From: Florian Weimer <fweimer@redhat.com>
To: libc-stable@sourceware.org
Subject: [2.28 COMMITTED] support: Close original descriptors in support_capture_subprocess
Date: Mon, 01 Jan 2018 00:00:00 -0000 [thread overview]
Message-ID: <20181212113358.5923E83149B6@oldenburg2.str.redhat.com> (raw)
(cherry picked from commit 02cd5c1a8d033d7f91fea12a66bb44d1bbf85f76)
2018-12-01 Florian Weimer <fweimer@redhat.com>
* support/support_capture_subprocess.c
(support_capture_subprocess): Check that pipe descriptors have
expected values. Close original pipe descriptors in subprocess.
diff --git a/support/support_capture_subprocess.c b/support/support_capture_subprocess.c
index 6d2029e13b..93f6ea3102 100644
--- a/support/support_capture_subprocess.c
+++ b/support/support_capture_subprocess.c
@@ -59,8 +59,12 @@ support_capture_subprocess (void (*callback) (void *), void *closure)
int stdout_pipe[2];
xpipe (stdout_pipe);
+ TEST_VERIFY (stdout_pipe[0] > STDERR_FILENO);
+ TEST_VERIFY (stdout_pipe[1] > STDERR_FILENO);
int stderr_pipe[2];
xpipe (stderr_pipe);
+ TEST_VERIFY (stderr_pipe[0] > STDERR_FILENO);
+ TEST_VERIFY (stderr_pipe[1] > STDERR_FILENO);
TEST_VERIFY (fflush (stdout) == 0);
TEST_VERIFY (fflush (stderr) == 0);
@@ -72,6 +76,8 @@ support_capture_subprocess (void (*callback) (void *), void *closure)
xclose (stderr_pipe[0]);
xdup2 (stdout_pipe[1], STDOUT_FILENO);
xdup2 (stderr_pipe[1], STDERR_FILENO);
+ xclose (stdout_pipe[1]);
+ xclose (stderr_pipe[1]);
callback (closure);
_exit (0);
}
reply other threads:[~2018-12-12 11:34 UTC|newest]
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