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Diffstat (limited to 'libc/unistd/getpass.c')
-rw-r--r--libc/unistd/getpass.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/libc/unistd/getpass.c b/libc/unistd/getpass.c
index 8ebc985df..ac2159036 100644
--- a/libc/unistd/getpass.c
+++ b/libc/unistd/getpass.c
@@ -63,8 +63,11 @@ getpass (prompt)
/* Tricky, tricky. */
t.c_lflag &= ~(ECHO|ISIG);
tty_changed = (tcsetattr (fileno (in), TCSAFLUSH|TCSASOFT, &t) == 0);
- /* Disable buffering for input FILE to prevent the buffering from flushing. */
- setvbuf(in, NULL, _IOLBF, 0);
+ if (in != stdin) {
+ /* Disable buffering for read/write FILE to prevent problems with
+ * fseek and buffering for read/write auto-transitioning. */
+ setvbuf(in, NULL, _IONBF, 0);
+ }
}
else
tty_changed = 0;
@@ -93,8 +96,6 @@ getpass (prompt)
/* Restore the original setting. */
if (tty_changed) {
(void) tcsetattr (fileno (in), TCSAFLUSH|TCSASOFT, &s);
- /* Re-enable buffering. */
- setlinebuf(in);
}
if (in != stdin)