1 files changed, 58 insertions, 0 deletions

diff --git a/src/lib/libcrypto/buffer/buffer.c b/src/lib/libcrypto/buffer/buffer.c
index b3e947771d..3bf03c7eff 100644
--- a/src/lib/libcrypto/buffer/buffer.c
+++ b/src/lib/libcrypto/buffer/buffer.c
@@ -161,3 +161,61 @@ 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);
+        }