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-rw-r--r--src/echoes.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/echoes.c b/src/echoes.c
index 7274e52..bc8d3ff 100644
--- a/src/echoes.c
+++ b/src/echoes.c
@@ -47,6 +47,9 @@ static struct termios saved_stty;
/**
* Disable echoing and do anything else to the terminal settnings `passphrase_read` requires
*/
+#if defined(__GNUC__) && !defined(NEED_TERMIOS)
+__attribute__((const))
+#endif /* __GNUC__ && !NEED_TERMIOS */
void passphrase_disable_echo(void)
{
passphrase_disable_echo1(STDIN_FILENO);
@@ -56,6 +59,9 @@ void passphrase_disable_echo(void)
/**
* Undo the actions of `passphrase_disable_echo`
*/
+#if defined(__GNUC__) && !defined(NEED_TERMIOS)
+__attribute__((const))
+#endif /* __GNUC__ && !NEED_TERMIOS */
void passphrase_reenable_echo(void)
{
passphrase_reenable_echo1(STDIN_FILENO);