From: Long Wang <w@laoqinren.net>
Date: Sat, 8 Jul 2017 05:27:16 +0000 (+0800)
Subject: utils: close parent end in child process after fork
X-Git-Tag: lxc-1.0.11~23
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dcc6437d91a52b57aa53ec9cf0acf60baac9f90e;p=thirdparty%2Flxc.git

utils: close parent end in child process after fork

Signed-off-by: Long Wang <w@laoqinren.net>
---

diff --git a/src/lxc/utils.c b/src/lxc/utils.c
index 620f05256..9f32f334b 100644
--- a/src/lxc/utils.c
+++ b/src/lxc/utils.c
@@ -438,6 +438,9 @@ extern struct lxc_popen_FILE *lxc_popen(const char *command)
 		/* child */
 		int child_std_end = STDOUT_FILENO;
 
+		close(parent_end);
+		parent_end = -1;
+
 		if (child_end != child_std_end) {
 			/* dup2() doesn't dup close-on-exec flag */
 			dup2(child_end, child_std_end);