util-linux/fdisk-fix-quit-dialog-for-non-libreadline-version.patch

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From 40af0db4cdadc50d9ba7ea77d8fa0689bf976f9f Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Thu, 5 Sep 2019 12:34:01 +0200
Subject: [PATCH] fdisk: fix quit dialog for non-libreadline version
We need to clear stdin errors otherwise it returns EOF forever after
CTRL+D.
Reported-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
---
disk-utils/fdisk.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/disk-utils/fdisk.c b/disk-utils/fdisk.c
index 81334d0..0502fa3 100644
--- a/disk-utils/fdisk.c
+++ b/disk-utils/fdisk.c
@@ -109,6 +109,7 @@ int get_user_reply(const char *prompt, char *buf, size_t bufsz)
if (is_interactive)
rl_callback_handler_install(prompt, reply_linehandler);
#endif
+ errno = 0;
reply_running = 1;
do {
int rc;
@@ -158,6 +159,7 @@ int get_user_reply(const char *prompt, char *buf, size_t bufsz)
if (!*buf) {
DBG(ASK, ul_debug("cancel by CTRL+D"));
ret = -ECANCELED;
+ clearerr(stdin);
goto done;
}
@@ -168,13 +170,13 @@ int get_user_reply(const char *prompt, char *buf, size_t bufsz)
if (sz && *(buf + sz - 1) == '\n')
*(buf + sz - 1) = '\0';
- DBG(ASK, ul_debug("user's reply: >>>%s<<<", buf));
done:
#ifdef HAVE_LIBREADLINE
if (is_interactive)
rl_callback_handler_remove();
#endif
sigaction(SIGINT, &oldact, NULL);
+ DBG(ASK, ul_debug("user's reply: >>>%s<<< [rc=%d]", buf, ret));
return ret;
}
--
1.8.3.1