_all);
static int mem_buf_sync(BIO *h);
+
static const BIO_METHOD mem_method = {
BIO_TYPE_MEM,
"memory buffer",
+ /* TODO: Convert to new style write function */
+ bwrite_conv,
mem_write,
+ /* TODO: Convert to new style read function */
+ bread_conv,
mem_read,
mem_puts,
mem_gets,
mem_free,
NULL,
};
+
static const BIO_METHOD secmem_method = {
BIO_TYPE_MEM,
"secure memory buffer",
+ /* TODO: Convert to new style write function */
+ bwrite_conv,
mem_write,
+ /* TODO: Convert to new style read function */
+ bread_conv,
mem_read,
mem_puts,
mem_gets,
NULL,
};
+/* BIO memory stores buffer and read pointer */
+typedef struct bio_buf_mem_st {
+ struct buf_mem_st *buf; /* allocated buffer */
+ struct buf_mem_st *readp; /* read pointer */
+} BIO_BUF_MEM;
+
/*
* bio->num is used to hold the value to return on 'empty', if it is 0,
* should_retry is not set
const BIO_METHOD *BIO_s_mem(void)
{
- return (&mem_method);
+ return &mem_method;
}
const BIO_METHOD *BIO_s_secmem(void)
b->max = sz;
*bb->readp = *bb->buf;
ret->flags |= BIO_FLAGS_MEM_RDONLY;
- /* Since this is static data retrying wont help */
+ /* Since this is static data retrying won't help */
ret->num = 0;
return ret;
}
static int mem_init(BIO *bi, unsigned long flags)
{
- BIO_BUF_MEM *bb = OPENSSL_zalloc(sizeof(BIO_BUF_MEM));
+ BIO_BUF_MEM *bb = OPENSSL_zalloc(sizeof(*bb));
if (bb == NULL)
- return(0);
- if ((bb->buf = BUF_MEM_new_ex(flags)) == NULL)
- return(0);
- if ((bb->readp = OPENSSL_zalloc(sizeof(BUF_MEM))) == NULL)
- return(0);
+ return 0;
+ if ((bb->buf = BUF_MEM_new_ex(flags)) == NULL) {
+ OPENSSL_free(bb);
+ return 0;
+ }
+ if ((bb->readp = OPENSSL_zalloc(sizeof(*bb->readp))) == NULL) {
+ BUF_MEM_free(bb->buf);
+ OPENSSL_free(bb);
+ return 0;
+ }
*bb->readp = *bb->buf;
bi->shutdown = 1;
bi->init = 1;
bi->num = -1;
bi->ptr = (char *)bb;
- return(1);
+ return 1;
}
static int mem_new(BIO *bi)
{
- return (mem_init(bi, 0L));
+ return mem_init(bi, 0L);
}
static int secmem_new(BIO *bi)
{
- return (mem_init(bi, BUF_MEM_FLAG_SECURE));
+ return mem_init(bi, BUF_MEM_FLAG_SECURE);
}
static int mem_free(BIO *a)
{
- return (mem_buf_free(a, 1));
+ return mem_buf_free(a, 1);
}
static int mem_buf_free(BIO *a, int free_all)
{
if (a == NULL)
- return (0);
- if (a->shutdown) {
- if ((a->init) && (a->ptr != NULL)) {
- BUF_MEM *b;
- BIO_BUF_MEM *bb = (BIO_BUF_MEM *)a->ptr;
-
- if(bb != NULL) {
- b = bb->buf;
- if (a->flags & BIO_FLAGS_MEM_RDONLY)
- b->data = NULL;
- BUF_MEM_free(b);
- if(free_all) {
- OPENSSL_free(bb->readp);
- OPENSSL_free(bb);
- }
- }
- a->ptr = NULL;
+ return 0;
+
+ if (a->shutdown && a->init && a->ptr != NULL) {
+ BIO_BUF_MEM *bb = (BIO_BUF_MEM *)a->ptr;
+ BUF_MEM *b = bb->buf;
+
+ if (a->flags & BIO_FLAGS_MEM_RDONLY)
+ b->data = NULL;
+ BUF_MEM_free(b);
+ if (free_all) {
+ OPENSSL_free(bb->readp);
+ OPENSSL_free(bb);
}
+ a->ptr = NULL;
}
- return (1);
+ return 1;
}
/*
*/
static int mem_buf_sync(BIO *b)
{
- if((b != NULL) && (b->init) && (b->ptr != NULL)) {
+ if (b != NULL && b->init != 0 && b->ptr != NULL) {
BIO_BUF_MEM *bbm = (BIO_BUF_MEM *)b->ptr;
- if(bbm->readp->data != bbm->buf->data) {
+ if (bbm->readp->data != bbm->buf->data) {
memmove(bbm->buf->data, bbm->readp->data, bbm->readp->length);
bbm->buf->length = bbm->readp->length;
bbm->readp->data = bbm->buf->data;
}
}
- return (0);
+ return 0;
}
static int mem_read(BIO *b, char *out, int outl)
if (ret != 0)
BIO_set_retry_read(b);
}
- return (ret);
+ return ret;
}
static int mem_write(BIO *b, const char *in, int inl)
*bbm->readp = *bbm->buf;
ret = inl;
end:
- return (ret);
+ return ret;
}
static long mem_ctrl(BIO *b, int cmd, long num, void *ptr)
ret = 0;
break;
}
- return (ret);
+ return ret;
}
static int mem_gets(BIO *bp, char *buf, int size)
if (i > 0)
buf[i] = '\0';
ret = i;
- return (ret);
+ return ret;
}
static int mem_puts(BIO *bp, const char *str)
n = strlen(str);
ret = mem_write(bp, str, n);
/* memory semantics is that it will always work */
- return (ret);
+ return ret;
}
projects / openssl.git / blobdiff