1 files changed, 85 insertions, 4 deletions

diff --git a/openssl/crypto/buffer/buffer.c b/openssl/crypto/buffer/buffer.c
index b3e947771..620ea8d53 100644
--- a/openssl/crypto/buffer/buffer.c
+++ b/openssl/crypto/buffer/buffer.c
@@ -89,10 +89,10 @@ void BUF_MEM_free(BUF_MEM *a)
 	OPENSSL_free(a);
 	}
 
-int BUF_MEM_grow(BUF_MEM *str, int len)
+int BUF_MEM_grow(BUF_MEM *str, size_t len)
 	{
 	char *ret;
-	unsigned int n;
+	size_t n;
 
 	if (str->length >= len)
 		{
@@ -125,10 +125,10 @@ int BUF_MEM_grow(BUF_MEM *str, int len)
 	return(len);
 	}
 
-int BUF_MEM_grow_clean(BUF_MEM *str, int len)
+int BUF_MEM_grow_clean(BUF_MEM *str, size_t len)
 	{
 	char *ret;
-	unsigned int n;
+	size_t n;
 
 	if (str->length >= len)
 		{
@@ -161,3 +161,84 @@ int BUF_MEM_grow_clean(BUF_MEM *str, int 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);
+	}
+
+void BUF_reverse(unsigned char *out, unsigned char *in, size_t size)
+	{
+	size_t i;
+	if (in)
+		{
+		out += size - 1;
+		for (i = 0; i < size; i++)
+			*in++ = *out--;
+		}
+	else
+		{
+		unsigned char *q;
+		char c;
+		q = out + size - 1;
+		for (i = 0; i < size/2; i++)
+			{
+			c = *q;
+			*q-- = *out;
+			*out++ = c;
+			}
+		}
+	}