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From: Florian Weimer <>
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: <> (raw)

(cherry picked from commit 02cd5c1a8d033d7f91fea12a66bb44d1bbf85f76)

2018-12-01  Florian Weimer  <>

	* 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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