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- From 8c5853b8e22f34bc1c1acba278f7850ab7946894 Mon Sep 17 00:00:00 2001
- From: Yousong Zhou <yszhou4tech@gmail.com>
- Date: Tue, 28 Apr 2015 21:26:15 +0800
- Subject: [PATCH 1/7] xl2tpd-control: check end-of-file when reading pipe to
- avoid dead loop.
-
- ---
- xl2tpd-control.c | 11 +++++++----
- 1 file changed, 7 insertions(+), 4 deletions(-)
-
- --- a/xl2tpd-control.c
- +++ b/xl2tpd-control.c
- @@ -306,17 +306,20 @@ int read_result(int result_fd, char* buf
- /*FIXME: there is a chance to hang up reading.
- Should I create watching thread with timeout?
- */
- - ssize_t readed;
- + ssize_t readed = 0;
- + ssize_t len;
- +
- do
- {
- - readed = read (result_fd, buf, size);
- - if (readed < 0)
- + len = read (result_fd, buf + readed, size - readed);
- + if (len < 0)
- {
- print_error (ERROR_LEVEL,
- "error: can't read command result: %s\n", strerror (errno));
- break;
- }
- - } while (readed == 0);
- + readed += len;
- + } while (len > 0 && (size - readed) > 0);
- buf[readed] = '\0';
-
- /* scan result code */
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