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authorSimon L. B. Nielsen <simon@FreeBSD.org>2008-08-23 10:51:00 +0000
committerSimon L. B. Nielsen <simon@FreeBSD.org>2008-08-23 10:51:00 +0000
commitc4a78426bef17a0a7c81195c2b2399e7441f14ad (patch)
tree596c39f00d5968b1519e8cd7f0546412b14c20f0 /crypto/buffer/buffer.c
parenta0ddfe4e7233d81e88a86217b7653708db2720fa (diff)
downloadsrc-c4a78426bef17a0a7c81195c2b2399e7441f14ad.tar.gz
src-c4a78426bef17a0a7c81195c2b2399e7441f14ad.zip
Flatten OpenSSL vendor tree.
Notes
Notes: svn path=/vendor-crypto/openssl/dist/; revision=182044
Diffstat (limited to 'crypto/buffer/buffer.c')
-rw-r--r--crypto/buffer/buffer.c221
1 files changed, 221 insertions, 0 deletions
diff --git a/crypto/buffer/buffer.c b/crypto/buffer/buffer.c
new file mode 100644
index 000000000000..3bf03c7eff07
--- /dev/null
+++ b/crypto/buffer/buffer.c
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+/* crypto/buffer/buffer.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 <stdio.h>
+#include "cryptlib.h"
+#include <openssl/buffer.h>
+
+BUF_MEM *BUF_MEM_new(void)
+ {
+ BUF_MEM *ret;
+
+ ret=OPENSSL_malloc(sizeof(BUF_MEM));
+ if (ret == NULL)
+ {
+ BUFerr(BUF_F_BUF_MEM_NEW,ERR_R_MALLOC_FAILURE);
+ return(NULL);
+ }
+ ret->length=0;
+ ret->max=0;
+ ret->data=NULL;
+ return(ret);
+ }
+
+void BUF_MEM_free(BUF_MEM *a)
+ {
+ if(a == NULL)
+ return;
+
+ if (a->data != NULL)
+ {
+ memset(a->data,0,(unsigned int)a->max);
+ OPENSSL_free(a->data);
+ }
+ OPENSSL_free(a);
+ }
+
+int BUF_MEM_grow(BUF_MEM *str, int len)
+ {
+ char *ret;
+ unsigned int n;
+
+ if (str->length >= len)
+ {
+ str->length=len;
+ return(len);
+ }
+ if (str->max >= len)
+ {
+ memset(&str->data[str->length],0,len-str->length);
+ str->length=len;
+ return(len);
+ }
+ n=(len+3)/3*4;
+ if (str->data == NULL)
+ ret=OPENSSL_malloc(n);
+ else
+ ret=OPENSSL_realloc(str->data,n);
+ if (ret == NULL)
+ {
+ BUFerr(BUF_F_BUF_MEM_GROW,ERR_R_MALLOC_FAILURE);
+ len=0;
+ }
+ else
+ {
+ str->data=ret;
+ str->max=n;
+ memset(&str->data[str->length],0,len-str->length);
+ str->length=len;
+ }
+ return(len);
+ }
+
+int BUF_MEM_grow_clean(BUF_MEM *str, int len)
+ {
+ char *ret;
+ unsigned int n;
+
+ if (str->length >= len)
+ {
+ memset(&str->data[len],0,str->length-len);
+ str->length=len;
+ return(len);
+ }
+ if (str->max >= len)
+ {
+ memset(&str->data[str->length],0,len-str->length);
+ str->length=len;
+ return(len);
+ }
+ n=(len+3)/3*4;
+ if (str->data == NULL)
+ ret=OPENSSL_malloc(n);
+ else
+ ret=OPENSSL_realloc_clean(str->data,str->max,n);
+ if (ret == NULL)
+ {
+ BUFerr(BUF_F_BUF_MEM_GROW_CLEAN,ERR_R_MALLOC_FAILURE);
+ len=0;
+ }
+ else
+ {
+ str->data=ret;
+ str->max=n;
+ memset(&str->data[str->length],0,len-str->length);
+ str->length=len;
+ }
+ return(len);
+ }
+
+char *BUF_strdup(const char *str)
+ {
+ if (str == NULL) return(NULL);
+ return BUF_strndup(str, strlen(str));
+ }
+
+char *BUF_strndup(const char *str, size_t siz)
+ {
+ char *ret;
+
+ if (str == NULL) return(NULL);
+
+ ret=OPENSSL_malloc(siz+1);
+ if (ret == NULL)
+ {
+ BUFerr(BUF_F_BUF_STRNDUP,ERR_R_MALLOC_FAILURE);
+ return(NULL);
+ }
+ BUF_strlcpy(ret,str,siz+1);
+ return(ret);
+ }
+
+void *BUF_memdup(const void *data, size_t siz)
+ {
+ void *ret;
+
+ if (data == NULL) return(NULL);
+
+ ret=OPENSSL_malloc(siz);
+ if (ret == NULL)
+ {
+ BUFerr(BUF_F_BUF_MEMDUP,ERR_R_MALLOC_FAILURE);
+ return(NULL);
+ }
+ return memcpy(ret, data, siz);
+ }
+
+size_t BUF_strlcpy(char *dst, const char *src, size_t size)
+ {
+ size_t l = 0;
+ for(; size > 1 && *src; size--)
+ {
+ *dst++ = *src++;
+ l++;
+ }
+ if (size)
+ *dst = '\0';
+ return l + strlen(src);
+ }
+
+size_t BUF_strlcat(char *dst, const char *src, size_t size)
+ {
+ size_t l = 0;
+ for(; size > 0 && *dst; size--, dst++)
+ l++;
+ return l + BUF_strlcpy(dst, src, size);
+ }