X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fbuffer%2Fbuffer.c;h=3bf03c7eff07f1056b583661c40f3eec4704ef46;hb=71fc9b37aedb0ee7e664fba53696a11d0b879dd7;hp=c3a108ea52115af420c0c005f468e0d443e27208;hpb=ec577822f95a8bca0023c5c77cef1a4916822d4a;p=oweals%2Fopenssl.git

diff --git a/crypto/buffer/buffer.c b/crypto/buffer/buffer.c
index c3a108ea52..3bf03c7eff 100644
--- a/crypto/buffer/buffer.c
+++ b/crypto/buffer/buffer.c
@@ -64,7 +64,7 @@ BUF_MEM *BUF_MEM_new(void)
 	{
 	BUF_MEM *ret;
 
-	ret=Malloc(sizeof(BUF_MEM));
+	ret=OPENSSL_malloc(sizeof(BUF_MEM));
 	if (ret == NULL)
 		{
 		BUFerr(BUF_F_BUF_MEM_NEW,ERR_R_MALLOC_FAILURE);
@@ -84,9 +84,9 @@ void BUF_MEM_free(BUF_MEM *a)
 	if (a->data != NULL)
 		{
 		memset(a->data,0,(unsigned int)a->max);
-		Free(a->data);
+		OPENSSL_free(a->data);
 		}
-	Free(a);
+	OPENSSL_free(a);
 	}
 
 int BUF_MEM_grow(BUF_MEM *str, int len)
@@ -107,9 +107,9 @@ int BUF_MEM_grow(BUF_MEM *str, int len)
 		}
 	n=(len+3)/3*4;
 	if (str->data == NULL)
-		ret=Malloc(n);
+		ret=OPENSSL_malloc(n);
 	else
-		ret=Realloc(str->data,n);
+		ret=OPENSSL_realloc(str->data,n);
 	if (ret == NULL)
 		{
 		BUFerr(BUF_F_BUF_MEM_GROW,ERR_R_MALLOC_FAILURE);
@@ -118,27 +118,104 @@ int BUF_MEM_grow(BUF_MEM *str, int len)
 	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;
-	int n;
 
 	if (str == NULL) return(NULL);
 
-	n=strlen(str);
-	ret=Malloc(n+1);
+	ret=OPENSSL_malloc(siz+1);
 	if (ret == NULL) 
 		{
-		BUFerr(BUF_F_BUF_STRDUP,ERR_R_MALLOC_FAILURE);
+		BUFerr(BUF_F_BUF_STRNDUP,ERR_R_MALLOC_FAILURE);
 		return(NULL);
 		}
-	memcpy(ret,str,n+1);
+	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);
+	}