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-rw-r--r--lib/file.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/file.c b/lib/file.c
index 03aa265c38..ed044ff842 100644
--- a/lib/file.c
+++ b/lib/file.c
@@ -46,6 +46,10 @@ int _gnutls_file_exists(const char *file)
* zero terminated but the terminating null is not included in length.
* The returned data are allocated using gnutls_malloc().
*
+ * Note that this function is not designed for reading sensitive materials,
+ * such as private keys, on practical applications. When the reading fails
+ * in the middle, the partially loaded content might remain on memory.
+ *
* Returns: On success, %GNUTLS_E_SUCCESS (0) is returned, otherwise
* an error code is returned.
*