add buf_str.c file

diff --git a/crypto/buffer/buf_str.c b/crypto/buffer/buf_str.c
new file mode 100644 (file)
index 0000000..151f5ea
--- /dev/null
+++ b/crypto/buffer/buf_str.c
@@ -0,0 +1,119 @@
+/* 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>
+
+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);
+       }