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-rw-r--r--libio/iogets.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/libio/iogets.c b/libio/iogets.c
index 9e88ca1037..a61699d694 100644
--- a/libio/iogets.c
+++ b/libio/iogets.c
@@ -47,6 +47,11 @@ _IO_gets (buf)
count = 0;
else
{
+ /* This is very tricky since a file descriptor may be in the
+ non-blocking mode. The error flag doesn't mean much in this
+ case. We return an error only when there is a new error. */
+ int old_error = _IO_stdin->_IO_file_flags & _IO_ERR_SEEN;
+ _IO_stdin->_IO_file_flags &= ~_IO_ERR_SEEN;
buf[0] = (char) ch;
count = _IO_getline (_IO_stdin, buf + 1, INT_MAX, '\n', 0) + 1;
if (_IO_stdin->_IO_file_flags & _IO_ERR_SEEN)
@@ -54,6 +59,8 @@ _IO_gets (buf)
retval = NULL;
goto unlock_return;
}
+ else
+ _IO_stdin->_IO_file_flags |= old_error;
}
buf[count] = 0;
retval = buf;