utils: set_stdfds()

non-functional changes Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

utils: set_stdfds()
bbbf65ee · Christian Brauner · c5b93afb · bbbf65ee
Unverified Commit bbbf65ee authored Jul 10, 2017 by Christian Brauner
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Showing with 10 additions and 3 deletions

utils.c src/lxc/utils.c +10 -3

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--- a/src/lxc/utils.c
+++ b/src/lxc/utils.c
@@ -1822,14 +1822,21 @@ int open_devnull(void)

 int set_stdfds(int fd)
 {
+	int ret;
+
 	if (fd < 0)
 		return -1;

-	if (dup2(fd, 0) < 0)
+	ret = dup2(fd, STDIN_FILENO);
+	if (ret < 0)
 		return -1;
-	if (dup2(fd, 1) < 0)
+
+	ret = dup2(fd, STDOUT_FILENO);
+	if (ret < 0)
 		return -1;
-	if (dup2(fd, 2) < 0)
+
+	ret = dup2(fd, STDERR_FILENO);
+	if (ret < 0)
 		return -1;

 	return 0;